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Diffstat (limited to 'js/src/tests/test262/built-ins/Array/prototype/splice/length-exceeding-integer-limit-shrink-array.js')
-rw-r--r-- | js/src/tests/test262/built-ins/Array/prototype/splice/length-exceeding-integer-limit-shrink-array.js | 67 |
1 files changed, 67 insertions, 0 deletions
diff --git a/js/src/tests/test262/built-ins/Array/prototype/splice/length-exceeding-integer-limit-shrink-array.js b/js/src/tests/test262/built-ins/Array/prototype/splice/length-exceeding-integer-limit-shrink-array.js new file mode 100644 index 0000000000..cd3420ae11 --- /dev/null +++ b/js/src/tests/test262/built-ins/Array/prototype/splice/length-exceeding-integer-limit-shrink-array.js @@ -0,0 +1,67 @@ +// Copyright (C) 2017 André Bargull. All rights reserved. +// This code is governed by the BSD license found in the LICENSE file. + +/*--- +esid: sec-array.prototype.splice +description: > + An element is removed from an array-like object whose length exceeds the integer limit. +info: | + ... + 15. If itemCount < actualDeleteCount, then + a. Let k be actualStart. + b. Repeat, while k < (len - actualDeleteCount) + i. Let from be ! ToString(k+actualDeleteCount). + ii. Let to be ! ToString(k+itemCount). + iii. Let fromPresent be ? HasProperty(O, from). + iv. If fromPresent is true, then + 1. Let fromValue be ? Get(O, from). + 2. Perform ? Set(O, to, fromValue, true). + v. Else fromPresent is false, + 1. Perform ? DeletePropertyOrThrow(O, to). + vi. Increase k by 1. + c. Let k be len. + d. Repeat, while k > (len - actualDeleteCount + itemCount) + i. Perform ? DeletePropertyOrThrow(O, ! ToString(k-1)). + ii. Decrease k by 1. + ... +includes: [compareArray.js] +features: [exponentiation] +---*/ + +var arrayLike = { + "9007199254740986": "9007199254740986", + "9007199254740987": "9007199254740987", + "9007199254740988": "9007199254740988", + /* "9007199254740989": hole */ + "9007199254740990": "9007199254740990", + "9007199254740991": "9007199254740991", + length: 2 ** 53 + 2, +}; + +var result = Array.prototype.splice.call(arrayLike, 9007199254740987, 1); + +assert.compareArray(result, ["9007199254740987"], + 'The value of result is expected to be ["9007199254740987"]'); + +assert.sameValue(arrayLike.length, 2 ** 53 - 2, + 'The value of arrayLike.length is expected to be 2 ** 53 - 2'); + +assert.sameValue(arrayLike["9007199254740986"], "9007199254740986", + 'The value of arrayLike["9007199254740986"] is expected to be "9007199254740986"'); + +assert.sameValue(arrayLike["9007199254740987"], "9007199254740988", + 'The value of arrayLike["9007199254740987"] is expected to be "9007199254740988"'); + +assert.sameValue("9007199254740988" in arrayLike, false, + 'The result of evaluating ("9007199254740988" in arrayLike) is expected to be false'); + +assert.sameValue(arrayLike["9007199254740989"], "9007199254740990", + 'The value of arrayLike["9007199254740989"] is expected to be "9007199254740990"'); + +assert.sameValue("9007199254740990" in arrayLike, false, + 'The result of evaluating ("9007199254740990" in arrayLike) is expected to be false'); + +assert.sameValue(arrayLike["9007199254740991"], "9007199254740991", + 'The value of arrayLike["9007199254740991"] is expected to be "9007199254740991"'); + +reportCompare(0, 0); |