From 3499832c3cf408869b556e6a2c5280fb20df6db8 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Andr=C3=A9=20Bargull?= <andre.bargull@gmail.com>
Date: Thu, 28 Sep 2023 15:15:34 +0200
Subject: [PATCH] Update built-ins/Object/defineProperty to use verifyProperty

---
 .../Object/defineProperty/15.2.3.6-3-100.js   |  5 +++--
 .../Object/defineProperty/15.2.3.6-3-102.js   |  5 +++--
 .../Object/defineProperty/15.2.3.6-3-103.js   |  5 +++--
 .../Object/defineProperty/15.2.3.6-3-104.js   |  5 +++--
 .../Object/defineProperty/15.2.3.6-3-105.js   |  5 +++--
 .../Object/defineProperty/15.2.3.6-3-106.js   |  5 +++--
 .../Object/defineProperty/15.2.3.6-3-109.js   |  5 +++--
 .../Object/defineProperty/15.2.3.6-3-152.js   |  7 ++++---
 .../Object/defineProperty/15.2.3.6-3-153.js   |  5 +++--
 .../Object/defineProperty/15.2.3.6-3-162.js   |  5 +++--
 .../Object/defineProperty/15.2.3.6-3-163.js   |  5 +++--
 .../Object/defineProperty/15.2.3.6-3-164.js   |  5 +++--
 .../Object/defineProperty/15.2.3.6-3-171-1.js |  4 +++-
 .../Object/defineProperty/15.2.3.6-3-178.js   |  5 +++--
 .../Object/defineProperty/15.2.3.6-3-179.js   |  5 +++--
 .../Object/defineProperty/15.2.3.6-3-181.js   |  5 +++--
 .../Object/defineProperty/15.2.3.6-3-182.js   |  5 +++--
 .../Object/defineProperty/15.2.3.6-3-183.js   |  5 +++--
 .../Object/defineProperty/15.2.3.6-3-184.js   |  5 +++--
 .../Object/defineProperty/15.2.3.6-3-185.js   |  9 ++++-----
 .../Object/defineProperty/15.2.3.6-3-188.js   |  5 +++--
 .../Object/defineProperty/15.2.3.6-3-73.js    |  5 +++--
 .../Object/defineProperty/15.2.3.6-3-74.js    |  5 +++--
 .../Object/defineProperty/15.2.3.6-3-76.js    | 11 ++++------
 .../Object/defineProperty/15.2.3.6-3-83.js    |  5 +++--
 .../Object/defineProperty/15.2.3.6-3-84.js    |  5 +++--
 .../Object/defineProperty/15.2.3.6-3-85.js    |  7 +++----
 .../Object/defineProperty/15.2.3.6-3-99.js    |  5 +++--
 .../Object/defineProperty/15.2.3.6-4-100.js   | 12 +++++------
 .../Object/defineProperty/15.2.3.6-4-101.js   | 12 +++++------
 .../Object/defineProperty/15.2.3.6-4-102.js   | 12 +++++------
 .../Object/defineProperty/15.2.3.6-4-103.js   | 12 +++++------
 .../Object/defineProperty/15.2.3.6-4-104.js   | 12 +++++------
 .../Object/defineProperty/15.2.3.6-4-105.js   | 13 ++++++------
 .../Object/defineProperty/15.2.3.6-4-106.js   | 12 +++++------
 .../Object/defineProperty/15.2.3.6-4-107.js   |  7 ++++---
 .../Object/defineProperty/15.2.3.6-4-108.js   |  7 ++++---
 .../Object/defineProperty/15.2.3.6-4-109.js   |  7 ++++---
 .../Object/defineProperty/15.2.3.6-4-110.js   |  7 ++++---
 .../Object/defineProperty/15.2.3.6-4-112.js   |  7 ++++---
 .../Object/defineProperty/15.2.3.6-4-113.js   |  7 ++++---
 .../Object/defineProperty/15.2.3.6-4-114.js   |  7 ++++---
 .../Object/defineProperty/15.2.3.6-4-115.js   |  7 ++++---
 .../Object/defineProperty/15.2.3.6-4-118.js   |  9 ++++++---
 .../Object/defineProperty/15.2.3.6-4-119.js   |  9 ++++++---
 .../Object/defineProperty/15.2.3.6-4-124.js   | 12 +++++------
 .../Object/defineProperty/15.2.3.6-4-167.js   |  7 +++++--
 .../Object/defineProperty/15.2.3.6-4-181.js   |  8 +++++---
 .../Object/defineProperty/15.2.3.6-4-190.js   | 15 +++++++-------
 .../Object/defineProperty/15.2.3.6-4-194.js   | 10 +++++-----
 .../Object/defineProperty/15.2.3.6-4-195.js   |  7 ++++---
 .../Object/defineProperty/15.2.3.6-4-199.js   | 13 ++++++------
 .../Object/defineProperty/15.2.3.6-4-200.js   | 13 ++++++------
 .../Object/defineProperty/15.2.3.6-4-201.js   | 12 +++++------
 .../Object/defineProperty/15.2.3.6-4-202.js   | 12 +++++------
 .../Object/defineProperty/15.2.3.6-4-203.js   | 12 +++++------
 .../Object/defineProperty/15.2.3.6-4-204.js   | 13 ++++++------
 .../Object/defineProperty/15.2.3.6-4-205.js   |  7 ++++---
 .../Object/defineProperty/15.2.3.6-4-207.js   |  7 ++++---
 .../Object/defineProperty/15.2.3.6-4-208.js   |  7 ++++---
 .../Object/defineProperty/15.2.3.6-4-209.js   |  7 ++++---
 .../Object/defineProperty/15.2.3.6-4-210.js   | 12 +++++------
 .../Object/defineProperty/15.2.3.6-4-211.js   |  7 ++++---
 .../Object/defineProperty/15.2.3.6-4-212.js   | 13 ++++++------
 .../Object/defineProperty/15.2.3.6-4-213.js   |  7 ++++---
 .../Object/defineProperty/15.2.3.6-4-214.js   | 16 +++++++--------
 .../Object/defineProperty/15.2.3.6-4-215.js   | 12 +++++------
 .../Object/defineProperty/15.2.3.6-4-216.js   | 12 +++++------
 .../Object/defineProperty/15.2.3.6-4-217.js   | 12 +++++------
 .../Object/defineProperty/15.2.3.6-4-218.js   | 16 +++++++--------
 .../Object/defineProperty/15.2.3.6-4-219.js   | 16 +++++++--------
 .../Object/defineProperty/15.2.3.6-4-220.js   | 12 +++++------
 .../Object/defineProperty/15.2.3.6-4-221.js   | 16 +++++++--------
 .../Object/defineProperty/15.2.3.6-4-222.js   | 12 +++++------
 .../Object/defineProperty/15.2.3.6-4-223.js   | 16 +++++++--------
 .../Object/defineProperty/15.2.3.6-4-224.js   | 12 +++++------
 .../Object/defineProperty/15.2.3.6-4-225.js   | 16 +++++++--------
 .../Object/defineProperty/15.2.3.6-4-226.js   | 11 +++++-----
 .../Object/defineProperty/15.2.3.6-4-227.js   | 16 +++++++--------
 .../Object/defineProperty/15.2.3.6-4-228.js   | 12 +++++------
 .../Object/defineProperty/15.2.3.6-4-229.js   | 12 +++++------
 .../Object/defineProperty/15.2.3.6-4-230.js   |  7 ++++---
 .../Object/defineProperty/15.2.3.6-4-231.js   |  7 ++++---
 .../Object/defineProperty/15.2.3.6-4-232.js   |  7 ++++---
 .../Object/defineProperty/15.2.3.6-4-233.js   |  7 ++++---
 .../Object/defineProperty/15.2.3.6-4-234.js   | 12 +++++------
 .../Object/defineProperty/15.2.3.6-4-235.js   | 12 +++++------
 .../Object/defineProperty/15.2.3.6-4-236.js   | 12 +++++------
 .../Object/defineProperty/15.2.3.6-4-237.js   | 12 +++++------
 .../Object/defineProperty/15.2.3.6-4-238.js   | 17 +++++++---------
 .../Object/defineProperty/15.2.3.6-4-239.js   | 17 +++++++---------
 .../Object/defineProperty/15.2.3.6-4-240.js   | 10 +++++-----
 .../Object/defineProperty/15.2.3.6-4-241.js   | 17 +++++++---------
 .../Object/defineProperty/15.2.3.6-4-242-1.js | 13 ++++++------
 .../Object/defineProperty/15.2.3.6-4-242.js   |  7 ++++---
 .../Object/defineProperty/15.2.3.6-4-243-1.js |  7 ++++---
 .../Object/defineProperty/15.2.3.6-4-243-2.js |  7 ++++---
 .../Object/defineProperty/15.2.3.6-4-243.js   | 13 ++++++------
 .../Object/defineProperty/15.2.3.6-4-244.js   | 18 +++++++----------
 .../Object/defineProperty/15.2.3.6-4-245.js   | 16 +++++++--------
 .../Object/defineProperty/15.2.3.6-4-246.js   | 17 +++++++---------
 .../Object/defineProperty/15.2.3.6-4-247.js   | 16 +++++++--------
 .../Object/defineProperty/15.2.3.6-4-248.js   | 16 +++++++--------
 .../Object/defineProperty/15.2.3.6-4-249.js   | 16 +++++++--------
 .../Object/defineProperty/15.2.3.6-4-250.js   | 16 +++++++--------
 .../Object/defineProperty/15.2.3.6-4-251.js   | 16 +++++++--------
 .../Object/defineProperty/15.2.3.6-4-252.js   | 10 +++++-----
 .../Object/defineProperty/15.2.3.6-4-253.js   | 10 +++++-----
 .../Object/defineProperty/15.2.3.6-4-254.js   |  6 ++++--
 .../Object/defineProperty/15.2.3.6-4-255.js   |  8 +++++---
 .../Object/defineProperty/15.2.3.6-4-256.js   |  6 ++++--
 .../Object/defineProperty/15.2.3.6-4-257.js   |  7 ++++---
 .../Object/defineProperty/15.2.3.6-4-258.js   | 12 +++++------
 .../Object/defineProperty/15.2.3.6-4-259.js   | 12 +++++------
 .../Object/defineProperty/15.2.3.6-4-260.js   | 12 +++++------
 .../Object/defineProperty/15.2.3.6-4-261.js   | 12 +++++------
 .../Object/defineProperty/15.2.3.6-4-262.js   | 12 +++++------
 .../Object/defineProperty/15.2.3.6-4-263.js   | 12 +++++------
 .../Object/defineProperty/15.2.3.6-4-264.js   | 12 +++++------
 .../Object/defineProperty/15.2.3.6-4-265.js   |  7 ++++---
 .../Object/defineProperty/15.2.3.6-4-266.js   |  6 ++++--
 .../Object/defineProperty/15.2.3.6-4-267.js   |  7 ++++---
 .../Object/defineProperty/15.2.3.6-4-268.js   |  7 ++++---
 .../Object/defineProperty/15.2.3.6-4-269.js   |  6 ++++--
 .../Object/defineProperty/15.2.3.6-4-270.js   |  7 ++++---
 .../Object/defineProperty/15.2.3.6-4-271.js   |  7 ++++---
 .../Object/defineProperty/15.2.3.6-4-272.js   |  7 ++++---
 .../Object/defineProperty/15.2.3.6-4-273.js   |  7 ++++---
 .../Object/defineProperty/15.2.3.6-4-277.js   | 13 ++++++------
 .../Object/defineProperty/15.2.3.6-4-278.js   |  7 ++++---
 .../Object/defineProperty/15.2.3.6-4-279.js   |  7 ++++---
 .../Object/defineProperty/15.2.3.6-4-280.js   | 13 ++++++------
 .../Object/defineProperty/15.2.3.6-4-281.js   | 16 +++++++--------
 .../Object/defineProperty/15.2.3.6-4-282.js   | 16 +++++++--------
 .../Object/defineProperty/15.2.3.6-4-283.js   | 16 +++++++--------
 .../Object/defineProperty/15.2.3.6-4-284.js   | 16 +++++++--------
 .../Object/defineProperty/15.2.3.6-4-285.js   | 10 +++++-----
 .../Object/defineProperty/15.2.3.6-4-286.js   | 10 +++++-----
 .../Object/defineProperty/15.2.3.6-4-287.js   | 10 +++++-----
 .../Object/defineProperty/15.2.3.6-4-288.js   | 10 +++++-----
 .../Object/defineProperty/15.2.3.6-4-289-1.js | 13 ++++++------
 .../Object/defineProperty/15.2.3.6-4-289.js   | 12 +++++------
 .../Object/defineProperty/15.2.3.6-4-290-1.js |  7 ++++---
 .../Object/defineProperty/15.2.3.6-4-290.js   |  7 ++++---
 .../Object/defineProperty/15.2.3.6-4-291-1.js |  7 ++++---
 .../Object/defineProperty/15.2.3.6-4-291.js   |  7 ++++---
 .../Object/defineProperty/15.2.3.6-4-292-1.js | 13 ++++++------
 .../Object/defineProperty/15.2.3.6-4-292-2.js | 13 ++++++------
 .../Object/defineProperty/15.2.3.6-4-292.js   | 12 +++++------
 .../Object/defineProperty/15.2.3.6-4-293-1.js | 12 +++++------
 .../Object/defineProperty/15.2.3.6-4-293-2.js | 17 +++++++---------
 .../Object/defineProperty/15.2.3.6-4-293-3.js | 13 ++++++------
 .../Object/defineProperty/15.2.3.6-4-293-4.js | 13 ++++++------
 .../Object/defineProperty/15.2.3.6-4-293.js   | 16 +++++++--------
 .../Object/defineProperty/15.2.3.6-4-294-1.js | 15 ++++++--------
 .../Object/defineProperty/15.2.3.6-4-294.js   | 16 +++++++--------
 .../Object/defineProperty/15.2.3.6-4-295-1.js | 15 +++++++-------
 .../Object/defineProperty/15.2.3.6-4-295.js   | 16 +++++++--------
 .../Object/defineProperty/15.2.3.6-4-296-1.js | 15 +++++++-------
 .../Object/defineProperty/15.2.3.6-4-296.js   | 16 +++++++--------
 .../Object/defineProperty/15.2.3.6-4-297-1.js | 10 +++++-----
 .../Object/defineProperty/15.2.3.6-4-297.js   | 10 +++++-----
 .../Object/defineProperty/15.2.3.6-4-298-1.js | 10 +++++-----
 .../Object/defineProperty/15.2.3.6-4-298.js   | 10 +++++-----
 .../Object/defineProperty/15.2.3.6-4-299-1.js | 10 +++++-----
 .../Object/defineProperty/15.2.3.6-4-299.js   | 10 +++++-----
 .../Object/defineProperty/15.2.3.6-4-300-1.js | 10 +++++-----
 .../Object/defineProperty/15.2.3.6-4-300.js   | 10 +++++-----
 .../Object/defineProperty/15.2.3.6-4-301-1.js | 12 +++++------
 .../Object/defineProperty/15.2.3.6-4-301.js   | 12 +++++------
 .../Object/defineProperty/15.2.3.6-4-302-1.js |  7 ++++---
 .../Object/defineProperty/15.2.3.6-4-302.js   |  7 ++++---
 .../Object/defineProperty/15.2.3.6-4-303.js   |  7 ++++---
 .../Object/defineProperty/15.2.3.6-4-304.js   | 12 +++++------
 .../Object/defineProperty/15.2.3.6-4-305.js   | 16 +++++++--------
 .../Object/defineProperty/15.2.3.6-4-306.js   | 16 +++++++--------
 .../Object/defineProperty/15.2.3.6-4-307.js   | 16 +++++++--------
 .../Object/defineProperty/15.2.3.6-4-308.js   | 16 +++++++--------
 .../Object/defineProperty/15.2.3.6-4-309.js   | 10 +++++-----
 .../Object/defineProperty/15.2.3.6-4-310.js   | 10 +++++-----
 .../Object/defineProperty/15.2.3.6-4-311.js   | 10 +++++-----
 .../Object/defineProperty/15.2.3.6-4-312.js   | 10 +++++-----
 .../Object/defineProperty/15.2.3.6-4-313-1.js | 12 +++++------
 .../Object/defineProperty/15.2.3.6-4-313.js   | 12 +++++------
 .../Object/defineProperty/15.2.3.6-4-314-1.js |  7 ++++---
 .../Object/defineProperty/15.2.3.6-4-314.js   |  7 ++++---
 .../Object/defineProperty/15.2.3.6-4-315-1.js |  7 ++++---
 .../Object/defineProperty/15.2.3.6-4-315.js   |  7 ++++---
 .../Object/defineProperty/15.2.3.6-4-316-1.js | 12 +++++------
 .../Object/defineProperty/15.2.3.6-4-316.js   | 12 +++++------
 .../Object/defineProperty/15.2.3.6-4-317-1.js | 16 +++++++--------
 .../Object/defineProperty/15.2.3.6-4-317.js   | 16 +++++++--------
 .../Object/defineProperty/15.2.3.6-4-318-1.js | 16 +++++++--------
 .../Object/defineProperty/15.2.3.6-4-318.js   | 16 ++++++---------
 .../Object/defineProperty/15.2.3.6-4-319-1.js | 17 +++++++---------
 .../Object/defineProperty/15.2.3.6-4-319.js   | 16 +++++++--------
 .../Object/defineProperty/15.2.3.6-4-320-1.js | 16 +++++++--------
 .../Object/defineProperty/15.2.3.6-4-320.js   | 16 ++++++---------
 .../Object/defineProperty/15.2.3.6-4-321-1.js | 10 +++++-----
 .../Object/defineProperty/15.2.3.6-4-321.js   | 10 +++++-----
 .../Object/defineProperty/15.2.3.6-4-322-1.js | 10 +++++-----
 .../Object/defineProperty/15.2.3.6-4-322.js   | 10 +++++-----
 .../Object/defineProperty/15.2.3.6-4-323-1.js |  9 ++++-----
 .../Object/defineProperty/15.2.3.6-4-323.js   | 10 +++++-----
 .../Object/defineProperty/15.2.3.6-4-324-1.js | 10 +++++-----
 .../Object/defineProperty/15.2.3.6-4-324.js   | 11 +++++-----
 .../Object/defineProperty/15.2.3.6-4-333-1.js | 13 ++++++------
 .../Object/defineProperty/15.2.3.6-4-333-2.js | 13 ++++++------
 .../Object/defineProperty/15.2.3.6-4-333-3.js | 13 ++++++------
 .../Object/defineProperty/15.2.3.6-4-333-6.js | 13 ++++++------
 .../Object/defineProperty/15.2.3.6-4-333-7.js | 13 ++++++------
 .../Object/defineProperty/15.2.3.6-4-333-8.js | 13 ++++++------
 .../Object/defineProperty/15.2.3.6-4-335.js   |  7 ++++---
 .../Object/defineProperty/15.2.3.6-4-349.js   |  7 ++++---
 .../Object/defineProperty/15.2.3.6-4-354-1.js | 13 ++++++------
 .../defineProperty/15.2.3.6-4-354-10.js       | 13 ++++++------
 .../defineProperty/15.2.3.6-4-354-11.js       | 13 ++++++------
 .../defineProperty/15.2.3.6-4-354-12.js       | 13 ++++++------
 .../defineProperty/15.2.3.6-4-354-15.js       |  6 ++++--
 .../defineProperty/15.2.3.6-4-354-16.js       |  6 ++++--
 .../Object/defineProperty/15.2.3.6-4-354-2.js | 13 ++++++------
 .../Object/defineProperty/15.2.3.6-4-354-3.js | 13 ++++++------
 .../Object/defineProperty/15.2.3.6-4-354-6.js |  6 ++++--
 .../Object/defineProperty/15.2.3.6-4-354-7.js |  6 ++++--
 .../Object/defineProperty/15.2.3.6-4-354.js   |  6 ++++--
 .../Object/defineProperty/15.2.3.6-4-361.js   |  6 ++++--
 .../Object/defineProperty/15.2.3.6-4-363.js   |  5 +++--
 .../Object/defineProperty/15.2.3.6-4-368.js   |  6 ++++--
 .../Object/defineProperty/15.2.3.6-4-375.js   |  6 ++++--
 .../Object/defineProperty/15.2.3.6-4-377.js   |  5 +++--
 .../Object/defineProperty/15.2.3.6-4-38.js    | 13 ++++++------
 .../Object/defineProperty/15.2.3.6-4-41.js    | 13 ++++++------
 .../Object/defineProperty/15.2.3.6-4-429.js   |  8 ++++----
 .../Object/defineProperty/15.2.3.6-4-434.js   | 10 +++-------
 .../Object/defineProperty/15.2.3.6-4-438.js   | 11 ++++------
 .../Object/defineProperty/15.2.3.6-4-447.js   |  8 +++-----
 .../Object/defineProperty/15.2.3.6-4-45.js    | 13 ++++++------
 .../Object/defineProperty/15.2.3.6-4-452.js   | 10 +++-------
 .../Object/defineProperty/15.2.3.6-4-456.js   | 11 ++++------
 .../Object/defineProperty/15.2.3.6-4-465.js   |  8 +++-----
 .../Object/defineProperty/15.2.3.6-4-47.js    | 13 ++++++------
 .../Object/defineProperty/15.2.3.6-4-470.js   |  9 +++------
 .../Object/defineProperty/15.2.3.6-4-474.js   | 11 ++++------
 .../Object/defineProperty/15.2.3.6-4-48.js    | 13 ++++++------
 .../Object/defineProperty/15.2.3.6-4-483.js   |  9 +++------
 .../Object/defineProperty/15.2.3.6-4-488.js   | 11 +++-------
 .../Object/defineProperty/15.2.3.6-4-49.js    | 12 +++++------
 .../Object/defineProperty/15.2.3.6-4-492.js   | 11 ++++------
 .../Object/defineProperty/15.2.3.6-4-50.js    | 12 +++++------
 .../Object/defineProperty/15.2.3.6-4-501.js   |  8 +++-----
 .../Object/defineProperty/15.2.3.6-4-506.js   | 12 +++--------
 .../Object/defineProperty/15.2.3.6-4-51.js    | 13 ++++++------
 .../Object/defineProperty/15.2.3.6-4-510.js   | 11 ++++------
 .../Object/defineProperty/15.2.3.6-4-519.js   |  9 +++------
 .../Object/defineProperty/15.2.3.6-4-52.js    | 13 ++++++------
 .../Object/defineProperty/15.2.3.6-4-524.js   | 11 +++-------
 .../Object/defineProperty/15.2.3.6-4-528.js   | 11 ++++------
 .../Object/defineProperty/15.2.3.6-4-53.js    |  7 ++++---
 .../Object/defineProperty/15.2.3.6-4-531-1.js |  7 ++++---
 .../defineProperty/15.2.3.6-4-531-10.js       |  7 ++++---
 .../defineProperty/15.2.3.6-4-531-11.js       |  7 ++++---
 .../defineProperty/15.2.3.6-4-531-12.js       |  7 ++++---
 .../Object/defineProperty/15.2.3.6-4-531-2.js |  7 ++++---
 .../Object/defineProperty/15.2.3.6-4-531-3.js |  7 ++++---
 .../Object/defineProperty/15.2.3.6-4-537.js   |  8 ++++----
 .../Object/defineProperty/15.2.3.6-4-538-1.js |  7 ++++---
 .../Object/defineProperty/15.2.3.6-4-538-2.js |  7 ++++---
 .../Object/defineProperty/15.2.3.6-4-538-5.js |  7 ++++---
 .../Object/defineProperty/15.2.3.6-4-538-6.js |  7 ++++---
 .../Object/defineProperty/15.2.3.6-4-538.js   |  7 ++++---
 .../Object/defineProperty/15.2.3.6-4-54.js    |  6 ++++--
 .../Object/defineProperty/15.2.3.6-4-540-1.js | 19 +++++++++---------
 .../Object/defineProperty/15.2.3.6-4-540-2.js | 19 +++++++++---------
 .../Object/defineProperty/15.2.3.6-4-540-3.js | 19 +++++++++---------
 .../Object/defineProperty/15.2.3.6-4-540-6.js | 20 +++++++++----------
 .../Object/defineProperty/15.2.3.6-4-540-7.js | 20 +++++++++----------
 .../Object/defineProperty/15.2.3.6-4-540-8.js | 19 +++++++++---------
 .../Object/defineProperty/15.2.3.6-4-542.js   |  5 +++--
 .../Object/defineProperty/15.2.3.6-4-546.js   | 11 +++++-----
 .../Object/defineProperty/15.2.3.6-4-547-1.js | 11 +++++-----
 .../Object/defineProperty/15.2.3.6-4-547-2.js | 11 +++++-----
 .../Object/defineProperty/15.2.3.6-4-547-3.js |  9 +++++----
 .../Object/defineProperty/15.2.3.6-4-547-4.js | 11 +++++-----
 .../Object/defineProperty/15.2.3.6-4-55.js    |  7 ++++---
 .../Object/defineProperty/15.2.3.6-4-555.js   |  4 +++-
 .../Object/defineProperty/15.2.3.6-4-56.js    |  7 ++++---
 .../Object/defineProperty/15.2.3.6-4-560.js   |  5 +++--
 .../Object/defineProperty/15.2.3.6-4-564.js   |  7 ++++---
 .../Object/defineProperty/15.2.3.6-4-57.js    |  7 ++++---
 .../Object/defineProperty/15.2.3.6-4-58.js    | 12 +++++------
 .../Object/defineProperty/15.2.3.6-4-59.js    |  7 ++++---
 .../Object/defineProperty/15.2.3.6-4-60.js    | 12 +++++------
 .../Object/defineProperty/15.2.3.6-4-61.js    | 12 +++++------
 .../Object/defineProperty/15.2.3.6-4-62.js    | 12 +++++------
 .../Object/defineProperty/15.2.3.6-4-63.js    | 13 ++++++------
 .../Object/defineProperty/15.2.3.6-4-64.js    | 16 +++++++--------
 .../Object/defineProperty/15.2.3.6-4-65.js    | 16 +++++++--------
 .../Object/defineProperty/15.2.3.6-4-66.js    | 12 +++++------
 .../Object/defineProperty/15.2.3.6-4-67.js    | 12 +++++------
 .../Object/defineProperty/15.2.3.6-4-68.js    | 12 +++++------
 .../Object/defineProperty/15.2.3.6-4-69.js    | 12 +++++------
 .../Object/defineProperty/15.2.3.6-4-70.js    | 12 +++++------
 .../Object/defineProperty/15.2.3.6-4-71.js    | 12 +++++------
 .../Object/defineProperty/15.2.3.6-4-72.js    | 12 +++++------
 .../Object/defineProperty/15.2.3.6-4-73.js    | 12 +++++------
 .../Object/defineProperty/15.2.3.6-4-74.js    | 12 +++++------
 .../Object/defineProperty/15.2.3.6-4-75.js    |  7 ++++---
 .../Object/defineProperty/15.2.3.6-4-76.js    |  7 ++++---
 .../Object/defineProperty/15.2.3.6-4-77.js    |  7 ++++---
 .../Object/defineProperty/15.2.3.6-4-78.js    |  7 ++++---
 .../Object/defineProperty/15.2.3.6-4-79.js    | 12 +++++------
 .../Object/defineProperty/15.2.3.6-4-80.js    | 12 +++++------
 .../Object/defineProperty/15.2.3.6-4-81.js    | 12 +++++------
 .../Object/defineProperty/15.2.3.6-4-82-1.js  | 13 ++++++------
 .../Object/defineProperty/15.2.3.6-4-82-10.js |  7 ++++---
 .../Object/defineProperty/15.2.3.6-4-82-11.js |  7 ++++---
 .../Object/defineProperty/15.2.3.6-4-82-12.js |  7 ++++---
 .../Object/defineProperty/15.2.3.6-4-82-13.js | 13 ++++++------
 .../Object/defineProperty/15.2.3.6-4-82-14.js | 13 ++++++------
 .../Object/defineProperty/15.2.3.6-4-82-15.js | 13 ++++++------
 .../Object/defineProperty/15.2.3.6-4-82-16.js | 13 ++++++------
 .../Object/defineProperty/15.2.3.6-4-82-17.js | 13 ++++++------
 .../Object/defineProperty/15.2.3.6-4-82-18.js | 13 ++++++------
 .../Object/defineProperty/15.2.3.6-4-82-19.js |  7 ++++---
 .../Object/defineProperty/15.2.3.6-4-82-2.js  | 13 ++++++------
 .../Object/defineProperty/15.2.3.6-4-82-20.js |  7 ++++---
 .../Object/defineProperty/15.2.3.6-4-82-21.js |  7 ++++---
 .../Object/defineProperty/15.2.3.6-4-82-22.js |  7 ++++---
 .../Object/defineProperty/15.2.3.6-4-82-23.js |  7 ++++---
 .../Object/defineProperty/15.2.3.6-4-82-24.js |  7 ++++---
 .../Object/defineProperty/15.2.3.6-4-82-3.js  | 13 ++++++------
 .../Object/defineProperty/15.2.3.6-4-82-4.js  | 13 ++++++------
 .../Object/defineProperty/15.2.3.6-4-82-5.js  | 13 ++++++------
 .../Object/defineProperty/15.2.3.6-4-82-6.js  | 13 ++++++------
 .../Object/defineProperty/15.2.3.6-4-82-7.js  |  7 ++++---
 .../Object/defineProperty/15.2.3.6-4-82-8.js  |  7 ++++---
 .../Object/defineProperty/15.2.3.6-4-82-9.js  |  7 ++++---
 .../Object/defineProperty/15.2.3.6-4-82.js    | 12 +++++------
 .../Object/defineProperty/15.2.3.6-4-83.js    | 12 +++++------
 .../Object/defineProperty/15.2.3.6-4-84.js    | 12 +++++------
 .../Object/defineProperty/15.2.3.6-4-85.js    | 13 ++++++------
 .../Object/defineProperty/15.2.3.6-4-86.js    | 16 +++++++--------
 .../Object/defineProperty/15.2.3.6-4-87.js    | 16 +++++++--------
 .../Object/defineProperty/15.2.3.6-4-88.js    | 12 +++++------
 .../Object/defineProperty/15.2.3.6-4-89.js    | 16 +++++++--------
 .../Object/defineProperty/15.2.3.6-4-90.js    | 12 +++++------
 .../Object/defineProperty/15.2.3.6-4-91.js    | 16 +++++++--------
 .../Object/defineProperty/15.2.3.6-4-92.js    | 12 +++++------
 .../Object/defineProperty/15.2.3.6-4-93.js    | 16 +++++++--------
 .../Object/defineProperty/15.2.3.6-4-94.js    | 12 +++++------
 .../Object/defineProperty/15.2.3.6-4-95.js    | 16 +++++++--------
 .../Object/defineProperty/15.2.3.6-4-96.js    |  7 ++++---
 .../Object/defineProperty/15.2.3.6-4-97.js    | 10 +++++-----
 .../Object/defineProperty/15.2.3.6-4-98.js    |  7 ++++---
 .../Object/defineProperty/15.2.3.6-4-99.js    | 10 +++++-----
 test/built-ins/Object/defineProperty/name.js  | 11 +++++-----
 356 files changed, 1838 insertions(+), 1907 deletions(-)

diff --git a/test/built-ins/Object/defineProperty/15.2.3.6-3-100.js b/test/built-ins/Object/defineProperty/15.2.3.6-3-100.js
index 5c49f9552c..86853af05e 100644
--- a/test/built-ins/Object/defineProperty/15.2.3.6-3-100.js
+++ b/test/built-ins/Object/defineProperty/15.2.3.6-3-100.js
@@ -15,5 +15,6 @@ Object.defineProperty(obj, "property", {
   configurable: null
 });
 
-assert(obj.hasOwnProperty("property"));
-verifyNotConfigurable(obj, "property");
+verifyProperty(obj, "property", {
+  configurable: false,
+});
diff --git a/test/built-ins/Object/defineProperty/15.2.3.6-3-102.js b/test/built-ins/Object/defineProperty/15.2.3.6-3-102.js
index f28ee33667..ceeb95835d 100644
--- a/test/built-ins/Object/defineProperty/15.2.3.6-3-102.js
+++ b/test/built-ins/Object/defineProperty/15.2.3.6-3-102.js
@@ -15,5 +15,6 @@ Object.defineProperty(obj, "property", {
   configurable: false
 });
 
-assert(obj.hasOwnProperty("property"));
-verifyNotConfigurable(obj, "property");
+verifyProperty(obj, "property", {
+  configurable: false,
+});
diff --git a/test/built-ins/Object/defineProperty/15.2.3.6-3-103.js b/test/built-ins/Object/defineProperty/15.2.3.6-3-103.js
index 442ccffbe8..c3d4e5de11 100644
--- a/test/built-ins/Object/defineProperty/15.2.3.6-3-103.js
+++ b/test/built-ins/Object/defineProperty/15.2.3.6-3-103.js
@@ -15,5 +15,6 @@ Object.defineProperty(obj, "property", {
   configurable: 0
 });
 
-assert(obj.hasOwnProperty("property"));
-verifyNotConfigurable(obj, "property");
+verifyProperty(obj, "property", {
+  configurable: false,
+});
diff --git a/test/built-ins/Object/defineProperty/15.2.3.6-3-104.js b/test/built-ins/Object/defineProperty/15.2.3.6-3-104.js
index 0de5f8d982..5c188d321f 100644
--- a/test/built-ins/Object/defineProperty/15.2.3.6-3-104.js
+++ b/test/built-ins/Object/defineProperty/15.2.3.6-3-104.js
@@ -15,5 +15,6 @@ Object.defineProperty(obj, "property", {
   configurable: +0
 });
 
-assert(obj.hasOwnProperty("property"));
-verifyNotConfigurable(obj, "property");
+verifyProperty(obj, "property", {
+  configurable: false,
+});
diff --git a/test/built-ins/Object/defineProperty/15.2.3.6-3-105.js b/test/built-ins/Object/defineProperty/15.2.3.6-3-105.js
index c899a8e444..f322077895 100644
--- a/test/built-ins/Object/defineProperty/15.2.3.6-3-105.js
+++ b/test/built-ins/Object/defineProperty/15.2.3.6-3-105.js
@@ -15,5 +15,6 @@ Object.defineProperty(obj, "property", {
   configurable: -0
 });
 
-assert(obj.hasOwnProperty("property"));
-verifyNotConfigurable(obj, "property");
+verifyProperty(obj, "property", {
+  configurable: false,
+});
diff --git a/test/built-ins/Object/defineProperty/15.2.3.6-3-106.js b/test/built-ins/Object/defineProperty/15.2.3.6-3-106.js
index 4a6edd949a..f1b3625021 100644
--- a/test/built-ins/Object/defineProperty/15.2.3.6-3-106.js
+++ b/test/built-ins/Object/defineProperty/15.2.3.6-3-106.js
@@ -15,5 +15,6 @@ Object.defineProperty(obj, "property", {
   configurable: NaN
 });
 
-assert(obj.hasOwnProperty("property"));
-verifyNotConfigurable(obj, "property");
+verifyProperty(obj, "property", {
+  configurable: false,
+});
diff --git a/test/built-ins/Object/defineProperty/15.2.3.6-3-109.js b/test/built-ins/Object/defineProperty/15.2.3.6-3-109.js
index 26f6c40599..620ac59de4 100644
--- a/test/built-ins/Object/defineProperty/15.2.3.6-3-109.js
+++ b/test/built-ins/Object/defineProperty/15.2.3.6-3-109.js
@@ -15,5 +15,6 @@ Object.defineProperty(obj, "property", {
   configurable: ""
 });
 
-assert(obj.hasOwnProperty("property"));
-verifyNotConfigurable(obj, "property");
+verifyProperty(obj, "property", {
+  configurable: false,
+});
diff --git a/test/built-ins/Object/defineProperty/15.2.3.6-3-152.js b/test/built-ins/Object/defineProperty/15.2.3.6-3-152.js
index d355d3c45d..1b1f411f95 100644
--- a/test/built-ins/Object/defineProperty/15.2.3.6-3-152.js
+++ b/test/built-ins/Object/defineProperty/15.2.3.6-3-152.js
@@ -17,6 +17,7 @@ var attr = {
 
 Object.defineProperty(obj, "property", attr);
 
-assert(obj.hasOwnProperty("property"));
-verifyNotWritable(obj, "property");
-verifyNotConfigurable(obj, "property");
+verifyProperty(obj, "property", {
+  writable: false,
+  configurable: false,
+});
diff --git a/test/built-ins/Object/defineProperty/15.2.3.6-3-153.js b/test/built-ins/Object/defineProperty/15.2.3.6-3-153.js
index 15eeb6e1cf..c928091c31 100644
--- a/test/built-ins/Object/defineProperty/15.2.3.6-3-153.js
+++ b/test/built-ins/Object/defineProperty/15.2.3.6-3-153.js
@@ -17,5 +17,6 @@ var attr = {
 
 Object.defineProperty(obj, "property", attr);
 
-assert(obj.hasOwnProperty("property"));
-verifyNotWritable(obj, "property");
+verifyProperty(obj, "property", {
+  writable: false,
+});
diff --git a/test/built-ins/Object/defineProperty/15.2.3.6-3-162.js b/test/built-ins/Object/defineProperty/15.2.3.6-3-162.js
index e5081410b6..4c627489dc 100644
--- a/test/built-ins/Object/defineProperty/15.2.3.6-3-162.js
+++ b/test/built-ins/Object/defineProperty/15.2.3.6-3-162.js
@@ -18,5 +18,6 @@ Object.defineProperty(attr, "writable", {
 
 Object.defineProperty(obj, "property", attr);
 
-assert(obj.hasOwnProperty("property"));
-verifyNotWritable(obj, "property");
+verifyProperty(obj, "property", {
+  writable: false,
+});
diff --git a/test/built-ins/Object/defineProperty/15.2.3.6-3-163.js b/test/built-ins/Object/defineProperty/15.2.3.6-3-163.js
index 3615ce5c6f..2d9862aaf1 100644
--- a/test/built-ins/Object/defineProperty/15.2.3.6-3-163.js
+++ b/test/built-ins/Object/defineProperty/15.2.3.6-3-163.js
@@ -29,5 +29,6 @@ Object.defineProperty(child, "writable", {
 
 Object.defineProperty(obj, "property", child);
 
-assert(obj.hasOwnProperty("property"));
-verifyNotWritable(obj, "property");
+verifyProperty(obj, "property", {
+  writable: false,
+});
diff --git a/test/built-ins/Object/defineProperty/15.2.3.6-3-164.js b/test/built-ins/Object/defineProperty/15.2.3.6-3-164.js
index baaa4a1a38..329f7e7a76 100644
--- a/test/built-ins/Object/defineProperty/15.2.3.6-3-164.js
+++ b/test/built-ins/Object/defineProperty/15.2.3.6-3-164.js
@@ -24,5 +24,6 @@ var child = new ConstructFun();
 
 Object.defineProperty(obj, "property", child);
 
-assert(obj.hasOwnProperty("property"));
-verifyNotWritable(obj, "property");
+verifyProperty(obj, "property", {
+  writable: false,
+});
diff --git a/test/built-ins/Object/defineProperty/15.2.3.6-3-171-1.js b/test/built-ins/Object/defineProperty/15.2.3.6-3-171-1.js
index b5941c8bf5..6fa213d54d 100644
--- a/test/built-ins/Object/defineProperty/15.2.3.6-3-171-1.js
+++ b/test/built-ins/Object/defineProperty/15.2.3.6-3-171-1.js
@@ -17,8 +17,10 @@ try {
   var dateObj = new Date();
 
   Object.defineProperty(obj, "property", dateObj);
-  verifyWritable(obj, "property");
 
+  verifyProperty(obj, "property", {
+    writable: true,
+  });
 } finally {
   delete Date.prototype.writable;
 }
diff --git a/test/built-ins/Object/defineProperty/15.2.3.6-3-178.js b/test/built-ins/Object/defineProperty/15.2.3.6-3-178.js
index 354b342f1d..9f7a3001a1 100644
--- a/test/built-ins/Object/defineProperty/15.2.3.6-3-178.js
+++ b/test/built-ins/Object/defineProperty/15.2.3.6-3-178.js
@@ -15,5 +15,6 @@ Object.defineProperty(obj, "property", {
   writable: undefined
 });
 
-assert(obj.hasOwnProperty("property"));
-verifyNotWritable(obj, "property");
+verifyProperty(obj, "property", {
+  writable: false,
+});
diff --git a/test/built-ins/Object/defineProperty/15.2.3.6-3-179.js b/test/built-ins/Object/defineProperty/15.2.3.6-3-179.js
index 88c9e3f0db..8ce66de075 100644
--- a/test/built-ins/Object/defineProperty/15.2.3.6-3-179.js
+++ b/test/built-ins/Object/defineProperty/15.2.3.6-3-179.js
@@ -15,5 +15,6 @@ Object.defineProperty(obj, "property", {
   writable: null
 });
 
-assert(obj.hasOwnProperty("property"));
-verifyNotWritable(obj, "property");
+verifyProperty(obj, "property", {
+  writable: false,
+});
diff --git a/test/built-ins/Object/defineProperty/15.2.3.6-3-181.js b/test/built-ins/Object/defineProperty/15.2.3.6-3-181.js
index 7b40135c27..e8256ca8ad 100644
--- a/test/built-ins/Object/defineProperty/15.2.3.6-3-181.js
+++ b/test/built-ins/Object/defineProperty/15.2.3.6-3-181.js
@@ -15,5 +15,6 @@ Object.defineProperty(obj, "property", {
   writable: false
 });
 
-assert(obj.hasOwnProperty("property"));
-verifyNotWritable(obj, "property");
+verifyProperty(obj, "property", {
+  writable: false,
+});
diff --git a/test/built-ins/Object/defineProperty/15.2.3.6-3-182.js b/test/built-ins/Object/defineProperty/15.2.3.6-3-182.js
index 2d818dba21..15cae21ce3 100644
--- a/test/built-ins/Object/defineProperty/15.2.3.6-3-182.js
+++ b/test/built-ins/Object/defineProperty/15.2.3.6-3-182.js
@@ -15,5 +15,6 @@ Object.defineProperty(obj, "property", {
   writable: 0
 });
 
-assert(obj.hasOwnProperty("property"));
-verifyNotWritable(obj, "property");
+verifyProperty(obj, "property", {
+  writable: false,
+});
diff --git a/test/built-ins/Object/defineProperty/15.2.3.6-3-183.js b/test/built-ins/Object/defineProperty/15.2.3.6-3-183.js
index 9b20abc03f..27709f8d8e 100644
--- a/test/built-ins/Object/defineProperty/15.2.3.6-3-183.js
+++ b/test/built-ins/Object/defineProperty/15.2.3.6-3-183.js
@@ -15,5 +15,6 @@ Object.defineProperty(obj, "property", {
   writable: +0
 });
 
-assert(obj.hasOwnProperty("property"));
-verifyNotWritable(obj, "property");
+verifyProperty(obj, "property", {
+  writable: false,
+});
diff --git a/test/built-ins/Object/defineProperty/15.2.3.6-3-184.js b/test/built-ins/Object/defineProperty/15.2.3.6-3-184.js
index d788c3d238..fbce1bbdc5 100644
--- a/test/built-ins/Object/defineProperty/15.2.3.6-3-184.js
+++ b/test/built-ins/Object/defineProperty/15.2.3.6-3-184.js
@@ -15,5 +15,6 @@ Object.defineProperty(obj, "property", {
   writable: -0
 });
 
-assert(obj.hasOwnProperty("property"));
-verifyNotWritable(obj, "property");
+verifyProperty(obj, "property", {
+  writable: false,
+});
diff --git a/test/built-ins/Object/defineProperty/15.2.3.6-3-185.js b/test/built-ins/Object/defineProperty/15.2.3.6-3-185.js
index 883316e494..85f8119902 100644
--- a/test/built-ins/Object/defineProperty/15.2.3.6-3-185.js
+++ b/test/built-ins/Object/defineProperty/15.2.3.6-3-185.js
@@ -15,8 +15,7 @@ Object.defineProperty(obj, "property", {
   writable: NaN
 });
 
-assert(obj.hasOwnProperty("property"));
-
-verifyNotWritable(obj, "property");
-
-assert.sameValue(typeof(obj.property), "undefined");
+verifyProperty(obj, "property", {
+  value: undefined,
+  writable: false,
+});
diff --git a/test/built-ins/Object/defineProperty/15.2.3.6-3-188.js b/test/built-ins/Object/defineProperty/15.2.3.6-3-188.js
index e23005612c..1f88f3d170 100644
--- a/test/built-ins/Object/defineProperty/15.2.3.6-3-188.js
+++ b/test/built-ins/Object/defineProperty/15.2.3.6-3-188.js
@@ -15,5 +15,6 @@ Object.defineProperty(obj, "property", {
   writable: ""
 });
 
-assert(obj.hasOwnProperty("property"));
-verifyNotWritable(obj, "property");
+verifyProperty(obj, "property", {
+  writable: false,
+});
diff --git a/test/built-ins/Object/defineProperty/15.2.3.6-3-73.js b/test/built-ins/Object/defineProperty/15.2.3.6-3-73.js
index cc482c6c89..af06de0be8 100644
--- a/test/built-ins/Object/defineProperty/15.2.3.6-3-73.js
+++ b/test/built-ins/Object/defineProperty/15.2.3.6-3-73.js
@@ -15,5 +15,6 @@ Object.defineProperty(obj, "property", {
   configurable: false
 });
 
-assert(obj.hasOwnProperty("property"));
-verifyNotConfigurable(obj, "property");
+verifyProperty(obj, "property", {
+  configurable: false,
+});
diff --git a/test/built-ins/Object/defineProperty/15.2.3.6-3-74.js b/test/built-ins/Object/defineProperty/15.2.3.6-3-74.js
index d5c2b4ba9e..ece0ca9efe 100644
--- a/test/built-ins/Object/defineProperty/15.2.3.6-3-74.js
+++ b/test/built-ins/Object/defineProperty/15.2.3.6-3-74.js
@@ -15,5 +15,6 @@ Object.defineProperty(obj, "property", {
   value: 100
 });
 
-assert(obj.hasOwnProperty("property"));
-verifyNotConfigurable(obj, "property");
+verifyProperty(obj, "property", {
+  configurable: false,
+});
diff --git a/test/built-ins/Object/defineProperty/15.2.3.6-3-76.js b/test/built-ins/Object/defineProperty/15.2.3.6-3-76.js
index 649f877b30..bc9af3b94c 100644
--- a/test/built-ins/Object/defineProperty/15.2.3.6-3-76.js
+++ b/test/built-ins/Object/defineProperty/15.2.3.6-3-76.js
@@ -22,10 +22,7 @@ var child = new ConstructFun();
 
 Object.defineProperty(obj, "property", child);
 
-assert(obj.hasOwnProperty("property"));
-
-verifyNotConfigurable(obj, "property");
-
-assert(obj.hasOwnProperty("property"));
-
-assert.sameValue(typeof(obj.property), "undefined");
+verifyProperty(obj, "property", {
+  value: undefined,
+  configurable: false,
+});
diff --git a/test/built-ins/Object/defineProperty/15.2.3.6-3-83.js b/test/built-ins/Object/defineProperty/15.2.3.6-3-83.js
index b39b5cf911..c7b9c84fdc 100644
--- a/test/built-ins/Object/defineProperty/15.2.3.6-3-83.js
+++ b/test/built-ins/Object/defineProperty/15.2.3.6-3-83.js
@@ -18,5 +18,6 @@ Object.defineProperty(attr, "configurable", {
 
 Object.defineProperty(obj, "property", attr);
 
-assert(obj.hasOwnProperty("property"));
-verifyNotConfigurable(obj, "property");
+verifyProperty(obj, "property", {
+  configurable: false,
+});
diff --git a/test/built-ins/Object/defineProperty/15.2.3.6-3-84.js b/test/built-ins/Object/defineProperty/15.2.3.6-3-84.js
index 73297b3727..bf48b79cd7 100644
--- a/test/built-ins/Object/defineProperty/15.2.3.6-3-84.js
+++ b/test/built-ins/Object/defineProperty/15.2.3.6-3-84.js
@@ -29,5 +29,6 @@ Object.defineProperty(child, "configurable", {
 
 Object.defineProperty(obj, "property", child);
 
-assert(obj.hasOwnProperty("property"));
-verifyNotConfigurable(obj, "property");
+verifyProperty(obj, "property", {
+  configurable: false,
+});
diff --git a/test/built-ins/Object/defineProperty/15.2.3.6-3-85.js b/test/built-ins/Object/defineProperty/15.2.3.6-3-85.js
index 3d8051dc58..c02ad9a598 100644
--- a/test/built-ins/Object/defineProperty/15.2.3.6-3-85.js
+++ b/test/built-ins/Object/defineProperty/15.2.3.6-3-85.js
@@ -24,9 +24,8 @@ var child = new ConstructFun();
 
 Object.defineProperty(obj, "property", child);
 
-assert(obj.hasOwnProperty("property"));
+verifyProperty(obj, "property", {
+  configurable: false,
+});
 
-verifyNotConfigurable(obj, "property");
-
-assert(obj.hasOwnProperty("property"));
 assert.sameValue(typeof(obj.property), "undefined");
diff --git a/test/built-ins/Object/defineProperty/15.2.3.6-3-99.js b/test/built-ins/Object/defineProperty/15.2.3.6-3-99.js
index b809de3238..39489f718f 100644
--- a/test/built-ins/Object/defineProperty/15.2.3.6-3-99.js
+++ b/test/built-ins/Object/defineProperty/15.2.3.6-3-99.js
@@ -15,5 +15,6 @@ Object.defineProperty(obj, "property", {
   configurable: undefined
 });
 
-assert(obj.hasOwnProperty("property"));
-verifyNotConfigurable(obj, "property");
+verifyProperty(obj, "property", {
+  configurable: false,
+});
diff --git a/test/built-ins/Object/defineProperty/15.2.3.6-4-100.js b/test/built-ins/Object/defineProperty/15.2.3.6-4-100.js
index efda2cd61d..b50421ae29 100644
--- a/test/built-ins/Object/defineProperty/15.2.3.6-4-100.js
+++ b/test/built-ins/Object/defineProperty/15.2.3.6-4-100.js
@@ -16,10 +16,10 @@ obj.foo = 100; // default value of attributes: writable: true, configurable: tru
 Object.defineProperty(obj, "foo", {
   value: 200
 });
-verifyEqualTo(obj, "foo", 200);
 
-verifyWritable(obj, "foo");
-
-verifyEnumerable(obj, "foo");
-
-verifyConfigurable(obj, "foo");
+verifyProperty(obj, "foo", {
+  value: 200,
+  writable: true,
+  enumerable: true,
+  configurable: true,
+});
diff --git a/test/built-ins/Object/defineProperty/15.2.3.6-4-101.js b/test/built-ins/Object/defineProperty/15.2.3.6-4-101.js
index bd15bb5668..65c51fb549 100644
--- a/test/built-ins/Object/defineProperty/15.2.3.6-4-101.js
+++ b/test/built-ins/Object/defineProperty/15.2.3.6-4-101.js
@@ -16,10 +16,10 @@ obj.foo = 100; // default value of attributes: writable: true, configurable: tru
 Object.defineProperty(obj, "foo", {
   value: undefined
 });
-verifyEqualTo(obj, "foo", undefined);
 
-verifyWritable(obj, "foo");
-
-verifyEnumerable(obj, "foo");
-
-verifyConfigurable(obj, "foo");
+verifyProperty(obj, "foo", {
+  value: undefined,
+  writable: true,
+  enumerable: true,
+  configurable: true,
+});
diff --git a/test/built-ins/Object/defineProperty/15.2.3.6-4-102.js b/test/built-ins/Object/defineProperty/15.2.3.6-4-102.js
index 5ad0a75c56..4a24ef0829 100644
--- a/test/built-ins/Object/defineProperty/15.2.3.6-4-102.js
+++ b/test/built-ins/Object/defineProperty/15.2.3.6-4-102.js
@@ -16,10 +16,10 @@ obj.foo = undefined; // default value of attributes: writable: true, configurabl
 Object.defineProperty(obj, "foo", {
   value: 100
 });
-verifyEqualTo(obj, "foo", 100);
 
-verifyWritable(obj, "foo");
-
-verifyEnumerable(obj, "foo");
-
-verifyConfigurable(obj, "foo");
+verifyProperty(obj, "foo", {
+  value: 100,
+  writable: true,
+  enumerable: true,
+  configurable: true,
+});
diff --git a/test/built-ins/Object/defineProperty/15.2.3.6-4-103.js b/test/built-ins/Object/defineProperty/15.2.3.6-4-103.js
index 44f7cb2fb8..233f710538 100644
--- a/test/built-ins/Object/defineProperty/15.2.3.6-4-103.js
+++ b/test/built-ins/Object/defineProperty/15.2.3.6-4-103.js
@@ -20,10 +20,10 @@ Object.defineProperty(obj, "foo", {
 Object.defineProperty(obj, "foo", {
   writable: true
 });
-verifyEqualTo(obj, "foo", undefined);
 
-verifyWritable(obj, "foo");
-
-verifyNotEnumerable(obj, "foo");
-
-verifyConfigurable(obj, "foo");
+verifyProperty(obj, "foo", {
+  value: undefined,
+  writable: true,
+  enumerable: false,
+  configurable: true,
+});
diff --git a/test/built-ins/Object/defineProperty/15.2.3.6-4-104.js b/test/built-ins/Object/defineProperty/15.2.3.6-4-104.js
index 1a2b93d2a2..16b97f58c0 100644
--- a/test/built-ins/Object/defineProperty/15.2.3.6-4-104.js
+++ b/test/built-ins/Object/defineProperty/15.2.3.6-4-104.js
@@ -20,10 +20,10 @@ Object.defineProperty(obj, "foo", {
 Object.defineProperty(obj, "foo", {
   enumerable: true
 });
-verifyEqualTo(obj, "foo", undefined);
 
-verifyNotWritable(obj, "foo");
-
-verifyEnumerable(obj, "foo");
-
-verifyConfigurable(obj, "foo");
+verifyProperty(obj, "foo", {
+  value: undefined,
+  writable: false,
+  enumerable: true,
+  configurable: true,
+});
diff --git a/test/built-ins/Object/defineProperty/15.2.3.6-4-105.js b/test/built-ins/Object/defineProperty/15.2.3.6-4-105.js
index 8059ec3653..298ac55d64 100644
--- a/test/built-ins/Object/defineProperty/15.2.3.6-4-105.js
+++ b/test/built-ins/Object/defineProperty/15.2.3.6-4-105.js
@@ -23,10 +23,9 @@ Object.defineProperty(obj, "foo", {
   configurable: false
 });
 
-verifyEqualTo(obj, "foo", 200);
-
-verifyWritable(obj, "foo");
-
-verifyEnumerable(obj, "foo");
-
-verifyNotConfigurable(obj, "foo");
+verifyProperty(obj, "foo", {
+  value: 200,
+  writable: true,
+  enumerable: true,
+  configurable: false,
+});
diff --git a/test/built-ins/Object/defineProperty/15.2.3.6-4-106.js b/test/built-ins/Object/defineProperty/15.2.3.6-4-106.js
index c6a9e58fd5..2d252eb32d 100644
--- a/test/built-ins/Object/defineProperty/15.2.3.6-4-106.js
+++ b/test/built-ins/Object/defineProperty/15.2.3.6-4-106.js
@@ -24,10 +24,10 @@ Object.defineProperty(obj, "foo", {
   writable: false,
   enumerable: false
 });
-verifyEqualTo(obj, "foo", 200);
 
-verifyNotWritable(obj, "foo");
-
-verifyNotEnumerable(obj, "foo");
-
-verifyConfigurable(obj, "foo");
+verifyProperty(obj, "foo", {
+  value: 200,
+  writable: false,
+  enumerable: false,
+  configurable: true,
+});
diff --git a/test/built-ins/Object/defineProperty/15.2.3.6-4-107.js b/test/built-ins/Object/defineProperty/15.2.3.6-4-107.js
index f888deb396..8eb082f9c5 100644
--- a/test/built-ins/Object/defineProperty/15.2.3.6-4-107.js
+++ b/test/built-ins/Object/defineProperty/15.2.3.6-4-107.js
@@ -38,6 +38,7 @@ verifyEqualTo(obj, "foo", getFunc2());
 
 verifyWritable(obj, "foo", "setVerifyHelpProp");
 
-verifyNotEnumerable(obj, "foo");
-
-verifyConfigurable(obj, "foo");
+verifyProperty(obj, "foo", {
+  enumerable: false,
+  configurable: true,
+});
diff --git a/test/built-ins/Object/defineProperty/15.2.3.6-4-108.js b/test/built-ins/Object/defineProperty/15.2.3.6-4-108.js
index 14f5eb8225..344c561bfe 100644
--- a/test/built-ins/Object/defineProperty/15.2.3.6-4-108.js
+++ b/test/built-ins/Object/defineProperty/15.2.3.6-4-108.js
@@ -34,6 +34,7 @@ Object.defineProperty(obj, "foo", {
 });
 verifyWritable(obj, "foo", "setVerifyHelpProp");
 
-verifyEnumerable(obj, "foo");
-
-verifyConfigurable(obj, "foo");
+verifyProperty(obj, "foo", {
+  enumerable: true,
+  configurable: true,
+});
diff --git a/test/built-ins/Object/defineProperty/15.2.3.6-4-109.js b/test/built-ins/Object/defineProperty/15.2.3.6-4-109.js
index 8b7123a390..748e9fc48d 100644
--- a/test/built-ins/Object/defineProperty/15.2.3.6-4-109.js
+++ b/test/built-ins/Object/defineProperty/15.2.3.6-4-109.js
@@ -34,6 +34,7 @@ verifyEqualTo(obj, "foo", getFunc());
 
 verifyWritable(obj, "foo", "setVerifyHelpProp");
 
-verifyEnumerable(obj, "foo");
-
-verifyConfigurable(obj, "foo");
+verifyProperty(obj, "foo", {
+  enumerable: true,
+  configurable: true,
+});
diff --git a/test/built-ins/Object/defineProperty/15.2.3.6-4-110.js b/test/built-ins/Object/defineProperty/15.2.3.6-4-110.js
index 459f7b702f..3b18bc5451 100644
--- a/test/built-ins/Object/defineProperty/15.2.3.6-4-110.js
+++ b/test/built-ins/Object/defineProperty/15.2.3.6-4-110.js
@@ -32,6 +32,7 @@ Object.defineProperty(obj, "foo", {
 });
 verifyWritable(obj, "foo", "setVerifyHelpProp");
 
-verifyEnumerable(obj, "foo");
-
-verifyConfigurable(obj, "foo");
+verifyProperty(obj, "foo", {
+  enumerable: true,
+  configurable: true,
+});
diff --git a/test/built-ins/Object/defineProperty/15.2.3.6-4-112.js b/test/built-ins/Object/defineProperty/15.2.3.6-4-112.js
index 85bde155ac..506d680ba9 100644
--- a/test/built-ins/Object/defineProperty/15.2.3.6-4-112.js
+++ b/test/built-ins/Object/defineProperty/15.2.3.6-4-112.js
@@ -35,6 +35,7 @@ verifyEqualTo(obj, "foo", getFunc());
 
 verifyWritable(obj, "foo", "setVerifyHelpProp");
 
-verifyEnumerable(obj, "foo");
-
-verifyConfigurable(obj, "foo");
+verifyProperty(obj, "foo", {
+  enumerable: true,
+  configurable: true,
+});
diff --git a/test/built-ins/Object/defineProperty/15.2.3.6-4-113.js b/test/built-ins/Object/defineProperty/15.2.3.6-4-113.js
index 7ec7a57bf2..19df66ca29 100644
--- a/test/built-ins/Object/defineProperty/15.2.3.6-4-113.js
+++ b/test/built-ins/Object/defineProperty/15.2.3.6-4-113.js
@@ -30,6 +30,7 @@ Object.defineProperty(obj, "foo", {
 
 verifyEqualTo(obj, "foo", getFunc());
 
-verifyNotEnumerable(obj, "foo");
-
-verifyConfigurable(obj, "foo");
+verifyProperty(obj, "foo", {
+  enumerable: false,
+  configurable: true,
+});
diff --git a/test/built-ins/Object/defineProperty/15.2.3.6-4-114.js b/test/built-ins/Object/defineProperty/15.2.3.6-4-114.js
index c8f90bfcc2..ec61e50356 100644
--- a/test/built-ins/Object/defineProperty/15.2.3.6-4-114.js
+++ b/test/built-ins/Object/defineProperty/15.2.3.6-4-114.js
@@ -35,6 +35,7 @@ verifyEqualTo(obj, "foo", getFunc());
 
 verifyWritable(obj, "foo", "setVerifyHelpProp");
 
-verifyNotEnumerable(obj, "foo");
-
-verifyNotConfigurable(obj, "foo");
+verifyProperty(obj, "foo", {
+  enumerable: false,
+  configurable: false,
+});
diff --git a/test/built-ins/Object/defineProperty/15.2.3.6-4-115.js b/test/built-ins/Object/defineProperty/15.2.3.6-4-115.js
index 702324b47d..7f9bd9c57d 100644
--- a/test/built-ins/Object/defineProperty/15.2.3.6-4-115.js
+++ b/test/built-ins/Object/defineProperty/15.2.3.6-4-115.js
@@ -42,6 +42,7 @@ verifyEqualTo(obj, "foo", getFunc2());
 
 verifyWritable(obj, "foo", "setVerifyHelpProp");
 
-verifyNotEnumerable(obj, "foo");
-
-verifyConfigurable(obj, "foo");
+verifyProperty(obj, "foo", {
+  enumerable: false,
+  configurable: true,
+});
diff --git a/test/built-ins/Object/defineProperty/15.2.3.6-4-118.js b/test/built-ins/Object/defineProperty/15.2.3.6-4-118.js
index 9d6eac00a2..c4716e269e 100644
--- a/test/built-ins/Object/defineProperty/15.2.3.6-4-118.js
+++ b/test/built-ins/Object/defineProperty/15.2.3.6-4-118.js
@@ -16,6 +16,9 @@ Object.defineProperty(arrObj, "length", {});
 
 assert.sameValue(arrObj.length, 0);
 arrObj.length = 2;
-assert.sameValue(arrObj.length, 2);
-verifyNotEnumerable(arrObj, "length");
-verifyNotConfigurable(arrObj, "length");
+
+verifyProperty(arrObj, "length", {
+  value: 2,
+  enumerable: false,
+  configurable: false,
+});
diff --git a/test/built-ins/Object/defineProperty/15.2.3.6-4-119.js b/test/built-ins/Object/defineProperty/15.2.3.6-4-119.js
index f1bef7cb15..48d765efe4 100644
--- a/test/built-ins/Object/defineProperty/15.2.3.6-4-119.js
+++ b/test/built-ins/Object/defineProperty/15.2.3.6-4-119.js
@@ -21,6 +21,9 @@ Object.defineProperty(arrObj, "length", {
 
 assert.sameValue(arrObj.length, 0);
 arrObj.length = 2;
-assert.sameValue(arrObj.length, 2);
-verifyNotEnumerable(arrObj, "length");
-verifyNotConfigurable(arrObj, "length");
+
+verifyProperty(arrObj, "length", {
+  value: 2,
+  enumerable: false,
+  configurable: false,
+});
diff --git a/test/built-ins/Object/defineProperty/15.2.3.6-4-124.js b/test/built-ins/Object/defineProperty/15.2.3.6-4-124.js
index e5940a0649..9747b9c3f5 100644
--- a/test/built-ins/Object/defineProperty/15.2.3.6-4-124.js
+++ b/test/built-ins/Object/defineProperty/15.2.3.6-4-124.js
@@ -16,10 +16,10 @@ var arrObj = [];
 Object.defineProperty(arrObj, "length", {
   writable: false
 });
-verifyEqualTo(arrObj, "length", 0);
 
-verifyNotWritable(arrObj, "length");
-
-verifyNotEnumerable(arrObj, "length");
-
-verifyNotConfigurable(arrObj, "length");
+verifyProperty(arrObj, "length", {
+  value: 0,
+  writable: false,
+  enumerable: false,
+  configurable: false,
+});
diff --git a/test/built-ins/Object/defineProperty/15.2.3.6-4-167.js b/test/built-ins/Object/defineProperty/15.2.3.6-4-167.js
index a2de291b8a..2106ed9a6b 100644
--- a/test/built-ins/Object/defineProperty/15.2.3.6-4-167.js
+++ b/test/built-ins/Object/defineProperty/15.2.3.6-4-167.js
@@ -22,5 +22,8 @@ Object.defineProperty(arrObj, "length", {
 });
 
 assert(!arrObj.hasOwnProperty("1"))
-assert.sameValue(arrObj.length, 1);
-verifyNotWritable(arrObj, "length");
+
+verifyProperty(arrObj, "length", {
+  value: 1,
+  writable: false,
+});
diff --git a/test/built-ins/Object/defineProperty/15.2.3.6-4-181.js b/test/built-ins/Object/defineProperty/15.2.3.6-4-181.js
index 11dcd7d497..af2e5b983b 100644
--- a/test/built-ins/Object/defineProperty/15.2.3.6-4-181.js
+++ b/test/built-ins/Object/defineProperty/15.2.3.6-4-181.js
@@ -21,7 +21,9 @@ Object.defineProperty(arrObj, "length", {
   writable: false
 });
 
-verifyNotWritable(arrObj, "length");
-
 assert(!arrObj.hasOwnProperty("1"));
-assert.sameValue(arrObj.length, 0);
+
+verifyProperty(arrObj, "length", {
+  value: 0,
+  writable: false,
+});
diff --git a/test/built-ins/Object/defineProperty/15.2.3.6-4-190.js b/test/built-ins/Object/defineProperty/15.2.3.6-4-190.js
index 41014a62f7..85ed7b0b0d 100644
--- a/test/built-ins/Object/defineProperty/15.2.3.6-4-190.js
+++ b/test/built-ins/Object/defineProperty/15.2.3.6-4-190.js
@@ -24,15 +24,14 @@ try {
   });
   throw new Test262Error("Expected an exception.");
 } catch (e) {
-  verifyEqualTo(arrObj, "0", "ownDataProperty");
-
-  verifyNotWritable(arrObj, "0");
-
-  verifyNotEnumerable(arrObj, "0");
-
-  verifyNotConfigurable(arrObj, "0");
-
   if (!(e instanceof TypeError)) {
     throw new Test262Error("Expected TypeError, got " + e);
   }
 }
+
+verifyProperty(arrObj, "0", {
+  value: "ownDataProperty",
+  writable: false,
+  enumerable: false,
+  configurable: false,
+});
diff --git a/test/built-ins/Object/defineProperty/15.2.3.6-4-194.js b/test/built-ins/Object/defineProperty/15.2.3.6-4-194.js
index 2bbd215e26..e57b79525f 100644
--- a/test/built-ins/Object/defineProperty/15.2.3.6-4-194.js
+++ b/test/built-ins/Object/defineProperty/15.2.3.6-4-194.js
@@ -29,12 +29,12 @@ try {
 } catch (e) {
   verifyEqualTo(arrObj, "0", getFunc());
 
-  verifyNotEnumerable(arrObj, "0");
-
-  verifyNotConfigurable(arrObj, "0");
-
   if (!(e instanceof TypeError)) {
     throw new Test262Error("Expected TypeError, got " + e.name);
   }
-
 }
+
+verifyProperty(arrObj, "0", {
+  enumerable: false,
+  configurable: false,
+});
diff --git a/test/built-ins/Object/defineProperty/15.2.3.6-4-195.js b/test/built-ins/Object/defineProperty/15.2.3.6-4-195.js
index 491372f016..5ce0608590 100644
--- a/test/built-ins/Object/defineProperty/15.2.3.6-4-195.js
+++ b/test/built-ins/Object/defineProperty/15.2.3.6-4-195.js
@@ -41,9 +41,10 @@ try {
 
   verifyWritable(arrObj, "0", "helpVerifySet");
 
-  verifyNotEnumerable(arrObj, "0");
-
-  verifyNotConfigurable(arrObj, "0");
+  verifyProperty(arrObj, "0", {
+    enumerable: false,
+    configurable: false,
+  });
 } finally {
   delete Array.prototype[0];
 }
diff --git a/test/built-ins/Object/defineProperty/15.2.3.6-4-199.js b/test/built-ins/Object/defineProperty/15.2.3.6-4-199.js
index 58c486b4c4..d939c8f0cf 100644
--- a/test/built-ins/Object/defineProperty/15.2.3.6-4-199.js
+++ b/test/built-ins/Object/defineProperty/15.2.3.6-4-199.js
@@ -17,10 +17,9 @@ Object.defineProperty(arrObj, "0", {
   enumerable: true
 });
 
-verifyEqualTo(arrObj, "0", undefined);
-
-verifyNotWritable(arrObj, "0");
-
-verifyEnumerable(arrObj, "0");
-
-verifyNotConfigurable(arrObj, "0");
+verifyProperty(arrObj, "0", {
+  value: undefined,
+  writable: false,
+  enumerable: true,
+  configurable: false,
+});
diff --git a/test/built-ins/Object/defineProperty/15.2.3.6-4-200.js b/test/built-ins/Object/defineProperty/15.2.3.6-4-200.js
index 9f5256890b..efa8599b89 100644
--- a/test/built-ins/Object/defineProperty/15.2.3.6-4-200.js
+++ b/test/built-ins/Object/defineProperty/15.2.3.6-4-200.js
@@ -20,10 +20,9 @@ Object.defineProperty(arrObj, "0", {
   configurable: false
 });
 
-verifyEqualTo(arrObj, "0", undefined);
-
-verifyWritable(arrObj, "0");
-
-verifyEnumerable(arrObj, "0");
-
-verifyNotConfigurable(arrObj, "0");
+verifyProperty(arrObj, "0", {
+  value: undefined,
+  writable: true,
+  enumerable: true,
+  configurable: false,
+});
diff --git a/test/built-ins/Object/defineProperty/15.2.3.6-4-201.js b/test/built-ins/Object/defineProperty/15.2.3.6-4-201.js
index f0482af89b..40b59f654d 100644
--- a/test/built-ins/Object/defineProperty/15.2.3.6-4-201.js
+++ b/test/built-ins/Object/defineProperty/15.2.3.6-4-201.js
@@ -19,10 +19,10 @@ Object.defineProperty(arrObj, "0", {
   enumerable: true,
   configurable: false
 });
-verifyEqualTo(arrObj, "0", 1001);
 
-verifyNotWritable(arrObj, "0");
-
-verifyEnumerable(arrObj, "0");
-
-verifyNotConfigurable(arrObj, "0");
+verifyProperty(arrObj, "0", {
+  value: 1001,
+  writable: false,
+  enumerable: true,
+  configurable: false,
+});
diff --git a/test/built-ins/Object/defineProperty/15.2.3.6-4-202.js b/test/built-ins/Object/defineProperty/15.2.3.6-4-202.js
index d6bdee22b1..67898e5dbd 100644
--- a/test/built-ins/Object/defineProperty/15.2.3.6-4-202.js
+++ b/test/built-ins/Object/defineProperty/15.2.3.6-4-202.js
@@ -19,10 +19,10 @@ Object.defineProperty(arrObj, "0", {
   writable: true,
   configurable: true
 });
-verifyEqualTo(arrObj, "0", 1001);
 
-verifyWritable(arrObj, "0");
-
-verifyNotEnumerable(arrObj, "0");
-
-verifyConfigurable(arrObj, "0");
+verifyProperty(arrObj, "0", {
+  value: 1001,
+  writable: true,
+  enumerable: false,
+  configurable: true,
+});
diff --git a/test/built-ins/Object/defineProperty/15.2.3.6-4-203.js b/test/built-ins/Object/defineProperty/15.2.3.6-4-203.js
index abee7a278e..fdb2ffebd5 100644
--- a/test/built-ins/Object/defineProperty/15.2.3.6-4-203.js
+++ b/test/built-ins/Object/defineProperty/15.2.3.6-4-203.js
@@ -19,10 +19,10 @@ Object.defineProperty(arrObj, "0", {
   writable: true,
   enumerable: true
 });
-verifyEqualTo(arrObj, "0", 1001);
 
-verifyWritable(arrObj, "0");
-
-verifyEnumerable(arrObj, "0");
-
-verifyNotConfigurable(arrObj, "0");
+verifyProperty(arrObj, "0", {
+  value: 1001,
+  writable: true,
+  enumerable: true,
+  configurable: false,
+});
diff --git a/test/built-ins/Object/defineProperty/15.2.3.6-4-204.js b/test/built-ins/Object/defineProperty/15.2.3.6-4-204.js
index e19e46508f..176b20d7f9 100644
--- a/test/built-ins/Object/defineProperty/15.2.3.6-4-204.js
+++ b/test/built-ins/Object/defineProperty/15.2.3.6-4-204.js
@@ -19,10 +19,9 @@ Object.defineProperty(arrObj, "0", {
   configurable: false
 });
 
-verifyEqualTo(arrObj, "0", 1001);
-
-verifyNotWritable(arrObj, "0");
-
-verifyNotEnumerable(arrObj, "0");
-
-verifyNotConfigurable(arrObj, "0");
+verifyProperty(arrObj, "0", {
+  value: 1001,
+  writable: false,
+  enumerable: false,
+  configurable: false,
+});
diff --git a/test/built-ins/Object/defineProperty/15.2.3.6-4-205.js b/test/built-ins/Object/defineProperty/15.2.3.6-4-205.js
index 04c926f702..8e3fd42db2 100644
--- a/test/built-ins/Object/defineProperty/15.2.3.6-4-205.js
+++ b/test/built-ins/Object/defineProperty/15.2.3.6-4-205.js
@@ -24,6 +24,7 @@ Object.defineProperty(arrObj, "0", {
 
 verifyWritable(arrObj, "0", "setVerifyHelpProp");
 
-verifyEnumerable(arrObj, "0");
-
-verifyConfigurable(arrObj, "0");
+verifyProperty(arrObj, "0", {
+  enumerable: true,
+  configurable: true,
+});
diff --git a/test/built-ins/Object/defineProperty/15.2.3.6-4-207.js b/test/built-ins/Object/defineProperty/15.2.3.6-4-207.js
index 338b788eff..b7811fa469 100644
--- a/test/built-ins/Object/defineProperty/15.2.3.6-4-207.js
+++ b/test/built-ins/Object/defineProperty/15.2.3.6-4-207.js
@@ -28,6 +28,7 @@ verifyEqualTo(arrObj, "0", getFunc());
 
 verifyWritable(arrObj, "0", "setVerifyHelpProp");
 
-verifyNotEnumerable(arrObj, "0");
-
-verifyConfigurable(arrObj, "0");
+verifyProperty(arrObj, "0", {
+  enumerable: false,
+  configurable: true,
+});
diff --git a/test/built-ins/Object/defineProperty/15.2.3.6-4-208.js b/test/built-ins/Object/defineProperty/15.2.3.6-4-208.js
index 540472ce31..01cdc164c6 100644
--- a/test/built-ins/Object/defineProperty/15.2.3.6-4-208.js
+++ b/test/built-ins/Object/defineProperty/15.2.3.6-4-208.js
@@ -27,6 +27,7 @@ verifyEqualTo(arrObj, "0", getFunc());
 
 verifyWritable(arrObj, "0", "setVerifyHelpProp");
 
-verifyEnumerable(arrObj, "0");
-
-verifyNotConfigurable(arrObj, "0");
+verifyProperty(arrObj, "0", {
+  enumerable: true,
+  configurable: false,
+});
diff --git a/test/built-ins/Object/defineProperty/15.2.3.6-4-209.js b/test/built-ins/Object/defineProperty/15.2.3.6-4-209.js
index 315efeb877..608ff82c43 100644
--- a/test/built-ins/Object/defineProperty/15.2.3.6-4-209.js
+++ b/test/built-ins/Object/defineProperty/15.2.3.6-4-209.js
@@ -38,6 +38,7 @@ verifyEqualTo(arrObj, "0", getFunc());
 
 verifyWritable(arrObj, "0", "setVerifyHelpProp");
 
-verifyNotEnumerable(arrObj, "0");
-
-verifyNotConfigurable(arrObj, "0");
+verifyProperty(arrObj, "0", {
+  enumerable: false,
+  configurable: false,
+});
diff --git a/test/built-ins/Object/defineProperty/15.2.3.6-4-210.js b/test/built-ins/Object/defineProperty/15.2.3.6-4-210.js
index 0cd5779c47..a109ac18fc 100644
--- a/test/built-ins/Object/defineProperty/15.2.3.6-4-210.js
+++ b/test/built-ins/Object/defineProperty/15.2.3.6-4-210.js
@@ -15,10 +15,10 @@ var arrObj = [];
 arrObj[0] = 101; // default value of attributes: writable: true, configurable: true, enumerable: true
 
 Object.defineProperty(arrObj, "0", {});
-verifyEqualTo(arrObj, "0", 101);
 
-verifyWritable(arrObj, "0");
-
-verifyEnumerable(arrObj, "0");
-
-verifyConfigurable(arrObj, "0");
+verifyProperty(arrObj, "0", {
+  value: 101,
+  writable: true,
+  enumerable: true,
+  configurable: true,
+});
diff --git a/test/built-ins/Object/defineProperty/15.2.3.6-4-211.js b/test/built-ins/Object/defineProperty/15.2.3.6-4-211.js
index 030a92221c..1eb56bca5b 100644
--- a/test/built-ins/Object/defineProperty/15.2.3.6-4-211.js
+++ b/test/built-ins/Object/defineProperty/15.2.3.6-4-211.js
@@ -32,6 +32,7 @@ verifyEqualTo(arrObj, "0", getFunc());
 
 verifyWritable(arrObj, "0", "setVerifyHelpProp");
 
-verifyEnumerable(arrObj, "0");
-
-verifyConfigurable(arrObj, "0");
+verifyProperty(arrObj, "0", {
+  enumerable: true,
+  configurable: true,
+});
diff --git a/test/built-ins/Object/defineProperty/15.2.3.6-4-212.js b/test/built-ins/Object/defineProperty/15.2.3.6-4-212.js
index a7abee3101..2904e5805d 100644
--- a/test/built-ins/Object/defineProperty/15.2.3.6-4-212.js
+++ b/test/built-ins/Object/defineProperty/15.2.3.6-4-212.js
@@ -22,10 +22,9 @@ Object.defineProperty(arrObj, "0", {
   configurable: true
 });
 
-verifyEqualTo(arrObj, "0", 100);
-
-verifyWritable(arrObj, "0");
-
-verifyEnumerable(arrObj, "0");
-
-verifyConfigurable(arrObj, "0");
+verifyProperty(arrObj, "0", {
+  value: 100,
+  writable: true,
+  enumerable: true,
+  configurable: true,
+});
diff --git a/test/built-ins/Object/defineProperty/15.2.3.6-4-213.js b/test/built-ins/Object/defineProperty/15.2.3.6-4-213.js
index 2b691bf416..7dbf74d199 100644
--- a/test/built-ins/Object/defineProperty/15.2.3.6-4-213.js
+++ b/test/built-ins/Object/defineProperty/15.2.3.6-4-213.js
@@ -39,6 +39,7 @@ verifyEqualTo(arrObj, "0", getFunc());
 
 verifyWritable(arrObj, "0", "setVerifyHelpProp");
 
-verifyEnumerable(arrObj, "0");
-
-verifyConfigurable(arrObj, "0");
+verifyProperty(arrObj, "0", {
+  enumerable: true,
+  configurable: true,
+});
diff --git a/test/built-ins/Object/defineProperty/15.2.3.6-4-214.js b/test/built-ins/Object/defineProperty/15.2.3.6-4-214.js
index be41ec4109..cde4637b1c 100644
--- a/test/built-ins/Object/defineProperty/15.2.3.6-4-214.js
+++ b/test/built-ins/Object/defineProperty/15.2.3.6-4-214.js
@@ -26,16 +26,14 @@ try {
   });
   throw new Test262Error("Expected an exception.");
 } catch (e) {
-  verifyEqualTo(arrObj, "0", 101);
-
-  verifyNotWritable(arrObj, "0");
-
-  verifyNotEnumerable(arrObj, "0");
-
-  verifyNotConfigurable(arrObj, "0");
-
   if (!(e instanceof TypeError)) {
     throw new Test262Error("Expected TypeError, got " + e);
   }
-
 }
+
+verifyProperty(arrObj, "0", {
+  value: 101,
+  writable: false,
+  enumerable: false,
+  configurable: false,
+});
diff --git a/test/built-ins/Object/defineProperty/15.2.3.6-4-215.js b/test/built-ins/Object/defineProperty/15.2.3.6-4-215.js
index 49bff01a3a..718b59b750 100644
--- a/test/built-ins/Object/defineProperty/15.2.3.6-4-215.js
+++ b/test/built-ins/Object/defineProperty/15.2.3.6-4-215.js
@@ -19,10 +19,10 @@ Object.defineProperty(arrObj, "0", {
 Object.defineProperty(arrObj, "0", {
   value: undefined
 });
-verifyEqualTo(arrObj, "0", undefined);
 
-verifyNotWritable(arrObj, "0");
-
-verifyNotEnumerable(arrObj, "0");
-
-verifyNotConfigurable(arrObj, "0");
+verifyProperty(arrObj, "0", {
+  value: undefined,
+  writable: false,
+  enumerable: false,
+  configurable: false,
+});
diff --git a/test/built-ins/Object/defineProperty/15.2.3.6-4-216.js b/test/built-ins/Object/defineProperty/15.2.3.6-4-216.js
index ec465e9c28..257e4e4c3b 100644
--- a/test/built-ins/Object/defineProperty/15.2.3.6-4-216.js
+++ b/test/built-ins/Object/defineProperty/15.2.3.6-4-216.js
@@ -19,10 +19,10 @@ Object.defineProperty(arrObj, "0", {
 Object.defineProperty(arrObj, "0", {
   value: null
 });
-verifyEqualTo(arrObj, "0", null);
 
-verifyNotWritable(arrObj, "0");
-
-verifyNotEnumerable(arrObj, "0");
-
-verifyNotConfigurable(arrObj, "0");
+verifyProperty(arrObj, "0", {
+  value: null,
+  writable: false,
+  enumerable: false,
+  configurable: false,
+});
diff --git a/test/built-ins/Object/defineProperty/15.2.3.6-4-217.js b/test/built-ins/Object/defineProperty/15.2.3.6-4-217.js
index a8851cf79d..7f2704c4e5 100644
--- a/test/built-ins/Object/defineProperty/15.2.3.6-4-217.js
+++ b/test/built-ins/Object/defineProperty/15.2.3.6-4-217.js
@@ -20,9 +20,9 @@ Object.defineProperty(arrObj, "0", {
   value: NaN
 });
 
-assert(arrObj.hasOwnProperty("0"));
-assert(arrObj[0] !== arrObj[0]);
-
-verifyNotWritable(arrObj, "0");
-verifyNotEnumerable(arrObj, "0");
-verifyNotConfigurable(arrObj, "0");
+verifyProperty(arrObj, "0", {
+  value: NaN,
+  writable: false,
+  enumerable: false,
+  configurable: false,
+});
diff --git a/test/built-ins/Object/defineProperty/15.2.3.6-4-218.js b/test/built-ins/Object/defineProperty/15.2.3.6-4-218.js
index 346045a403..388fa6c396 100644
--- a/test/built-ins/Object/defineProperty/15.2.3.6-4-218.js
+++ b/test/built-ins/Object/defineProperty/15.2.3.6-4-218.js
@@ -23,16 +23,14 @@ try {
   });
   throw new Test262Error("Expected an exception.");
 } catch (e) {
-  verifyEqualTo(arrObj, "0", -0);
-
-  verifyNotWritable(arrObj, "0");
-
-  verifyNotEnumerable(arrObj, "0");
-
-  verifyNotConfigurable(arrObj, "0");
-
   if (!(e instanceof TypeError)) {
     throw new Test262Error("Expected TypeError, got " + e);
   }
-
 }
+
+verifyProperty(arrObj, "0", {
+  value: -0,
+  writable: false,
+  enumerable: false,
+  configurable: false,
+});
diff --git a/test/built-ins/Object/defineProperty/15.2.3.6-4-219.js b/test/built-ins/Object/defineProperty/15.2.3.6-4-219.js
index 28624b02f9..b382383a12 100644
--- a/test/built-ins/Object/defineProperty/15.2.3.6-4-219.js
+++ b/test/built-ins/Object/defineProperty/15.2.3.6-4-219.js
@@ -23,16 +23,14 @@ try {
   });
   throw new Test262Error("Expected an exception.");
 } catch (e) {
-  verifyEqualTo(arrObj, "0", +0);
-
-  verifyNotWritable(arrObj, "0");
-
-  verifyNotEnumerable(arrObj, "0");
-
-  verifyNotConfigurable(arrObj, "0");
-
   if (!(e instanceof TypeError)) {
     throw new Test262Error("Expected TypeError, got " + e);
   }
-
 }
+
+verifyProperty(arrObj, "0", {
+  value: +0,
+  writable: false,
+  enumerable: false,
+  configurable: false,
+});
diff --git a/test/built-ins/Object/defineProperty/15.2.3.6-4-220.js b/test/built-ins/Object/defineProperty/15.2.3.6-4-220.js
index 10696ad39b..58973dd050 100644
--- a/test/built-ins/Object/defineProperty/15.2.3.6-4-220.js
+++ b/test/built-ins/Object/defineProperty/15.2.3.6-4-220.js
@@ -20,10 +20,10 @@ Object.defineProperty(arrObj, "0", {
 Object.defineProperty(arrObj, "0", {
   value: 101
 });
-verifyEqualTo(arrObj, "0", 101);
 
-verifyNotWritable(arrObj, "0");
-
-verifyNotEnumerable(arrObj, "0");
-
-verifyNotConfigurable(arrObj, "0");
+verifyProperty(arrObj, "0", {
+  value: 101,
+  writable: false,
+  enumerable: false,
+  configurable: false,
+});
diff --git a/test/built-ins/Object/defineProperty/15.2.3.6-4-221.js b/test/built-ins/Object/defineProperty/15.2.3.6-4-221.js
index 3bc3554501..00b58d6e18 100644
--- a/test/built-ins/Object/defineProperty/15.2.3.6-4-221.js
+++ b/test/built-ins/Object/defineProperty/15.2.3.6-4-221.js
@@ -25,16 +25,14 @@ try {
   });
   throw new Test262Error("Expected an exception.");
 } catch (e) {
-  verifyEqualTo(arrObj, "0", 101);
-
-  verifyNotWritable(arrObj, "0");
-
-  verifyNotEnumerable(arrObj, "0");
-
-  verifyNotConfigurable(arrObj, "0");
-
   if (!(e instanceof TypeError)) {
     throw new Test262Error("Expected TypeError, got " + e);
   }
-
 }
+
+verifyProperty(arrObj, "0", {
+  value: 101,
+  writable: false,
+  enumerable: false,
+  configurable: false,
+});
diff --git a/test/built-ins/Object/defineProperty/15.2.3.6-4-222.js b/test/built-ins/Object/defineProperty/15.2.3.6-4-222.js
index ed3c0936cc..391bff02fe 100644
--- a/test/built-ins/Object/defineProperty/15.2.3.6-4-222.js
+++ b/test/built-ins/Object/defineProperty/15.2.3.6-4-222.js
@@ -20,10 +20,10 @@ Object.defineProperty(arrObj, "0", {
 Object.defineProperty(arrObj, "0", {
   value: "abcd"
 });
-verifyEqualTo(arrObj, "0", "abcd");
 
-verifyNotWritable(arrObj, "0");
-
-verifyNotEnumerable(arrObj, "0");
-
-verifyNotConfigurable(arrObj, "0");
+verifyProperty(arrObj, "0", {
+  value: "abcd",
+  writable: false,
+  enumerable: false,
+  configurable: false,
+});
diff --git a/test/built-ins/Object/defineProperty/15.2.3.6-4-223.js b/test/built-ins/Object/defineProperty/15.2.3.6-4-223.js
index 2fd286ba29..07cb7b875e 100644
--- a/test/built-ins/Object/defineProperty/15.2.3.6-4-223.js
+++ b/test/built-ins/Object/defineProperty/15.2.3.6-4-223.js
@@ -25,16 +25,14 @@ try {
   });
   throw new Test262Error("Expected an exception.");
 } catch (e) {
-  verifyEqualTo(arrObj, "0", "abcd");
-
-  verifyNotWritable(arrObj, "0");
-
-  verifyNotEnumerable(arrObj, "0");
-
-  verifyNotConfigurable(arrObj, "0");
-
   if (!(e instanceof TypeError)) {
     throw new Test262Error("Expected TypeError, got " + e);
   }
-
 }
+
+verifyProperty(arrObj, "0", {
+  value: "abcd",
+  writable: false,
+  enumerable: false,
+  configurable: false,
+});
diff --git a/test/built-ins/Object/defineProperty/15.2.3.6-4-224.js b/test/built-ins/Object/defineProperty/15.2.3.6-4-224.js
index de19df976c..37aedff932 100644
--- a/test/built-ins/Object/defineProperty/15.2.3.6-4-224.js
+++ b/test/built-ins/Object/defineProperty/15.2.3.6-4-224.js
@@ -20,10 +20,10 @@ Object.defineProperty(arrObj, "0", {
 Object.defineProperty(arrObj, "0", {
   value: true
 });
-verifyEqualTo(arrObj, "0", true);
 
-verifyNotWritable(arrObj, "0");
-
-verifyNotEnumerable(arrObj, "0");
-
-verifyNotConfigurable(arrObj, "0");
+verifyProperty(arrObj, "0", {
+  value: true,
+  writable: false,
+  enumerable: false,
+  configurable: false,
+});
diff --git a/test/built-ins/Object/defineProperty/15.2.3.6-4-225.js b/test/built-ins/Object/defineProperty/15.2.3.6-4-225.js
index f988e61f52..ac2a6f91bb 100644
--- a/test/built-ins/Object/defineProperty/15.2.3.6-4-225.js
+++ b/test/built-ins/Object/defineProperty/15.2.3.6-4-225.js
@@ -25,16 +25,14 @@ try {
   });
   throw new Test262Error("Expected an exception.");
 } catch (e) {
-  verifyEqualTo(arrObj, "0", true);
-
-  verifyNotWritable(arrObj, "0");
-
-  verifyNotEnumerable(arrObj, "0");
-
-  verifyNotConfigurable(arrObj, "0");
-
   if (!(e instanceof TypeError)) {
     throw new Test262Error("Expected TypeError, got " + e);
   }
-
 }
+
+verifyProperty(arrObj, "0", {
+  value: true,
+  writable: false,
+  enumerable: false,
+  configurable: false,
+});
diff --git a/test/built-ins/Object/defineProperty/15.2.3.6-4-226.js b/test/built-ins/Object/defineProperty/15.2.3.6-4-226.js
index 5b7e7edd28..f755a1edf0 100644
--- a/test/built-ins/Object/defineProperty/15.2.3.6-4-226.js
+++ b/test/built-ins/Object/defineProperty/15.2.3.6-4-226.js
@@ -24,10 +24,11 @@ Object.defineProperty(arrObj, "0", {
 Object.defineProperty(arrObj, "0", {
   value: obj1
 });
-verifyEqualTo(arrObj, "0", obj1);
 
-verifyNotWritable(arrObj, "0");
+verifyProperty(arrObj, "0", {
+  value: obj1,
+  writable: false,
+  enumerable: false,
+  configurable: false,
+});
 
-verifyNotEnumerable(arrObj, "0");
-
-verifyNotConfigurable(arrObj, "0");
diff --git a/test/built-ins/Object/defineProperty/15.2.3.6-4-227.js b/test/built-ins/Object/defineProperty/15.2.3.6-4-227.js
index 5acc07bb1c..cf456d7b37 100644
--- a/test/built-ins/Object/defineProperty/15.2.3.6-4-227.js
+++ b/test/built-ins/Object/defineProperty/15.2.3.6-4-227.js
@@ -32,16 +32,14 @@ try {
   });
   throw new Test262Error("Expected an exception.");
 } catch (e) {
-  verifyEqualTo(arrObj, "0", obj1);
-
-  verifyNotWritable(arrObj, "0");
-
-  verifyNotEnumerable(arrObj, "0");
-
-  verifyNotConfigurable(arrObj, "0");
-
   if (!(e instanceof TypeError)) {
     throw new Test262Error("Expected TypeError, got " + e);
   }
-
 }
+
+verifyProperty(arrObj, "0", {
+  value: obj1,
+  writable: false,
+  enumerable: false,
+  configurable: false,
+});
diff --git a/test/built-ins/Object/defineProperty/15.2.3.6-4-228.js b/test/built-ins/Object/defineProperty/15.2.3.6-4-228.js
index 3e873291d5..a497268201 100644
--- a/test/built-ins/Object/defineProperty/15.2.3.6-4-228.js
+++ b/test/built-ins/Object/defineProperty/15.2.3.6-4-228.js
@@ -20,10 +20,10 @@ Object.defineProperty(arrObj, "0", {
 Object.defineProperty(arrObj, "0", {
   writable: false
 });
-verifyEqualTo(arrObj, "0", undefined);
 
-verifyNotWritable(arrObj, "0");
-
-verifyNotEnumerable(arrObj, "0");
-
-verifyNotConfigurable(arrObj, "0");
+verifyProperty(arrObj, "0", {
+  value: undefined,
+  writable: false,
+  enumerable: false,
+  configurable: false,
+});
diff --git a/test/built-ins/Object/defineProperty/15.2.3.6-4-229.js b/test/built-ins/Object/defineProperty/15.2.3.6-4-229.js
index 859a41f627..cc8164e8e6 100644
--- a/test/built-ins/Object/defineProperty/15.2.3.6-4-229.js
+++ b/test/built-ins/Object/defineProperty/15.2.3.6-4-229.js
@@ -21,10 +21,10 @@ Object.defineProperty(arrObj, "0", {
 Object.defineProperty(arrObj, "0", {
   writable: true
 });
-verifyEqualTo(arrObj, "0", undefined);
 
-verifyWritable(arrObj, "0");
-
-verifyNotEnumerable(arrObj, "0");
-
-verifyConfigurable(arrObj, "0");
+verifyProperty(arrObj, "0", {
+  value: undefined,
+  writable: true,
+  enumerable: false,
+  configurable: true,
+});
diff --git a/test/built-ins/Object/defineProperty/15.2.3.6-4-230.js b/test/built-ins/Object/defineProperty/15.2.3.6-4-230.js
index d2d6797a6b..63aa0e37e4 100644
--- a/test/built-ins/Object/defineProperty/15.2.3.6-4-230.js
+++ b/test/built-ins/Object/defineProperty/15.2.3.6-4-230.js
@@ -34,6 +34,7 @@ verifyEqualTo(arrObj, "0", getFunc());
 
 verifyWritable(arrObj, "0", "helpVerifySet");
 
-verifyNotEnumerable(arrObj, "0");
-
-verifyNotConfigurable(arrObj, "0");
+verifyProperty(arrObj, "0", {
+  enumerable: false,
+  configurable: false,
+});
diff --git a/test/built-ins/Object/defineProperty/15.2.3.6-4-231.js b/test/built-ins/Object/defineProperty/15.2.3.6-4-231.js
index b8cac4a63c..6eafb69618 100644
--- a/test/built-ins/Object/defineProperty/15.2.3.6-4-231.js
+++ b/test/built-ins/Object/defineProperty/15.2.3.6-4-231.js
@@ -40,6 +40,7 @@ verifyEqualTo(arrObj, "0", getFunc2());
 
 verifyWritable(arrObj, "0", "helpVerifySet");
 
-verifyNotEnumerable(arrObj, "0");
-
-verifyConfigurable(arrObj, "0");
+verifyProperty(arrObj, "0", {
+  enumerable: false,
+  configurable: true,
+});
diff --git a/test/built-ins/Object/defineProperty/15.2.3.6-4-232.js b/test/built-ins/Object/defineProperty/15.2.3.6-4-232.js
index 757da898b2..b6817d510e 100644
--- a/test/built-ins/Object/defineProperty/15.2.3.6-4-232.js
+++ b/test/built-ins/Object/defineProperty/15.2.3.6-4-232.js
@@ -26,6 +26,7 @@ Object.defineProperty(arrObj, "0", {
 });
 verifyWritable(arrObj, "0", "setVerifyHelpProp");
 
-verifyNotEnumerable(arrObj, "0");
-
-verifyNotConfigurable(arrObj, "0");
+verifyProperty(arrObj, "0", {
+  enumerable: false,
+  configurable: false,
+});
diff --git a/test/built-ins/Object/defineProperty/15.2.3.6-4-233.js b/test/built-ins/Object/defineProperty/15.2.3.6-4-233.js
index 1fb647246b..cb9ae5c84a 100644
--- a/test/built-ins/Object/defineProperty/15.2.3.6-4-233.js
+++ b/test/built-ins/Object/defineProperty/15.2.3.6-4-233.js
@@ -29,6 +29,7 @@ Object.defineProperty(arrObj, "0", {
 });
 verifyWritable(arrObj, "0", "setVerifyHelpProp");
 
-verifyNotEnumerable(arrObj, "0");
-
-verifyConfigurable(arrObj, "0");
+verifyProperty(arrObj, "0", {
+  enumerable: false,
+  configurable: true,
+});
diff --git a/test/built-ins/Object/defineProperty/15.2.3.6-4-234.js b/test/built-ins/Object/defineProperty/15.2.3.6-4-234.js
index 20d6f364b4..f48605e64b 100644
--- a/test/built-ins/Object/defineProperty/15.2.3.6-4-234.js
+++ b/test/built-ins/Object/defineProperty/15.2.3.6-4-234.js
@@ -20,10 +20,10 @@ Object.defineProperty(arrObj, "0", {
 Object.defineProperty(arrObj, "0", {
   enumerable: false
 });
-verifyEqualTo(arrObj, "0", undefined);
 
-verifyNotWritable(arrObj, "0");
-
-verifyNotEnumerable(arrObj, "0");
-
-verifyNotConfigurable(arrObj, "0");
+verifyProperty(arrObj, "0", {
+  value: undefined,
+  writable: false,
+  enumerable: false,
+  configurable: false,
+});
diff --git a/test/built-ins/Object/defineProperty/15.2.3.6-4-235.js b/test/built-ins/Object/defineProperty/15.2.3.6-4-235.js
index bc5cf27899..0d934a9196 100644
--- a/test/built-ins/Object/defineProperty/15.2.3.6-4-235.js
+++ b/test/built-ins/Object/defineProperty/15.2.3.6-4-235.js
@@ -21,10 +21,10 @@ Object.defineProperty(arrObj, "0", {
 Object.defineProperty(arrObj, "0", {
   enumerable: true
 });
-verifyEqualTo(arrObj, "0", undefined);
 
-verifyNotWritable(arrObj, "0");
-
-verifyEnumerable(arrObj, "0");
-
-verifyConfigurable(arrObj, "0");
+verifyProperty(arrObj, "0", {
+  value: undefined,
+  writable: false,
+  enumerable: true,
+  configurable: true,
+});
diff --git a/test/built-ins/Object/defineProperty/15.2.3.6-4-236.js b/test/built-ins/Object/defineProperty/15.2.3.6-4-236.js
index 3ca2886007..1dbb7839c9 100644
--- a/test/built-ins/Object/defineProperty/15.2.3.6-4-236.js
+++ b/test/built-ins/Object/defineProperty/15.2.3.6-4-236.js
@@ -20,10 +20,10 @@ Object.defineProperty(arrObj, "0", {
 Object.defineProperty(arrObj, "0", {
   configurable: false
 });
-verifyEqualTo(arrObj, "0", undefined);
 
-verifyNotWritable(arrObj, "0");
-
-verifyNotEnumerable(arrObj, "0");
-
-verifyNotConfigurable(arrObj, "0");
+verifyProperty(arrObj, "0", {
+  value: undefined,
+  writable: false,
+  enumerable: false,
+  configurable: false,
+});
diff --git a/test/built-ins/Object/defineProperty/15.2.3.6-4-237.js b/test/built-ins/Object/defineProperty/15.2.3.6-4-237.js
index bbcd444370..adc1e0fbbe 100644
--- a/test/built-ins/Object/defineProperty/15.2.3.6-4-237.js
+++ b/test/built-ins/Object/defineProperty/15.2.3.6-4-237.js
@@ -20,10 +20,10 @@ Object.defineProperty(arrObj, "0", {
 Object.defineProperty(arrObj, "0", {
   configurable: false
 });
-verifyEqualTo(arrObj, "0", undefined);
 
-verifyNotWritable(arrObj, "0");
-
-verifyNotEnumerable(arrObj, "0");
-
-verifyNotConfigurable(arrObj, "0");
+verifyProperty(arrObj, "0", {
+  value: undefined,
+  writable: false,
+  enumerable: false,
+  configurable: false,
+});
diff --git a/test/built-ins/Object/defineProperty/15.2.3.6-4-238.js b/test/built-ins/Object/defineProperty/15.2.3.6-4-238.js
index c68c3e635d..b479855fa2 100644
--- a/test/built-ins/Object/defineProperty/15.2.3.6-4-238.js
+++ b/test/built-ins/Object/defineProperty/15.2.3.6-4-238.js
@@ -27,18 +27,15 @@ try {
     configurable: true
   });
   throw new Test262Error("Expected an exception.");
-
 } catch (e) {
-  verifyEqualTo(arrObj, "1", 3);
-
-  verifyWritable(arrObj, "1");
-
-  verifyNotEnumerable(arrObj, "1");
-
-  verifyNotConfigurable(arrObj, "1");
-
   if (!(e instanceof TypeError)) {
     throw new Test262Error("Expected TypeError, got " + e);
   }
-
 }
+
+verifyProperty(arrObj, "1", {
+  value: 3,
+  writable: true,
+  enumerable: false,
+  configurable: false,
+});
diff --git a/test/built-ins/Object/defineProperty/15.2.3.6-4-239.js b/test/built-ins/Object/defineProperty/15.2.3.6-4-239.js
index 7421b5a81b..2be8486d23 100644
--- a/test/built-ins/Object/defineProperty/15.2.3.6-4-239.js
+++ b/test/built-ins/Object/defineProperty/15.2.3.6-4-239.js
@@ -29,18 +29,15 @@ try {
     enumerable: true
   });
   throw new Test262Error("Expected an exception.");
-
 } catch (e) {
-  verifyEqualTo(arrObj, "1", 3);
-
-  verifyWritable(arrObj, "1");
-
-  verifyNotEnumerable(arrObj, "1");
-
-  verifyNotConfigurable(arrObj, "1");
-
   if (!(e instanceof TypeError)) {
     throw new Test262Error("Expected TypeError, got " + e);
   }
-
 }
+
+verifyProperty(arrObj, "1", {
+  value: 3,
+  writable: true,
+  enumerable: false,
+  configurable: false,
+});
diff --git a/test/built-ins/Object/defineProperty/15.2.3.6-4-240.js b/test/built-ins/Object/defineProperty/15.2.3.6-4-240.js
index ffd8f4db3e..f66ce0790d 100644
--- a/test/built-ins/Object/defineProperty/15.2.3.6-4-240.js
+++ b/test/built-ins/Object/defineProperty/15.2.3.6-4-240.js
@@ -32,12 +32,12 @@ try {
 } catch (e) {
   verifyWritable(arrObj, "1", "setVerifyHelpProp");
 
-  verifyNotEnumerable(arrObj, "1");
-
-  verifyNotConfigurable(arrObj, "1");
-
   if (!(e instanceof TypeError)) {
     throw new Test262Error("Expected TypeError, got " + e);
   }
-
 }
+
+verifyProperty(arrObj, "1", {
+  enumerable: false,
+  configurable: false,
+});
diff --git a/test/built-ins/Object/defineProperty/15.2.3.6-4-241.js b/test/built-ins/Object/defineProperty/15.2.3.6-4-241.js
index 4b2b67198f..f6738617f4 100644
--- a/test/built-ins/Object/defineProperty/15.2.3.6-4-241.js
+++ b/test/built-ins/Object/defineProperty/15.2.3.6-4-241.js
@@ -24,18 +24,15 @@ try {
     set: function() {}
   });
   throw new Test262Error("Expected an exception.");
-
 } catch (e) {
-  verifyEqualTo(arrObj, "1", 3);
-
-  verifyNotWritable(arrObj, "1");
-
-  verifyNotEnumerable(arrObj, "1");
-
-  verifyNotConfigurable(arrObj, "1");
-
   if (!(e instanceof TypeError)) {
     throw new Test262Error("Expected TypeError, got " + e);
   }
-
 }
+
+verifyProperty(arrObj, "1", {
+  value: 3,
+  writable: false,
+  enumerable: false,
+  configurable: false,
+});
diff --git a/test/built-ins/Object/defineProperty/15.2.3.6-4-242-1.js b/test/built-ins/Object/defineProperty/15.2.3.6-4-242-1.js
index d0cd2bd479..e1d90951ba 100644
--- a/test/built-ins/Object/defineProperty/15.2.3.6-4-242-1.js
+++ b/test/built-ins/Object/defineProperty/15.2.3.6-4-242-1.js
@@ -20,10 +20,9 @@ Object.defineProperty(arrObj, "0", {
   enumerable: false
 });
 
-verifyEqualTo(arrObj, "0", 1001);
-
-verifyNotWritable(arrObj, "0");
-
-verifyNotEnumerable(arrObj, "0");
-
-verifyConfigurable(arrObj, "0");
+verifyProperty(arrObj, "0", {
+  value: 1001,
+  writable: false,
+  enumerable: false,
+  configurable: true,
+});
diff --git a/test/built-ins/Object/defineProperty/15.2.3.6-4-242.js b/test/built-ins/Object/defineProperty/15.2.3.6-4-242.js
index 862326c37e..6672f18dfe 100644
--- a/test/built-ins/Object/defineProperty/15.2.3.6-4-242.js
+++ b/test/built-ins/Object/defineProperty/15.2.3.6-4-242.js
@@ -24,6 +24,7 @@ Object.defineProperty(arrObj, "0", {
 
 verifyWritable(arrObj, "0", "setVerifyHelpProp");
 
-verifyEnumerable(arrObj, "0");
-
-verifyConfigurable(arrObj, "0");
+verifyProperty(arrObj, "0", {
+  enumerable: true,
+  configurable: true,
+});
diff --git a/test/built-ins/Object/defineProperty/15.2.3.6-4-243-1.js b/test/built-ins/Object/defineProperty/15.2.3.6-4-243-1.js
index bca8f06069..3df9099647 100644
--- a/test/built-ins/Object/defineProperty/15.2.3.6-4-243-1.js
+++ b/test/built-ins/Object/defineProperty/15.2.3.6-4-243-1.js
@@ -27,6 +27,7 @@ arrObj[1] = 4;
 
 verifyEqualTo(arrObj, "1", getFunc());
 
-verifyNotEnumerable(arrObj, "1");
-
-verifyConfigurable(arrObj, "1");
+verifyProperty(arrObj, "1", {
+  enumerable: false,
+  configurable: true,
+});
diff --git a/test/built-ins/Object/defineProperty/15.2.3.6-4-243-2.js b/test/built-ins/Object/defineProperty/15.2.3.6-4-243-2.js
index a94e6f615a..05a0aab2a0 100644
--- a/test/built-ins/Object/defineProperty/15.2.3.6-4-243-2.js
+++ b/test/built-ins/Object/defineProperty/15.2.3.6-4-243-2.js
@@ -28,6 +28,7 @@ assert.throws(TypeError, function() {
 });
 verifyEqualTo(arrObj, "1", getFunc());
 
-verifyNotEnumerable(arrObj, "1");
-
-verifyConfigurable(arrObj, "1");
+verifyProperty(arrObj, "1", {
+  enumerable: false,
+  configurable: true,
+});
diff --git a/test/built-ins/Object/defineProperty/15.2.3.6-4-243.js b/test/built-ins/Object/defineProperty/15.2.3.6-4-243.js
index 1c9e01206b..9296aa7acd 100644
--- a/test/built-ins/Object/defineProperty/15.2.3.6-4-243.js
+++ b/test/built-ins/Object/defineProperty/15.2.3.6-4-243.js
@@ -27,10 +27,9 @@ Object.defineProperty(arrObj, "1", {
   value: 12
 });
 
-verifyEqualTo(arrObj, "1", 12);
-
-verifyNotWritable(arrObj, "1");
-
-verifyNotEnumerable(arrObj, "1");
-
-verifyConfigurable(arrObj, "1");
+verifyProperty(arrObj, "1", {
+  value: 12,
+  writable: false,
+  enumerable: false,
+  configurable: true,
+});
diff --git a/test/built-ins/Object/defineProperty/15.2.3.6-4-244.js b/test/built-ins/Object/defineProperty/15.2.3.6-4-244.js
index d00495689a..9e4728946a 100644
--- a/test/built-ins/Object/defineProperty/15.2.3.6-4-244.js
+++ b/test/built-ins/Object/defineProperty/15.2.3.6-4-244.js
@@ -22,23 +22,19 @@ Object.defineProperty(arrObj, "1", {
 });
 
 try {
-
   Object.defineProperty(arrObj, "1", {
     writable: true
   });
   throw new Test262Error("Expected an exception.");
-
 } catch (e) {
-  verifyEqualTo(arrObj, "1", undefined);
-
-  verifyNotWritable(arrObj, "1");
-
-  verifyNotEnumerable(arrObj, "1");
-
-  verifyNotConfigurable(arrObj, "1");
-
   if (!(e instanceof TypeError)) {
     throw new Test262Error("Expected TypeError, got " + e);
   }
-
 }
+
+verifyProperty(arrObj, "1", {
+  value: undefined,
+  writable: false,
+  enumerable: false,
+  configurable: false,
+});
diff --git a/test/built-ins/Object/defineProperty/15.2.3.6-4-245.js b/test/built-ins/Object/defineProperty/15.2.3.6-4-245.js
index a6135654e3..cc99b02c41 100644
--- a/test/built-ins/Object/defineProperty/15.2.3.6-4-245.js
+++ b/test/built-ins/Object/defineProperty/15.2.3.6-4-245.js
@@ -29,16 +29,14 @@ try {
   });
   throw new Test262Error("Expected an exception.");
 } catch (e) {
-  verifyEqualTo(arrObj, "1", 3);
-
-  verifyNotWritable(arrObj, "1");
-
-  verifyNotEnumerable(arrObj, "1");
-
-  verifyNotConfigurable(arrObj, "1");
-
   if (!(e instanceof TypeError)) {
     throw new Test262Error("Expected TypeError, got " + e);
   }
-
 }
+
+verifyProperty(arrObj, "1", {
+  value: 3,
+  writable: false,
+  enumerable: false,
+  configurable: false,
+});
diff --git a/test/built-ins/Object/defineProperty/15.2.3.6-4-246.js b/test/built-ins/Object/defineProperty/15.2.3.6-4-246.js
index a9108891fd..af3faa9bba 100644
--- a/test/built-ins/Object/defineProperty/15.2.3.6-4-246.js
+++ b/test/built-ins/Object/defineProperty/15.2.3.6-4-246.js
@@ -18,7 +18,6 @@ var arrObj = [];
 
 Object.defineProperty(arrObj, "1", {
   value: -0
-
 });
 
 try {
@@ -27,16 +26,14 @@ try {
   });
   throw new Test262Error("Expected an exception.");
 } catch (e) {
-  verifyEqualTo(arrObj, "1", -0);
-
-  verifyNotWritable(arrObj, "1");
-
-  verifyNotEnumerable(arrObj, "1");
-
-  verifyNotConfigurable(arrObj, "1");
-
   if (!(e instanceof TypeError)) {
     throw new Test262Error("Expected TypeError, got " + e);
   }
-
 }
+
+verifyProperty(arrObj, "1", {
+  value: -0,
+  writable: false,
+  enumerable: false,
+  configurable: false,
+});
diff --git a/test/built-ins/Object/defineProperty/15.2.3.6-4-247.js b/test/built-ins/Object/defineProperty/15.2.3.6-4-247.js
index 15c3378d42..207ce166ee 100644
--- a/test/built-ins/Object/defineProperty/15.2.3.6-4-247.js
+++ b/test/built-ins/Object/defineProperty/15.2.3.6-4-247.js
@@ -27,16 +27,14 @@ try {
   });
   throw new Test262Error("Expected an exception.");
 } catch (e) {
-  verifyEqualTo(arrObj, "1", +0);
-
-  verifyNotWritable(arrObj, "1");
-
-  verifyNotEnumerable(arrObj, "1");
-
-  verifyNotConfigurable(arrObj, "1");
-
   if (!(e instanceof TypeError)) {
     throw new Test262Error("Expected TypeError, got " + e);
   }
-
 }
+
+verifyProperty(arrObj, "1", {
+  value: +0,
+  writable: false,
+  enumerable: false,
+  configurable: false,
+});
diff --git a/test/built-ins/Object/defineProperty/15.2.3.6-4-248.js b/test/built-ins/Object/defineProperty/15.2.3.6-4-248.js
index cb168bfe8f..4667c5edd8 100644
--- a/test/built-ins/Object/defineProperty/15.2.3.6-4-248.js
+++ b/test/built-ins/Object/defineProperty/15.2.3.6-4-248.js
@@ -26,16 +26,14 @@ try {
   });
   throw new Test262Error("Expected an exception.");
 } catch (e) {
-  verifyEqualTo(arrObj, "1", 12);
-
-  verifyNotWritable(arrObj, "1");
-
-  verifyNotEnumerable(arrObj, "1");
-
-  verifyNotConfigurable(arrObj, "1");
-
   if (!(e instanceof TypeError)) {
     throw new Test262Error("Expected TypeError, got " + e);
   }
-
 }
+
+verifyProperty(arrObj, "1", {
+  value: 12,
+  writable: false,
+  enumerable: false,
+  configurable: false,
+});
diff --git a/test/built-ins/Object/defineProperty/15.2.3.6-4-249.js b/test/built-ins/Object/defineProperty/15.2.3.6-4-249.js
index a5c3fbeacd..d8e4624d24 100644
--- a/test/built-ins/Object/defineProperty/15.2.3.6-4-249.js
+++ b/test/built-ins/Object/defineProperty/15.2.3.6-4-249.js
@@ -26,16 +26,14 @@ try {
   });
   throw new Test262Error("Expected an exception.");
 } catch (e) {
-  verifyEqualTo(arrObj, "1", "abc");
-
-  verifyNotWritable(arrObj, "1");
-
-  verifyNotEnumerable(arrObj, "1");
-
-  verifyNotConfigurable(arrObj, "1");
-
   if (!(e instanceof TypeError)) {
     throw new Test262Error("Expected TypeError, got " + e);
   }
-
 }
+
+verifyProperty(arrObj, "1", {
+  value: "abc",
+  writable: false,
+  enumerable: false,
+  configurable: false,
+});
diff --git a/test/built-ins/Object/defineProperty/15.2.3.6-4-250.js b/test/built-ins/Object/defineProperty/15.2.3.6-4-250.js
index e3aed4b274..888a0d3f65 100644
--- a/test/built-ins/Object/defineProperty/15.2.3.6-4-250.js
+++ b/test/built-ins/Object/defineProperty/15.2.3.6-4-250.js
@@ -26,16 +26,14 @@ try {
   });
   throw new Test262Error("Expected an exception.");
 } catch (e) {
-  verifyEqualTo(arrObj, "1", false);
-
-  verifyNotWritable(arrObj, "1");
-
-  verifyNotEnumerable(arrObj, "1");
-
-  verifyNotConfigurable(arrObj, "1");
-
   if (!(e instanceof TypeError)) {
     throw new Test262Error("Expected TypeError, got " + e);
   }
-
 }
+
+verifyProperty(arrObj, "1", {
+  value: false,
+  writable: false,
+  enumerable: false,
+  configurable: false,
+});
diff --git a/test/built-ins/Object/defineProperty/15.2.3.6-4-251.js b/test/built-ins/Object/defineProperty/15.2.3.6-4-251.js
index 0524d0a4e9..69aab46a6f 100644
--- a/test/built-ins/Object/defineProperty/15.2.3.6-4-251.js
+++ b/test/built-ins/Object/defineProperty/15.2.3.6-4-251.js
@@ -29,16 +29,14 @@ try {
   });
   throw new Test262Error("Expected an exception.");
 } catch (e) {
-  verifyEqualTo(arrObj, "1", obj);
-
-  verifyNotWritable(arrObj, "1");
-
-  verifyNotEnumerable(arrObj, "1");
-
-  verifyNotConfigurable(arrObj, "1");
-
   if (!(e instanceof TypeError)) {
     throw new Test262Error("Expected TypeError, got " + e);
   }
-
 }
+
+verifyProperty(arrObj, "1", {
+  value: obj,
+  writable: false,
+  enumerable: false,
+  configurable: false,
+});
diff --git a/test/built-ins/Object/defineProperty/15.2.3.6-4-252.js b/test/built-ins/Object/defineProperty/15.2.3.6-4-252.js
index 354a5bbcbf..4f5a34cd07 100644
--- a/test/built-ins/Object/defineProperty/15.2.3.6-4-252.js
+++ b/test/built-ins/Object/defineProperty/15.2.3.6-4-252.js
@@ -32,12 +32,12 @@ try {
 } catch (e) {
   verifyWritable(arrObj, "1", "setVerifyHelpProp");
 
-  verifyNotEnumerable(arrObj, "1");
-
-  verifyNotConfigurable(arrObj, "1");
-
   if (!(e instanceof TypeError)) {
     throw new Test262Error("Expected TypeError, got " + e);
   }
-
 }
+
+verifyProperty(arrObj, "1", {
+  enumerable: false,
+  configurable: false,
+});
diff --git a/test/built-ins/Object/defineProperty/15.2.3.6-4-253.js b/test/built-ins/Object/defineProperty/15.2.3.6-4-253.js
index bc278d21eb..f0cce09f46 100644
--- a/test/built-ins/Object/defineProperty/15.2.3.6-4-253.js
+++ b/test/built-ins/Object/defineProperty/15.2.3.6-4-253.js
@@ -32,12 +32,12 @@ try {
 } catch (e) {
   verifyEqualTo(arrObj, "1", getFunc());
 
-  verifyNotEnumerable(arrObj, "1");
-
-  verifyNotConfigurable(arrObj, "1");
-
   if (!(e instanceof TypeError)) {
     throw new Test262Error("Expected TypeError, got " + e);
   }
-
 }
+
+verifyProperty(arrObj, "1", {
+  enumerable: false,
+  configurable: false,
+});
diff --git a/test/built-ins/Object/defineProperty/15.2.3.6-4-254.js b/test/built-ins/Object/defineProperty/15.2.3.6-4-254.js
index 233b2deac5..fbb16aeadd 100644
--- a/test/built-ins/Object/defineProperty/15.2.3.6-4-254.js
+++ b/test/built-ins/Object/defineProperty/15.2.3.6-4-254.js
@@ -29,5 +29,7 @@ var desc = Object.getOwnPropertyDescriptor(arrObj, "1");
 assert(desc.hasOwnProperty("get") && typeof desc.get === "undefined");
 assert(desc.hasOwnProperty("set") && typeof desc.set === "undefined");
 
-verifyNotEnumerable(arrObj, "1");
-verifyNotConfigurable(arrObj, "1");
+verifyProperty(arrObj, "1", {
+  enumerable: false,
+  configurable: false,
+});
diff --git a/test/built-ins/Object/defineProperty/15.2.3.6-4-255.js b/test/built-ins/Object/defineProperty/15.2.3.6-4-255.js
index 2ea48e0801..0eed87045f 100644
--- a/test/built-ins/Object/defineProperty/15.2.3.6-4-255.js
+++ b/test/built-ins/Object/defineProperty/15.2.3.6-4-255.js
@@ -40,7 +40,9 @@ try {
   assert(arrObj[1] === getFunc());
 
   assert(desc.hasOwnProperty("set") && typeof desc.set === "undefined");
-
-  verifyNotEnumerable(arrObj, "1");
-  verifyNotConfigurable(arrObj, "1");
 }
+
+verifyProperty(arrObj, "1", {
+  enumerable: false,
+  configurable: false,
+});
diff --git a/test/built-ins/Object/defineProperty/15.2.3.6-4-256.js b/test/built-ins/Object/defineProperty/15.2.3.6-4-256.js
index 65eaf21ef6..fba4811333 100644
--- a/test/built-ins/Object/defineProperty/15.2.3.6-4-256.js
+++ b/test/built-ins/Object/defineProperty/15.2.3.6-4-256.js
@@ -38,6 +38,8 @@ try {
   assert(desc.hasOwnProperty("set") && typeof desc.set === "undefined");
 
   verifyNotWritable(arrObj, "1");
-
-  verifyNotConfigurable(arrObj, "1");
 }
+
+verifyProperty(arrObj, "1", {
+  configurable: false,
+});
diff --git a/test/built-ins/Object/defineProperty/15.2.3.6-4-257.js b/test/built-ins/Object/defineProperty/15.2.3.6-4-257.js
index d8563de260..92b39bcc92 100644
--- a/test/built-ins/Object/defineProperty/15.2.3.6-4-257.js
+++ b/test/built-ins/Object/defineProperty/15.2.3.6-4-257.js
@@ -31,6 +31,7 @@ Object.defineProperty(arrObj, "1", {
 
 verifyWritable(arrObj, "1", "setVerifyHelpProp");
 
-verifyNotEnumerable(arrObj, "1");
-
-verifyNotConfigurable(arrObj, "1");
+verifyProperty(arrObj, "1", {
+  enumerable: false,
+  configurable: false,
+});
diff --git a/test/built-ins/Object/defineProperty/15.2.3.6-4-258.js b/test/built-ins/Object/defineProperty/15.2.3.6-4-258.js
index fc823796a5..c79effc348 100644
--- a/test/built-ins/Object/defineProperty/15.2.3.6-4-258.js
+++ b/test/built-ins/Object/defineProperty/15.2.3.6-4-258.js
@@ -17,10 +17,10 @@ var arrObj = [100];
 Object.defineProperty(arrObj, "0", {
   value: 200
 });
-verifyEqualTo(arrObj, "0", 200);
 
-verifyWritable(arrObj, "0");
-
-verifyEnumerable(arrObj, "0");
-
-verifyConfigurable(arrObj, "0");
+verifyProperty(arrObj, "0", {
+  value: 200,
+  writable: true,
+  enumerable: true,
+  configurable: true,
+});
diff --git a/test/built-ins/Object/defineProperty/15.2.3.6-4-259.js b/test/built-ins/Object/defineProperty/15.2.3.6-4-259.js
index 11d17e6726..ed2d95707f 100644
--- a/test/built-ins/Object/defineProperty/15.2.3.6-4-259.js
+++ b/test/built-ins/Object/defineProperty/15.2.3.6-4-259.js
@@ -17,10 +17,10 @@ var arrObj = [100];
 Object.defineProperty(arrObj, "0", {
   value: undefined
 });
-verifyEqualTo(arrObj, "0", undefined);
 
-verifyWritable(arrObj, "0");
-
-verifyEnumerable(arrObj, "0");
-
-verifyConfigurable(arrObj, "0");
+verifyProperty(arrObj, "0", {
+  value: undefined,
+  writable: true,
+  enumerable: true,
+  configurable: true,
+});
diff --git a/test/built-ins/Object/defineProperty/15.2.3.6-4-260.js b/test/built-ins/Object/defineProperty/15.2.3.6-4-260.js
index 81452c8a3c..5a7648b50c 100644
--- a/test/built-ins/Object/defineProperty/15.2.3.6-4-260.js
+++ b/test/built-ins/Object/defineProperty/15.2.3.6-4-260.js
@@ -16,10 +16,10 @@ var arrObj = [undefined];
 Object.defineProperty(arrObj, "0", {
   value: 100
 });
-verifyEqualTo(arrObj, "0", 100);
 
-verifyWritable(arrObj, "0");
-
-verifyEnumerable(arrObj, "0");
-
-verifyConfigurable(arrObj, "0");
+verifyProperty(arrObj, "0", {
+  value: 100,
+  writable: true,
+  enumerable: true,
+  configurable: true,
+});
diff --git a/test/built-ins/Object/defineProperty/15.2.3.6-4-261.js b/test/built-ins/Object/defineProperty/15.2.3.6-4-261.js
index 00983ec92c..624e732580 100644
--- a/test/built-ins/Object/defineProperty/15.2.3.6-4-261.js
+++ b/test/built-ins/Object/defineProperty/15.2.3.6-4-261.js
@@ -16,10 +16,10 @@ var arrObj = [100];
 Object.defineProperty(arrObj, "0", {
   writable: false
 });
-verifyEqualTo(arrObj, "0", 100);
 
-verifyNotWritable(arrObj, "0");
-
-verifyEnumerable(arrObj, "0");
-
-verifyConfigurable(arrObj, "0");
+verifyProperty(arrObj, "0", {
+  value: 100,
+  writable: false,
+  enumerable: true,
+  configurable: true,
+});
diff --git a/test/built-ins/Object/defineProperty/15.2.3.6-4-262.js b/test/built-ins/Object/defineProperty/15.2.3.6-4-262.js
index 3ab254e83f..ea0716bd13 100644
--- a/test/built-ins/Object/defineProperty/15.2.3.6-4-262.js
+++ b/test/built-ins/Object/defineProperty/15.2.3.6-4-262.js
@@ -17,10 +17,10 @@ var arrObj = [100];
 Object.defineProperty(arrObj, "0", {
   enumerable: false
 });
-verifyEqualTo(arrObj, "0", 100);
 
-verifyWritable(arrObj, "0");
-
-verifyNotEnumerable(arrObj, "0");
-
-verifyConfigurable(arrObj, "0");
+verifyProperty(arrObj, "0", {
+  value: 100,
+  writable: true,
+  enumerable: false,
+  configurable: true,
+});
diff --git a/test/built-ins/Object/defineProperty/15.2.3.6-4-263.js b/test/built-ins/Object/defineProperty/15.2.3.6-4-263.js
index 383acb95b1..85ca749293 100644
--- a/test/built-ins/Object/defineProperty/15.2.3.6-4-263.js
+++ b/test/built-ins/Object/defineProperty/15.2.3.6-4-263.js
@@ -17,10 +17,10 @@ var arrObj = [100];
 Object.defineProperty(arrObj, "0", {
   configurable: false
 });
-verifyEqualTo(arrObj, "0", 100);
 
-verifyWritable(arrObj, "0");
-
-verifyEnumerable(arrObj, "0");
-
-verifyNotConfigurable(arrObj, "0");
+verifyProperty(arrObj, "0", {
+  value: 100,
+  writable: true,
+  enumerable: true,
+  configurable: false,
+});
diff --git a/test/built-ins/Object/defineProperty/15.2.3.6-4-264.js b/test/built-ins/Object/defineProperty/15.2.3.6-4-264.js
index cff7a2c800..182b5262ed 100644
--- a/test/built-ins/Object/defineProperty/15.2.3.6-4-264.js
+++ b/test/built-ins/Object/defineProperty/15.2.3.6-4-264.js
@@ -18,10 +18,10 @@ Object.defineProperty(arrObj, "0", {
   enumerable: false,
   configurable: false
 });
-verifyEqualTo(arrObj, "0", 100);
 
-verifyNotWritable(arrObj, "0");
-
-verifyNotEnumerable(arrObj, "0");
-
-verifyNotConfigurable(arrObj, "0");
+verifyProperty(arrObj, "0", {
+  value: 100,
+  writable: false,
+  enumerable: false,
+  configurable: false,
+});
diff --git a/test/built-ins/Object/defineProperty/15.2.3.6-4-265.js b/test/built-ins/Object/defineProperty/15.2.3.6-4-265.js
index e0c5c88cc6..88a28da53b 100644
--- a/test/built-ins/Object/defineProperty/15.2.3.6-4-265.js
+++ b/test/built-ins/Object/defineProperty/15.2.3.6-4-265.js
@@ -28,6 +28,7 @@ Object.defineProperty(arrObj, "0", {
 });
 verifyEqualTo(arrObj, "0", getFunc());
 
-verifyNotEnumerable(arrObj, "0");
-
-verifyConfigurable(arrObj, "0");
+verifyProperty(arrObj, "0", {
+  enumerable: false,
+  configurable: true,
+});
diff --git a/test/built-ins/Object/defineProperty/15.2.3.6-4-266.js b/test/built-ins/Object/defineProperty/15.2.3.6-4-266.js
index 404c0b27bd..323e64aca8 100644
--- a/test/built-ins/Object/defineProperty/15.2.3.6-4-266.js
+++ b/test/built-ins/Object/defineProperty/15.2.3.6-4-266.js
@@ -26,6 +26,8 @@ Object.defineProperty(arrObj, "0", {
 Object.defineProperty(arrObj, "0", {
   get: undefined
 });
-verifyNotEnumerable(arrObj, "0");
 
-verifyConfigurable(arrObj, "0");
+verifyProperty(arrObj, "0", {
+  enumerable: false,
+  configurable: true,
+});
diff --git a/test/built-ins/Object/defineProperty/15.2.3.6-4-267.js b/test/built-ins/Object/defineProperty/15.2.3.6-4-267.js
index 0b277d2b35..bc69b47bc8 100644
--- a/test/built-ins/Object/defineProperty/15.2.3.6-4-267.js
+++ b/test/built-ins/Object/defineProperty/15.2.3.6-4-267.js
@@ -27,6 +27,7 @@ Object.defineProperty(arrObj, "0", {
 });
 verifyEqualTo(arrObj, "0", getFunc());
 
-verifyNotEnumerable(arrObj, "0");
-
-verifyConfigurable(arrObj, "0");
+verifyProperty(arrObj, "0", {
+  enumerable: false,
+  configurable: true,
+});
diff --git a/test/built-ins/Object/defineProperty/15.2.3.6-4-268.js b/test/built-ins/Object/defineProperty/15.2.3.6-4-268.js
index 77eb277654..ddc3f1d162 100644
--- a/test/built-ins/Object/defineProperty/15.2.3.6-4-268.js
+++ b/test/built-ins/Object/defineProperty/15.2.3.6-4-268.js
@@ -27,6 +27,7 @@ Object.defineProperty(arrObj, "0", {
 });
 verifyWritable(arrObj, "0", "setVerifyHelpProp");
 
-verifyNotEnumerable(arrObj, "0");
-
-verifyConfigurable(arrObj, "0");
+verifyProperty(arrObj, "0", {
+  enumerable: false,
+  configurable: true,
+});
diff --git a/test/built-ins/Object/defineProperty/15.2.3.6-4-269.js b/test/built-ins/Object/defineProperty/15.2.3.6-4-269.js
index d745c8ec7a..1ba91fa63d 100644
--- a/test/built-ins/Object/defineProperty/15.2.3.6-4-269.js
+++ b/test/built-ins/Object/defineProperty/15.2.3.6-4-269.js
@@ -22,6 +22,8 @@ Object.defineProperty(arrObj, "0", {
 Object.defineProperty(arrObj, "0", {
   set: undefined
 });
-verifyNotEnumerable(arrObj, "0");
 
-verifyConfigurable(arrObj, "0");
+verifyProperty(arrObj, "0", {
+  enumerable: false,
+  configurable: true,
+});
diff --git a/test/built-ins/Object/defineProperty/15.2.3.6-4-270.js b/test/built-ins/Object/defineProperty/15.2.3.6-4-270.js
index 2139b32e7b..8dd33da58f 100644
--- a/test/built-ins/Object/defineProperty/15.2.3.6-4-270.js
+++ b/test/built-ins/Object/defineProperty/15.2.3.6-4-270.js
@@ -28,6 +28,7 @@ Object.defineProperty(arrObj, "0", {
 });
 verifyWritable(arrObj, "0", "setVerifyHelpProp");
 
-verifyNotEnumerable(arrObj, "0");
-
-verifyConfigurable(arrObj, "0");
+verifyProperty(arrObj, "0", {
+  enumerable: false,
+  configurable: true,
+});
diff --git a/test/built-ins/Object/defineProperty/15.2.3.6-4-271.js b/test/built-ins/Object/defineProperty/15.2.3.6-4-271.js
index b6e062cfa9..0a8f8a7685 100644
--- a/test/built-ins/Object/defineProperty/15.2.3.6-4-271.js
+++ b/test/built-ins/Object/defineProperty/15.2.3.6-4-271.js
@@ -29,6 +29,7 @@ Object.defineProperty(arrObj, "0", {
 });
 verifyWritable(arrObj, "0", "setVerifyHelpProp");
 
-verifyNotEnumerable(arrObj, "0");
-
-verifyConfigurable(arrObj, "0");
+verifyProperty(arrObj, "0", {
+  enumerable: false,
+  configurable: true,
+});
diff --git a/test/built-ins/Object/defineProperty/15.2.3.6-4-272.js b/test/built-ins/Object/defineProperty/15.2.3.6-4-272.js
index 85c7d938e5..700a6c61fb 100644
--- a/test/built-ins/Object/defineProperty/15.2.3.6-4-272.js
+++ b/test/built-ins/Object/defineProperty/15.2.3.6-4-272.js
@@ -28,6 +28,7 @@ Object.defineProperty(arrObj, "0", {
 });
 verifyWritable(arrObj, "0", "setVerifyHelpProp");
 
-verifyNotEnumerable(arrObj, "0");
-
-verifyNotConfigurable(arrObj, "0");
+verifyProperty(arrObj, "0", {
+  enumerable: false,
+  configurable: false,
+});
diff --git a/test/built-ins/Object/defineProperty/15.2.3.6-4-273.js b/test/built-ins/Object/defineProperty/15.2.3.6-4-273.js
index 96cd481ae2..40f6f94744 100644
--- a/test/built-ins/Object/defineProperty/15.2.3.6-4-273.js
+++ b/test/built-ins/Object/defineProperty/15.2.3.6-4-273.js
@@ -39,6 +39,7 @@ verifyEqualTo(arrObj, "1", getFunc());
 
 verifyWritable(arrObj, "1", "setVerifyHelpProp");
 
-verifyNotEnumerable(arrObj, "1");
-
-verifyNotConfigurable(arrObj, "1");
+verifyProperty(arrObj, "1", {
+  enumerable: false,
+  configurable: false,
+});
diff --git a/test/built-ins/Object/defineProperty/15.2.3.6-4-277.js b/test/built-ins/Object/defineProperty/15.2.3.6-4-277.js
index bd2d31b641..c70e28c138 100644
--- a/test/built-ins/Object/defineProperty/15.2.3.6-4-277.js
+++ b/test/built-ins/Object/defineProperty/15.2.3.6-4-277.js
@@ -21,10 +21,9 @@ Object.defineProperty(arrObj, "property", {
   configurable: true
 });
 
-verifyEqualTo(arrObj, "property", 12);
-
-verifyWritable(arrObj, "property");
-
-verifyEnumerable(arrObj, "property");
-
-verifyConfigurable(arrObj, "property");
+verifyProperty(arrObj, "property", {
+  value: 12,
+  writable: true,
+  enumerable: true,
+  configurable: true,
+});
diff --git a/test/built-ins/Object/defineProperty/15.2.3.6-4-278.js b/test/built-ins/Object/defineProperty/15.2.3.6-4-278.js
index 1a2a67150c..fca26b9bbc 100644
--- a/test/built-ins/Object/defineProperty/15.2.3.6-4-278.js
+++ b/test/built-ins/Object/defineProperty/15.2.3.6-4-278.js
@@ -32,6 +32,7 @@ verifyEqualTo(arrObj, "property", getFunc());
 
 verifyWritable(arrObj, "property", "setVerifyHelpProp");
 
-verifyEnumerable(arrObj, "property");
-
-verifyConfigurable(arrObj, "property");
+verifyProperty(arrObj, "property", {
+  enumerable: true,
+  configurable: true,
+});
diff --git a/test/built-ins/Object/defineProperty/15.2.3.6-4-279.js b/test/built-ins/Object/defineProperty/15.2.3.6-4-279.js
index cc89be6860..1e4bcca0ff 100644
--- a/test/built-ins/Object/defineProperty/15.2.3.6-4-279.js
+++ b/test/built-ins/Object/defineProperty/15.2.3.6-4-279.js
@@ -38,6 +38,7 @@ verifyEqualTo(arrObj, "property", getFunc());
 
 verifyWritable(arrObj, "property", "setVerifyHelpProp");
 
-verifyNotEnumerable(arrObj, "property");
-
-verifyNotConfigurable(arrObj, "property");
+verifyProperty(arrObj, "property", {
+  enumerable: false,
+  configurable: false,
+});
diff --git a/test/built-ins/Object/defineProperty/15.2.3.6-4-280.js b/test/built-ins/Object/defineProperty/15.2.3.6-4-280.js
index b6001dca17..ddd3b94e56 100644
--- a/test/built-ins/Object/defineProperty/15.2.3.6-4-280.js
+++ b/test/built-ins/Object/defineProperty/15.2.3.6-4-280.js
@@ -21,10 +21,9 @@ Object.defineProperty(arrObj, "property", {
   configurable: false
 });
 
-verifyEqualTo(arrObj, "property", 12);
-
-verifyNotWritable(arrObj, "property");
-
-verifyNotEnumerable(arrObj, "property");
-
-verifyNotConfigurable(arrObj, "property");
+verifyProperty(arrObj, "property", {
+  value: 12,
+  writable: false,
+  enumerable: false,
+  configurable: false,
+});
diff --git a/test/built-ins/Object/defineProperty/15.2.3.6-4-281.js b/test/built-ins/Object/defineProperty/15.2.3.6-4-281.js
index 7e6fd7e763..8b6bee9529 100644
--- a/test/built-ins/Object/defineProperty/15.2.3.6-4-281.js
+++ b/test/built-ins/Object/defineProperty/15.2.3.6-4-281.js
@@ -23,16 +23,14 @@ try {
   });
   throw new Test262Error("Expected an exception.");
 } catch (e) {
-  verifyEqualTo(arrObj, "property", 12);
-
-  verifyNotWritable(arrObj, "property");
-
-  verifyNotEnumerable(arrObj, "property");
-
-  verifyNotConfigurable(arrObj, "property");
-
   if (!(e instanceof TypeError)) {
     throw new Test262Error("Expected TypeError, got " + e);
   }
-
 }
+
+verifyProperty(arrObj, "property", {
+  value: 12,
+  writable: false,
+  enumerable: false,
+  configurable: false,
+});
diff --git a/test/built-ins/Object/defineProperty/15.2.3.6-4-282.js b/test/built-ins/Object/defineProperty/15.2.3.6-4-282.js
index fc13067f13..077e99caf0 100644
--- a/test/built-ins/Object/defineProperty/15.2.3.6-4-282.js
+++ b/test/built-ins/Object/defineProperty/15.2.3.6-4-282.js
@@ -23,16 +23,14 @@ try {
   });
   throw new Test262Error("Expected an exception.");
 } catch (e) {
-  verifyEqualTo(arrObj, "property", undefined);
-
-  verifyNotWritable(arrObj, "property");
-
-  verifyNotEnumerable(arrObj, "property");
-
-  verifyNotConfigurable(arrObj, "property");
-
   if (!(e instanceof TypeError)) {
     throw new Test262Error("Expected TypeError, got " + e);
   }
-
 }
+
+verifyProperty(arrObj, "property", {
+  value: undefined,
+  writable: false,
+  enumerable: false,
+  configurable: false,
+});
diff --git a/test/built-ins/Object/defineProperty/15.2.3.6-4-283.js b/test/built-ins/Object/defineProperty/15.2.3.6-4-283.js
index dc04dd3c51..a610b2ee12 100644
--- a/test/built-ins/Object/defineProperty/15.2.3.6-4-283.js
+++ b/test/built-ins/Object/defineProperty/15.2.3.6-4-283.js
@@ -23,16 +23,14 @@ try {
   });
   throw new Test262Error("Expected an exception.");
 } catch (e) {
-  verifyEqualTo(arrObj, "property", 12);
-
-  verifyNotWritable(arrObj, "property");
-
-  verifyNotEnumerable(arrObj, "property");
-
-  verifyNotConfigurable(arrObj, "property");
-
   if (!(e instanceof TypeError)) {
     throw new Test262Error("Expected TypeError, got " + e);
   }
-
 }
+
+verifyProperty(arrObj, "property", {
+  value: 12,
+  writable: false,
+  enumerable: false,
+  configurable: false,
+});
diff --git a/test/built-ins/Object/defineProperty/15.2.3.6-4-284.js b/test/built-ins/Object/defineProperty/15.2.3.6-4-284.js
index 9fbead3859..911acf3fd8 100644
--- a/test/built-ins/Object/defineProperty/15.2.3.6-4-284.js
+++ b/test/built-ins/Object/defineProperty/15.2.3.6-4-284.js
@@ -23,16 +23,14 @@ try {
   });
   throw new Test262Error("Expected an exception.");
 } catch (e) {
-  verifyEqualTo(arrObj, "property", 12);
-
-  verifyNotWritable(arrObj, "property");
-
-  verifyNotEnumerable(arrObj, "property");
-
-  verifyNotConfigurable(arrObj, "property");
-
   if (!(e instanceof TypeError)) {
     throw new Test262Error("Expected TypeError, got " + e);
   }
-
 }
+
+verifyProperty(arrObj, "property", {
+  value: 12,
+  writable: false,
+  enumerable: false,
+  configurable: false,
+});
diff --git a/test/built-ins/Object/defineProperty/15.2.3.6-4-285.js b/test/built-ins/Object/defineProperty/15.2.3.6-4-285.js
index b3c187de14..773d6052f1 100644
--- a/test/built-ins/Object/defineProperty/15.2.3.6-4-285.js
+++ b/test/built-ins/Object/defineProperty/15.2.3.6-4-285.js
@@ -37,12 +37,12 @@ try {
 
   verifyWritable(arrObj, "property", "setVerifyHelpProp");
 
-  verifyNotEnumerable(arrObj, "property");
-
-  verifyNotConfigurable(arrObj, "property");
-
   if (!(e instanceof TypeError)) {
     throw new Test262Error("Expected TypeError, got " + e);
   }
-
 }
+
+verifyProperty(arrObj, "property", {
+  enumerable: false,
+  configurable: false,
+});
diff --git a/test/built-ins/Object/defineProperty/15.2.3.6-4-286.js b/test/built-ins/Object/defineProperty/15.2.3.6-4-286.js
index ed8430424f..b27aa017ce 100644
--- a/test/built-ins/Object/defineProperty/15.2.3.6-4-286.js
+++ b/test/built-ins/Object/defineProperty/15.2.3.6-4-286.js
@@ -28,12 +28,12 @@ try {
 } catch (e) {
   verifyWritable(arrObj, "property", "setVerifyHelpProp");
 
-  verifyNotEnumerable(arrObj, "property");
-
-  verifyNotConfigurable(arrObj, "property");
-
   if (!(e instanceof TypeError)) {
     throw new Test262Error("Expected TypeError, got " + e);
   }
-
 }
+
+verifyProperty(arrObj, "property", {
+  enumerable: false,
+  configurable: false,
+});
diff --git a/test/built-ins/Object/defineProperty/15.2.3.6-4-287.js b/test/built-ins/Object/defineProperty/15.2.3.6-4-287.js
index 34f2595375..91471de0ff 100644
--- a/test/built-ins/Object/defineProperty/15.2.3.6-4-287.js
+++ b/test/built-ins/Object/defineProperty/15.2.3.6-4-287.js
@@ -29,12 +29,12 @@ try {
 } catch (e) {
   verifyWritable(arrObj, "property", "setVerifyHelpProp");
 
-  verifyNotEnumerable(arrObj, "property");
-
-  verifyNotConfigurable(arrObj, "property");
-
   if (!(e instanceof TypeError)) {
     throw new Test262Error("Expected TypeError, got " + e);
   }
-
 }
+
+verifyProperty(arrObj, "property", {
+  enumerable: false,
+  configurable: false,
+});
diff --git a/test/built-ins/Object/defineProperty/15.2.3.6-4-288.js b/test/built-ins/Object/defineProperty/15.2.3.6-4-288.js
index e196cf7581..58b5947de7 100644
--- a/test/built-ins/Object/defineProperty/15.2.3.6-4-288.js
+++ b/test/built-ins/Object/defineProperty/15.2.3.6-4-288.js
@@ -29,12 +29,12 @@ try {
 } catch (e) {
   verifyWritable(arrObj, "property", "setVerifyHelpProp");
 
-  verifyNotEnumerable(arrObj, "property");
-
-  verifyNotConfigurable(arrObj, "property");
-
   if (!(e instanceof TypeError)) {
     throw new Test262Error("Expected TypeError, got " + e);
   }
-
 }
+
+verifyProperty(arrObj, "property", {
+  enumerable: false,
+  configurable: false,
+});
diff --git a/test/built-ins/Object/defineProperty/15.2.3.6-4-289-1.js b/test/built-ins/Object/defineProperty/15.2.3.6-4-289-1.js
index 5062611af0..6784c6d779 100644
--- a/test/built-ins/Object/defineProperty/15.2.3.6-4-289-1.js
+++ b/test/built-ins/Object/defineProperty/15.2.3.6-4-289-1.js
@@ -28,11 +28,10 @@ includes: [propertyHelper.js]
     throw new Test262Error("Expected a === 0, actually " + a);
   }
 
-  verifyEqualTo(arguments, "0", 10);
-
-  verifyWritable(arguments, "0");
-
-  verifyEnumerable(arguments, "0");
-
-  verifyConfigurable(arguments, "0");
+  verifyProperty(arguments, "0", {
+    value: 10,
+    writable: true,
+    enumerable: true,
+    configurable: true,
+  });
 }(0, 1, 2));
diff --git a/test/built-ins/Object/defineProperty/15.2.3.6-4-289.js b/test/built-ins/Object/defineProperty/15.2.3.6-4-289.js
index feef9e44ea..99c076e413 100644
--- a/test/built-ins/Object/defineProperty/15.2.3.6-4-289.js
+++ b/test/built-ins/Object/defineProperty/15.2.3.6-4-289.js
@@ -19,11 +19,11 @@ includes: [propertyHelper.js]
     enumerable: true,
     configurable: true
   });
-  verifyEqualTo(arguments, "0", 10);
 
-  verifyWritable(arguments, "0");
-
-  verifyEnumerable(arguments, "0");
-
-  verifyConfigurable(arguments, "0");
+  verifyProperty(arguments, "0", {
+    value: 10,
+    writable: true,
+    enumerable: true,
+    configurable: true,
+  });
 }(0, 1, 2));
diff --git a/test/built-ins/Object/defineProperty/15.2.3.6-4-290-1.js b/test/built-ins/Object/defineProperty/15.2.3.6-4-290-1.js
index 99ff4e802c..98ea2718c0 100644
--- a/test/built-ins/Object/defineProperty/15.2.3.6-4-290-1.js
+++ b/test/built-ins/Object/defineProperty/15.2.3.6-4-290-1.js
@@ -37,7 +37,8 @@ includes: [propertyHelper.js]
 
   verifyWritable(arguments, "0", "setVerifyHelpProp");
 
-  verifyEnumerable(arguments, "0");
-
-  verifyConfigurable(arguments, "0");
+  verifyProperty(arguments, "0", {
+    enumerable: true,
+    configurable: true,
+  });
 }(0, 1, 2));
diff --git a/test/built-ins/Object/defineProperty/15.2.3.6-4-290.js b/test/built-ins/Object/defineProperty/15.2.3.6-4-290.js
index bb6143ac58..561fbffa0b 100644
--- a/test/built-ins/Object/defineProperty/15.2.3.6-4-290.js
+++ b/test/built-ins/Object/defineProperty/15.2.3.6-4-290.js
@@ -31,7 +31,8 @@ includes: [propertyHelper.js]
 
   verifyWritable(arguments, "0", "setVerifyHelpProp");
 
-  verifyEnumerable(arguments, "0");
-
-  verifyConfigurable(arguments, "0");
+  verifyProperty(arguments, "0", {
+    enumerable: true,
+    configurable: true,
+  });
 }(0, 1, 2));
diff --git a/test/built-ins/Object/defineProperty/15.2.3.6-4-291-1.js b/test/built-ins/Object/defineProperty/15.2.3.6-4-291-1.js
index 0bf6c88e69..31fb6864db 100644
--- a/test/built-ins/Object/defineProperty/15.2.3.6-4-291-1.js
+++ b/test/built-ins/Object/defineProperty/15.2.3.6-4-291-1.js
@@ -36,7 +36,8 @@ includes: [propertyHelper.js]
 
   verifyEqualTo(arguments, "0", getFunc2());
 
-  verifyNotEnumerable(arguments, "0");
-
-  verifyNotConfigurable(arguments, "0");
+  verifyProperty(arguments, "0", {
+    enumerable: false,
+    configurable: false,
+  });
 }(0, 1, 2));
diff --git a/test/built-ins/Object/defineProperty/15.2.3.6-4-291.js b/test/built-ins/Object/defineProperty/15.2.3.6-4-291.js
index 17755a5de4..0c45b1da74 100644
--- a/test/built-ins/Object/defineProperty/15.2.3.6-4-291.js
+++ b/test/built-ins/Object/defineProperty/15.2.3.6-4-291.js
@@ -31,7 +31,8 @@ includes: [propertyHelper.js]
   });
   verifyEqualTo(arguments, "0", getFunc2());
 
-  verifyNotEnumerable(arguments, "0");
-
-  verifyNotConfigurable(arguments, "0");
+  verifyProperty(arguments, "0", {
+    enumerable: false,
+    configurable: false,
+  });
 }(0, 1, 2));
diff --git a/test/built-ins/Object/defineProperty/15.2.3.6-4-292-1.js b/test/built-ins/Object/defineProperty/15.2.3.6-4-292-1.js
index c4760e5ca9..5d0813068e 100644
--- a/test/built-ins/Object/defineProperty/15.2.3.6-4-292-1.js
+++ b/test/built-ins/Object/defineProperty/15.2.3.6-4-292-1.js
@@ -25,11 +25,10 @@ flags: [noStrict]
     throw new Test262Error('Expected a === 20, actually ' + a);
   }
 
-  verifyEqualTo(arguments, "0", 20);
-
-  verifyNotWritable(arguments, "0");
-
-  verifyNotEnumerable(arguments, "0");
-
-  verifyNotConfigurable(arguments, "0");
+  verifyProperty(arguments, "0", {
+    value: 20,
+    writable: false,
+    enumerable: false,
+    configurable: false,
+  });
 }(0, 1, 2));
diff --git a/test/built-ins/Object/defineProperty/15.2.3.6-4-292-2.js b/test/built-ins/Object/defineProperty/15.2.3.6-4-292-2.js
index c5c6b371ad..248de829fd 100644
--- a/test/built-ins/Object/defineProperty/15.2.3.6-4-292-2.js
+++ b/test/built-ins/Object/defineProperty/15.2.3.6-4-292-2.js
@@ -25,11 +25,10 @@ flags: [onlyStrict]
     throw new Test262Error('Expected a === 0, actually ' + a);
   }
 
-  verifyEqualTo(arguments, "0", 20);
-
-  verifyNotWritable(arguments, "0");
-
-  verifyNotEnumerable(arguments, "0");
-
-  verifyNotConfigurable(arguments, "0");
+  verifyProperty(arguments, "0", {
+    value: 20,
+    writable: false,
+    enumerable: false,
+    configurable: false,
+  });
 }(0, 1, 2));
diff --git a/test/built-ins/Object/defineProperty/15.2.3.6-4-292.js b/test/built-ins/Object/defineProperty/15.2.3.6-4-292.js
index 97aec8b7ca..064141d1f8 100644
--- a/test/built-ins/Object/defineProperty/15.2.3.6-4-292.js
+++ b/test/built-ins/Object/defineProperty/15.2.3.6-4-292.js
@@ -18,11 +18,11 @@ includes: [propertyHelper.js]
     enumerable: false,
     configurable: false
   });
-  verifyEqualTo(arguments, "0", 20);
 
-  verifyNotWritable(arguments, "0");
-
-  verifyNotEnumerable(arguments, "0");
-
-  verifyNotConfigurable(arguments, "0");
+  verifyProperty(arguments, "0", {
+    value: 20,
+    writable: false,
+    enumerable: false,
+    configurable: false,
+  });
 }(0, 1, 2));
diff --git a/test/built-ins/Object/defineProperty/15.2.3.6-4-293-1.js b/test/built-ins/Object/defineProperty/15.2.3.6-4-293-1.js
index b9e13227ae..e81d44ba0e 100644
--- a/test/built-ins/Object/defineProperty/15.2.3.6-4-293-1.js
+++ b/test/built-ins/Object/defineProperty/15.2.3.6-4-293-1.js
@@ -20,11 +20,11 @@ includes: [propertyHelper.js]
   Object.defineProperty(arguments, "0", {
     value: 20
   });
-  verifyEqualTo(arguments, "0", 20);
 
-  verifyNotWritable(arguments, "0");
-
-  verifyEnumerable(arguments, "0");
-
-  verifyConfigurable(arguments, "0");
+  verifyProperty(arguments, "0", {
+    value: 20,
+    writable: false,
+    enumerable: true,
+    configurable: true,
+  });
 }(0, 1, 2));
diff --git a/test/built-ins/Object/defineProperty/15.2.3.6-4-293-2.js b/test/built-ins/Object/defineProperty/15.2.3.6-4-293-2.js
index 98eb9586b7..742418ab40 100644
--- a/test/built-ins/Object/defineProperty/15.2.3.6-4-293-2.js
+++ b/test/built-ins/Object/defineProperty/15.2.3.6-4-293-2.js
@@ -28,22 +28,19 @@ flags: [noStrict]
     throw new Test262Error("Expected an exception.");
 
   } catch (e) {
-
     if (!(e instanceof TypeError)) {
       throw new Test262Error("Expected TypeError, got " + e);
     }
 
-    verifyEqualTo(arguments, "0", 10);
-
-    verifyNotWritable(arguments, "0");
-
-    verifyNotEnumerable(arguments, "0");
-
-    verifyNotConfigurable(arguments, "0");
-
     if (a !== 10) {
       throw new Test262Error('Expected "a === 10", actually ' + a);
     }
-
   }
+
+  verifyProperty(arguments, "0", {
+    value: 10,
+    writable: false,
+    enumerable: false,
+    configurable: false,
+  });
 }(0, 1, 2));
diff --git a/test/built-ins/Object/defineProperty/15.2.3.6-4-293-3.js b/test/built-ins/Object/defineProperty/15.2.3.6-4-293-3.js
index 79a71fed67..b4960309b7 100644
--- a/test/built-ins/Object/defineProperty/15.2.3.6-4-293-3.js
+++ b/test/built-ins/Object/defineProperty/15.2.3.6-4-293-3.js
@@ -26,11 +26,10 @@ flags: [noStrict]
     throw new Test262Error('Expected "a === 10", actually ' + a);
   }
 
-  verifyEqualTo(arguments, "0", 20);
-
-  verifyNotWritable(arguments, "0");
-
-  verifyEnumerable(arguments, "0");
-
-  verifyConfigurable(arguments, "0");
+  verifyProperty(arguments, "0", {
+    value: 20,
+    writable: false,
+    enumerable: true,
+    configurable: true,
+  });
 }(0, 1, 2));
diff --git a/test/built-ins/Object/defineProperty/15.2.3.6-4-293-4.js b/test/built-ins/Object/defineProperty/15.2.3.6-4-293-4.js
index 4d8158fa2a..c972265591 100644
--- a/test/built-ins/Object/defineProperty/15.2.3.6-4-293-4.js
+++ b/test/built-ins/Object/defineProperty/15.2.3.6-4-293-4.js
@@ -26,11 +26,10 @@ flags: [onlyStrict]
     throw new Test262Error('Expected "a === 0", actually ' + a);
   }
 
-  verifyEqualTo(arguments, "0", 20);
-
-  verifyNotWritable(arguments, "0");
-
-  verifyEnumerable(arguments, "0");
-
-  verifyConfigurable(arguments, "0");
+  verifyProperty(arguments, "0", {
+    value: 20,
+    writable: false,
+    enumerable: true,
+    configurable: true,
+  });
 }(0, 1, 2));
diff --git a/test/built-ins/Object/defineProperty/15.2.3.6-4-293.js b/test/built-ins/Object/defineProperty/15.2.3.6-4-293.js
index 25dae83a37..f0aee90af9 100644
--- a/test/built-ins/Object/defineProperty/15.2.3.6-4-293.js
+++ b/test/built-ins/Object/defineProperty/15.2.3.6-4-293.js
@@ -25,17 +25,15 @@ includes: [propertyHelper.js]
     });
     throw new Test262Error("Expected an exception.");
   } catch (e) {
-    verifyEqualTo(arguments, "0", 10);
-
-    verifyNotWritable(arguments, "0");
-
-    verifyNotEnumerable(arguments, "0");
-
-    verifyNotConfigurable(arguments, "0");
-
     if (!(e instanceof TypeError)) {
       throw new Test262Error("Expected TypeError, got " + e);
     }
-
   }
+
+  verifyProperty(arguments, "0", {
+    value: 10,
+    writable: false,
+    enumerable: false,
+    configurable: false,
+  });
 }(0, 1, 2));
diff --git a/test/built-ins/Object/defineProperty/15.2.3.6-4-294-1.js b/test/built-ins/Object/defineProperty/15.2.3.6-4-294-1.js
index 4b40ae8e88..3e7a96bc3e 100644
--- a/test/built-ins/Object/defineProperty/15.2.3.6-4-294-1.js
+++ b/test/built-ins/Object/defineProperty/15.2.3.6-4-294-1.js
@@ -32,18 +32,15 @@ flags: [noStrict]
       throw new Test262Error("Expected TypeError, got " + e);
     }
 
-    verifyEqualTo(arguments, "0", 10);
-
-    verifyNotWritable(arguments, "0");
-
-    verifyNotEnumerable(arguments, "0");
-
-    verifyNotConfigurable(arguments, "0");
-
     if (a !== 10) {
       throw new Test262Error('Expected "a === 10", actually ' + a);
     }
-
   }
 
+  verifyProperty(arguments, "0", {
+    value: 10,
+    writable: false,
+    enumerable: false,
+    configurable: false,
+  });
 }(0, 1, 2));
diff --git a/test/built-ins/Object/defineProperty/15.2.3.6-4-294.js b/test/built-ins/Object/defineProperty/15.2.3.6-4-294.js
index b6dc716f20..af51a8e3e3 100644
--- a/test/built-ins/Object/defineProperty/15.2.3.6-4-294.js
+++ b/test/built-ins/Object/defineProperty/15.2.3.6-4-294.js
@@ -24,17 +24,15 @@ includes: [propertyHelper.js]
     });
     throw new Test262Error("Expected an exception.");
   } catch (e) {
-    verifyEqualTo(arguments, "0", 10);
-
-    verifyNotWritable(arguments, "0");
-
-    verifyNotEnumerable(arguments, "0");
-
-    verifyNotConfigurable(arguments, "0");
-
     if (!(e instanceof TypeError)) {
       throw new Test262Error("Expected TypeError, got " + e);
     }
-
   }
+
+  verifyProperty(arguments, "0", {
+    value: 10,
+    writable: false,
+    enumerable: false,
+    configurable: false,
+  });
 }(0, 1, 2));
diff --git a/test/built-ins/Object/defineProperty/15.2.3.6-4-295-1.js b/test/built-ins/Object/defineProperty/15.2.3.6-4-295-1.js
index 7e5b60dd1a..8fbda7692d 100644
--- a/test/built-ins/Object/defineProperty/15.2.3.6-4-295-1.js
+++ b/test/built-ins/Object/defineProperty/15.2.3.6-4-295-1.js
@@ -32,16 +32,15 @@ flags: [noStrict]
       throw new Test262Error("Expected TypeError, got " + e);
     }
 
-    verifyEqualTo(arguments, "0", 10);
-
-    verifyNotWritable(arguments, "0");
-
-    verifyEnumerable(arguments, "0");
-
-    verifyNotConfigurable(arguments, "0");
-
     if (a !== 10) {
       throw new Test262Error('Expected "a === 10", actually ' + a);
     }
   }
+
+  verifyProperty(arguments, "0", {
+    value: 10,
+    writable: false,
+    enumerable: true,
+    configurable: false,
+  });
 }(0, 1, 2));
diff --git a/test/built-ins/Object/defineProperty/15.2.3.6-4-295.js b/test/built-ins/Object/defineProperty/15.2.3.6-4-295.js
index c84bf1ed89..72090a9eb7 100644
--- a/test/built-ins/Object/defineProperty/15.2.3.6-4-295.js
+++ b/test/built-ins/Object/defineProperty/15.2.3.6-4-295.js
@@ -24,17 +24,15 @@ includes: [propertyHelper.js]
     });
     throw new Test262Error("Expected an exception.");
   } catch (e) {
-    verifyEqualTo(arguments, "0", 10);
-
-    verifyNotWritable(arguments, "0");
-
-    verifyEnumerable(arguments, "0");
-
-    verifyNotConfigurable(arguments, "0");
-
     if (!(e instanceof TypeError)) {
       throw new Test262Error("Expected TypeError, got " + e);
     }
-
   }
+
+  verifyProperty(arguments, "0", {
+    value: 10,
+    writable: false,
+    enumerable: true,
+    configurable: false,
+  });
 }(0, 1, 2));
diff --git a/test/built-ins/Object/defineProperty/15.2.3.6-4-296-1.js b/test/built-ins/Object/defineProperty/15.2.3.6-4-296-1.js
index dd632b8672..ccb305bc26 100644
--- a/test/built-ins/Object/defineProperty/15.2.3.6-4-296-1.js
+++ b/test/built-ins/Object/defineProperty/15.2.3.6-4-296-1.js
@@ -31,16 +31,15 @@ flags: [noStrict]
       throw new Test262Error("Expected TypeError, got " + e);
     }
 
-    verifyEqualTo(arguments, "0", 10);
-
-    verifyNotWritable(arguments, "0");
-
-    verifyNotEnumerable(arguments, "0");
-
-    verifyNotConfigurable(arguments, "0");
-
     if (a !== 10) {
       throw new Test262Error('Expected "a === 10", actually ' + a);
     }
   }
+
+  verifyProperty(arguments, "0", {
+    value: 10,
+    writable: false,
+    enumerable: false,
+    configurable: false,
+  });
 }(0, 1, 2));
diff --git a/test/built-ins/Object/defineProperty/15.2.3.6-4-296.js b/test/built-ins/Object/defineProperty/15.2.3.6-4-296.js
index e6295ca2b1..a099fe1193 100644
--- a/test/built-ins/Object/defineProperty/15.2.3.6-4-296.js
+++ b/test/built-ins/Object/defineProperty/15.2.3.6-4-296.js
@@ -24,17 +24,15 @@ includes: [propertyHelper.js]
     });
     throw new Test262Error("Expected an exception.");
   } catch (e) {
-    verifyEqualTo(arguments, "0", 10);
-
-    verifyNotWritable(arguments, "0");
-
-    verifyNotEnumerable(arguments, "0");
-
-    verifyNotConfigurable(arguments, "0");
-
     if (!(e instanceof TypeError)) {
       throw new Test262Error("Expected TypeError, got " + e);
     }
-
   }
+
+  verifyProperty(arguments, "0", {
+    value: 10,
+    writable: false,
+    enumerable: false,
+    configurable: false,
+  });
 }(0, 1, 2));
diff --git a/test/built-ins/Object/defineProperty/15.2.3.6-4-297-1.js b/test/built-ins/Object/defineProperty/15.2.3.6-4-297-1.js
index 6f6b5b0d9e..d34ad9c407 100644
--- a/test/built-ins/Object/defineProperty/15.2.3.6-4-297-1.js
+++ b/test/built-ins/Object/defineProperty/15.2.3.6-4-297-1.js
@@ -38,13 +38,13 @@ includes: [propertyHelper.js]
 
     verifyEqualTo(arguments, "0", getFunc1());
 
-    verifyNotEnumerable(arguments, "0");
-
-    verifyNotConfigurable(arguments, "0");
-
     if (!(e instanceof TypeError)) {
       throw new Test262Error("Expected TypeError, got " + e);
     }
-
   }
+
+  verifyProperty(arguments, "0", {
+    enumerable: false,
+    configurable: false,
+  });
 }(0, 1, 2));
diff --git a/test/built-ins/Object/defineProperty/15.2.3.6-4-297.js b/test/built-ins/Object/defineProperty/15.2.3.6-4-297.js
index 402c570c5e..8cc1e48f66 100644
--- a/test/built-ins/Object/defineProperty/15.2.3.6-4-297.js
+++ b/test/built-ins/Object/defineProperty/15.2.3.6-4-297.js
@@ -32,13 +32,13 @@ includes: [propertyHelper.js]
   } catch (e) {
     verifyEqualTo(arguments, "0", getFunc1());
 
-    verifyNotEnumerable(arguments, "0");
-
-    verifyNotConfigurable(arguments, "0");
-
     if (!(e instanceof TypeError)) {
       throw new Test262Error("Expected TypeError, got " + e);
     }
-
   }
+
+  verifyProperty(arguments, "0", {
+    enumerable: false,
+    configurable: false,
+  });
 }(0, 1, 2));
diff --git a/test/built-ins/Object/defineProperty/15.2.3.6-4-298-1.js b/test/built-ins/Object/defineProperty/15.2.3.6-4-298-1.js
index 30dd1f884f..b9029e1026 100644
--- a/test/built-ins/Object/defineProperty/15.2.3.6-4-298-1.js
+++ b/test/built-ins/Object/defineProperty/15.2.3.6-4-298-1.js
@@ -39,13 +39,13 @@ includes: [propertyHelper.js]
 
     verifyEqualTo(arguments, "0", getFunc());
 
-    verifyNotEnumerable(arguments, "0");
-
-    verifyNotConfigurable(arguments, "0");
-
     if (!(e instanceof TypeError)) {
       throw new Test262Error("Expected TypeError, got " + e);
     }
-
   }
+
+  verifyProperty(arguments, "0", {
+    enumerable: false,
+    configurable: false,
+  });
 }(0, 1, 2));
diff --git a/test/built-ins/Object/defineProperty/15.2.3.6-4-298.js b/test/built-ins/Object/defineProperty/15.2.3.6-4-298.js
index 5bb323da6a..e1b31e0699 100644
--- a/test/built-ins/Object/defineProperty/15.2.3.6-4-298.js
+++ b/test/built-ins/Object/defineProperty/15.2.3.6-4-298.js
@@ -33,13 +33,13 @@ includes: [propertyHelper.js]
   } catch (e) {
     verifyEqualTo(arguments, "0", getFunc());
 
-    verifyNotEnumerable(arguments, "0");
-
-    verifyNotConfigurable(arguments, "0");
-
     if (!(e instanceof TypeError)) {
       throw new Test262Error("Expected TypeError, got " + e);
     }
-
   }
+
+  verifyProperty(arguments, "0", {
+    enumerable: false,
+    configurable: false,
+  });
 }(0, 1, 2));
diff --git a/test/built-ins/Object/defineProperty/15.2.3.6-4-299-1.js b/test/built-ins/Object/defineProperty/15.2.3.6-4-299-1.js
index 00d3eeff30..4b9828cee9 100644
--- a/test/built-ins/Object/defineProperty/15.2.3.6-4-299-1.js
+++ b/test/built-ins/Object/defineProperty/15.2.3.6-4-299-1.js
@@ -33,13 +33,13 @@ includes: [propertyHelper.js]
     }
     verifyEqualTo(arguments, "0", getFunc());
 
-    verifyEnumerable(arguments, "0");
-
-    verifyNotConfigurable(arguments, "0");
-
     if (!(e instanceof TypeError)) {
       throw new Test262Error("Expected TypeError, got " + e);
     }
-
   }
+
+  verifyProperty(arguments, "0", {
+    enumerable: true,
+    configurable: false,
+  });
 }(0, 1, 2));
diff --git a/test/built-ins/Object/defineProperty/15.2.3.6-4-299.js b/test/built-ins/Object/defineProperty/15.2.3.6-4-299.js
index 9ef1eea060..88dc93adb7 100644
--- a/test/built-ins/Object/defineProperty/15.2.3.6-4-299.js
+++ b/test/built-ins/Object/defineProperty/15.2.3.6-4-299.js
@@ -28,13 +28,13 @@ includes: [propertyHelper.js]
   } catch (e) {
     verifyEqualTo(arguments, "0", getFunc());
 
-    verifyEnumerable(arguments, "0");
-
-    verifyNotConfigurable(arguments, "0");
-
     if (!(e instanceof TypeError)) {
       throw new Test262Error("Expected TypeError, got " + e);
     }
-
   }
+
+  verifyProperty(arguments, "0", {
+    enumerable: true,
+    configurable: false,
+  });
 }(0, 1, 2));
diff --git a/test/built-ins/Object/defineProperty/15.2.3.6-4-300-1.js b/test/built-ins/Object/defineProperty/15.2.3.6-4-300-1.js
index a2e8fbb3e4..3fe724052e 100644
--- a/test/built-ins/Object/defineProperty/15.2.3.6-4-300-1.js
+++ b/test/built-ins/Object/defineProperty/15.2.3.6-4-300-1.js
@@ -33,13 +33,13 @@ includes: [propertyHelper.js]
     }
     verifyEqualTo(arguments, "0", getFunc());
 
-    verifyEnumerable(arguments, "0");
-
-    verifyNotConfigurable(arguments, "0");
-
     if (!(e instanceof TypeError)) {
       throw new Test262Error("Expected TypeError, got " + e);
     }
-
   }
+
+  verifyProperty(arguments, "0", {
+    enumerable: true,
+    configurable: false,
+  });
 }(0, 1, 2));
diff --git a/test/built-ins/Object/defineProperty/15.2.3.6-4-300.js b/test/built-ins/Object/defineProperty/15.2.3.6-4-300.js
index 094ebaf8ae..f1b2b3e00e 100644
--- a/test/built-ins/Object/defineProperty/15.2.3.6-4-300.js
+++ b/test/built-ins/Object/defineProperty/15.2.3.6-4-300.js
@@ -28,13 +28,13 @@ includes: [propertyHelper.js]
   } catch (e) {
     verifyEqualTo(arguments, "0", getFunc());
 
-    verifyEnumerable(arguments, "0");
-
-    verifyNotConfigurable(arguments, "0");
-
     if (!(e instanceof TypeError)) {
       throw new Test262Error("Expected TypeError, got " + e);
     }
-
   }
+
+  verifyProperty(arguments, "0", {
+    enumerable: true,
+    configurable: false,
+  });
 }(0, 1, 2));
diff --git a/test/built-ins/Object/defineProperty/15.2.3.6-4-301-1.js b/test/built-ins/Object/defineProperty/15.2.3.6-4-301-1.js
index 34ee4e9274..33dfdab8a8 100644
--- a/test/built-ins/Object/defineProperty/15.2.3.6-4-301-1.js
+++ b/test/built-ins/Object/defineProperty/15.2.3.6-4-301-1.js
@@ -23,11 +23,11 @@ includes: [propertyHelper.js]
   if (a !== 0) {
     throw new Test262Error("Expected a === 0, actually " + a);
   }
-  verifyEqualTo(arguments, "0", 10);
 
-  verifyNotWritable(arguments, "0");
-
-  verifyNotEnumerable(arguments, "0");
-
-  verifyNotConfigurable(arguments, "0");
+  verifyProperty(arguments, "0", {
+    value: 10,
+    writable: false,
+    enumerable: false,
+    configurable: false,
+  });
 }(0, 1, 2));
diff --git a/test/built-ins/Object/defineProperty/15.2.3.6-4-301.js b/test/built-ins/Object/defineProperty/15.2.3.6-4-301.js
index 6dc4637f91..320bd37928 100644
--- a/test/built-ins/Object/defineProperty/15.2.3.6-4-301.js
+++ b/test/built-ins/Object/defineProperty/15.2.3.6-4-301.js
@@ -20,11 +20,11 @@ includes: [propertyHelper.js]
     enumerable: false,
     configurable: false
   });
-  verifyEqualTo(arguments, "0", 10);
 
-  verifyNotWritable(arguments, "0");
-
-  verifyNotEnumerable(arguments, "0");
-
-  verifyNotConfigurable(arguments, "0");
+  verifyProperty(arguments, "0", {
+    value: 10,
+    writable: false,
+    enumerable: false,
+    configurable: false,
+  });
 }(0, 1, 2));
diff --git a/test/built-ins/Object/defineProperty/15.2.3.6-4-302-1.js b/test/built-ins/Object/defineProperty/15.2.3.6-4-302-1.js
index fe96b1e9a4..04b4b96657 100644
--- a/test/built-ins/Object/defineProperty/15.2.3.6-4-302-1.js
+++ b/test/built-ins/Object/defineProperty/15.2.3.6-4-302-1.js
@@ -36,7 +36,8 @@ includes: [propertyHelper.js]
 
   verifyWritable(arguments, "0", "setVerifyHelpProp");
 
-  verifyNotEnumerable(arguments, "0");
-
-  verifyNotConfigurable(arguments, "0");
+  verifyProperty(arguments, "0", {
+    enumerable: false,
+    configurable: false,
+  });
 }(0, 1, 2));
diff --git a/test/built-ins/Object/defineProperty/15.2.3.6-4-302.js b/test/built-ins/Object/defineProperty/15.2.3.6-4-302.js
index fd92a564fb..8c27ee8c9b 100644
--- a/test/built-ins/Object/defineProperty/15.2.3.6-4-302.js
+++ b/test/built-ins/Object/defineProperty/15.2.3.6-4-302.js
@@ -32,7 +32,8 @@ includes: [propertyHelper.js]
 
   verifyWritable(arguments, "0", "setVerifyHelpProp");
 
-  verifyNotEnumerable(arguments, "0");
-
-  verifyNotConfigurable(arguments, "0");
+  verifyProperty(arguments, "0", {
+    enumerable: false,
+    configurable: false,
+  });
 }(0, 1, 2));
diff --git a/test/built-ins/Object/defineProperty/15.2.3.6-4-303.js b/test/built-ins/Object/defineProperty/15.2.3.6-4-303.js
index 33605ec77a..1d62577a63 100644
--- a/test/built-ins/Object/defineProperty/15.2.3.6-4-303.js
+++ b/test/built-ins/Object/defineProperty/15.2.3.6-4-303.js
@@ -32,7 +32,8 @@ includes: [propertyHelper.js]
   });
   verifyEqualTo(arguments, "0", getFunc2());
 
-  verifyNotEnumerable(arguments, "0");
-
-  verifyNotConfigurable(arguments, "0");
+  verifyProperty(arguments, "0", {
+    enumerable: false,
+    configurable: false,
+  });
 }());
diff --git a/test/built-ins/Object/defineProperty/15.2.3.6-4-304.js b/test/built-ins/Object/defineProperty/15.2.3.6-4-304.js
index c775554aeb..e6ad749c6e 100644
--- a/test/built-ins/Object/defineProperty/15.2.3.6-4-304.js
+++ b/test/built-ins/Object/defineProperty/15.2.3.6-4-304.js
@@ -19,11 +19,11 @@ includes: [propertyHelper.js]
     enumerable: false,
     configurable: false
   });
-  verifyEqualTo(arguments, "0", 20);
 
-  verifyNotWritable(arguments, "0");
-
-  verifyNotEnumerable(arguments, "0");
-
-  verifyNotConfigurable(arguments, "0");
+  verifyProperty(arguments, "0", {
+    value: 20,
+    writable: false,
+    enumerable: false,
+    configurable: false,
+  });
 }());
diff --git a/test/built-ins/Object/defineProperty/15.2.3.6-4-305.js b/test/built-ins/Object/defineProperty/15.2.3.6-4-305.js
index f0ed749b85..200c462286 100644
--- a/test/built-ins/Object/defineProperty/15.2.3.6-4-305.js
+++ b/test/built-ins/Object/defineProperty/15.2.3.6-4-305.js
@@ -25,17 +25,15 @@ includes: [propertyHelper.js]
     });
     throw new Test262Error("Expected an exception.");
   } catch (e) {
-    verifyEqualTo(arguments, "0", 0);
-
-    verifyNotWritable(arguments, "0");
-
-    verifyNotEnumerable(arguments, "0");
-
-    verifyNotConfigurable(arguments, "0");
-
     if (!(e instanceof TypeError)) {
       throw new Test262Error("Expected TypeError, got " + e);
     }
-
   }
+
+  verifyProperty(arguments, "0", {
+    value: 0,
+    writable: false,
+    enumerable: false,
+    configurable: false,
+  });
 }());
diff --git a/test/built-ins/Object/defineProperty/15.2.3.6-4-306.js b/test/built-ins/Object/defineProperty/15.2.3.6-4-306.js
index 1ea0cc7311..c584ff8bd8 100644
--- a/test/built-ins/Object/defineProperty/15.2.3.6-4-306.js
+++ b/test/built-ins/Object/defineProperty/15.2.3.6-4-306.js
@@ -25,17 +25,15 @@ includes: [propertyHelper.js]
     });
     throw new Test262Error("Expected an exception.");
   } catch (e) {
-    verifyEqualTo(arguments, "0", 0);
-
-    verifyNotWritable(arguments, "0");
-
-    verifyNotEnumerable(arguments, "0");
-
-    verifyNotConfigurable(arguments, "0");
-
     if (!(e instanceof TypeError)) {
       throw new Test262Error("Expected TypeError, got " + e);
     }
-
   }
+
+  verifyProperty(arguments, "0", {
+    value: 0,
+    writable: false,
+    enumerable: false,
+    configurable: false,
+  });
 }());
diff --git a/test/built-ins/Object/defineProperty/15.2.3.6-4-307.js b/test/built-ins/Object/defineProperty/15.2.3.6-4-307.js
index 7269014ff7..377a8238f6 100644
--- a/test/built-ins/Object/defineProperty/15.2.3.6-4-307.js
+++ b/test/built-ins/Object/defineProperty/15.2.3.6-4-307.js
@@ -25,17 +25,15 @@ includes: [propertyHelper.js]
     });
     throw new Test262Error("Expected an exception.");
   } catch (e) {
-    verifyEqualTo(arguments, "0", 0);
-
-    verifyNotWritable(arguments, "0");
-
-    verifyEnumerable(arguments, "0");
-
-    verifyNotConfigurable(arguments, "0");
-
     if (!(e instanceof TypeError)) {
       throw new Test262Error("Expected TypeError, got " + e);
     }
-
   }
+
+  verifyProperty(arguments, "0", {
+    value: 0,
+    writable: false,
+    enumerable: true,
+    configurable: false,
+  });
 }());
diff --git a/test/built-ins/Object/defineProperty/15.2.3.6-4-308.js b/test/built-ins/Object/defineProperty/15.2.3.6-4-308.js
index 04e0737d50..fb3d10677c 100644
--- a/test/built-ins/Object/defineProperty/15.2.3.6-4-308.js
+++ b/test/built-ins/Object/defineProperty/15.2.3.6-4-308.js
@@ -25,17 +25,15 @@ includes: [propertyHelper.js]
     });
     throw new Test262Error("Expected an exception.");
   } catch (e) {
-    verifyEqualTo(arguments, "0", 0);
-
-    verifyNotWritable(arguments, "0");
-
-    verifyNotEnumerable(arguments, "0");
-
-    verifyNotConfigurable(arguments, "0");
-
     if (!(e instanceof TypeError)) {
       throw new Test262Error("Expected TypeError, got " + e);
     }
-
   }
+
+  verifyProperty(arguments, "0", {
+    value: 0,
+    writable: false,
+    enumerable: false,
+    configurable: false,
+  });
 }());
diff --git a/test/built-ins/Object/defineProperty/15.2.3.6-4-309.js b/test/built-ins/Object/defineProperty/15.2.3.6-4-309.js
index f98793d004..6355fc5237 100644
--- a/test/built-ins/Object/defineProperty/15.2.3.6-4-309.js
+++ b/test/built-ins/Object/defineProperty/15.2.3.6-4-309.js
@@ -33,13 +33,13 @@ includes: [propertyHelper.js]
   } catch (e) {
     verifyEqualTo(arguments, "0", getFunc1());
 
-    verifyNotEnumerable(arguments, "0");
-
-    verifyNotConfigurable(arguments, "0");
-
     if (!(e instanceof TypeError)) {
       throw new Test262Error("Expected TypeError, got " + e);
     }
-
   }
+
+  verifyProperty(arguments, "0", {
+    enumerable: false,
+    configurable: false,
+  });
 }());
diff --git a/test/built-ins/Object/defineProperty/15.2.3.6-4-310.js b/test/built-ins/Object/defineProperty/15.2.3.6-4-310.js
index 8b72ae3ed3..5301b5790f 100644
--- a/test/built-ins/Object/defineProperty/15.2.3.6-4-310.js
+++ b/test/built-ins/Object/defineProperty/15.2.3.6-4-310.js
@@ -34,13 +34,13 @@ includes: [propertyHelper.js]
   } catch (e) {
     verifyEqualTo(arguments, "0", getFunc());
 
-    verifyNotEnumerable(arguments, "0");
-
-    verifyNotConfigurable(arguments, "0");
-
     if (!(e instanceof TypeError)) {
       throw new Test262Error("Expected TypeError, got " + e);
     }
-
   }
+
+  verifyProperty(arguments, "0", {
+    enumerable: false,
+    configurable: false,
+  });
 }());
diff --git a/test/built-ins/Object/defineProperty/15.2.3.6-4-311.js b/test/built-ins/Object/defineProperty/15.2.3.6-4-311.js
index d743858af9..96bd605af6 100644
--- a/test/built-ins/Object/defineProperty/15.2.3.6-4-311.js
+++ b/test/built-ins/Object/defineProperty/15.2.3.6-4-311.js
@@ -29,13 +29,13 @@ includes: [propertyHelper.js]
   } catch (e) {
     verifyEqualTo(arguments, "0", getFunc());
 
-    verifyEnumerable(arguments, "0");
-
-    verifyNotConfigurable(arguments, "0");
-
     if (!(e instanceof TypeError)) {
       throw new Test262Error("Expected TypeError, got " + e);
     }
-
   }
+
+  verifyProperty(arguments, "0", {
+    enumerable: true,
+    configurable: false,
+  });
 }());
diff --git a/test/built-ins/Object/defineProperty/15.2.3.6-4-312.js b/test/built-ins/Object/defineProperty/15.2.3.6-4-312.js
index c3bf8b75a8..222d4eacbd 100644
--- a/test/built-ins/Object/defineProperty/15.2.3.6-4-312.js
+++ b/test/built-ins/Object/defineProperty/15.2.3.6-4-312.js
@@ -27,13 +27,13 @@ includes: [propertyHelper.js]
   } catch (e) {
     verifyEqualTo(arguments, "0", getFunc());
 
-    verifyEnumerable(arguments, "0");
-
-    verifyNotConfigurable(arguments, "0");
-
     if (!(e instanceof TypeError)) {
       throw new Test262Error("Expected TypeError, got " + e);
     }
-
   }
+
+  verifyProperty(arguments, "0", {
+    enumerable: true,
+    configurable: false,
+  });
 }());
diff --git a/test/built-ins/Object/defineProperty/15.2.3.6-4-313-1.js b/test/built-ins/Object/defineProperty/15.2.3.6-4-313-1.js
index 7e90583b83..fec3c49041 100644
--- a/test/built-ins/Object/defineProperty/15.2.3.6-4-313-1.js
+++ b/test/built-ins/Object/defineProperty/15.2.3.6-4-313-1.js
@@ -18,11 +18,11 @@ includes: [propertyHelper.js]
     enumerable: true,
     configurable: true
   });
-  verifyEqualTo(arguments, "genericProperty", 1001);
 
-  verifyWritable(arguments, "genericProperty");
-
-  verifyEnumerable(arguments, "genericProperty");
-
-  verifyConfigurable(arguments, "genericProperty");
+  verifyProperty(arguments, "genericProperty", {
+    value: 1001,
+    writable: true,
+    enumerable: true,
+    configurable: true,
+  });
 }(1, 2, 3));
diff --git a/test/built-ins/Object/defineProperty/15.2.3.6-4-313.js b/test/built-ins/Object/defineProperty/15.2.3.6-4-313.js
index 05d378ee26..7c4221bf60 100644
--- a/test/built-ins/Object/defineProperty/15.2.3.6-4-313.js
+++ b/test/built-ins/Object/defineProperty/15.2.3.6-4-313.js
@@ -18,11 +18,11 @@ includes: [propertyHelper.js]
     enumerable: true,
     configurable: true
   });
-  verifyEqualTo(arguments, "genericProperty", 1001);
 
-  verifyWritable(arguments, "genericProperty");
-
-  verifyEnumerable(arguments, "genericProperty");
-
-  verifyConfigurable(arguments, "genericProperty");
+  verifyProperty(arguments, "genericProperty", {
+    value: 1001,
+    writable: true,
+    enumerable: true,
+    configurable: true,
+  });
 }(1, 2, 3));
diff --git a/test/built-ins/Object/defineProperty/15.2.3.6-4-314-1.js b/test/built-ins/Object/defineProperty/15.2.3.6-4-314-1.js
index 8ed0c58c06..006f87ed84 100644
--- a/test/built-ins/Object/defineProperty/15.2.3.6-4-314-1.js
+++ b/test/built-ins/Object/defineProperty/15.2.3.6-4-314-1.js
@@ -29,7 +29,8 @@ includes: [propertyHelper.js]
 
   verifyWritable(arguments, "genericProperty", "testgetFunction");
 
-  verifyEnumerable(arguments, "genericProperty");
-
-  verifyConfigurable(arguments, "genericProperty");
+  verifyProperty(arguments, "genericProperty", {
+    enumerable: true,
+    configurable: true,
+  });
 }(1, 2, 3));
diff --git a/test/built-ins/Object/defineProperty/15.2.3.6-4-314.js b/test/built-ins/Object/defineProperty/15.2.3.6-4-314.js
index 9167077974..cc358abcd0 100644
--- a/test/built-ins/Object/defineProperty/15.2.3.6-4-314.js
+++ b/test/built-ins/Object/defineProperty/15.2.3.6-4-314.js
@@ -29,7 +29,8 @@ includes: [propertyHelper.js]
 
   verifyWritable(arguments, "genericProperty", "testgetFunction");
 
-  verifyEnumerable(arguments, "genericProperty");
-
-  verifyConfigurable(arguments, "genericProperty");
+  verifyProperty(arguments, "genericProperty", {
+    enumerable: true,
+    configurable: true,
+  });
 }(1, 2, 3));
diff --git a/test/built-ins/Object/defineProperty/15.2.3.6-4-315-1.js b/test/built-ins/Object/defineProperty/15.2.3.6-4-315-1.js
index 6cc433db93..a9e78ba1d4 100644
--- a/test/built-ins/Object/defineProperty/15.2.3.6-4-315-1.js
+++ b/test/built-ins/Object/defineProperty/15.2.3.6-4-315-1.js
@@ -44,7 +44,8 @@ includes: [propertyHelper.js]
 
   verifyWritable(arguments, "genericProperty", "testgetFunction");
 
-  verifyNotEnumerable(arguments, "genericProperty");
-
-  verifyNotConfigurable(arguments, "genericProperty");
+  verifyProperty(arguments, "genericProperty", {
+    enumerable: false,
+    configurable: false,
+  });
 }(1, 2, 3));
diff --git a/test/built-ins/Object/defineProperty/15.2.3.6-4-315.js b/test/built-ins/Object/defineProperty/15.2.3.6-4-315.js
index 023026644b..9fd02954a1 100644
--- a/test/built-ins/Object/defineProperty/15.2.3.6-4-315.js
+++ b/test/built-ins/Object/defineProperty/15.2.3.6-4-315.js
@@ -40,7 +40,8 @@ includes: [propertyHelper.js]
 
   verifyWritable(arguments, "genericProperty", "testgetFunction");
 
-  verifyNotEnumerable(arguments, "genericProperty");
-
-  verifyNotConfigurable(arguments, "genericProperty");
+  verifyProperty(arguments, "genericProperty", {
+    enumerable: false,
+    configurable: false,
+  });
 }(1, 2, 3));
diff --git a/test/built-ins/Object/defineProperty/15.2.3.6-4-316-1.js b/test/built-ins/Object/defineProperty/15.2.3.6-4-316-1.js
index 3b84cf6e32..a6db83c83c 100644
--- a/test/built-ins/Object/defineProperty/15.2.3.6-4-316-1.js
+++ b/test/built-ins/Object/defineProperty/15.2.3.6-4-316-1.js
@@ -23,11 +23,11 @@ includes: [propertyHelper.js]
     enumerable: false,
     configurable: false
   });
-  verifyEqualTo(arguments, "genericProperty", 1002);
 
-  verifyWritable(arguments, "genericProperty");
-
-  verifyNotEnumerable(arguments, "genericProperty");
-
-  verifyNotConfigurable(arguments, "genericProperty");
+  verifyProperty(arguments, "genericProperty", {
+    value: 1002,
+    writable: true,
+    enumerable: false,
+    configurable: false,
+  });
 }(1, 2, 3));
diff --git a/test/built-ins/Object/defineProperty/15.2.3.6-4-316.js b/test/built-ins/Object/defineProperty/15.2.3.6-4-316.js
index 5383d137e2..818a766504 100644
--- a/test/built-ins/Object/defineProperty/15.2.3.6-4-316.js
+++ b/test/built-ins/Object/defineProperty/15.2.3.6-4-316.js
@@ -23,11 +23,11 @@ includes: [propertyHelper.js]
     enumerable: false,
     configurable: false
   });
-  verifyEqualTo(arguments, "genericProperty", 1002);
 
-  verifyWritable(arguments, "genericProperty");
-
-  verifyNotEnumerable(arguments, "genericProperty");
-
-  verifyNotConfigurable(arguments, "genericProperty");
+  verifyProperty(arguments, "genericProperty", {
+    value: 1002,
+    writable: true,
+    enumerable: false,
+    configurable: false,
+  });
 }(1, 2, 3));
diff --git a/test/built-ins/Object/defineProperty/15.2.3.6-4-317-1.js b/test/built-ins/Object/defineProperty/15.2.3.6-4-317-1.js
index bde6835e1f..e6b876e0bc 100644
--- a/test/built-ins/Object/defineProperty/15.2.3.6-4-317-1.js
+++ b/test/built-ins/Object/defineProperty/15.2.3.6-4-317-1.js
@@ -28,17 +28,15 @@ includes: [propertyHelper.js]
       throw new Test262Error('Expected "b === 2;", actually ' + b);
     }
 
-    verifyEqualTo(arguments, "genericProperty", 1001);
-
-    verifyNotWritable(arguments, "genericProperty");
-
-    verifyNotEnumerable(arguments, "genericProperty");
-
-    verifyNotConfigurable(arguments, "genericProperty");
-
     if (!(e instanceof TypeError)) {
       throw new Test262Error("Expected TypeError, got " + e);
     }
-
   }
+
+  verifyProperty(arguments, "genericProperty", {
+    value: 1001,
+    writable: false,
+    enumerable: false,
+    configurable: false,
+  });
 }(1, 2, 3));
diff --git a/test/built-ins/Object/defineProperty/15.2.3.6-4-317.js b/test/built-ins/Object/defineProperty/15.2.3.6-4-317.js
index 6c46d73ab6..845268cadb 100644
--- a/test/built-ins/Object/defineProperty/15.2.3.6-4-317.js
+++ b/test/built-ins/Object/defineProperty/15.2.3.6-4-317.js
@@ -23,17 +23,15 @@ includes: [propertyHelper.js]
     });
     throw new Test262Error("Expected an exception.");
   } catch (e) {
-    verifyEqualTo(arguments, "genericProperty", 1001);
-
-    verifyNotWritable(arguments, "genericProperty");
-
-    verifyNotEnumerable(arguments, "genericProperty");
-
-    verifyNotConfigurable(arguments, "genericProperty");
-
     if (!(e instanceof TypeError)) {
       throw new Test262Error("Expected TypeError, got " + e);
     }
-
   }
+
+  verifyProperty(arguments, "genericProperty", {
+    value: 1001,
+    writable: false,
+    enumerable: false,
+    configurable: false,
+  });
 }(1, 2, 3));
diff --git a/test/built-ins/Object/defineProperty/15.2.3.6-4-318-1.js b/test/built-ins/Object/defineProperty/15.2.3.6-4-318-1.js
index 376ec4a966..5d84b965bf 100644
--- a/test/built-ins/Object/defineProperty/15.2.3.6-4-318-1.js
+++ b/test/built-ins/Object/defineProperty/15.2.3.6-4-318-1.js
@@ -23,17 +23,15 @@ includes: [propertyHelper.js]
     });
     throw new Test262Error("Expected an exception.");
   } catch (e) {
-    verifyEqualTo(arguments, "genericProperty", undefined);
-
-    verifyNotWritable(arguments, "genericProperty");
-
-    verifyNotEnumerable(arguments, "genericProperty");
-
-    verifyNotConfigurable(arguments, "genericProperty");
-
     if (!(e instanceof TypeError)) {
       throw new Test262Error("Expected TypeError, got " + e);
     }
-
   }
+
+  verifyProperty(arguments, "genericProperty", {
+    value: undefined,
+    writable: false,
+    enumerable: false,
+    configurable: false,
+  });
 }(1, 2, 3));
diff --git a/test/built-ins/Object/defineProperty/15.2.3.6-4-318.js b/test/built-ins/Object/defineProperty/15.2.3.6-4-318.js
index 9fdbfd57c0..f584bf1549 100644
--- a/test/built-ins/Object/defineProperty/15.2.3.6-4-318.js
+++ b/test/built-ins/Object/defineProperty/15.2.3.6-4-318.js
@@ -22,19 +22,15 @@ includes: [propertyHelper.js]
     });
     throw new Test262Error("Expected an exception.");
   } catch (e) {
-    verifyEqualTo(arguments, "genericProperty", undefined);
-
-    verifyNotWritable(arguments, "genericProperty");
-
-    verifyNotEnumerable(arguments, "genericProperty");
-
-    verifyNotConfigurable(arguments, "genericProperty");
-
-
     if (!(e instanceof TypeError)) {
       throw new Test262Error("Expected TypeError, got " + e);
     }
-
   }
 
+  verifyProperty(arguments, "genericProperty", {
+    value: undefined,
+    writable: false,
+    enumerable: false,
+    configurable: false,
+  });
 }(1, 2, 3));
diff --git a/test/built-ins/Object/defineProperty/15.2.3.6-4-319-1.js b/test/built-ins/Object/defineProperty/15.2.3.6-4-319-1.js
index 1d819cc170..0ec9b6dca2 100644
--- a/test/built-ins/Object/defineProperty/15.2.3.6-4-319-1.js
+++ b/test/built-ins/Object/defineProperty/15.2.3.6-4-319-1.js
@@ -23,18 +23,15 @@ includes: [propertyHelper.js]
     });
     throw new Test262Error("Expected an exception.");
   } catch (e) {
-    verifyEqualTo(arguments, "genericProperty", undefined);
-
-    verifyNotWritable(arguments, "genericProperty");
-
-    verifyEnumerable(arguments, "genericProperty");
-
-    verifyNotConfigurable(arguments, "genericProperty");
-
-
     if (!(e instanceof TypeError)) {
       throw new Test262Error("Expected TypeError, got " + e);
     }
-
   }
+
+  verifyProperty(arguments, "genericProperty", {
+    value: undefined,
+    writable: false,
+    enumerable: true,
+    configurable: false,
+  });
 }(1, 2, 3));
diff --git a/test/built-ins/Object/defineProperty/15.2.3.6-4-319.js b/test/built-ins/Object/defineProperty/15.2.3.6-4-319.js
index 3a9778eb9c..294da77ca6 100644
--- a/test/built-ins/Object/defineProperty/15.2.3.6-4-319.js
+++ b/test/built-ins/Object/defineProperty/15.2.3.6-4-319.js
@@ -22,17 +22,15 @@ includes: [propertyHelper.js]
     });
     throw new Test262Error("Expected an exception.");
   } catch (e) {
-    verifyEqualTo(arguments, "genericProperty", undefined);
-
-    verifyNotWritable(arguments, "genericProperty");
-
-    verifyEnumerable(arguments, "genericProperty");
-
-    verifyNotConfigurable(arguments, "genericProperty");
-
     if (!(e instanceof TypeError)) {
       throw new Test262Error("Expected TypeError, got " + e);
     }
-
   }
+
+  verifyProperty(arguments, "genericProperty", {
+    value: undefined,
+    writable: false,
+    enumerable: true,
+    configurable: false,
+  });
 }(1, 2, 3));
diff --git a/test/built-ins/Object/defineProperty/15.2.3.6-4-320-1.js b/test/built-ins/Object/defineProperty/15.2.3.6-4-320-1.js
index cebb0b8342..7887cc1b87 100644
--- a/test/built-ins/Object/defineProperty/15.2.3.6-4-320-1.js
+++ b/test/built-ins/Object/defineProperty/15.2.3.6-4-320-1.js
@@ -22,17 +22,15 @@ includes: [propertyHelper.js]
     });
     throw new Test262Error("Expected an exception.");
   } catch (e) {
-    verifyEqualTo(arguments, "genericProperty", undefined);
-
-    verifyNotWritable(arguments, "genericProperty");
-
-    verifyNotEnumerable(arguments, "genericProperty");
-
-    verifyNotConfigurable(arguments, "genericProperty");
-
     if (!(e instanceof TypeError)) {
       throw new Test262Error("Expected TypeError, got " + e);
     }
-
   }
+
+  verifyProperty(arguments, "genericProperty", {
+    value: undefined,
+    writable: false,
+    enumerable: false,
+    configurable: false,
+  });
 }(1, 2, 3));
diff --git a/test/built-ins/Object/defineProperty/15.2.3.6-4-320.js b/test/built-ins/Object/defineProperty/15.2.3.6-4-320.js
index 0502133f05..4c279919f3 100644
--- a/test/built-ins/Object/defineProperty/15.2.3.6-4-320.js
+++ b/test/built-ins/Object/defineProperty/15.2.3.6-4-320.js
@@ -21,19 +21,15 @@ includes: [propertyHelper.js]
     });
     throw new Test262Error("Expected an exception.");
   } catch (e) {
-    verifyEqualTo(arguments, "genericProperty", undefined);
-
-    verifyNotWritable(arguments, "genericProperty");
-
-    verifyNotEnumerable(arguments, "genericProperty");
-
-    verifyNotConfigurable(arguments, "genericProperty");
-
-
     if (!(e instanceof TypeError)) {
       throw new Test262Error("Expected TypeError, got " + e);
     }
-
   }
 
+  verifyProperty(arguments, "genericProperty", {
+    value: undefined,
+    writable: false,
+    enumerable: false,
+    configurable: false,
+  });
 }(1, 2, 3));
diff --git a/test/built-ins/Object/defineProperty/15.2.3.6-4-321-1.js b/test/built-ins/Object/defineProperty/15.2.3.6-4-321-1.js
index 2a49eb3db5..c685519640 100644
--- a/test/built-ins/Object/defineProperty/15.2.3.6-4-321-1.js
+++ b/test/built-ins/Object/defineProperty/15.2.3.6-4-321-1.js
@@ -41,13 +41,13 @@ includes: [propertyHelper.js]
 
     verifyWritable(arguments, "genericProperty", "helpVerifyGet");
 
-    verifyNotEnumerable(arguments, "genericProperty");
-
-    verifyNotConfigurable(arguments, "genericProperty");
-
     if (!(e instanceof TypeError)) {
       throw new Test262Error("Expected TypeError, got " + e);
     }
-
   }
+
+  verifyProperty(arguments, "genericProperty", {
+    enumerable: false,
+    configurable: false,
+  });
 }(1, 2, 3));
diff --git a/test/built-ins/Object/defineProperty/15.2.3.6-4-321.js b/test/built-ins/Object/defineProperty/15.2.3.6-4-321.js
index f00c928059..3e8cbab153 100644
--- a/test/built-ins/Object/defineProperty/15.2.3.6-4-321.js
+++ b/test/built-ins/Object/defineProperty/15.2.3.6-4-321.js
@@ -36,13 +36,13 @@ includes: [propertyHelper.js]
 
     verifyWritable(arguments, "genericProperty", "helpVerifyGet");
 
-    verifyNotEnumerable(arguments, "genericProperty");
-
-    verifyNotConfigurable(arguments, "genericProperty");
-
     if (!(e instanceof TypeError)) {
       throw new Test262Error("Expected TypeError, got " + e);
     }
-
   }
+
+  verifyProperty(arguments, "genericProperty", {
+    enumerable: false,
+    configurable: false,
+  });
 }(1, 2, 3));
diff --git a/test/built-ins/Object/defineProperty/15.2.3.6-4-322-1.js b/test/built-ins/Object/defineProperty/15.2.3.6-4-322-1.js
index 918bf4b5dc..0bc23f8e2e 100644
--- a/test/built-ins/Object/defineProperty/15.2.3.6-4-322-1.js
+++ b/test/built-ins/Object/defineProperty/15.2.3.6-4-322-1.js
@@ -30,13 +30,13 @@ includes: [propertyHelper.js]
   } catch (e) {
     verifyWritable(arguments, "genericProperty", "genericPropertyString");
 
-    verifyNotEnumerable(arguments, "genericProperty");
-
-    verifyNotConfigurable(arguments, "genericProperty");
-
     if (!(e instanceof TypeError)) {
       throw new Test262Error("Expected TypeError, got " + e);
     }
-
   }
+
+  verifyProperty(arguments, "genericProperty", {
+    enumerable: false,
+    configurable: false,
+  });
 }(1, 2, 3));
diff --git a/test/built-ins/Object/defineProperty/15.2.3.6-4-322.js b/test/built-ins/Object/defineProperty/15.2.3.6-4-322.js
index a940aa506b..6190cf8b1c 100644
--- a/test/built-ins/Object/defineProperty/15.2.3.6-4-322.js
+++ b/test/built-ins/Object/defineProperty/15.2.3.6-4-322.js
@@ -29,13 +29,13 @@ includes: [propertyHelper.js]
   } catch (e) {
     verifyWritable(arguments, "genericProperty", "genericPropertyString");
 
-    verifyNotEnumerable(arguments, "genericProperty");
-
-    verifyNotConfigurable(arguments, "genericProperty");
-
     if (!(e instanceof TypeError)) {
       throw new Test262Error("Expected TypeError, got " + e);
     }
-
   }
+
+  verifyProperty(arguments, "genericProperty", {
+    enumerable: false,
+    configurable: false,
+  });
 }(1, 2, 3));
diff --git a/test/built-ins/Object/defineProperty/15.2.3.6-4-323-1.js b/test/built-ins/Object/defineProperty/15.2.3.6-4-323-1.js
index 7bbe5d1d86..f5dbfc9a93 100644
--- a/test/built-ins/Object/defineProperty/15.2.3.6-4-323-1.js
+++ b/test/built-ins/Object/defineProperty/15.2.3.6-4-323-1.js
@@ -32,14 +32,13 @@ includes: [propertyHelper.js]
     }
     verifyWritable(arguments, "genericProperty", "genericPropertyString");
 
-    verifyEnumerable(arguments, "genericProperty");
-
-    verifyNotConfigurable(arguments, "genericProperty");
-
     if (!(e instanceof TypeError)) {
       throw new Test262Error("Expected TypeError, got " + e);
     }
-
   }
 
+  verifyProperty(arguments, "genericProperty", {
+    enumerable: true,
+    configurable: false,
+  });
 }(1, 2, 3));
diff --git a/test/built-ins/Object/defineProperty/15.2.3.6-4-323.js b/test/built-ins/Object/defineProperty/15.2.3.6-4-323.js
index 38dd7166c7..5374376e12 100644
--- a/test/built-ins/Object/defineProperty/15.2.3.6-4-323.js
+++ b/test/built-ins/Object/defineProperty/15.2.3.6-4-323.js
@@ -28,13 +28,13 @@ includes: [propertyHelper.js]
   } catch (e) {
     verifyWritable(arguments, "genericProperty", "genericPropertyString");
 
-    verifyEnumerable(arguments, "genericProperty");
-
-    verifyNotConfigurable(arguments, "genericProperty");
-
     if (!(e instanceof TypeError)) {
       throw new Test262Error("Expected TypeError, got " + e);
     }
-
   }
+
+  verifyProperty(arguments, "genericProperty", {
+    enumerable: true,
+    configurable: false,
+  });
 }(1, 2, 3));
diff --git a/test/built-ins/Object/defineProperty/15.2.3.6-4-324-1.js b/test/built-ins/Object/defineProperty/15.2.3.6-4-324-1.js
index 8bb9cecb08..50d454cda4 100644
--- a/test/built-ins/Object/defineProperty/15.2.3.6-4-324-1.js
+++ b/test/built-ins/Object/defineProperty/15.2.3.6-4-324-1.js
@@ -28,13 +28,13 @@ includes: [propertyHelper.js]
   } catch (e) {
     verifyWritable(arguments, "genericProperty", "genericPropertyString");
 
-    verifyNotEnumerable(arguments, "genericProperty");
-
-    verifyNotConfigurable(arguments, "genericProperty");
-
     if (!(e instanceof TypeError)) {
       throw new Test262Error("Expected TypeError, got " + e);
     }
-
   }
+
+  verifyProperty(arguments, "genericProperty", {
+    enumerable: false,
+    configurable: false,
+  });
 }(1, 2, 3));
diff --git a/test/built-ins/Object/defineProperty/15.2.3.6-4-324.js b/test/built-ins/Object/defineProperty/15.2.3.6-4-324.js
index caab62dbe3..b6dfa0dca6 100644
--- a/test/built-ins/Object/defineProperty/15.2.3.6-4-324.js
+++ b/test/built-ins/Object/defineProperty/15.2.3.6-4-324.js
@@ -27,14 +27,13 @@ includes: [propertyHelper.js]
   } catch (e) {
     verifyWritable(arguments, "genericProperty", "genericPropertyString");
 
-    verifyNotEnumerable(arguments, "genericProperty");
-
-    verifyNotConfigurable(arguments, "genericProperty");
-
     if (!(e instanceof TypeError)) {
       throw new Test262Error("Expected TypeError, got " + e);
     }
-
   }
-  false;
+
+  verifyProperty(arguments, "genericProperty", {
+    enumerable: false,
+    configurable: false,
+  });
 }(1, 2, 3));
diff --git a/test/built-ins/Object/defineProperty/15.2.3.6-4-333-1.js b/test/built-ins/Object/defineProperty/15.2.3.6-4-333-1.js
index 40a30010e5..82248a8dd7 100644
--- a/test/built-ins/Object/defineProperty/15.2.3.6-4-333-1.js
+++ b/test/built-ins/Object/defineProperty/15.2.3.6-4-333-1.js
@@ -24,10 +24,9 @@ Object.defineProperty(obj, "property", {
   value: 1002
 });
 
-verifyEqualTo(obj, "property", 1002);
-
-verifyWritable(obj, "property");
-
-verifyNotEnumerable(obj, "property");
-
-verifyNotConfigurable(obj, "property");
+verifyProperty(obj, "property", {
+  value: 1002,
+  writable: true,
+  enumerable: false,
+  configurable: false,
+});
diff --git a/test/built-ins/Object/defineProperty/15.2.3.6-4-333-2.js b/test/built-ins/Object/defineProperty/15.2.3.6-4-333-2.js
index b6353b226b..1b0ccfa65f 100644
--- a/test/built-ins/Object/defineProperty/15.2.3.6-4-333-2.js
+++ b/test/built-ins/Object/defineProperty/15.2.3.6-4-333-2.js
@@ -24,10 +24,9 @@ Object.defineProperty(obj, "0", {
   value: 1002
 });
 
-verifyEqualTo(obj, "0", 1002);
-
-verifyWritable(obj, "0");
-
-verifyNotEnumerable(obj, "0");
-
-verifyNotConfigurable(obj, "0");
+verifyProperty(obj, "0", {
+  value: 1002,
+  writable: true,
+  enumerable: false,
+  configurable: false,
+});
diff --git a/test/built-ins/Object/defineProperty/15.2.3.6-4-333-3.js b/test/built-ins/Object/defineProperty/15.2.3.6-4-333-3.js
index 5b416a7602..e4792c0d61 100644
--- a/test/built-ins/Object/defineProperty/15.2.3.6-4-333-3.js
+++ b/test/built-ins/Object/defineProperty/15.2.3.6-4-333-3.js
@@ -26,10 +26,9 @@ Object.defineProperty(obj, "property", {
   value: 1002
 });
 
-verifyEqualTo(obj, "property", 1002);
-
-verifyWritable(obj, "property");
-
-verifyNotEnumerable(obj, "property");
-
-verifyNotConfigurable(obj, "property");
+verifyProperty(obj, "property", {
+  value: 1002,
+  writable: true,
+  enumerable: false,
+  configurable: false,
+});
diff --git a/test/built-ins/Object/defineProperty/15.2.3.6-4-333-6.js b/test/built-ins/Object/defineProperty/15.2.3.6-4-333-6.js
index 0d2f0a3a2e..be87dae2e1 100644
--- a/test/built-ins/Object/defineProperty/15.2.3.6-4-333-6.js
+++ b/test/built-ins/Object/defineProperty/15.2.3.6-4-333-6.js
@@ -24,10 +24,9 @@ Object.defineProperty(obj, "0", {
   value: 1002
 });
 
-verifyEqualTo(obj, "0", 1002);
-
-verifyWritable(obj, "0");
-
-verifyNotEnumerable(obj, "0");
-
-verifyNotConfigurable(obj, "0");
+verifyProperty(obj, "0", {
+  value: 1002,
+  writable: true,
+  enumerable: false,
+  configurable: false,
+});
diff --git a/test/built-ins/Object/defineProperty/15.2.3.6-4-333-7.js b/test/built-ins/Object/defineProperty/15.2.3.6-4-333-7.js
index b32f5fc533..4af1ac7508 100644
--- a/test/built-ins/Object/defineProperty/15.2.3.6-4-333-7.js
+++ b/test/built-ins/Object/defineProperty/15.2.3.6-4-333-7.js
@@ -24,10 +24,9 @@ Object.defineProperty(obj, "prop", {
   value: 1002
 });
 
-verifyEqualTo(obj, "prop", 1002);
-
-verifyWritable(obj, "prop");
-
-verifyNotEnumerable(obj, "prop");
-
-verifyNotConfigurable(obj, "prop");
+verifyProperty(obj, "prop", {
+  value: 1002,
+  writable: true,
+  enumerable: false,
+  configurable: false,
+});
diff --git a/test/built-ins/Object/defineProperty/15.2.3.6-4-333-8.js b/test/built-ins/Object/defineProperty/15.2.3.6-4-333-8.js
index 4cebcc068e..48b06c206b 100644
--- a/test/built-ins/Object/defineProperty/15.2.3.6-4-333-8.js
+++ b/test/built-ins/Object/defineProperty/15.2.3.6-4-333-8.js
@@ -26,10 +26,9 @@ Object.defineProperty(obj, "0", {
   value: 1002
 });
 
-verifyEqualTo(obj, "0", 1002);
-
-verifyWritable(obj, "0");
-
-verifyNotEnumerable(obj, "0");
-
-verifyNotConfigurable(obj, "0");
+verifyProperty(obj, "0", {
+  value: 1002,
+  writable: true,
+  enumerable: false,
+  configurable: false,
+});
diff --git a/test/built-ins/Object/defineProperty/15.2.3.6-4-335.js b/test/built-ins/Object/defineProperty/15.2.3.6-4-335.js
index eebfebf57a..33255b2892 100644
--- a/test/built-ins/Object/defineProperty/15.2.3.6-4-335.js
+++ b/test/built-ins/Object/defineProperty/15.2.3.6-4-335.js
@@ -18,6 +18,7 @@ Object.defineProperty(obj, "prop", {
   configurable: false
 });
 
-assert(obj.hasOwnProperty("prop"));
-verifyNotConfigurable(obj, "prop");
-assert.sameValue(obj.prop, 2010);
+verifyProperty(obj, "prop", {
+  value: 2010,
+  configurable: false,
+});
diff --git a/test/built-ins/Object/defineProperty/15.2.3.6-4-349.js b/test/built-ins/Object/defineProperty/15.2.3.6-4-349.js
index bbcfa17b51..1aa5553fcd 100644
--- a/test/built-ins/Object/defineProperty/15.2.3.6-4-349.js
+++ b/test/built-ins/Object/defineProperty/15.2.3.6-4-349.js
@@ -18,6 +18,7 @@ Object.defineProperty(obj, "prop", {
   configurable: false
 });
 
-assert(obj.hasOwnProperty("prop"));
-verifyNotConfigurable(obj, "prop");
-assert.sameValue(obj.prop, 2010);
+verifyProperty(obj, "prop", {
+  value: 2010,
+  configurable: false,
+});
diff --git a/test/built-ins/Object/defineProperty/15.2.3.6-4-354-1.js b/test/built-ins/Object/defineProperty/15.2.3.6-4-354-1.js
index 250dde1b08..872d8c8eff 100644
--- a/test/built-ins/Object/defineProperty/15.2.3.6-4-354-1.js
+++ b/test/built-ins/Object/defineProperty/15.2.3.6-4-354-1.js
@@ -24,10 +24,9 @@ Object.defineProperty(obj, "property", {
   value: 1002
 });
 
-verifyEqualTo(obj, "property", 1002);
-
-verifyNotWritable(obj, "property");
-
-verifyNotEnumerable(obj, "property");
-
-verifyConfigurable(obj, "property");
+verifyProperty(obj, "property", {
+  value: 1002,
+  writable: false,
+  enumerable: false,
+  configurable: true,
+});
diff --git a/test/built-ins/Object/defineProperty/15.2.3.6-4-354-10.js b/test/built-ins/Object/defineProperty/15.2.3.6-4-354-10.js
index 61ff2684d7..39b09c85c5 100644
--- a/test/built-ins/Object/defineProperty/15.2.3.6-4-354-10.js
+++ b/test/built-ins/Object/defineProperty/15.2.3.6-4-354-10.js
@@ -24,10 +24,9 @@ Object.defineProperty(obj, "0", {
   value: 1002
 });
 
-verifyEqualTo(obj, "0", 1002);
-
-verifyNotWritable(obj, "0");
-
-verifyNotEnumerable(obj, "0");
-
-verifyConfigurable(obj, "0");
+verifyProperty(obj, "0", {
+  value: 1002,
+  writable: false,
+  enumerable: false,
+  configurable: true,
+});
diff --git a/test/built-ins/Object/defineProperty/15.2.3.6-4-354-11.js b/test/built-ins/Object/defineProperty/15.2.3.6-4-354-11.js
index 0ee0d5a4ea..b0ff2cd779 100644
--- a/test/built-ins/Object/defineProperty/15.2.3.6-4-354-11.js
+++ b/test/built-ins/Object/defineProperty/15.2.3.6-4-354-11.js
@@ -24,10 +24,9 @@ Object.defineProperty(obj, "prop", {
   value: 1002
 });
 
-verifyEqualTo(obj, "prop", 1002);
-
-verifyNotWritable(obj, "prop");
-
-verifyNotEnumerable(obj, "prop");
-
-verifyConfigurable(obj, "prop");
+verifyProperty(obj, "prop", {
+  value: 1002,
+  writable: false,
+  enumerable: false,
+  configurable: true,
+});
diff --git a/test/built-ins/Object/defineProperty/15.2.3.6-4-354-12.js b/test/built-ins/Object/defineProperty/15.2.3.6-4-354-12.js
index 780fee5e5e..1d5f11528a 100644
--- a/test/built-ins/Object/defineProperty/15.2.3.6-4-354-12.js
+++ b/test/built-ins/Object/defineProperty/15.2.3.6-4-354-12.js
@@ -26,10 +26,9 @@ Object.defineProperty(obj, "0", {
   value: 1002
 });
 
-verifyEqualTo(obj, "0", 1002);
-
-verifyNotWritable(obj, "0");
-
-verifyNotEnumerable(obj, "0");
-
-verifyConfigurable(obj, "0");
+verifyProperty(obj, "0", {
+  value: 1002,
+  writable: false,
+  enumerable: false,
+  configurable: true,
+});
diff --git a/test/built-ins/Object/defineProperty/15.2.3.6-4-354-15.js b/test/built-ins/Object/defineProperty/15.2.3.6-4-354-15.js
index ad1e8d85eb..58bdeb586f 100644
--- a/test/built-ins/Object/defineProperty/15.2.3.6-4-354-15.js
+++ b/test/built-ins/Object/defineProperty/15.2.3.6-4-354-15.js
@@ -19,5 +19,7 @@ Object.defineProperty(obj, "prop", {
   configurable: true
 });
 
-assert.sameValue(obj.prop, 2010);
-verifyNotWritable(obj, "prop");
+verifyProperty(obj, "prop", {
+  value: 2010,
+  writable: false,
+});
diff --git a/test/built-ins/Object/defineProperty/15.2.3.6-4-354-16.js b/test/built-ins/Object/defineProperty/15.2.3.6-4-354-16.js
index 7432ccdd39..1d51c6d30d 100644
--- a/test/built-ins/Object/defineProperty/15.2.3.6-4-354-16.js
+++ b/test/built-ins/Object/defineProperty/15.2.3.6-4-354-16.js
@@ -22,5 +22,7 @@ Object.defineProperty(obj, "0", {
   configurable: true
 });
 
-assert.sameValue(obj[0], 2010);
-verifyNotWritable(obj, "0");
+verifyProperty(obj, "0", {
+  value: 2010,
+  writable: false,
+});
diff --git a/test/built-ins/Object/defineProperty/15.2.3.6-4-354-2.js b/test/built-ins/Object/defineProperty/15.2.3.6-4-354-2.js
index 46bf18f417..c5cf9884fa 100644
--- a/test/built-ins/Object/defineProperty/15.2.3.6-4-354-2.js
+++ b/test/built-ins/Object/defineProperty/15.2.3.6-4-354-2.js
@@ -24,10 +24,9 @@ Object.defineProperty(obj, "0", {
   value: 1002
 });
 
-verifyEqualTo(obj, "0", 1002);
-
-verifyNotWritable(obj, "0");
-
-verifyNotEnumerable(obj, "0");
-
-verifyConfigurable(obj, "0");
+verifyProperty(obj, "0", {
+  value: 1002,
+  writable: false,
+  enumerable: false,
+  configurable: true,
+});
diff --git a/test/built-ins/Object/defineProperty/15.2.3.6-4-354-3.js b/test/built-ins/Object/defineProperty/15.2.3.6-4-354-3.js
index f1f5cb86c6..207428e773 100644
--- a/test/built-ins/Object/defineProperty/15.2.3.6-4-354-3.js
+++ b/test/built-ins/Object/defineProperty/15.2.3.6-4-354-3.js
@@ -25,10 +25,9 @@ Object.defineProperty(obj, "property", {
   value: 1002
 });
 
-verifyEqualTo(obj, "property", 1002);
-
-verifyNotWritable(obj, "property");
-
-verifyNotEnumerable(obj, "property");
-
-verifyConfigurable(obj, "property");
+verifyProperty(obj, "property", {
+  value: 1002,
+  writable: false,
+  enumerable: false,
+  configurable: true,
+});
diff --git a/test/built-ins/Object/defineProperty/15.2.3.6-4-354-6.js b/test/built-ins/Object/defineProperty/15.2.3.6-4-354-6.js
index 0b48c16cce..8ca806d607 100644
--- a/test/built-ins/Object/defineProperty/15.2.3.6-4-354-6.js
+++ b/test/built-ins/Object/defineProperty/15.2.3.6-4-354-6.js
@@ -19,5 +19,7 @@ Object.defineProperty(obj, "0", {
   configurable: true
 });
 
-assert.sameValue(obj[0], 2010);
-verifyNotWritable(obj, "0");
+verifyProperty(obj, "0", {
+  value: 2010,
+  writable: false,
+});
diff --git a/test/built-ins/Object/defineProperty/15.2.3.6-4-354-7.js b/test/built-ins/Object/defineProperty/15.2.3.6-4-354-7.js
index 81fb76e893..d3a5d0c80c 100644
--- a/test/built-ins/Object/defineProperty/15.2.3.6-4-354-7.js
+++ b/test/built-ins/Object/defineProperty/15.2.3.6-4-354-7.js
@@ -21,5 +21,7 @@ Object.defineProperty(obj, "prop", {
   configurable: true
 });
 
-assert.sameValue(obj.prop, 2010);
-verifyNotWritable(obj, "prop");
+verifyProperty(obj, "prop", {
+  value: 2010,
+  writable: false,
+});
diff --git a/test/built-ins/Object/defineProperty/15.2.3.6-4-354.js b/test/built-ins/Object/defineProperty/15.2.3.6-4-354.js
index 712fde363c..14adbea136 100644
--- a/test/built-ins/Object/defineProperty/15.2.3.6-4-354.js
+++ b/test/built-ins/Object/defineProperty/15.2.3.6-4-354.js
@@ -18,5 +18,7 @@ Object.defineProperty(obj, "prop", {
   configurable: true
 });
 
-assert.sameValue(obj.prop, 2010);
-verifyNotWritable(obj, "prop");
+verifyProperty(obj, "prop", {
+  value: 2010,
+  writable: false,
+});
diff --git a/test/built-ins/Object/defineProperty/15.2.3.6-4-361.js b/test/built-ins/Object/defineProperty/15.2.3.6-4-361.js
index 069e007cf6..7127f98de0 100644
--- a/test/built-ins/Object/defineProperty/15.2.3.6-4-361.js
+++ b/test/built-ins/Object/defineProperty/15.2.3.6-4-361.js
@@ -18,5 +18,7 @@ Object.defineProperty(obj, "prop", {
   configurable: false
 });
 
-assert.sameValue(obj.prop, 2010);
-verifyNotWritable(obj, "prop");
+verifyProperty(obj, "prop", {
+  value: 2010,
+  writable: false,
+});
diff --git a/test/built-ins/Object/defineProperty/15.2.3.6-4-363.js b/test/built-ins/Object/defineProperty/15.2.3.6-4-363.js
index 17f928bda2..b9f770412d 100644
--- a/test/built-ins/Object/defineProperty/15.2.3.6-4-363.js
+++ b/test/built-ins/Object/defineProperty/15.2.3.6-4-363.js
@@ -18,5 +18,6 @@ Object.defineProperty(obj, "prop", {
   configurable: false
 });
 
-assert(obj.hasOwnProperty("prop"));
-verifyNotConfigurable(obj, "prop");
+verifyProperty(obj, "prop", {
+  configurable: false,
+});
diff --git a/test/built-ins/Object/defineProperty/15.2.3.6-4-368.js b/test/built-ins/Object/defineProperty/15.2.3.6-4-368.js
index 96db2fbedd..2ba32faf91 100644
--- a/test/built-ins/Object/defineProperty/15.2.3.6-4-368.js
+++ b/test/built-ins/Object/defineProperty/15.2.3.6-4-368.js
@@ -18,5 +18,7 @@ Object.defineProperty(obj, "prop", {
   configurable: true
 });
 
-assert.sameValue(obj.prop, 2010);
-verifyNotWritable(obj, "prop");
+verifyProperty(obj, "prop", {
+  value: 2010,
+  writable: false,
+});
diff --git a/test/built-ins/Object/defineProperty/15.2.3.6-4-375.js b/test/built-ins/Object/defineProperty/15.2.3.6-4-375.js
index 93537a5aeb..57ced4e58b 100644
--- a/test/built-ins/Object/defineProperty/15.2.3.6-4-375.js
+++ b/test/built-ins/Object/defineProperty/15.2.3.6-4-375.js
@@ -18,5 +18,7 @@ Object.defineProperty(obj, "prop", {
   configurable: false
 });
 
-assert.sameValue(obj.prop, 2010);
-verifyNotWritable(obj, "prop");
+verifyProperty(obj, "prop", {
+  value: 2010,
+  writable: false,
+});
diff --git a/test/built-ins/Object/defineProperty/15.2.3.6-4-377.js b/test/built-ins/Object/defineProperty/15.2.3.6-4-377.js
index 7e748275db..2d58b1518e 100644
--- a/test/built-ins/Object/defineProperty/15.2.3.6-4-377.js
+++ b/test/built-ins/Object/defineProperty/15.2.3.6-4-377.js
@@ -18,5 +18,6 @@ Object.defineProperty(obj, "prop", {
   configurable: false
 });
 
-assert(obj.hasOwnProperty("prop"));
-verifyNotConfigurable(obj, "prop");
+verifyProperty(obj, "prop", {
+  configurable: false,
+});
diff --git a/test/built-ins/Object/defineProperty/15.2.3.6-4-38.js b/test/built-ins/Object/defineProperty/15.2.3.6-4-38.js
index 8a2d9ccfd2..867de469ab 100644
--- a/test/built-ins/Object/defineProperty/15.2.3.6-4-38.js
+++ b/test/built-ins/Object/defineProperty/15.2.3.6-4-38.js
@@ -16,13 +16,12 @@ try {
     configurable: true
   });
 
-  verifyEqualTo(Math, "foo", 12);
-
-  verifyNotWritable(Math, "foo");
-
-  verifyNotEnumerable(Math, "foo");
-
-  verifyConfigurable(Math, "foo");
+  verifyProperty(Math, "foo", {
+    value: 12,
+    writable: false,
+    enumerable: false,
+    configurable: true,
+  });
 } finally {
   delete Math.foo;
 }
diff --git a/test/built-ins/Object/defineProperty/15.2.3.6-4-41.js b/test/built-ins/Object/defineProperty/15.2.3.6-4-41.js
index b9c4cb1be7..e066d7666a 100644
--- a/test/built-ins/Object/defineProperty/15.2.3.6-4-41.js
+++ b/test/built-ins/Object/defineProperty/15.2.3.6-4-41.js
@@ -16,12 +16,11 @@ Object.defineProperty(JSON, "foo", {
   configurable: true
 });
 
-verifyEqualTo(JSON, "foo", 12);
-
-verifyNotWritable(JSON, "foo");
-
-verifyNotEnumerable(JSON, "foo");
-
-verifyConfigurable(JSON, "foo");
+verifyProperty(JSON, "foo", {
+  value: 12,
+  writable: false,
+  enumerable: false,
+  configurable: true,
+});
 
 delete JSON.foo;
diff --git a/test/built-ins/Object/defineProperty/15.2.3.6-4-429.js b/test/built-ins/Object/defineProperty/15.2.3.6-4-429.js
index a81c5f63d3..5b153dc5b0 100644
--- a/test/built-ins/Object/defineProperty/15.2.3.6-4-429.js
+++ b/test/built-ins/Object/defineProperty/15.2.3.6-4-429.js
@@ -24,9 +24,9 @@ var desc1 = Object.getOwnPropertyDescriptor(obj, "prop");
 Object.defineProperty(obj, "prop", {
   configurable: false
 });
-var desc2 = Object.getOwnPropertyDescriptor(obj, "prop");
 
-verifyNotConfigurable(obj, "prop");
 assert.sameValue(desc1.configurable, true);
-assert.sameValue(desc2.configurable, false);
-assert(obj.hasOwnProperty("prop"));
+
+verifyProperty(obj, "prop", {
+  configurable: false,
+});
diff --git a/test/built-ins/Object/defineProperty/15.2.3.6-4-434.js b/test/built-ins/Object/defineProperty/15.2.3.6-4-434.js
index 30d4a32574..e40d7f5a96 100644
--- a/test/built-ins/Object/defineProperty/15.2.3.6-4-434.js
+++ b/test/built-ins/Object/defineProperty/15.2.3.6-4-434.js
@@ -19,10 +19,6 @@ Object.defineProperty(obj, "prop", {
   configurable: false
 });
 
-assert(obj.hasOwnProperty("prop"));
-
-var desc = Object.getOwnPropertyDescriptor(obj, "prop");
-
-assert.sameValue(desc.configurable, false);
-
-verifyNotConfigurable(obj, "prop");
+verifyProperty(obj, "prop", {
+  configurable: false,
+});
diff --git a/test/built-ins/Object/defineProperty/15.2.3.6-4-438.js b/test/built-ins/Object/defineProperty/15.2.3.6-4-438.js
index 1ccc9f436d..8dab30577a 100644
--- a/test/built-ins/Object/defineProperty/15.2.3.6-4-438.js
+++ b/test/built-ins/Object/defineProperty/15.2.3.6-4-438.js
@@ -30,12 +30,9 @@ try {
 } catch (e) {
   assert(e instanceof TypeError);
 
-  var desc2 = Object.getOwnPropertyDescriptor(obj, "prop");
-
   assert.sameValue(desc1.configurable, false);
-  assert.sameValue(desc2.configurable, false);
-
-  verifyNotConfigurable(obj, "prop");
-
-  assert(obj.hasOwnProperty("prop"));
 }
+
+verifyProperty(obj, "prop", {
+  configurable: false,
+});
diff --git a/test/built-ins/Object/defineProperty/15.2.3.6-4-447.js b/test/built-ins/Object/defineProperty/15.2.3.6-4-447.js
index 29400f464f..6a8a1980f7 100644
--- a/test/built-ins/Object/defineProperty/15.2.3.6-4-447.js
+++ b/test/built-ins/Object/defineProperty/15.2.3.6-4-447.js
@@ -25,10 +25,8 @@ Object.defineProperty(obj, "prop", {
   configurable: false
 });
 
-var desc2 = Object.getOwnPropertyDescriptor(obj, "prop");
-
 assert.sameValue(desc1.configurable, true);
-assert.sameValue(desc2.configurable, false);
 
-verifyNotConfigurable(obj, "prop");
-assert(obj.hasOwnProperty("prop"));
+verifyProperty(obj, "prop", {
+  configurable: false,
+});
diff --git a/test/built-ins/Object/defineProperty/15.2.3.6-4-45.js b/test/built-ins/Object/defineProperty/15.2.3.6-4-45.js
index 20fabf0abd..1c89f2b36f 100644
--- a/test/built-ins/Object/defineProperty/15.2.3.6-4-45.js
+++ b/test/built-ins/Object/defineProperty/15.2.3.6-4-45.js
@@ -15,10 +15,9 @@ Object.defineProperty(this, "foo", {
   configurable: true
 });
 
-verifyEqualTo(this, "foo", 12);
-
-verifyNotWritable(this, "foo");
-
-verifyNotEnumerable(this, "foo");
-
-verifyConfigurable(this, "foo");
+verifyProperty(this, "foo", {
+  value: 12,
+  writable: false,
+  enumerable: false,
+  configurable: true,
+});
diff --git a/test/built-ins/Object/defineProperty/15.2.3.6-4-452.js b/test/built-ins/Object/defineProperty/15.2.3.6-4-452.js
index e180f9c4c3..fef129c1fe 100644
--- a/test/built-ins/Object/defineProperty/15.2.3.6-4-452.js
+++ b/test/built-ins/Object/defineProperty/15.2.3.6-4-452.js
@@ -19,10 +19,6 @@ Object.defineProperty(obj, "prop", {
   configurable: false
 });
 
-assert(obj.hasOwnProperty("prop"));
-
-var desc = Object.getOwnPropertyDescriptor(obj, "prop");
-
-assert.sameValue(desc.configurable, false);
-
-verifyNotConfigurable(obj, "prop");
+verifyProperty(obj, "prop", {
+  configurable: false,
+});
diff --git a/test/built-ins/Object/defineProperty/15.2.3.6-4-456.js b/test/built-ins/Object/defineProperty/15.2.3.6-4-456.js
index 996b566cfc..ef38d377b1 100644
--- a/test/built-ins/Object/defineProperty/15.2.3.6-4-456.js
+++ b/test/built-ins/Object/defineProperty/15.2.3.6-4-456.js
@@ -30,12 +30,9 @@ try {
 } catch (e) {
   assert(e instanceof TypeError);
 
-  var desc2 = Object.getOwnPropertyDescriptor(obj, "prop");
-
   assert.sameValue(desc1.configurable, false);
-  assert.sameValue(desc2.configurable, false);
-
-  verifyNotConfigurable(obj, "prop");
-
-  assert(obj.hasOwnProperty("prop"));
 }
+
+verifyProperty(obj, "prop", {
+  configurable: false,
+});
diff --git a/test/built-ins/Object/defineProperty/15.2.3.6-4-465.js b/test/built-ins/Object/defineProperty/15.2.3.6-4-465.js
index 52e31f678e..98894492c8 100644
--- a/test/built-ins/Object/defineProperty/15.2.3.6-4-465.js
+++ b/test/built-ins/Object/defineProperty/15.2.3.6-4-465.js
@@ -30,10 +30,8 @@ Object.defineProperty(obj, "prop", {
   configurable: false
 });
 
-var desc2 = Object.getOwnPropertyDescriptor(obj, "prop");
-
 assert.sameValue(desc1.configurable, true);
-assert.sameValue(desc2.configurable, false);
 
-verifyNotConfigurable(obj, "prop");
-assert(obj.hasOwnProperty("prop"));
+verifyProperty(obj, "prop", {
+  configurable: false,
+});
diff --git a/test/built-ins/Object/defineProperty/15.2.3.6-4-47.js b/test/built-ins/Object/defineProperty/15.2.3.6-4-47.js
index 079b505170..5dd798a8d8 100644
--- a/test/built-ins/Object/defineProperty/15.2.3.6-4-47.js
+++ b/test/built-ins/Object/defineProperty/15.2.3.6-4-47.js
@@ -18,10 +18,9 @@ Object.defineProperty(obj, "property", {
   configurable: false
 });
 
-verifyEqualTo(obj, "property", undefined);
-
-verifyWritable(obj, "property");
-
-verifyEnumerable(obj, "property");
-
-verifyNotConfigurable(obj, "property");
+verifyProperty(obj, "property", {
+  value: undefined,
+  writable: true,
+  enumerable: true,
+  configurable: false,
+});
diff --git a/test/built-ins/Object/defineProperty/15.2.3.6-4-470.js b/test/built-ins/Object/defineProperty/15.2.3.6-4-470.js
index d725daa996..cb40023f87 100644
--- a/test/built-ins/Object/defineProperty/15.2.3.6-4-470.js
+++ b/test/built-ins/Object/defineProperty/15.2.3.6-4-470.js
@@ -26,11 +26,8 @@ Object.defineProperty(obj, "prop", {
 
 assert(obj.hasOwnProperty("prop"));
 
-var desc = Object.getOwnPropertyDescriptor(obj, "prop");
-
 verifyNotWritable(obj, "prop");
-verifyNotConfigurable(obj, "prop");
 
-assert.sameValue(desc.configurable, false);
-
-assert(obj.hasOwnProperty("prop"));
+verifyProperty(obj, "prop", {
+  configurable: false,
+});
diff --git a/test/built-ins/Object/defineProperty/15.2.3.6-4-474.js b/test/built-ins/Object/defineProperty/15.2.3.6-4-474.js
index 20533735ab..edb4238dfc 100644
--- a/test/built-ins/Object/defineProperty/15.2.3.6-4-474.js
+++ b/test/built-ins/Object/defineProperty/15.2.3.6-4-474.js
@@ -35,12 +35,9 @@ try {
 } catch (e) {
   assert(e instanceof TypeError);
 
-  var desc2 = Object.getOwnPropertyDescriptor(obj, "prop");
-
   assert.sameValue(desc1.configurable, false);
-  assert.sameValue(desc2.configurable, false);
-
-  verifyNotConfigurable(obj, "prop");
-
-  assert(obj.hasOwnProperty("prop"));
 }
+
+verifyProperty(obj, "prop", {
+  configurable: false,
+});
diff --git a/test/built-ins/Object/defineProperty/15.2.3.6-4-48.js b/test/built-ins/Object/defineProperty/15.2.3.6-4-48.js
index 14b658aad7..6913271426 100644
--- a/test/built-ins/Object/defineProperty/15.2.3.6-4-48.js
+++ b/test/built-ins/Object/defineProperty/15.2.3.6-4-48.js
@@ -18,10 +18,9 @@ Object.defineProperty(obj, "property", {
   configurable: false
 });
 
-verifyEqualTo(obj, "property", 1001);
-
-verifyNotWritable(obj, "property");
-
-verifyEnumerable(obj, "property");
-
-verifyNotConfigurable(obj, "property");
+verifyProperty(obj, "property", {
+  value: 1001,
+  writable: false,
+  enumerable: true,
+  configurable: false,
+});
diff --git a/test/built-ins/Object/defineProperty/15.2.3.6-4-483.js b/test/built-ins/Object/defineProperty/15.2.3.6-4-483.js
index f957a1dd03..fce4fe4043 100644
--- a/test/built-ins/Object/defineProperty/15.2.3.6-4-483.js
+++ b/test/built-ins/Object/defineProperty/15.2.3.6-4-483.js
@@ -30,11 +30,8 @@ Object.defineProperty(obj, "prop", {
   configurable: false
 });
 
-var desc2 = Object.getOwnPropertyDescriptor(obj, "prop");
-
 assert.sameValue(desc1.configurable, true);
-assert.sameValue(desc2.configurable, false);
 
-verifyNotConfigurable(obj, "prop");
-
-assert(obj.hasOwnProperty("prop"));
+verifyProperty(obj, "prop", {
+  configurable: false,
+});
diff --git a/test/built-ins/Object/defineProperty/15.2.3.6-4-488.js b/test/built-ins/Object/defineProperty/15.2.3.6-4-488.js
index feb1564289..7c8e8b1639 100644
--- a/test/built-ins/Object/defineProperty/15.2.3.6-4-488.js
+++ b/test/built-ins/Object/defineProperty/15.2.3.6-4-488.js
@@ -24,11 +24,6 @@ Object.defineProperty(obj, "prop", {
   configurable: false
 });
 
-assert(obj.hasOwnProperty("prop"));
-
-var desc = Object.getOwnPropertyDescriptor(obj, "prop");
-
-verifyNotConfigurable(obj, "prop");
-assert.sameValue(desc.configurable, false);
-
-assert(obj.hasOwnProperty("prop"));
+verifyProperty(obj, "prop", {
+  configurable: false,
+});
diff --git a/test/built-ins/Object/defineProperty/15.2.3.6-4-49.js b/test/built-ins/Object/defineProperty/15.2.3.6-4-49.js
index 98db24fdda..f8fd685677 100644
--- a/test/built-ins/Object/defineProperty/15.2.3.6-4-49.js
+++ b/test/built-ins/Object/defineProperty/15.2.3.6-4-49.js
@@ -17,10 +17,10 @@ Object.defineProperty(obj, "property", {
   writable: true,
   configurable: true
 });
-verifyEqualTo(obj, "property", 1001);
 
-verifyWritable(obj, "property");
-
-verifyNotEnumerable(obj, "property");
-
-verifyConfigurable(obj, "property");
+verifyProperty(obj, "property", {
+  value: 1001,
+  writable: true,
+  enumerable: false,
+  configurable: true,
+});
diff --git a/test/built-ins/Object/defineProperty/15.2.3.6-4-492.js b/test/built-ins/Object/defineProperty/15.2.3.6-4-492.js
index 55d5e0cbf7..e98d9505a5 100644
--- a/test/built-ins/Object/defineProperty/15.2.3.6-4-492.js
+++ b/test/built-ins/Object/defineProperty/15.2.3.6-4-492.js
@@ -35,12 +35,9 @@ try {
 } catch (e) {
   assert(e instanceof TypeError);
 
-  var desc2 = Object.getOwnPropertyDescriptor(obj, "prop");
-
-  verifyNotConfigurable(obj, "prop");
-
   assert.sameValue(desc1.configurable, false);
-  assert.sameValue(desc2.configurable, false);
-
-  assert(obj.hasOwnProperty("prop"));
 }
+
+verifyProperty(obj, "prop", {
+  configurable: false,
+});
diff --git a/test/built-ins/Object/defineProperty/15.2.3.6-4-50.js b/test/built-ins/Object/defineProperty/15.2.3.6-4-50.js
index 71b2c8d1ab..84d2c5cbd1 100644
--- a/test/built-ins/Object/defineProperty/15.2.3.6-4-50.js
+++ b/test/built-ins/Object/defineProperty/15.2.3.6-4-50.js
@@ -17,10 +17,10 @@ Object.defineProperty(obj, "property", {
   writable: true,
   enumerable: true
 });
-verifyEqualTo(obj, "property", 1001);
 
-verifyWritable(obj, "property");
-
-verifyEnumerable(obj, "property");
-
-verifyNotConfigurable(obj, "property");
+verifyProperty(obj, "property", {
+  value: 1001,
+  writable: true,
+  enumerable: true,
+  configurable: false,
+});
diff --git a/test/built-ins/Object/defineProperty/15.2.3.6-4-501.js b/test/built-ins/Object/defineProperty/15.2.3.6-4-501.js
index 8e08bb9076..1b10f4c4d8 100644
--- a/test/built-ins/Object/defineProperty/15.2.3.6-4-501.js
+++ b/test/built-ins/Object/defineProperty/15.2.3.6-4-501.js
@@ -29,12 +29,10 @@ Object.defineProperty(obj, "prop", {
   configurable: false
 });
 
-var desc2 = Object.getOwnPropertyDescriptor(obj, "prop");
-
 assert.sameValue(desc1.configurable, true);
-assert.sameValue(desc2.configurable, false);
 
 verifyNotWritable(obj, "prop");
-verifyNotConfigurable(obj, "prop");
 
-assert(obj.hasOwnProperty("prop"));
+verifyProperty(obj, "prop", {
+  configurable: false,
+});
diff --git a/test/built-ins/Object/defineProperty/15.2.3.6-4-506.js b/test/built-ins/Object/defineProperty/15.2.3.6-4-506.js
index 0156fa1bae..c9cb84f8e4 100644
--- a/test/built-ins/Object/defineProperty/15.2.3.6-4-506.js
+++ b/test/built-ins/Object/defineProperty/15.2.3.6-4-506.js
@@ -23,12 +23,6 @@ Object.defineProperty(obj, "prop", {
   configurable: false
 });
 
-assert(obj.hasOwnProperty("prop"));
-
-var desc = Object.getOwnPropertyDescriptor(obj, "prop");
-
-assert.sameValue(desc.configurable, false);
-
-verifyNotConfigurable(obj, "prop");
-
-assert(obj.hasOwnProperty("prop"));
+verifyProperty(obj, "prop", {
+  configurable: false,
+});
diff --git a/test/built-ins/Object/defineProperty/15.2.3.6-4-51.js b/test/built-ins/Object/defineProperty/15.2.3.6-4-51.js
index 58b2ff240a..d2292c4345 100644
--- a/test/built-ins/Object/defineProperty/15.2.3.6-4-51.js
+++ b/test/built-ins/Object/defineProperty/15.2.3.6-4-51.js
@@ -20,10 +20,9 @@ Object.defineProperty(obj, "property", {
   configurable: false
 });
 
-verifyEqualTo(obj, "property", 1001);
-
-verifyNotWritable(obj, "property");
-
-verifyNotEnumerable(obj, "property");
-
-verifyNotConfigurable(obj, "property");
+verifyProperty(obj, "property", {
+  value: 1001,
+  writable: false,
+  enumerable: false,
+  configurable: false,
+});
diff --git a/test/built-ins/Object/defineProperty/15.2.3.6-4-510.js b/test/built-ins/Object/defineProperty/15.2.3.6-4-510.js
index af4e5108e7..8b6ed9cb20 100644
--- a/test/built-ins/Object/defineProperty/15.2.3.6-4-510.js
+++ b/test/built-ins/Object/defineProperty/15.2.3.6-4-510.js
@@ -34,12 +34,9 @@ try {
 } catch (e) {
   assert(e instanceof TypeError);
 
-  var desc2 = Object.getOwnPropertyDescriptor(obj, "prop");
-
   assert.sameValue(desc1.configurable, false);
-  assert.sameValue(desc2.configurable, false);
-
-  verifyNotConfigurable(obj, "prop");
-
-  assert(obj.hasOwnProperty("prop"));
 }
+
+verifyProperty(obj, "prop", {
+  configurable: false,
+});
diff --git a/test/built-ins/Object/defineProperty/15.2.3.6-4-519.js b/test/built-ins/Object/defineProperty/15.2.3.6-4-519.js
index 98382e84f3..9eec73636e 100644
--- a/test/built-ins/Object/defineProperty/15.2.3.6-4-519.js
+++ b/test/built-ins/Object/defineProperty/15.2.3.6-4-519.js
@@ -29,11 +29,8 @@ Object.defineProperty(obj, "prop", {
   configurable: false
 });
 
-var desc2 = Object.getOwnPropertyDescriptor(obj, "prop");
-
 assert.sameValue(desc1.configurable, true);
-assert.sameValue(desc2.configurable, false);
 
-verifyNotConfigurable(obj, "prop");
-
-assert(obj.hasOwnProperty("prop"));
+verifyProperty(obj, "prop", {
+  configurable: false,
+});
diff --git a/test/built-ins/Object/defineProperty/15.2.3.6-4-52.js b/test/built-ins/Object/defineProperty/15.2.3.6-4-52.js
index 1908bdf015..3c24d642d6 100644
--- a/test/built-ins/Object/defineProperty/15.2.3.6-4-52.js
+++ b/test/built-ins/Object/defineProperty/15.2.3.6-4-52.js
@@ -14,10 +14,9 @@ var obj = {};
 
 Object.defineProperty(obj, "property", {});
 
-verifyEqualTo(obj, "property", undefined);
-
-verifyNotWritable(obj, "property");
-
-verifyNotEnumerable(obj, "property");
-
-verifyNotConfigurable(obj, "property");
+verifyProperty(obj, "property", {
+  value: undefined,
+  writable: false,
+  enumerable: false,
+  configurable: false,
+});
diff --git a/test/built-ins/Object/defineProperty/15.2.3.6-4-524.js b/test/built-ins/Object/defineProperty/15.2.3.6-4-524.js
index 0020bc962e..01a43a11c7 100644
--- a/test/built-ins/Object/defineProperty/15.2.3.6-4-524.js
+++ b/test/built-ins/Object/defineProperty/15.2.3.6-4-524.js
@@ -23,11 +23,6 @@ Object.defineProperty(obj, "prop", {
   configurable: false
 });
 
-assert(obj.hasOwnProperty("prop"));
-var desc = Object.getOwnPropertyDescriptor(obj, "prop");
-
-assert.sameValue(desc.configurable, false);
-
-verifyNotConfigurable(obj, "prop");
-
-assert(obj.hasOwnProperty("prop"));
+verifyProperty(obj, "prop", {
+  configurable: false,
+});
diff --git a/test/built-ins/Object/defineProperty/15.2.3.6-4-528.js b/test/built-ins/Object/defineProperty/15.2.3.6-4-528.js
index c53535ba5f..2dfe6744c3 100644
--- a/test/built-ins/Object/defineProperty/15.2.3.6-4-528.js
+++ b/test/built-ins/Object/defineProperty/15.2.3.6-4-528.js
@@ -34,12 +34,9 @@ try {
 } catch (e) {
   assert(e instanceof TypeError);
 
-  var desc2 = Object.getOwnPropertyDescriptor(obj, "prop");
-
   assert.sameValue(desc1.configurable, false);
-  assert.sameValue(desc2.configurable, false);
-
-  verifyNotConfigurable(obj, "prop");
-
-  assert(obj.hasOwnProperty("prop"));
 }
+
+verifyProperty(obj, "prop", {
+  configurable: false,
+});
diff --git a/test/built-ins/Object/defineProperty/15.2.3.6-4-53.js b/test/built-ins/Object/defineProperty/15.2.3.6-4-53.js
index 454f0f8f5f..c7c66cbbaf 100644
--- a/test/built-ins/Object/defineProperty/15.2.3.6-4-53.js
+++ b/test/built-ins/Object/defineProperty/15.2.3.6-4-53.js
@@ -23,6 +23,7 @@ Object.defineProperty(obj, "property", {
 
 verifyWritable(obj, "property", "setVerifyHelpProp");
 
-verifyEnumerable(obj, "property");
-
-verifyConfigurable(obj, "property");
+verifyProperty(obj, "property", {
+  enumerable: true,
+  configurable: true,
+});
diff --git a/test/built-ins/Object/defineProperty/15.2.3.6-4-531-1.js b/test/built-ins/Object/defineProperty/15.2.3.6-4-531-1.js
index e24cd71d19..3c29b578dc 100644
--- a/test/built-ins/Object/defineProperty/15.2.3.6-4-531-1.js
+++ b/test/built-ins/Object/defineProperty/15.2.3.6-4-531-1.js
@@ -40,6 +40,7 @@ verifyEqualTo(obj, "property", getFunc());
 
 verifyWritable(obj, "property", "verifySetFunction1");
 
-verifyNotEnumerable(obj, "property");
-
-verifyConfigurable(obj, "property");
+verifyProperty(obj, "property", {
+  enumerable: false,
+  configurable: true,
+});
diff --git a/test/built-ins/Object/defineProperty/15.2.3.6-4-531-10.js b/test/built-ins/Object/defineProperty/15.2.3.6-4-531-10.js
index 9d6ac91a6c..207c04853b 100644
--- a/test/built-ins/Object/defineProperty/15.2.3.6-4-531-10.js
+++ b/test/built-ins/Object/defineProperty/15.2.3.6-4-531-10.js
@@ -42,6 +42,7 @@ verifyEqualTo(obj, "0", getFunc());
 
 verifyWritable(obj, "0", "verifySetFunction1");
 
-verifyNotEnumerable(obj, "0");
-
-verifyConfigurable(obj, "0");
+verifyProperty(obj, "0", {
+  enumerable: false,
+  configurable: true,
+});
diff --git a/test/built-ins/Object/defineProperty/15.2.3.6-4-531-11.js b/test/built-ins/Object/defineProperty/15.2.3.6-4-531-11.js
index ed85b1d960..a40275041b 100644
--- a/test/built-ins/Object/defineProperty/15.2.3.6-4-531-11.js
+++ b/test/built-ins/Object/defineProperty/15.2.3.6-4-531-11.js
@@ -41,6 +41,7 @@ verifyEqualTo(obj, "prop", getFunc());
 
 verifyWritable(obj, "prop", "verifySetFunction1");
 
-verifyNotEnumerable(obj, "prop");
-
-verifyConfigurable(obj, "prop");
+verifyProperty(obj, "prop", {
+  enumerable: false,
+  configurable: true,
+});
diff --git a/test/built-ins/Object/defineProperty/15.2.3.6-4-531-12.js b/test/built-ins/Object/defineProperty/15.2.3.6-4-531-12.js
index 2cb8b6a77c..fbd47b4416 100644
--- a/test/built-ins/Object/defineProperty/15.2.3.6-4-531-12.js
+++ b/test/built-ins/Object/defineProperty/15.2.3.6-4-531-12.js
@@ -43,6 +43,7 @@ verifyEqualTo(obj, "0", getFunc());
 
 verifyWritable(obj, "0", "verifySetFunction1");
 
-verifyNotEnumerable(obj, "0");
-
-verifyConfigurable(obj, "0");
+verifyProperty(obj, "0", {
+  enumerable: false,
+  configurable: true,
+});
diff --git a/test/built-ins/Object/defineProperty/15.2.3.6-4-531-2.js b/test/built-ins/Object/defineProperty/15.2.3.6-4-531-2.js
index 16bd7a1994..09e8538483 100644
--- a/test/built-ins/Object/defineProperty/15.2.3.6-4-531-2.js
+++ b/test/built-ins/Object/defineProperty/15.2.3.6-4-531-2.js
@@ -42,6 +42,7 @@ verifyEqualTo(obj, "0", getFunc());
 
 verifyWritable(obj, "0", "verifySetFunction1");
 
-verifyNotEnumerable(obj, "0");
-
-verifyConfigurable(obj, "0");
+verifyProperty(obj, "0", {
+  enumerable: false,
+  configurable: true,
+});
diff --git a/test/built-ins/Object/defineProperty/15.2.3.6-4-531-3.js b/test/built-ins/Object/defineProperty/15.2.3.6-4-531-3.js
index cc97b6371a..fb42381143 100644
--- a/test/built-ins/Object/defineProperty/15.2.3.6-4-531-3.js
+++ b/test/built-ins/Object/defineProperty/15.2.3.6-4-531-3.js
@@ -43,6 +43,7 @@ verifyEqualTo(obj, "property", getFunc());
 
 verifyWritable(obj, "property", "verifySetFunction1");
 
-verifyNotEnumerable(obj, "property");
-
-verifyConfigurable(obj, "property");
+verifyProperty(obj, "property", {
+  enumerable: false,
+  configurable: true,
+});
diff --git a/test/built-ins/Object/defineProperty/15.2.3.6-4-537.js b/test/built-ins/Object/defineProperty/15.2.3.6-4-537.js
index 15de96a3d0..3c14595768 100644
--- a/test/built-ins/Object/defineProperty/15.2.3.6-4-537.js
+++ b/test/built-ins/Object/defineProperty/15.2.3.6-4-537.js
@@ -34,9 +34,9 @@ var desc1 = Object.getOwnPropertyDescriptor(obj, "prop");
 Object.defineProperty(obj, "prop", {
   configurable: false
 });
-var desc2 = Object.getOwnPropertyDescriptor(obj, "prop");
 
-verifyNotConfigurable(obj, "prop");
 assert.sameValue(desc1.configurable, true);
-assert.sameValue(desc2.configurable, false);
-assert(obj.hasOwnProperty("prop"));
+
+verifyProperty(obj, "prop", {
+  configurable: false,
+});
diff --git a/test/built-ins/Object/defineProperty/15.2.3.6-4-538-1.js b/test/built-ins/Object/defineProperty/15.2.3.6-4-538-1.js
index 585a7a6c0d..b416039d96 100644
--- a/test/built-ins/Object/defineProperty/15.2.3.6-4-538-1.js
+++ b/test/built-ins/Object/defineProperty/15.2.3.6-4-538-1.js
@@ -54,6 +54,7 @@ verifyEqualTo(obj, "0", 1001);
 
 verifyNotWritable(obj, "0");
 
-verifyEnumerable(obj, "0");
-
-verifyConfigurable(obj, "0");
+verifyProperty(obj, "0", {
+  enumerable: true,
+  configurable: true,
+});
diff --git a/test/built-ins/Object/defineProperty/15.2.3.6-4-538-2.js b/test/built-ins/Object/defineProperty/15.2.3.6-4-538-2.js
index 7e7a31eb01..6049cfe013 100644
--- a/test/built-ins/Object/defineProperty/15.2.3.6-4-538-2.js
+++ b/test/built-ins/Object/defineProperty/15.2.3.6-4-538-2.js
@@ -56,6 +56,7 @@ verifyEqualTo(obj, "prop", 1001);
 
 verifyNotWritable(obj, "prop");
 
-verifyEnumerable(obj, "prop");
-
-verifyConfigurable(obj, "prop");
+verifyProperty(obj, "prop", {
+  enumerable: true,
+  configurable: true,
+});
diff --git a/test/built-ins/Object/defineProperty/15.2.3.6-4-538-5.js b/test/built-ins/Object/defineProperty/15.2.3.6-4-538-5.js
index 86e3bc4186..893b38a959 100644
--- a/test/built-ins/Object/defineProperty/15.2.3.6-4-538-5.js
+++ b/test/built-ins/Object/defineProperty/15.2.3.6-4-538-5.js
@@ -55,6 +55,7 @@ verifyEqualTo(obj, "prop", 1001);
 
 verifyNotWritable(obj, "prop");
 
-verifyEnumerable(obj, "prop");
-
-verifyConfigurable(obj, "prop");
+verifyProperty(obj, "prop", {
+  enumerable: true,
+  configurable: true,
+});
diff --git a/test/built-ins/Object/defineProperty/15.2.3.6-4-538-6.js b/test/built-ins/Object/defineProperty/15.2.3.6-4-538-6.js
index 5f90f5676a..1569f7dbd7 100644
--- a/test/built-ins/Object/defineProperty/15.2.3.6-4-538-6.js
+++ b/test/built-ins/Object/defineProperty/15.2.3.6-4-538-6.js
@@ -56,6 +56,7 @@ verifyEqualTo(obj, "0", 1001);
 
 verifyNotWritable(obj, "0");
 
-verifyEnumerable(obj, "0");
-
-verifyConfigurable(obj, "0");
+verifyProperty(obj, "0", {
+  enumerable: true,
+  configurable: true,
+});
diff --git a/test/built-ins/Object/defineProperty/15.2.3.6-4-538.js b/test/built-ins/Object/defineProperty/15.2.3.6-4-538.js
index 16f883a9b4..81f9a66aed 100644
--- a/test/built-ins/Object/defineProperty/15.2.3.6-4-538.js
+++ b/test/built-ins/Object/defineProperty/15.2.3.6-4-538.js
@@ -51,6 +51,7 @@ verifyEqualTo(obj, "prop", 1001);
 
 verifyNotWritable(obj, "prop");
 
-verifyEnumerable(obj, "prop");
-
-verifyConfigurable(obj, "prop");
+verifyProperty(obj, "prop", {
+  enumerable: true,
+  configurable: true,
+});
diff --git a/test/built-ins/Object/defineProperty/15.2.3.6-4-54.js b/test/built-ins/Object/defineProperty/15.2.3.6-4-54.js
index 6fa06bee3b..76ffb46bbf 100644
--- a/test/built-ins/Object/defineProperty/15.2.3.6-4-54.js
+++ b/test/built-ins/Object/defineProperty/15.2.3.6-4-54.js
@@ -26,5 +26,7 @@ assert.sameValue(obj.property, "property");
 var desc = Object.getOwnPropertyDescriptor(obj, "property");
 assert.sameValue(typeof desc.set, "undefined");
 
-verifyNotEnumerable(obj, "property");
-verifyNotConfigurable(obj, "property");
+verifyProperty(obj, "property", {
+  enumerable: false,
+  configurable: false,
+});
diff --git a/test/built-ins/Object/defineProperty/15.2.3.6-4-540-1.js b/test/built-ins/Object/defineProperty/15.2.3.6-4-540-1.js
index 0a9fea9843..f5f0f63fb3 100644
--- a/test/built-ins/Object/defineProperty/15.2.3.6-4-540-1.js
+++ b/test/built-ins/Object/defineProperty/15.2.3.6-4-540-1.js
@@ -38,12 +38,13 @@ try {
   verifyEqualTo(obj, "property", getFunc());
 
   verifyWritable(obj, "property", "verifySetFunction");
-
-  verifyNotEnumerable(obj, "property");
-
-  verifyNotConfigurable(obj, "property");
 }
 
+verifyProperty(obj, "property", {
+  enumerable: false,
+  configurable: false,
+});
+
 try {
   Object.defineProperty(obj, "property", {
     set: function(value) {
@@ -59,12 +60,12 @@ try {
 
   verifyWritable(obj, "property", "verifySetFunction");
 
-  verifyNotEnumerable(obj, "property");
-
-  verifyNotConfigurable(obj, "property");
-
   if (!(e instanceof TypeError)) {
     throw new Test262Error("Expected TypeError, got " + e);
   }
-
 }
+
+verifyProperty(obj, "property", {
+  enumerable: false,
+  configurable: false,
+});
diff --git a/test/built-ins/Object/defineProperty/15.2.3.6-4-540-2.js b/test/built-ins/Object/defineProperty/15.2.3.6-4-540-2.js
index 14b503ae68..fa89541ef2 100644
--- a/test/built-ins/Object/defineProperty/15.2.3.6-4-540-2.js
+++ b/test/built-ins/Object/defineProperty/15.2.3.6-4-540-2.js
@@ -38,12 +38,13 @@ try {
   verifyEqualTo(obj, "0", getFunc());
 
   verifyWritable(obj, "0", "verifySetFunction");
-
-  verifyNotEnumerable(obj, "0");
-
-  verifyNotConfigurable(obj, "0");
 }
 
+verifyProperty(obj, "0", {
+  enumerable: false,
+  configurable: false,
+});
+
 try {
   Object.defineProperty(obj, "0", {
     set: function(value) {
@@ -59,12 +60,12 @@ try {
 
   verifyWritable(obj, "0", "verifySetFunction");
 
-  verifyNotEnumerable(obj, "0");
-
-  verifyNotConfigurable(obj, "0");
-
   if (!(e instanceof TypeError)) {
     throw new Test262Error("Expected TypeError, got " + e);
   }
-
 }
+
+verifyProperty(obj, "0", {
+  enumerable: false,
+  configurable: false,
+});
diff --git a/test/built-ins/Object/defineProperty/15.2.3.6-4-540-3.js b/test/built-ins/Object/defineProperty/15.2.3.6-4-540-3.js
index 507a9f6ab8..fb35825d33 100644
--- a/test/built-ins/Object/defineProperty/15.2.3.6-4-540-3.js
+++ b/test/built-ins/Object/defineProperty/15.2.3.6-4-540-3.js
@@ -39,12 +39,13 @@ try {
   verifyEqualTo(obj, "property", getFunc());
 
   verifyWritable(obj, "property", "verifySetFunction");
-
-  verifyNotEnumerable(obj, "property");
-
-  verifyNotConfigurable(obj, "property");
 }
 
+verifyProperty(obj, "property", {
+  enumerable: false,
+  configurable: false,
+});
+
 try {
   Object.defineProperty(obj, "property", {
     set: function(value) {
@@ -61,12 +62,12 @@ try {
 
   verifyWritable(obj, "property", "verifySetFunction");
 
-  verifyNotEnumerable(obj, "property");
-
-  verifyNotConfigurable(obj, "property");
-
   if (!(e instanceof TypeError)) {
     throw new Test262Error("Expected TypeError, got " + e);
   }
-
 }
+
+verifyProperty(obj, "property", {
+  enumerable: false,
+  configurable: false,
+});
diff --git a/test/built-ins/Object/defineProperty/15.2.3.6-4-540-6.js b/test/built-ins/Object/defineProperty/15.2.3.6-4-540-6.js
index cb6c76f337..83c8ed5636 100644
--- a/test/built-ins/Object/defineProperty/15.2.3.6-4-540-6.js
+++ b/test/built-ins/Object/defineProperty/15.2.3.6-4-540-6.js
@@ -39,12 +39,13 @@ try {
   verifyEqualTo(obj, "0", getFunc());
 
   verifyWritable(obj, "0", "verifySetFunction");
-
-  verifyNotEnumerable(obj, "0");
-
-  verifyNotConfigurable(obj, "0");
 }
 
+verifyProperty(obj, "0", {
+  enumerable: false,
+  configurable: false,
+});
+
 try {
   Object.defineProperty(obj, "0", {
     set: function(value) {
@@ -60,13 +61,12 @@ try {
 
   verifyWritable(obj, "0", "verifySetFunction");
 
-  verifyNotEnumerable(obj, "0");
-
-  verifyNotConfigurable(obj, "0");
-
-
   if (!(e instanceof TypeError)) {
     throw new Test262Error("Expected TypeError, got " + e);
   }
-
 }
+
+verifyProperty(obj, "0", {
+  enumerable: false,
+  configurable: false,
+});
diff --git a/test/built-ins/Object/defineProperty/15.2.3.6-4-540-7.js b/test/built-ins/Object/defineProperty/15.2.3.6-4-540-7.js
index edd742881c..5050fa0768 100644
--- a/test/built-ins/Object/defineProperty/15.2.3.6-4-540-7.js
+++ b/test/built-ins/Object/defineProperty/15.2.3.6-4-540-7.js
@@ -38,12 +38,13 @@ try {
   verifyEqualTo(obj, "prop", getFunc());
 
   verifyWritable(obj, "prop", "verifySetFunction");
-
-  verifyNotEnumerable(obj, "prop");
-
-  verifyNotConfigurable(obj, "prop");
 }
 
+verifyProperty(obj, "prop", {
+  enumerable: false,
+  configurable: false,
+});
+
 try {
   Object.defineProperty(obj, "prop", {
     set: function(value) {
@@ -60,13 +61,12 @@ try {
 
   verifyWritable(obj, "prop", "verifySetFunction");
 
-  verifyNotEnumerable(obj, "prop");
-
-  verifyNotConfigurable(obj, "prop");
-
-
   if (!(e1 instanceof TypeError)) {
     throw new Test262Error("Expected TypeError, got " + e1);
   }
-
 }
+
+verifyProperty(obj, "prop", {
+  enumerable: false,
+  configurable: false,
+});
diff --git a/test/built-ins/Object/defineProperty/15.2.3.6-4-540-8.js b/test/built-ins/Object/defineProperty/15.2.3.6-4-540-8.js
index ab4b8c8b0e..66923975f6 100644
--- a/test/built-ins/Object/defineProperty/15.2.3.6-4-540-8.js
+++ b/test/built-ins/Object/defineProperty/15.2.3.6-4-540-8.js
@@ -40,12 +40,13 @@ try {
   verifyEqualTo(obj, "0", getFunc());
 
   verifyWritable(obj, "0", "verifySetFunction");
-
-  verifyNotEnumerable(obj, "0");
-
-  verifyNotConfigurable(obj, "0");
 }
 
+verifyProperty(obj, "0", {
+  enumerable: false,
+  configurable: false,
+});
+
 try {
   Object.defineProperty(obj, "0", {
     set: function(value) {
@@ -61,12 +62,12 @@ try {
 
   verifyWritable(obj, "0", "verifySetFunction");
 
-  verifyNotEnumerable(obj, "0");
-
-  verifyNotConfigurable(obj, "0");
-
   if (!(e instanceof TypeError)) {
     throw new Test262Error("Expected TypeError, got " + e);
   }
-
 }
+
+verifyProperty(obj, "0", {
+  enumerable: false,
+  configurable: false,
+});
diff --git a/test/built-ins/Object/defineProperty/15.2.3.6-4-542.js b/test/built-ins/Object/defineProperty/15.2.3.6-4-542.js
index 900872e59d..63bc7484c7 100644
--- a/test/built-ins/Object/defineProperty/15.2.3.6-4-542.js
+++ b/test/built-ins/Object/defineProperty/15.2.3.6-4-542.js
@@ -28,5 +28,6 @@ Object.defineProperty(obj, "prop", {
   configurable: false
 });
 
-assert(obj.hasOwnProperty("prop"));
-verifyNotConfigurable(obj, "prop");
+verifyProperty(obj, "prop", {
+  configurable: false,
+});
diff --git a/test/built-ins/Object/defineProperty/15.2.3.6-4-546.js b/test/built-ins/Object/defineProperty/15.2.3.6-4-546.js
index 4bcc2a7234..4e5c3161d3 100644
--- a/test/built-ins/Object/defineProperty/15.2.3.6-4-546.js
+++ b/test/built-ins/Object/defineProperty/15.2.3.6-4-546.js
@@ -29,6 +29,7 @@ Object.defineProperty(obj, "prop", {
   configurable: false
 });
 var desc1 = Object.getOwnPropertyDescriptor(obj, "prop");
+assert.sameValue(desc1.configurable, false);
 
 try {
   Object.defineProperty(obj, "prop", {
@@ -38,10 +39,8 @@ try {
   throw new Test262Error("Expected TypeError");
 } catch (e) {
   assert(e instanceof TypeError);
-  assert.sameValue(desc1.configurable, false);
-
-  var desc2 = Object.getOwnPropertyDescriptor(obj, "prop");
-  assert.sameValue(desc2.configurable, false);
-
-  verifyNotConfigurable(obj, "prop");
 }
+
+verifyProperty(obj, "prop", {
+  configurable: false,
+});
diff --git a/test/built-ins/Object/defineProperty/15.2.3.6-4-547-1.js b/test/built-ins/Object/defineProperty/15.2.3.6-4-547-1.js
index ddcb88bea7..5bd0c31130 100644
--- a/test/built-ins/Object/defineProperty/15.2.3.6-4-547-1.js
+++ b/test/built-ins/Object/defineProperty/15.2.3.6-4-547-1.js
@@ -51,13 +51,12 @@ try {
 
   verifyWritable(obj, "0", "verifySetFunc");
 
-  verifyEnumerable(obj, "0");
-
-  verifyNotConfigurable(obj, "0");
-
-
   if (!(e instanceof TypeError)) {
     throw new Test262Error("Expected TypeError, got " + e);
   }
-
 }
+
+verifyProperty(obj, "0", {
+  enumerable: true,
+  configurable: false,
+});
diff --git a/test/built-ins/Object/defineProperty/15.2.3.6-4-547-2.js b/test/built-ins/Object/defineProperty/15.2.3.6-4-547-2.js
index f555557321..c61deba9d6 100644
--- a/test/built-ins/Object/defineProperty/15.2.3.6-4-547-2.js
+++ b/test/built-ins/Object/defineProperty/15.2.3.6-4-547-2.js
@@ -53,13 +53,12 @@ try {
 
   verifyWritable(obj, "prop", "verifySetFunc");
 
-  verifyEnumerable(obj, "prop");
-
-  verifyNotConfigurable(obj, "prop");
-
-
   if (!(e instanceof TypeError)) {
     throw new Test262Error("Expected TypeError, got " + e);
   }
-
 }
+
+verifyProperty(obj, "prop", {
+  enumerable: true,
+  configurable: false,
+});
diff --git a/test/built-ins/Object/defineProperty/15.2.3.6-4-547-3.js b/test/built-ins/Object/defineProperty/15.2.3.6-4-547-3.js
index fa61275260..ca9005eec2 100644
--- a/test/built-ins/Object/defineProperty/15.2.3.6-4-547-3.js
+++ b/test/built-ins/Object/defineProperty/15.2.3.6-4-547-3.js
@@ -51,12 +51,13 @@ try {
 
   verifyWritable(obj, "prop", "verifySetFunc");
 
-  verifyEnumerable(obj, "prop");
-
-  verifyNotConfigurable(obj, "prop");
-
   if (!(e instanceof TypeError)) {
     throw new Test262Error("Expected TypeError, got " + e);
   }
 
 }
+
+verifyProperty(obj, "prop", {
+  enumerable: true,
+  configurable: false,
+});
diff --git a/test/built-ins/Object/defineProperty/15.2.3.6-4-547-4.js b/test/built-ins/Object/defineProperty/15.2.3.6-4-547-4.js
index a2af81f61a..0e7858cee8 100644
--- a/test/built-ins/Object/defineProperty/15.2.3.6-4-547-4.js
+++ b/test/built-ins/Object/defineProperty/15.2.3.6-4-547-4.js
@@ -51,13 +51,12 @@ try {
 
   verifyWritable(obj, "0", "verifySetFunc");
 
-  verifyEnumerable(obj, "0");
-
-  verifyNotConfigurable(obj, "0");
-
-
   if (!(e instanceof TypeError)) {
     throw new Test262Error("Expected TypeError, got " + e);
   }
-
 }
+
+verifyProperty(obj, "0", {
+  enumerable: true,
+  configurable: false,
+});
diff --git a/test/built-ins/Object/defineProperty/15.2.3.6-4-55.js b/test/built-ins/Object/defineProperty/15.2.3.6-4-55.js
index 3453d91984..029f8804cf 100644
--- a/test/built-ins/Object/defineProperty/15.2.3.6-4-55.js
+++ b/test/built-ins/Object/defineProperty/15.2.3.6-4-55.js
@@ -28,6 +28,7 @@ verifyEqualTo(obj, "property", getFunc());
 
 verifyWritable(obj, "property", "setVerifyHelpProp");
 
-verifyNotEnumerable(obj, "property");
-
-verifyConfigurable(obj, "property");
+verifyProperty(obj, "property", {
+  enumerable: false,
+  configurable: true,
+});
diff --git a/test/built-ins/Object/defineProperty/15.2.3.6-4-555.js b/test/built-ins/Object/defineProperty/15.2.3.6-4-555.js
index 89dbef084e..191c9d45a0 100644
--- a/test/built-ins/Object/defineProperty/15.2.3.6-4-555.js
+++ b/test/built-ins/Object/defineProperty/15.2.3.6-4-555.js
@@ -36,4 +36,6 @@ Object.defineProperty(obj, "prop", {
   configurable: false
 });
 
-verifyNotConfigurable(obj, "prop");
+verifyProperty(obj, "prop", {
+  configurable: false,
+});
diff --git a/test/built-ins/Object/defineProperty/15.2.3.6-4-56.js b/test/built-ins/Object/defineProperty/15.2.3.6-4-56.js
index 6e0ccaa92e..347fbb74af 100644
--- a/test/built-ins/Object/defineProperty/15.2.3.6-4-56.js
+++ b/test/built-ins/Object/defineProperty/15.2.3.6-4-56.js
@@ -27,6 +27,7 @@ verifyEqualTo(obj, "property", getFunc());
 
 verifyWritable(obj, "property", "setVerifyHelpProp");
 
-verifyEnumerable(obj, "property");
-
-verifyNotConfigurable(obj, "property");
+verifyProperty(obj, "property", {
+  enumerable: true,
+  configurable: false,
+});
diff --git a/test/built-ins/Object/defineProperty/15.2.3.6-4-560.js b/test/built-ins/Object/defineProperty/15.2.3.6-4-560.js
index 75751e6f39..5d1a6d5e47 100644
--- a/test/built-ins/Object/defineProperty/15.2.3.6-4-560.js
+++ b/test/built-ins/Object/defineProperty/15.2.3.6-4-560.js
@@ -28,5 +28,6 @@ Object.defineProperty(obj, "prop", {
   configurable: false
 });
 
-assert(obj.hasOwnProperty("prop"));
-verifyNotConfigurable(obj, "prop");
+verifyProperty(obj, "prop", {
+  configurable: false,
+});
diff --git a/test/built-ins/Object/defineProperty/15.2.3.6-4-564.js b/test/built-ins/Object/defineProperty/15.2.3.6-4-564.js
index 7b17cd4992..7145fbb1e0 100644
--- a/test/built-ins/Object/defineProperty/15.2.3.6-4-564.js
+++ b/test/built-ins/Object/defineProperty/15.2.3.6-4-564.js
@@ -28,7 +28,6 @@ Object.defineProperty(obj, "prop", {
   enumerable: false,
   configurable: false
 });
-var desc1 = Object.getOwnPropertyDescriptor(obj, "prop");
 
 try {
   Object.defineProperty(obj, "prop", {
@@ -38,6 +37,8 @@ try {
   throw new Test262Error("Expected TypeError");
 } catch (e) {
   assert(e instanceof TypeError);
-  assert.sameValue(desc1.configurable, false);
-  verifyNotConfigurable(obj, "prop");
 }
+
+verifyProperty(obj, "prop", {
+  configurable: false,
+});
diff --git a/test/built-ins/Object/defineProperty/15.2.3.6-4-57.js b/test/built-ins/Object/defineProperty/15.2.3.6-4-57.js
index e94a09d884..30d3ccce9e 100644
--- a/test/built-ins/Object/defineProperty/15.2.3.6-4-57.js
+++ b/test/built-ins/Object/defineProperty/15.2.3.6-4-57.js
@@ -37,6 +37,7 @@ verifyEqualTo(obj, "property", getFunc());
 
 verifyWritable(obj, "property", "setVerifyHelpProp");
 
-verifyNotEnumerable(obj, "property");
-
-verifyNotConfigurable(obj, "property");
+verifyProperty(obj, "property", {
+  enumerable: false,
+  configurable: false,
+});
diff --git a/test/built-ins/Object/defineProperty/15.2.3.6-4-58.js b/test/built-ins/Object/defineProperty/15.2.3.6-4-58.js
index 4fa1be7baa..e20c4bb661 100644
--- a/test/built-ins/Object/defineProperty/15.2.3.6-4-58.js
+++ b/test/built-ins/Object/defineProperty/15.2.3.6-4-58.js
@@ -15,10 +15,10 @@ var obj = {};
 obj.foo = 101; // default value of attributes: writable: true, configurable: true, enumerable: true
 
 Object.defineProperty(obj, "foo", {});
-verifyEqualTo(obj, "foo", 101);
 
-verifyWritable(obj, "foo");
-
-verifyEnumerable(obj, "foo");
-
-verifyConfigurable(obj, "foo");
+verifyProperty(obj, "foo", {
+  value: 101,
+  writable: true,
+  enumerable: true,
+  configurable: true,
+});
diff --git a/test/built-ins/Object/defineProperty/15.2.3.6-4-59.js b/test/built-ins/Object/defineProperty/15.2.3.6-4-59.js
index e8eeb3ca6d..c855746479 100644
--- a/test/built-ins/Object/defineProperty/15.2.3.6-4-59.js
+++ b/test/built-ins/Object/defineProperty/15.2.3.6-4-59.js
@@ -30,6 +30,7 @@ verifyEqualTo(obj, "foo", getFunc());
 
 verifyWritable(obj, "foo", "helpVerifySet");
 
-verifyNotEnumerable(obj, "foo");
-
-verifyNotConfigurable(obj, "foo");
+verifyProperty(obj, "foo", {
+  enumerable: false,
+  configurable: false,
+});
diff --git a/test/built-ins/Object/defineProperty/15.2.3.6-4-60.js b/test/built-ins/Object/defineProperty/15.2.3.6-4-60.js
index 12e6d66daa..a65224074e 100644
--- a/test/built-ins/Object/defineProperty/15.2.3.6-4-60.js
+++ b/test/built-ins/Object/defineProperty/15.2.3.6-4-60.js
@@ -17,10 +17,10 @@ obj.foo = 101; // default value of attributes: writable: true, configurable: tru
 Object.defineProperty(obj, "foo", {
   value: "abc"
 });
-verifyEqualTo(obj, "foo", "abc");
 
-verifyWritable(obj, "foo");
-
-verifyEnumerable(obj, "foo");
-
-verifyConfigurable(obj, "foo");
+verifyProperty(obj, "foo", {
+  value: "abc",
+  writable: true,
+  enumerable: true,
+  configurable: true,
+});
diff --git a/test/built-ins/Object/defineProperty/15.2.3.6-4-61.js b/test/built-ins/Object/defineProperty/15.2.3.6-4-61.js
index 59ece60977..1adaf2312c 100644
--- a/test/built-ins/Object/defineProperty/15.2.3.6-4-61.js
+++ b/test/built-ins/Object/defineProperty/15.2.3.6-4-61.js
@@ -19,10 +19,10 @@ Object.defineProperty(obj, "foo", {
 Object.defineProperty(obj, "foo", {
   value: undefined
 });
-verifyEqualTo(obj, "foo", undefined);
 
-verifyNotWritable(obj, "foo");
-
-verifyNotEnumerable(obj, "foo");
-
-verifyNotConfigurable(obj, "foo");
+verifyProperty(obj, "foo", {
+  value: undefined,
+  writable: false,
+  enumerable: false,
+  configurable: false,
+});
diff --git a/test/built-ins/Object/defineProperty/15.2.3.6-4-62.js b/test/built-ins/Object/defineProperty/15.2.3.6-4-62.js
index 34ae7d592b..8cee359add 100644
--- a/test/built-ins/Object/defineProperty/15.2.3.6-4-62.js
+++ b/test/built-ins/Object/defineProperty/15.2.3.6-4-62.js
@@ -19,10 +19,10 @@ Object.defineProperty(obj, "foo", {
 Object.defineProperty(obj, "foo", {
   value: null
 });
-verifyEqualTo(obj, "foo", null);
 
-verifyNotWritable(obj, "foo");
-
-verifyNotEnumerable(obj, "foo");
-
-verifyNotConfigurable(obj, "foo");
+verifyProperty(obj, "foo", {
+  value: null,
+  writable: false,
+  enumerable: false,
+  configurable: false,
+});
diff --git a/test/built-ins/Object/defineProperty/15.2.3.6-4-63.js b/test/built-ins/Object/defineProperty/15.2.3.6-4-63.js
index a336364bb1..42ae257345 100644
--- a/test/built-ins/Object/defineProperty/15.2.3.6-4-63.js
+++ b/test/built-ins/Object/defineProperty/15.2.3.6-4-63.js
@@ -19,10 +19,9 @@ Object.defineProperty(obj, "foo", {
   value: NaN
 });
 
-assert.sameValue(obj.foo, NaN);
-
-verifyNotWritable(obj, "foo");
-
-verifyNotEnumerable(obj, "foo");
-
-verifyNotConfigurable(obj, "foo");
+verifyProperty(obj, "foo", {
+  value: NaN,
+  writable: false,
+  enumerable: false,
+  configurable: false,
+});
diff --git a/test/built-ins/Object/defineProperty/15.2.3.6-4-64.js b/test/built-ins/Object/defineProperty/15.2.3.6-4-64.js
index ea10286897..6dc9e027df 100644
--- a/test/built-ins/Object/defineProperty/15.2.3.6-4-64.js
+++ b/test/built-ins/Object/defineProperty/15.2.3.6-4-64.js
@@ -23,16 +23,14 @@ try {
   throw new Test262Error("Expected an exception.");
 } catch (e) {
 
-  verifyEqualTo(obj, "foo", -0);
-
-  verifyNotWritable(obj, "foo");
-
-  verifyNotEnumerable(obj, "foo");
-
-  verifyNotConfigurable(obj, "foo");
-
   if (!(e instanceof TypeError)) {
     throw new Test262Error("Expected TypeError, got " + e);
   }
-
 }
+
+verifyProperty(obj, "foo", {
+  value: -0,
+  writable: false,
+  enumerable: false,
+  configurable: false,
+});
diff --git a/test/built-ins/Object/defineProperty/15.2.3.6-4-65.js b/test/built-ins/Object/defineProperty/15.2.3.6-4-65.js
index 02d0c6ffe3..4488dce8bc 100644
--- a/test/built-ins/Object/defineProperty/15.2.3.6-4-65.js
+++ b/test/built-ins/Object/defineProperty/15.2.3.6-4-65.js
@@ -22,16 +22,14 @@ try {
   });
   throw new Test262Error("Expected an exception.");
 } catch (e) {
-  verifyEqualTo(obj, "foo", +0);
-
-  verifyNotWritable(obj, "foo");
-
-  verifyNotEnumerable(obj, "foo");
-
-  verifyNotConfigurable(obj, "foo");
-
   if (!(e instanceof TypeError)) {
     throw new Test262Error("Expected TypeError, got " + e);
   }
-
 }
+
+verifyProperty(obj, "foo", {
+  value: +0,
+  writable: false,
+  enumerable: false,
+  configurable: false,
+});
diff --git a/test/built-ins/Object/defineProperty/15.2.3.6-4-66.js b/test/built-ins/Object/defineProperty/15.2.3.6-4-66.js
index 457c20314a..b0b14902c8 100644
--- a/test/built-ins/Object/defineProperty/15.2.3.6-4-66.js
+++ b/test/built-ins/Object/defineProperty/15.2.3.6-4-66.js
@@ -17,10 +17,10 @@ obj.foo = 101; // default value of attributes: writable: true, configurable: tru
 Object.defineProperty(obj, "foo", {
   value: 102
 });
-verifyEqualTo(obj, "foo", 102);
 
-verifyWritable(obj, "foo");
-
-verifyEnumerable(obj, "foo");
-
-verifyConfigurable(obj, "foo");
+verifyProperty(obj, "foo", {
+  value: 102,
+  writable: true,
+  enumerable: true,
+  configurable: true,
+});
diff --git a/test/built-ins/Object/defineProperty/15.2.3.6-4-67.js b/test/built-ins/Object/defineProperty/15.2.3.6-4-67.js
index 5331d82f41..3b249540bc 100644
--- a/test/built-ins/Object/defineProperty/15.2.3.6-4-67.js
+++ b/test/built-ins/Object/defineProperty/15.2.3.6-4-67.js
@@ -20,10 +20,10 @@ Object.defineProperty(obj, "foo", {
 Object.defineProperty(obj, "foo", {
   value: "abcd"
 });
-verifyEqualTo(obj, "foo", "abcd");
 
-verifyNotWritable(obj, "foo");
-
-verifyNotEnumerable(obj, "foo");
-
-verifyNotConfigurable(obj, "foo");
+verifyProperty(obj, "foo", {
+  value: "abcd",
+  writable: false,
+  enumerable: false,
+  configurable: false,
+});
diff --git a/test/built-ins/Object/defineProperty/15.2.3.6-4-68.js b/test/built-ins/Object/defineProperty/15.2.3.6-4-68.js
index 8f3f2a3acc..6c8d82a018 100644
--- a/test/built-ins/Object/defineProperty/15.2.3.6-4-68.js
+++ b/test/built-ins/Object/defineProperty/15.2.3.6-4-68.js
@@ -17,10 +17,10 @@ obj.foo = "abcd"; // default value of attributes: writable: true, configurable:
 Object.defineProperty(obj, "foo", {
   value: "fghj"
 });
-verifyEqualTo(obj, "foo", "fghj");
 
-verifyWritable(obj, "foo");
-
-verifyEnumerable(obj, "foo");
-
-verifyConfigurable(obj, "foo");
+verifyProperty(obj, "foo", {
+  value: "fghj",
+  writable: true,
+  enumerable: true,
+  configurable: true,
+});
diff --git a/test/built-ins/Object/defineProperty/15.2.3.6-4-69.js b/test/built-ins/Object/defineProperty/15.2.3.6-4-69.js
index a7b26daf98..423367cf30 100644
--- a/test/built-ins/Object/defineProperty/15.2.3.6-4-69.js
+++ b/test/built-ins/Object/defineProperty/15.2.3.6-4-69.js
@@ -19,10 +19,10 @@ Object.defineProperty(obj, "foo", {
 Object.defineProperty(obj, "foo", {
   value: true
 });
-verifyEqualTo(obj, "foo", true);
 
-verifyNotWritable(obj, "foo");
-
-verifyNotEnumerable(obj, "foo");
-
-verifyNotConfigurable(obj, "foo");
+verifyProperty(obj, "foo", {
+  value: true,
+  writable: false,
+  enumerable: false,
+  configurable: false,
+});
diff --git a/test/built-ins/Object/defineProperty/15.2.3.6-4-70.js b/test/built-ins/Object/defineProperty/15.2.3.6-4-70.js
index 716f34d96f..c9ea278925 100644
--- a/test/built-ins/Object/defineProperty/15.2.3.6-4-70.js
+++ b/test/built-ins/Object/defineProperty/15.2.3.6-4-70.js
@@ -17,10 +17,10 @@ obj.foo = true; // default value of attributes: writable: true, configurable: tr
 Object.defineProperty(obj, "foo", {
   value: false
 });
-verifyEqualTo(obj, "foo", false);
 
-verifyWritable(obj, "foo");
-
-verifyEnumerable(obj, "foo");
-
-verifyConfigurable(obj, "foo");
+verifyProperty(obj, "foo", {
+  value: false,
+  writable: true,
+  enumerable: true,
+  configurable: true,
+});
diff --git a/test/built-ins/Object/defineProperty/15.2.3.6-4-71.js b/test/built-ins/Object/defineProperty/15.2.3.6-4-71.js
index ec1d4d9b92..9e3b96be44 100644
--- a/test/built-ins/Object/defineProperty/15.2.3.6-4-71.js
+++ b/test/built-ins/Object/defineProperty/15.2.3.6-4-71.js
@@ -23,10 +23,10 @@ Object.defineProperty(obj, "foo", {
 Object.defineProperty(obj, "foo", {
   value: obj1
 });
-verifyEqualTo(obj, "foo", obj1);
 
-verifyNotWritable(obj, "foo");
-
-verifyNotEnumerable(obj, "foo");
-
-verifyNotConfigurable(obj, "foo");
+verifyProperty(obj, "foo", {
+  value: obj1,
+  writable: false,
+  enumerable: false,
+  configurable: false,
+});
diff --git a/test/built-ins/Object/defineProperty/15.2.3.6-4-72.js b/test/built-ins/Object/defineProperty/15.2.3.6-4-72.js
index c0acc806fd..0bdb4c64ab 100644
--- a/test/built-ins/Object/defineProperty/15.2.3.6-4-72.js
+++ b/test/built-ins/Object/defineProperty/15.2.3.6-4-72.js
@@ -24,10 +24,10 @@ var obj2 = {
 Object.defineProperty(obj, "foo", {
   value: obj2
 });
-verifyEqualTo(obj, "foo", obj2);
 
-verifyWritable(obj, "foo");
-
-verifyEnumerable(obj, "foo");
-
-verifyConfigurable(obj, "foo");
+verifyProperty(obj, "foo", {
+  value: obj2,
+  writable: true,
+  enumerable: true,
+  configurable: true,
+});
diff --git a/test/built-ins/Object/defineProperty/15.2.3.6-4-73.js b/test/built-ins/Object/defineProperty/15.2.3.6-4-73.js
index eb436b8ff4..5ce4b4b6be 100644
--- a/test/built-ins/Object/defineProperty/15.2.3.6-4-73.js
+++ b/test/built-ins/Object/defineProperty/15.2.3.6-4-73.js
@@ -19,10 +19,10 @@ Object.defineProperty(obj, "foo", {
 Object.defineProperty(obj, "foo", {
   writable: false
 });
-verifyEqualTo(obj, "foo", undefined);
 
-verifyNotWritable(obj, "foo");
-
-verifyNotEnumerable(obj, "foo");
-
-verifyNotConfigurable(obj, "foo");
+verifyProperty(obj, "foo", {
+  value: undefined,
+  writable: false,
+  enumerable: false,
+  configurable: false,
+});
diff --git a/test/built-ins/Object/defineProperty/15.2.3.6-4-74.js b/test/built-ins/Object/defineProperty/15.2.3.6-4-74.js
index 6a413f5ab6..ad273ae636 100644
--- a/test/built-ins/Object/defineProperty/15.2.3.6-4-74.js
+++ b/test/built-ins/Object/defineProperty/15.2.3.6-4-74.js
@@ -20,10 +20,10 @@ Object.defineProperty(obj, "foo", {
 Object.defineProperty(obj, "foo", {
   writable: true
 });
-verifyEqualTo(obj, "foo", undefined);
 
-verifyWritable(obj, "foo");
-
-verifyNotEnumerable(obj, "foo");
-
-verifyConfigurable(obj, "foo");
+verifyProperty(obj, "foo", {
+  value: undefined,
+  writable: true,
+  enumerable: false,
+  configurable: true,
+});
diff --git a/test/built-ins/Object/defineProperty/15.2.3.6-4-75.js b/test/built-ins/Object/defineProperty/15.2.3.6-4-75.js
index 833298e2a9..268f684cb8 100644
--- a/test/built-ins/Object/defineProperty/15.2.3.6-4-75.js
+++ b/test/built-ins/Object/defineProperty/15.2.3.6-4-75.js
@@ -32,6 +32,7 @@ verifyEqualTo(obj, "foo", getFunc());
 
 verifyWritable(obj, "foo", "helpVerifySet");
 
-verifyNotEnumerable(obj, "foo");
-
-verifyNotConfigurable(obj, "foo");
+verifyProperty(obj, "foo", {
+  enumerable: false,
+  configurable: false,
+});
diff --git a/test/built-ins/Object/defineProperty/15.2.3.6-4-76.js b/test/built-ins/Object/defineProperty/15.2.3.6-4-76.js
index 7473dbac8e..76f56c3d53 100644
--- a/test/built-ins/Object/defineProperty/15.2.3.6-4-76.js
+++ b/test/built-ins/Object/defineProperty/15.2.3.6-4-76.js
@@ -37,6 +37,7 @@ verifyEqualTo(obj, "foo", getFunc2());
 
 verifyWritable(obj, "foo", "helpVerifySet");
 
-verifyNotEnumerable(obj, "foo");
-
-verifyConfigurable(obj, "foo");
+verifyProperty(obj, "foo", {
+  enumerable: false,
+  configurable: true,
+});
diff --git a/test/built-ins/Object/defineProperty/15.2.3.6-4-77.js b/test/built-ins/Object/defineProperty/15.2.3.6-4-77.js
index 4dbddfefab..810b8c960d 100644
--- a/test/built-ins/Object/defineProperty/15.2.3.6-4-77.js
+++ b/test/built-ins/Object/defineProperty/15.2.3.6-4-77.js
@@ -25,6 +25,7 @@ Object.defineProperty(obj, "foo", {
 });
 verifyWritable(obj, "foo", "setVerifyHelpProp");
 
-verifyNotEnumerable(obj, "foo");
-
-verifyNotConfigurable(obj, "foo");
+verifyProperty(obj, "foo", {
+  enumerable: false,
+  configurable: false,
+});
diff --git a/test/built-ins/Object/defineProperty/15.2.3.6-4-78.js b/test/built-ins/Object/defineProperty/15.2.3.6-4-78.js
index e49b9787db..b2ff3f88bc 100644
--- a/test/built-ins/Object/defineProperty/15.2.3.6-4-78.js
+++ b/test/built-ins/Object/defineProperty/15.2.3.6-4-78.js
@@ -28,6 +28,7 @@ Object.defineProperty(obj, "foo", {
 });
 verifyWritable(obj, "foo", "setVerifyHelpProp");
 
-verifyNotEnumerable(obj, "foo");
-
-verifyConfigurable(obj, "foo");
+verifyProperty(obj, "foo", {
+  enumerable: false,
+  configurable: true,
+});
diff --git a/test/built-ins/Object/defineProperty/15.2.3.6-4-79.js b/test/built-ins/Object/defineProperty/15.2.3.6-4-79.js
index 62476d0bc9..e8c1b23e1e 100644
--- a/test/built-ins/Object/defineProperty/15.2.3.6-4-79.js
+++ b/test/built-ins/Object/defineProperty/15.2.3.6-4-79.js
@@ -19,10 +19,10 @@ Object.defineProperty(obj, "foo", {
 Object.defineProperty(obj, "foo", {
   enumerable: false
 });
-verifyEqualTo(obj, "foo", undefined);
 
-verifyNotWritable(obj, "foo");
-
-verifyNotEnumerable(obj, "foo");
-
-verifyNotConfigurable(obj, "foo");
+verifyProperty(obj, "foo", {
+  value: undefined,
+  writable: false,
+  enumerable: false,
+  configurable: false,
+});
diff --git a/test/built-ins/Object/defineProperty/15.2.3.6-4-80.js b/test/built-ins/Object/defineProperty/15.2.3.6-4-80.js
index c71b320e5f..60b6928971 100644
--- a/test/built-ins/Object/defineProperty/15.2.3.6-4-80.js
+++ b/test/built-ins/Object/defineProperty/15.2.3.6-4-80.js
@@ -20,10 +20,10 @@ Object.defineProperty(obj, "foo", {
 Object.defineProperty(obj, "foo", {
   enumerable: true
 });
-verifyEqualTo(obj, "foo", undefined);
 
-verifyNotWritable(obj, "foo");
-
-verifyEnumerable(obj, "foo");
-
-verifyConfigurable(obj, "foo");
+verifyProperty(obj, "foo", {
+  value: undefined,
+  writable: false,
+  enumerable: true,
+  configurable: true,
+});
diff --git a/test/built-ins/Object/defineProperty/15.2.3.6-4-81.js b/test/built-ins/Object/defineProperty/15.2.3.6-4-81.js
index 26939a862f..a2db14ffbb 100644
--- a/test/built-ins/Object/defineProperty/15.2.3.6-4-81.js
+++ b/test/built-ins/Object/defineProperty/15.2.3.6-4-81.js
@@ -19,10 +19,10 @@ Object.defineProperty(obj, "foo", {
 Object.defineProperty(obj, "foo", {
   configurable: false
 });
-verifyEqualTo(obj, "foo", undefined);
 
-verifyNotWritable(obj, "foo");
-
-verifyNotEnumerable(obj, "foo");
-
-verifyNotConfigurable(obj, "foo");
+verifyProperty(obj, "foo", {
+  value: undefined,
+  writable: false,
+  enumerable: false,
+  configurable: false,
+});
diff --git a/test/built-ins/Object/defineProperty/15.2.3.6-4-82-1.js b/test/built-ins/Object/defineProperty/15.2.3.6-4-82-1.js
index f7e965c621..c744e4f9db 100644
--- a/test/built-ins/Object/defineProperty/15.2.3.6-4-82-1.js
+++ b/test/built-ins/Object/defineProperty/15.2.3.6-4-82-1.js
@@ -27,10 +27,9 @@ Object.defineProperty(obj, "foo", {
   enumerable: false
 });
 
-verifyEqualTo(obj, "foo", 1001);
-
-verifyWritable(obj, "foo");
-
-verifyNotEnumerable(obj, "foo");
-
-verifyConfigurable(obj, "foo");
+verifyProperty(obj, "foo", {
+  value: 1001,
+  writable: true,
+  enumerable: false,
+  configurable: true,
+});
diff --git a/test/built-ins/Object/defineProperty/15.2.3.6-4-82-10.js b/test/built-ins/Object/defineProperty/15.2.3.6-4-82-10.js
index ee190b0242..dfd336f892 100644
--- a/test/built-ins/Object/defineProperty/15.2.3.6-4-82-10.js
+++ b/test/built-ins/Object/defineProperty/15.2.3.6-4-82-10.js
@@ -38,6 +38,7 @@ verifyEqualTo(obj, "foo", get_func());
 
 verifyWritable(obj, "foo", "verifySetFunction");
 
-verifyEnumerable(obj, "foo");
-
-verifyNotConfigurable(obj, "foo");
+verifyProperty(obj, "foo", {
+  enumerable: true,
+  configurable: false,
+});
diff --git a/test/built-ins/Object/defineProperty/15.2.3.6-4-82-11.js b/test/built-ins/Object/defineProperty/15.2.3.6-4-82-11.js
index 293711b618..1c9de3d2e1 100644
--- a/test/built-ins/Object/defineProperty/15.2.3.6-4-82-11.js
+++ b/test/built-ins/Object/defineProperty/15.2.3.6-4-82-11.js
@@ -38,6 +38,7 @@ verifyEqualTo(obj, "foo", get_func());
 
 verifyWritable(obj, "foo", "verifySetFunction");
 
-verifyNotEnumerable(obj, "foo");
-
-verifyNotConfigurable(obj, "foo");
+verifyProperty(obj, "foo", {
+  enumerable: false,
+  configurable: false,
+});
diff --git a/test/built-ins/Object/defineProperty/15.2.3.6-4-82-12.js b/test/built-ins/Object/defineProperty/15.2.3.6-4-82-12.js
index 7c20a6c1ae..abfcf193fd 100644
--- a/test/built-ins/Object/defineProperty/15.2.3.6-4-82-12.js
+++ b/test/built-ins/Object/defineProperty/15.2.3.6-4-82-12.js
@@ -37,6 +37,7 @@ verifyEqualTo(obj, "foo", get_func());
 
 verifyWritable(obj, "foo", "verifySetFunction");
 
-verifyEnumerable(obj, "foo");
-
-verifyConfigurable(obj, "foo");
+verifyProperty(obj, "foo", {
+  enumerable: true,
+  configurable: true,
+});
diff --git a/test/built-ins/Object/defineProperty/15.2.3.6-4-82-13.js b/test/built-ins/Object/defineProperty/15.2.3.6-4-82-13.js
index d7905a3f12..230a80c257 100644
--- a/test/built-ins/Object/defineProperty/15.2.3.6-4-82-13.js
+++ b/test/built-ins/Object/defineProperty/15.2.3.6-4-82-13.js
@@ -27,10 +27,9 @@ Object.defineProperty(obj, "0", {
   enumerable: false
 });
 
-verifyEqualTo(obj, "0", 1001);
-
-verifyWritable(obj, "0");
-
-verifyNotEnumerable(obj, "0");
-
-verifyConfigurable(obj, "0");
+verifyProperty(obj, "0", {
+  value: 1001,
+  writable: true,
+  enumerable: false,
+  configurable: true,
+});
diff --git a/test/built-ins/Object/defineProperty/15.2.3.6-4-82-14.js b/test/built-ins/Object/defineProperty/15.2.3.6-4-82-14.js
index d3c9a5a46c..752852bcb6 100644
--- a/test/built-ins/Object/defineProperty/15.2.3.6-4-82-14.js
+++ b/test/built-ins/Object/defineProperty/15.2.3.6-4-82-14.js
@@ -28,10 +28,9 @@ Object.defineProperty(obj, "0", {
   configurable: true
 });
 
-verifyEqualTo(obj, "0", 1001);
-
-verifyWritable(obj, "0");
-
-verifyNotEnumerable(obj, "0");
-
-verifyConfigurable(obj, "0");
+verifyProperty(obj, "0", {
+  value: 1001,
+  writable: true,
+  enumerable: false,
+  configurable: true,
+});
diff --git a/test/built-ins/Object/defineProperty/15.2.3.6-4-82-15.js b/test/built-ins/Object/defineProperty/15.2.3.6-4-82-15.js
index d03591c065..4d7b20a203 100644
--- a/test/built-ins/Object/defineProperty/15.2.3.6-4-82-15.js
+++ b/test/built-ins/Object/defineProperty/15.2.3.6-4-82-15.js
@@ -26,10 +26,9 @@ Object.defineProperty(obj, "0", {
   configurable: false
 });
 
-verifyEqualTo(obj, "0", 1001);
-
-verifyWritable(obj, "0");
-
-verifyEnumerable(obj, "0");
-
-verifyNotConfigurable(obj, "0");
+verifyProperty(obj, "0", {
+  value: 1001,
+  writable: true,
+  enumerable: true,
+  configurable: false,
+});
diff --git a/test/built-ins/Object/defineProperty/15.2.3.6-4-82-16.js b/test/built-ins/Object/defineProperty/15.2.3.6-4-82-16.js
index 5f2f3bf393..8b030757aa 100644
--- a/test/built-ins/Object/defineProperty/15.2.3.6-4-82-16.js
+++ b/test/built-ins/Object/defineProperty/15.2.3.6-4-82-16.js
@@ -28,10 +28,9 @@ Object.defineProperty(obj, "0", {
   configurable: false
 });
 
-verifyEqualTo(obj, "0", 1001);
-
-verifyWritable(obj, "0");
-
-verifyEnumerable(obj, "0");
-
-verifyNotConfigurable(obj, "0");
+verifyProperty(obj, "0", {
+  value: 1001,
+  writable: true,
+  enumerable: true,
+  configurable: false,
+});
diff --git a/test/built-ins/Object/defineProperty/15.2.3.6-4-82-17.js b/test/built-ins/Object/defineProperty/15.2.3.6-4-82-17.js
index c999cf1bbd..ca6020f2d5 100644
--- a/test/built-ins/Object/defineProperty/15.2.3.6-4-82-17.js
+++ b/test/built-ins/Object/defineProperty/15.2.3.6-4-82-17.js
@@ -28,10 +28,9 @@ Object.defineProperty(obj, "0", {
   configurable: false
 });
 
-verifyEqualTo(obj, "0", 1001);
-
-verifyWritable(obj, "0");
-
-verifyNotEnumerable(obj, "0");
-
-verifyNotConfigurable(obj, "0");
+verifyProperty(obj, "0", {
+  value: 1001,
+  writable: true,
+  enumerable: false,
+  configurable: false,
+});
diff --git a/test/built-ins/Object/defineProperty/15.2.3.6-4-82-18.js b/test/built-ins/Object/defineProperty/15.2.3.6-4-82-18.js
index 7aead07eef..b4de9144ef 100644
--- a/test/built-ins/Object/defineProperty/15.2.3.6-4-82-18.js
+++ b/test/built-ins/Object/defineProperty/15.2.3.6-4-82-18.js
@@ -27,10 +27,9 @@ Object.defineProperty(obj, "0", {
   enumerable: true
 });
 
-verifyEqualTo(obj, "0", 1001);
-
-verifyWritable(obj, "0");
-
-verifyEnumerable(obj, "0");
-
-verifyConfigurable(obj, "0");
+verifyProperty(obj, "0", {
+  value: 1001,
+  writable: true,
+  enumerable: true,
+  configurable: true,
+});
diff --git a/test/built-ins/Object/defineProperty/15.2.3.6-4-82-19.js b/test/built-ins/Object/defineProperty/15.2.3.6-4-82-19.js
index 54fcb81c56..5f4e4a6a9c 100644
--- a/test/built-ins/Object/defineProperty/15.2.3.6-4-82-19.js
+++ b/test/built-ins/Object/defineProperty/15.2.3.6-4-82-19.js
@@ -37,6 +37,7 @@ verifyEqualTo(obj, "0", get_func());
 
 verifyWritable(obj, "0", "verifySetFunction");
 
-verifyNotEnumerable(obj, "0");
-
-verifyConfigurable(obj, "0");
+verifyProperty(obj, "0", {
+  enumerable: false,
+  configurable: true,
+});
diff --git a/test/built-ins/Object/defineProperty/15.2.3.6-4-82-2.js b/test/built-ins/Object/defineProperty/15.2.3.6-4-82-2.js
index be51111350..14bff7a45d 100644
--- a/test/built-ins/Object/defineProperty/15.2.3.6-4-82-2.js
+++ b/test/built-ins/Object/defineProperty/15.2.3.6-4-82-2.js
@@ -28,10 +28,9 @@ Object.defineProperty(obj, "foo", {
   configurable: true
 });
 
-verifyEqualTo(obj, "foo", 1001);
-
-verifyWritable(obj, "foo");
-
-verifyNotEnumerable(obj, "foo");
-
-verifyConfigurable(obj, "foo");
+verifyProperty(obj, "foo", {
+  value: 1001,
+  writable: true,
+  enumerable: false,
+  configurable: true,
+});
diff --git a/test/built-ins/Object/defineProperty/15.2.3.6-4-82-20.js b/test/built-ins/Object/defineProperty/15.2.3.6-4-82-20.js
index 7ab7217985..a65a115a55 100644
--- a/test/built-ins/Object/defineProperty/15.2.3.6-4-82-20.js
+++ b/test/built-ins/Object/defineProperty/15.2.3.6-4-82-20.js
@@ -38,6 +38,7 @@ verifyEqualTo(obj, "0", get_func());
 
 verifyWritable(obj, "0", "verifySetFunction");
 
-verifyNotEnumerable(obj, "0");
-
-verifyConfigurable(obj, "0");
+verifyProperty(obj, "0", {
+  enumerable: false,
+  configurable: true,
+});
diff --git a/test/built-ins/Object/defineProperty/15.2.3.6-4-82-21.js b/test/built-ins/Object/defineProperty/15.2.3.6-4-82-21.js
index 629a5e9dfe..b7da9b9853 100644
--- a/test/built-ins/Object/defineProperty/15.2.3.6-4-82-21.js
+++ b/test/built-ins/Object/defineProperty/15.2.3.6-4-82-21.js
@@ -37,6 +37,7 @@ verifyEqualTo(obj, "0", get_func());
 
 verifyWritable(obj, "0", "verifySetFunction");
 
-verifyEnumerable(obj, "0");
-
-verifyNotConfigurable(obj, "0");
+verifyProperty(obj, "0", {
+  enumerable: true,
+  configurable: false,
+});
diff --git a/test/built-ins/Object/defineProperty/15.2.3.6-4-82-22.js b/test/built-ins/Object/defineProperty/15.2.3.6-4-82-22.js
index cd26dfba0d..30add35846 100644
--- a/test/built-ins/Object/defineProperty/15.2.3.6-4-82-22.js
+++ b/test/built-ins/Object/defineProperty/15.2.3.6-4-82-22.js
@@ -38,6 +38,7 @@ verifyEqualTo(obj, "0", get_func());
 
 verifyWritable(obj, "0", "verifySetFunction");
 
-verifyEnumerable(obj, "0");
-
-verifyNotConfigurable(obj, "0");
+verifyProperty(obj, "0", {
+  enumerable: true,
+  configurable: false,
+});
diff --git a/test/built-ins/Object/defineProperty/15.2.3.6-4-82-23.js b/test/built-ins/Object/defineProperty/15.2.3.6-4-82-23.js
index 137b1ba4ce..8eacd6e77c 100644
--- a/test/built-ins/Object/defineProperty/15.2.3.6-4-82-23.js
+++ b/test/built-ins/Object/defineProperty/15.2.3.6-4-82-23.js
@@ -38,6 +38,7 @@ verifyEqualTo(obj, "0", get_func());
 
 verifyWritable(obj, "0", "verifySetFunction");
 
-verifyNotEnumerable(obj, "0");
-
-verifyNotConfigurable(obj, "0");
+verifyProperty(obj, "0", {
+  enumerable: false,
+  configurable: false,
+});
diff --git a/test/built-ins/Object/defineProperty/15.2.3.6-4-82-24.js b/test/built-ins/Object/defineProperty/15.2.3.6-4-82-24.js
index 8bb8149144..13b2877d4e 100644
--- a/test/built-ins/Object/defineProperty/15.2.3.6-4-82-24.js
+++ b/test/built-ins/Object/defineProperty/15.2.3.6-4-82-24.js
@@ -37,6 +37,7 @@ verifyEqualTo(obj, "0", get_func());
 
 verifyWritable(obj, "0", "verifySetFunction");
 
-verifyEnumerable(obj, "0");
-
-verifyConfigurable(obj, "0");
+verifyProperty(obj, "0", {
+  enumerable: true,
+  configurable: true,
+});
diff --git a/test/built-ins/Object/defineProperty/15.2.3.6-4-82-3.js b/test/built-ins/Object/defineProperty/15.2.3.6-4-82-3.js
index af0980148a..3a2b495790 100644
--- a/test/built-ins/Object/defineProperty/15.2.3.6-4-82-3.js
+++ b/test/built-ins/Object/defineProperty/15.2.3.6-4-82-3.js
@@ -26,10 +26,9 @@ Object.defineProperty(obj, "foo", {
   configurable: false
 });
 
-verifyEqualTo(obj, "foo", 1001);
-
-verifyWritable(obj, "foo");
-
-verifyEnumerable(obj, "foo");
-
-verifyNotConfigurable(obj, "foo");
+verifyProperty(obj, "foo", {
+  value: 1001,
+  writable: true,
+  enumerable: true,
+  configurable: false,
+});
diff --git a/test/built-ins/Object/defineProperty/15.2.3.6-4-82-4.js b/test/built-ins/Object/defineProperty/15.2.3.6-4-82-4.js
index 0d11ba790c..ab1e03c90f 100644
--- a/test/built-ins/Object/defineProperty/15.2.3.6-4-82-4.js
+++ b/test/built-ins/Object/defineProperty/15.2.3.6-4-82-4.js
@@ -28,10 +28,9 @@ Object.defineProperty(obj, "foo", {
   configurable: false
 });
 
-verifyEqualTo(obj, "foo", 1001);
-
-verifyWritable(obj, "foo");
-
-verifyEnumerable(obj, "foo");
-
-verifyNotConfigurable(obj, "foo");
+verifyProperty(obj, "foo", {
+  value: 1001,
+  writable: true,
+  enumerable: true,
+  configurable: false,
+});
diff --git a/test/built-ins/Object/defineProperty/15.2.3.6-4-82-5.js b/test/built-ins/Object/defineProperty/15.2.3.6-4-82-5.js
index cc9bb95f22..b9d6b8d486 100644
--- a/test/built-ins/Object/defineProperty/15.2.3.6-4-82-5.js
+++ b/test/built-ins/Object/defineProperty/15.2.3.6-4-82-5.js
@@ -28,10 +28,9 @@ Object.defineProperty(obj, "foo", {
   configurable: false
 });
 
-verifyEqualTo(obj, "foo", 1001);
-
-verifyWritable(obj, "foo");
-
-verifyNotEnumerable(obj, "foo");
-
-verifyNotConfigurable(obj, "foo");
+verifyProperty(obj, "foo", {
+  value: 1001,
+  writable: true,
+  enumerable: false,
+  configurable: false,
+});
diff --git a/test/built-ins/Object/defineProperty/15.2.3.6-4-82-6.js b/test/built-ins/Object/defineProperty/15.2.3.6-4-82-6.js
index 15ee855b7c..0f36fef30d 100644
--- a/test/built-ins/Object/defineProperty/15.2.3.6-4-82-6.js
+++ b/test/built-ins/Object/defineProperty/15.2.3.6-4-82-6.js
@@ -27,10 +27,9 @@ Object.defineProperty(obj, "foo", {
   enumerable: true
 });
 
-verifyEqualTo(obj, "foo", 1001);
-
-verifyWritable(obj, "foo");
-
-verifyEnumerable(obj, "foo");
-
-verifyConfigurable(obj, "foo");
+verifyProperty(obj, "foo", {
+  value: 1001,
+  writable: true,
+  enumerable: true,
+  configurable: true,
+});
diff --git a/test/built-ins/Object/defineProperty/15.2.3.6-4-82-7.js b/test/built-ins/Object/defineProperty/15.2.3.6-4-82-7.js
index 9d6c0c23bf..f02c637868 100644
--- a/test/built-ins/Object/defineProperty/15.2.3.6-4-82-7.js
+++ b/test/built-ins/Object/defineProperty/15.2.3.6-4-82-7.js
@@ -37,6 +37,7 @@ verifyEqualTo(obj, "foo", get_func());
 
 verifyWritable(obj, "foo", "verifySetFunction");
 
-verifyNotEnumerable(obj, "foo");
-
-verifyConfigurable(obj, "foo");
+verifyProperty(obj, "foo", {
+  enumerable: false,
+  configurable: true,
+});
diff --git a/test/built-ins/Object/defineProperty/15.2.3.6-4-82-8.js b/test/built-ins/Object/defineProperty/15.2.3.6-4-82-8.js
index 230531fd86..de5b2af1f6 100644
--- a/test/built-ins/Object/defineProperty/15.2.3.6-4-82-8.js
+++ b/test/built-ins/Object/defineProperty/15.2.3.6-4-82-8.js
@@ -38,6 +38,7 @@ verifyEqualTo(obj, "foo", get_func());
 
 verifyWritable(obj, "foo", "verifySetFunction");
 
-verifyNotEnumerable(obj, "foo");
-
-verifyConfigurable(obj, "foo");
+verifyProperty(obj, "foo", {
+  enumerable: false,
+  configurable: true,
+});
diff --git a/test/built-ins/Object/defineProperty/15.2.3.6-4-82-9.js b/test/built-ins/Object/defineProperty/15.2.3.6-4-82-9.js
index 2d660c23c4..67f88fff3d 100644
--- a/test/built-ins/Object/defineProperty/15.2.3.6-4-82-9.js
+++ b/test/built-ins/Object/defineProperty/15.2.3.6-4-82-9.js
@@ -37,6 +37,7 @@ verifyEqualTo(obj, "foo", get_func());
 
 verifyWritable(obj, "foo", "verifySetFunction");
 
-verifyEnumerable(obj, "foo");
-
-verifyNotConfigurable(obj, "foo");
+verifyProperty(obj, "foo", {
+  enumerable: true,
+  configurable: false,
+});
diff --git a/test/built-ins/Object/defineProperty/15.2.3.6-4-82.js b/test/built-ins/Object/defineProperty/15.2.3.6-4-82.js
index 71081cb23f..64e0e5fe5f 100644
--- a/test/built-ins/Object/defineProperty/15.2.3.6-4-82.js
+++ b/test/built-ins/Object/defineProperty/15.2.3.6-4-82.js
@@ -19,10 +19,10 @@ Object.defineProperty(obj, "foo", {
 Object.defineProperty(obj, "foo", {
   configurable: false
 });
-verifyEqualTo(obj, "foo", undefined);
 
-verifyNotWritable(obj, "foo");
-
-verifyNotEnumerable(obj, "foo");
-
-verifyNotConfigurable(obj, "foo");
+verifyProperty(obj, "foo", {
+  value: undefined,
+  writable: false,
+  enumerable: false,
+  configurable: false,
+});
diff --git a/test/built-ins/Object/defineProperty/15.2.3.6-4-83.js b/test/built-ins/Object/defineProperty/15.2.3.6-4-83.js
index 6bcec607fb..f1c90b20ca 100644
--- a/test/built-ins/Object/defineProperty/15.2.3.6-4-83.js
+++ b/test/built-ins/Object/defineProperty/15.2.3.6-4-83.js
@@ -24,10 +24,10 @@ Object.defineProperty(obj, "foo", {
   writable: false,
   configurable: false
 });
-verifyEqualTo(obj, "foo", undefined);
 
-verifyNotWritable(obj, "foo");
-
-verifyNotEnumerable(obj, "foo");
-
-verifyNotConfigurable(obj, "foo");
+verifyProperty(obj, "foo", {
+  value: undefined,
+  writable: false,
+  enumerable: false,
+  configurable: false,
+});
diff --git a/test/built-ins/Object/defineProperty/15.2.3.6-4-84.js b/test/built-ins/Object/defineProperty/15.2.3.6-4-84.js
index 701d3ef464..ed2db7a4ca 100644
--- a/test/built-ins/Object/defineProperty/15.2.3.6-4-84.js
+++ b/test/built-ins/Object/defineProperty/15.2.3.6-4-84.js
@@ -24,10 +24,10 @@ Object.defineProperty(obj, "foo", {
   writable: false,
   configurable: false
 });
-verifyEqualTo(obj, "foo", null);
 
-verifyNotWritable(obj, "foo");
-
-verifyNotEnumerable(obj, "foo");
-
-verifyNotConfigurable(obj, "foo");
+verifyProperty(obj, "foo", {
+  value: null,
+  writable: false,
+  enumerable: false,
+  configurable: false,
+});
diff --git a/test/built-ins/Object/defineProperty/15.2.3.6-4-85.js b/test/built-ins/Object/defineProperty/15.2.3.6-4-85.js
index 7499fb8b5a..71e1ed48bb 100644
--- a/test/built-ins/Object/defineProperty/15.2.3.6-4-85.js
+++ b/test/built-ins/Object/defineProperty/15.2.3.6-4-85.js
@@ -24,10 +24,9 @@ Object.defineProperty(obj, "foo", {
   configurable: false
 });
 
-assert.sameValue(obj.foo, NaN);
-
-verifyNotWritable(obj, "foo");
-
-verifyNotEnumerable(obj, "foo");
-
-verifyNotConfigurable(obj, "foo");
+verifyProperty(obj, "foo", {
+  value: NaN,
+  writable: false,
+  enumerable: false,
+  configurable: false,
+});
diff --git a/test/built-ins/Object/defineProperty/15.2.3.6-4-86.js b/test/built-ins/Object/defineProperty/15.2.3.6-4-86.js
index ea1b1b3986..619d57e22f 100644
--- a/test/built-ins/Object/defineProperty/15.2.3.6-4-86.js
+++ b/test/built-ins/Object/defineProperty/15.2.3.6-4-86.js
@@ -25,16 +25,14 @@ try {
   });
   throw new Test262Error("Expected an exception.");
 } catch (e) {
-  verifyEqualTo(obj, "foo", -0);
-
-  verifyNotWritable(obj, "foo");
-
-  verifyNotEnumerable(obj, "foo");
-
-  verifyNotConfigurable(obj, "foo");
-
   if (!(e instanceof TypeError)) {
     throw new Test262Error("Expected TypeError, got " + e);
   }
-
 }
+
+verifyProperty(obj, "foo", {
+  value: -0,
+  writable: false,
+  enumerable: false,
+  configurable: false,
+});
diff --git a/test/built-ins/Object/defineProperty/15.2.3.6-4-87.js b/test/built-ins/Object/defineProperty/15.2.3.6-4-87.js
index 4a2890f390..0c1467a7b7 100644
--- a/test/built-ins/Object/defineProperty/15.2.3.6-4-87.js
+++ b/test/built-ins/Object/defineProperty/15.2.3.6-4-87.js
@@ -25,16 +25,14 @@ try {
   });
   throw new Test262Error("Expected an exception.");
 } catch (e) {
-  verifyEqualTo(obj, "foo", +0);
-
-  verifyNotWritable(obj, "foo");
-
-  verifyNotEnumerable(obj, "foo");
-
-  verifyNotConfigurable(obj, "foo");
-
   if (!(e instanceof TypeError)) {
     throw new Test262Error("Expected TypeError, got " + e);
   }
-
 }
+
+verifyProperty(obj, "foo", {
+  value: +0,
+  writable: false,
+  enumerable: false,
+  configurable: false,
+});
diff --git a/test/built-ins/Object/defineProperty/15.2.3.6-4-88.js b/test/built-ins/Object/defineProperty/15.2.3.6-4-88.js
index fb949aa349..588ab8fbcb 100644
--- a/test/built-ins/Object/defineProperty/15.2.3.6-4-88.js
+++ b/test/built-ins/Object/defineProperty/15.2.3.6-4-88.js
@@ -23,10 +23,10 @@ Object.defineProperty(obj, "foo", {
 Object.defineProperty(obj, "foo", {
   value: 100
 });
-verifyEqualTo(obj, "foo", 100);
 
-verifyNotWritable(obj, "foo");
-
-verifyNotEnumerable(obj, "foo");
-
-verifyNotConfigurable(obj, "foo");
+verifyProperty(obj, "foo", {
+  value: 100,
+  writable: false,
+  enumerable: false,
+  configurable: false,
+});
diff --git a/test/built-ins/Object/defineProperty/15.2.3.6-4-89.js b/test/built-ins/Object/defineProperty/15.2.3.6-4-89.js
index 19ecac3f59..64ac53baa2 100644
--- a/test/built-ins/Object/defineProperty/15.2.3.6-4-89.js
+++ b/test/built-ins/Object/defineProperty/15.2.3.6-4-89.js
@@ -25,16 +25,14 @@ try {
   });
   throw new Test262Error("Expected an exception.");
 } catch (e) {
-  verifyEqualTo(obj, "foo", 10);
-
-  verifyNotWritable(obj, "foo");
-
-  verifyNotEnumerable(obj, "foo");
-
-  verifyNotConfigurable(obj, "foo");
-
   if (!(e instanceof TypeError)) {
     throw new Test262Error("Expected TypeError, got " + e);
   }
-
 }
+
+verifyProperty(obj, "foo", {
+  value: 10,
+  writable: false,
+  enumerable: false,
+  configurable: false,
+});
diff --git a/test/built-ins/Object/defineProperty/15.2.3.6-4-90.js b/test/built-ins/Object/defineProperty/15.2.3.6-4-90.js
index 9466f4b070..d5922842f8 100644
--- a/test/built-ins/Object/defineProperty/15.2.3.6-4-90.js
+++ b/test/built-ins/Object/defineProperty/15.2.3.6-4-90.js
@@ -23,10 +23,10 @@ Object.defineProperty(obj, "foo", {
 Object.defineProperty(obj, "foo", {
   value: "abcd"
 });
-verifyEqualTo(obj, "foo", "abcd");
 
-verifyNotWritable(obj, "foo");
-
-verifyNotEnumerable(obj, "foo");
-
-verifyNotConfigurable(obj, "foo");
+verifyProperty(obj, "foo", {
+  value: "abcd",
+  writable: false,
+  enumerable: false,
+  configurable: false,
+});
diff --git a/test/built-ins/Object/defineProperty/15.2.3.6-4-91.js b/test/built-ins/Object/defineProperty/15.2.3.6-4-91.js
index 20d3d198f9..55e257d06a 100644
--- a/test/built-ins/Object/defineProperty/15.2.3.6-4-91.js
+++ b/test/built-ins/Object/defineProperty/15.2.3.6-4-91.js
@@ -25,16 +25,14 @@ try {
   });
   throw new Test262Error("Expected an exception.");
 } catch (e) {
-  verifyEqualTo(obj, "foo", "abcd");
-
-  verifyNotWritable(obj, "foo");
-
-  verifyNotEnumerable(obj, "foo");
-
-  verifyNotConfigurable(obj, "foo");
-
   if (!(e instanceof TypeError)) {
     throw new Test262Error("Expected TypeError, got " + e);
   }
-
 }
+
+verifyProperty(obj, "foo", {
+  value: "abcd",
+  writable: false,
+  enumerable: false,
+  configurable: false,
+});
diff --git a/test/built-ins/Object/defineProperty/15.2.3.6-4-92.js b/test/built-ins/Object/defineProperty/15.2.3.6-4-92.js
index 925c95364c..481dd5654c 100644
--- a/test/built-ins/Object/defineProperty/15.2.3.6-4-92.js
+++ b/test/built-ins/Object/defineProperty/15.2.3.6-4-92.js
@@ -23,10 +23,10 @@ Object.defineProperty(obj, "foo", {
 Object.defineProperty(obj, "foo", {
   value: false
 });
-verifyEqualTo(obj, "foo", false);
 
-verifyNotWritable(obj, "foo");
-
-verifyNotEnumerable(obj, "foo");
-
-verifyNotConfigurable(obj, "foo");
+verifyProperty(obj, "foo", {
+  value: false,
+  writable: false,
+  enumerable: false,
+  configurable: false,
+});
diff --git a/test/built-ins/Object/defineProperty/15.2.3.6-4-93.js b/test/built-ins/Object/defineProperty/15.2.3.6-4-93.js
index 0c693d7dd1..262e570edd 100644
--- a/test/built-ins/Object/defineProperty/15.2.3.6-4-93.js
+++ b/test/built-ins/Object/defineProperty/15.2.3.6-4-93.js
@@ -25,16 +25,14 @@ try {
   });
   throw new Test262Error("Expected an exception.");
 } catch (e) {
-  verifyEqualTo(obj, "foo", false);
-
-  verifyNotWritable(obj, "foo");
-
-  verifyNotEnumerable(obj, "foo");
-
-  verifyNotConfigurable(obj, "foo");
-
   if (!(e instanceof TypeError)) {
     throw new Test262Error("Expected TypeError, got " + e);
   }
-
 }
+
+verifyProperty(obj, "foo", {
+  value: false,
+  writable: false,
+  enumerable: false,
+  configurable: false,
+});
diff --git a/test/built-ins/Object/defineProperty/15.2.3.6-4-94.js b/test/built-ins/Object/defineProperty/15.2.3.6-4-94.js
index ab9e265987..0973134124 100644
--- a/test/built-ins/Object/defineProperty/15.2.3.6-4-94.js
+++ b/test/built-ins/Object/defineProperty/15.2.3.6-4-94.js
@@ -27,10 +27,10 @@ Object.defineProperty(obj, "foo", {
 Object.defineProperty(obj, "foo", {
   value: obj1
 });
-verifyEqualTo(obj, "foo", obj1);
 
-verifyNotWritable(obj, "foo");
-
-verifyNotEnumerable(obj, "foo");
-
-verifyNotConfigurable(obj, "foo");
+verifyProperty(obj, "foo", {
+  value: obj1,
+  writable: false,
+  enumerable: false,
+  configurable: false,
+});
diff --git a/test/built-ins/Object/defineProperty/15.2.3.6-4-95.js b/test/built-ins/Object/defineProperty/15.2.3.6-4-95.js
index bc7e45b0d5..b70d518ee5 100644
--- a/test/built-ins/Object/defineProperty/15.2.3.6-4-95.js
+++ b/test/built-ins/Object/defineProperty/15.2.3.6-4-95.js
@@ -34,16 +34,14 @@ try {
   });
   throw new Test262Error("Expected an exception.");
 } catch (e) {
-  verifyEqualTo(obj, "foo", obj1);
-
-  verifyNotWritable(obj, "foo");
-
-  verifyNotEnumerable(obj, "foo");
-
-  verifyNotConfigurable(obj, "foo");
-
   if (!(e instanceof TypeError)) {
     throw new Test262Error("Expected TypeError, got " + e);
   }
-
 }
+
+verifyProperty(obj, "foo", {
+  value: obj1,
+  writable: false,
+  enumerable: false,
+  configurable: false,
+});
diff --git a/test/built-ins/Object/defineProperty/15.2.3.6-4-96.js b/test/built-ins/Object/defineProperty/15.2.3.6-4-96.js
index 0f8ebadfad..2fe228d84d 100644
--- a/test/built-ins/Object/defineProperty/15.2.3.6-4-96.js
+++ b/test/built-ins/Object/defineProperty/15.2.3.6-4-96.js
@@ -27,6 +27,7 @@ Object.defineProperty(obj, "foo", {
 });
 verifyWritable(obj, "foo", "setVerifyHelpProp");
 
-verifyNotEnumerable(obj, "foo");
-
-verifyNotConfigurable(obj, "foo");
+verifyProperty(obj, "foo", {
+  enumerable: false,
+  configurable: false,
+});
diff --git a/test/built-ins/Object/defineProperty/15.2.3.6-4-97.js b/test/built-ins/Object/defineProperty/15.2.3.6-4-97.js
index 38ef4724f0..1d76f315ac 100644
--- a/test/built-ins/Object/defineProperty/15.2.3.6-4-97.js
+++ b/test/built-ins/Object/defineProperty/15.2.3.6-4-97.js
@@ -33,12 +33,12 @@ try {
 } catch (e) {
   verifyEqualTo(obj, "property", getFunc());
 
-  verifyNotEnumerable(obj, "property");
-
-  verifyNotConfigurable(obj, "property");
-
   if (!(e instanceof TypeError)) {
     throw new Test262Error("Expected TypeError, got " + e);
   }
-
 }
+
+verifyProperty(obj, "property", {
+  enumerable: false,
+  configurable: false,
+});
diff --git a/test/built-ins/Object/defineProperty/15.2.3.6-4-98.js b/test/built-ins/Object/defineProperty/15.2.3.6-4-98.js
index eb0f2a07cf..583ad4adf9 100644
--- a/test/built-ins/Object/defineProperty/15.2.3.6-4-98.js
+++ b/test/built-ins/Object/defineProperty/15.2.3.6-4-98.js
@@ -35,6 +35,7 @@ verifyEqualTo(obj, "foo", getFunc());
 
 verifyWritable(obj, "foo", "verifyGetHelpMethod");
 
-verifyNotEnumerable(obj, "foo");
-
-verifyNotConfigurable(obj, "foo");
+verifyProperty(obj, "foo", {
+  enumerable: false,
+  configurable: false,
+});
diff --git a/test/built-ins/Object/defineProperty/15.2.3.6-4-99.js b/test/built-ins/Object/defineProperty/15.2.3.6-4-99.js
index 8aaba926f1..c5de2003f4 100644
--- a/test/built-ins/Object/defineProperty/15.2.3.6-4-99.js
+++ b/test/built-ins/Object/defineProperty/15.2.3.6-4-99.js
@@ -35,12 +35,12 @@ try {
 } catch (e) {
   verifyWritable(obj, "foo", "setVerifyHelpProp");
 
-  verifyNotEnumerable(obj, "foo");
-
-  verifyNotConfigurable(obj, "foo");
-
   if (!(e instanceof TypeError)) {
     throw new Test262Error("Expected TypeError, got " + e);
   }
-
 }
+
+verifyProperty(obj, "foo", {
+  enumerable: false,
+  configurable: false,
+});
diff --git a/test/built-ins/Object/defineProperty/name.js b/test/built-ins/Object/defineProperty/name.js
index e722dd90e5..89d4b5858a 100644
--- a/test/built-ins/Object/defineProperty/name.js
+++ b/test/built-ins/Object/defineProperty/name.js
@@ -19,8 +19,9 @@ info: |
 includes: [propertyHelper.js]
 ---*/
 
-assert.sameValue(Object.defineProperty.name, "defineProperty");
-
-verifyNotEnumerable(Object.defineProperty, "name");
-verifyNotWritable(Object.defineProperty, "name");
-verifyConfigurable(Object.defineProperty, "name");
+verifyProperty(Object.defineProperty, "name", {
+  value: "defineProperty",
+  writable: false,
+  enumerable: false,
+  configurable: true,
+});