From fe2dfe95253b975eb2840097fae68038b68fc691 Mon Sep 17 00:00:00 2001
From: Alexey Shvayka <shvaikalesh@gmail.com>
Date: Fri, 20 Mar 2020 20:34:31 +0200
Subject: [PATCH] Add "lastIndex" init test

---
 .../set-lastindex-init-samevalue.js           | 30 +++++++++++++++++++
 1 file changed, 30 insertions(+)
 create mode 100644 test/built-ins/RegExp/prototype/Symbol.search/set-lastindex-init-samevalue.js

diff --git a/test/built-ins/RegExp/prototype/Symbol.search/set-lastindex-init-samevalue.js b/test/built-ins/RegExp/prototype/Symbol.search/set-lastindex-init-samevalue.js
new file mode 100644
index 0000000000..e2250e38b1
--- /dev/null
+++ b/test/built-ins/RegExp/prototype/Symbol.search/set-lastindex-init-samevalue.js
@@ -0,0 +1,30 @@
+// Copyright (C) 2020 Alexey Shvayka. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+esid: sec-regexp.prototype-@@search
+description: >
+  `previousLastIndex` value is compared using SameValue. 
+info: |
+  RegExp.prototype [ @@search ] ( string )
+
+  [...]
+  4. Let previousLastIndex be ? Get(rx, "lastIndex").
+  5. If SameValue(previousLastIndex, 0) is false, then
+    a. Perform ? Set(rx, "lastIndex", 0, true).
+  6. Let result be ? RegExpExec(rx, S).
+  [...]
+features: [Symbol.search]
+---*/
+
+var re = /(?:)/;
+var execLastIndex;
+
+re.lastIndex = -0;
+re.exec = function() {
+  execLastIndex = re.lastIndex;
+  return null;
+};
+
+assert.sameValue(re[Symbol.search](""), -1);
+assert.sameValue(execLastIndex, 0);