From c650b1a9b088afde24911e82c428d03de635e5be Mon Sep 17 00:00:00 2001 From: Sam Mikes Date: Fri, 1 Aug 2014 13:43:24 +0100 Subject: [PATCH] ES5.S15: new tests to clarify Array.concat Test of spec language from 15.4.4.4, 5.b.iii.3.b states 'Call the [[DefineOwnProeprty]] internal method of A' which means that the result of Array.prototype.concat should return `true` from `hasOwnProperty` for every property created by `concat`, up to `length` Set length to 3. a[0] is set to 0 on a a[1] is unset a[2] is set to 2 via a prototype of a add assertions for values of b[0], b[1], b[2] add assertions for b.hasOwnProperty('2') Check with Array.prototype and Object.prototype, separate tests fix typo in assertion message test was correct, but assertion message was incorrect --- .../15.4/15.4.4/15.4.4.4/S15.4.4.4_A3_T2.js | 64 +++++++++++++++++++ .../15.4/15.4.4/15.4.4.4/S15.4.4.4_A3_T3.js | 64 +++++++++++++++++++ 2 files changed, 128 insertions(+) create mode 100644 test/suite/ch15/15.4/15.4.4/15.4.4.4/S15.4.4.4_A3_T2.js create mode 100644 test/suite/ch15/15.4/15.4.4/15.4.4.4/S15.4.4.4_A3_T3.js diff --git a/test/suite/ch15/15.4/15.4.4/15.4.4.4/S15.4.4.4_A3_T2.js b/test/suite/ch15/15.4/15.4.4/15.4.4.4/S15.4.4.4_A3_T2.js new file mode 100644 index 0000000000..771862b347 --- /dev/null +++ b/test/suite/ch15/15.4/15.4.4/15.4.4.4/S15.4.4.4_A3_T2.js @@ -0,0 +1,64 @@ +// Copyright 2014 Ecma International. All rights reserved. +// See LICENSE or https://github.com/tc39/test262/blob/master/LICENSE + +/*--- +info: Array.prototype.concat uses [[Get]] on 'length' to determine array length +es5id: 15.4.4.4_A3_T2 +description: > + checking whether non-ownProperties are seen, copied by Array.prototype.concat: Array.prototype[1] +---*/ + +var a = [0]; + +if (a.length !== 1) { + $ERROR("expected a.length === 1, actually " + a.length); +} + +a.length = 3; + +if (a[1] !== undefined) { + $ERROR("expected a[1] === undefined, actually " + a[1]); +} +if (a[2] !== undefined) { + $ERROR("expected a[2] === undefined, actually " + a[2]); +} + +Array.prototype[2] = 2; + +if (a[1] !== undefined) { + $ERROR("expected a[1] === undefined, actually " + a[1]); +} +if (a[2] !== 2) { + $ERROR("expected a[2] === 2, actually " + a[2]); +} + +if (a.hasOwnProperty('1') !== false) { + $ERROR("a.hasOwnProperty('1') === false, actually " + a.hasOwnProperty('1')); +} +if (a.hasOwnProperty('2') !== false) { + $ERROR("a.hasOwnProperty('2') === false, actually " + a.hasOwnProperty('2')); +} + +var b = a.concat(); + +if (b.length !== 3) { + $ERROR("expected b.length === 3, actually " + b.length); +} + +if (b[0] !== 0) { + $ERROR("expected b[0] === 0, actually " + b[0]); +} +if (b[1] !== undefined) { + $ERROR("expected b[1] === undefined, actually " + b[1]); +} +if (b[2] !== 2) { + $ERROR("expected b[2] === 2, actually " + b[2]); +} + +if (b.hasOwnProperty('1') !== false) { + $ERROR("expected b.hasOwnProperty('1') === false, actually " + b.hasOwnProperty('1')); +} +if (b.hasOwnProperty('2') !== true) { + $ERROR("expected b.hasOwnProperty('2') === true, actually " + b.hasOwnProperty('2')); +} + diff --git a/test/suite/ch15/15.4/15.4.4/15.4.4.4/S15.4.4.4_A3_T3.js b/test/suite/ch15/15.4/15.4.4/15.4.4.4/S15.4.4.4_A3_T3.js new file mode 100644 index 0000000000..8435746525 --- /dev/null +++ b/test/suite/ch15/15.4/15.4.4/15.4.4.4/S15.4.4.4_A3_T3.js @@ -0,0 +1,64 @@ +// Copyright 2014 Ecma International. All rights reserved. +// See LICENSE or https://github.com/tc39/test262/blob/master/LICENSE + +/*--- +info: Array.prototype.concat uses [[Get]] on 'length' to determine array length +es5id: 15.4.4.4_A3_T3 +description: > + checking whether non-ownProperties are seen, copied by Array.prototype.concat: Object.prototype[1] +---*/ + +var a = [0]; + +if (a.length !== 1) { + $ERROR("expected a.length === 1, actually " + a.length); +} + +a.length = 3; + +if (a[1] !== undefined) { + $ERROR("expected a[1] === undefined, actually " + a[1]); +} +if (a[2] !== undefined) { + $ERROR("expected a[2] === undefined, actually " + a[2]); +} + +Object.prototype[2] = 2; + +if (a[1] !== undefined) { + $ERROR("expected a[1] === undefined, actually " + a[1]); +} +if (a[2] !== 2) { + $ERROR("expected a[2] === 2, actually " + a[2]); +} + +if (a.hasOwnProperty('1') !== false) { + $ERROR("a.hasOwnProperty('1') === false, actually " + a.hasOwnProperty('1')); +} +if (a.hasOwnProperty('2') !== false) { + $ERROR("a.hasOwnProperty('2') === false, actually " + a.hasOwnProperty('2')); +} + +var b = a.concat(); + +if (b.length !== 3) { + $ERROR("expected b.length === 3, actually " + b.length); +} + +if (b[0] !== 0) { + $ERROR("expected b[0] === 0, actually " + b[0]); +} +if (b[1] !== undefined) { + $ERROR("expected b[1] === undefined, actually " + b[1]); +} +if (b[2] !== 2) { + $ERROR("expected b[2] === 2, actually " + b[2]); +} + +if (b.hasOwnProperty('1') !== false) { + $ERROR("expected b.hasOwnProperty('1') === false, actually " + b.hasOwnProperty('1')); +} +if (b.hasOwnProperty('2') !== true) { + $ERROR("expected b.hasOwnProperty('2') === true, actually " + b.hasOwnProperty('2')); +} +