diff options
Diffstat (limited to 'js/src/tests/test262/built-ins/Array/prototype/toReversed/length-decreased-while-iterating.js')
-rw-r--r-- | js/src/tests/test262/built-ins/Array/prototype/toReversed/length-decreased-while-iterating.js | 34 |
1 files changed, 34 insertions, 0 deletions
diff --git a/js/src/tests/test262/built-ins/Array/prototype/toReversed/length-decreased-while-iterating.js b/js/src/tests/test262/built-ins/Array/prototype/toReversed/length-decreased-while-iterating.js new file mode 100644 index 0000000000..9d0e7f301c --- /dev/null +++ b/js/src/tests/test262/built-ins/Array/prototype/toReversed/length-decreased-while-iterating.js @@ -0,0 +1,34 @@ +// Copyright (C) 2021 Igalia, S.L. All rights reserved. +// This code is governed by the BSD license found in the LICENSE file. + +/*--- +esid: sec-array.prototype.toReversed +description: > + Array.prototype.toReversed caches the length getting the array elements. +info: | + Array.prototype.toReversed ( ) + + ... + 2. Let len be ? LengthOfArrayLike(O). + ... + 5. Repeat, while k < len + ... + c. Let fromValue be ? Get(O, from). + ... +features: [change-array-by-copy] +includes: [compareArray.js] +---*/ + +var arr = [0, 1, 2, 3, 4]; +Array.prototype[1] = 5; + +Object.defineProperty(arr, "3", { + get() { + arr.length = 1; + return 3; + } +}); + +assert.compareArray(arr.toReversed(), [4, 3, undefined, 5, 0]); + +reportCompare(0, 0); |