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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-19 00:47:55 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-19 00:47:55 +0000 |
commit | 26a029d407be480d791972afb5975cf62c9360a6 (patch) | |
tree | f435a8308119effd964b339f76abb83a57c29483 /js/src/tests/test262/built-ins/Array/prototype/findLast/array-altered-during-loop.js | |
parent | Initial commit. (diff) | |
download | firefox-26a029d407be480d791972afb5975cf62c9360a6.tar.xz firefox-26a029d407be480d791972afb5975cf62c9360a6.zip |
Adding upstream version 124.0.1.upstream/124.0.1
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'js/src/tests/test262/built-ins/Array/prototype/findLast/array-altered-during-loop.js')
-rw-r--r-- | js/src/tests/test262/built-ins/Array/prototype/findLast/array-altered-during-loop.js | 49 |
1 files changed, 49 insertions, 0 deletions
diff --git a/js/src/tests/test262/built-ins/Array/prototype/findLast/array-altered-during-loop.js b/js/src/tests/test262/built-ins/Array/prototype/findLast/array-altered-during-loop.js new file mode 100644 index 0000000000..99746b971a --- /dev/null +++ b/js/src/tests/test262/built-ins/Array/prototype/findLast/array-altered-during-loop.js @@ -0,0 +1,49 @@ +// Copyright (C) 2021 Microsoft. All rights reserved. +// This code is governed by the BSD license found in the LICENSE file. +/*--- +esid: sec-array.prototype.findlast +description: > + The range of elements processed is set before the first call to `predicate`. +info: | + Array.prototype.findLast ( predicate[ , thisArg ] ) + + ... + 4. Let k be len - 1. + 5. Repeat, while k ≥ 0, + ... + c. Let testResult be ! ToBoolean(? Call(predicate, thisArg, « kValue, 𝔽(k), O »)). + ... +features: [array-find-from-last] +---*/ + +var arr = ['Shoes', 'Car', 'Bike']; +var results = []; + +arr.findLast(function(kValue) { + if (results.length === 0) { + arr.splice(1, 1); + } + results.push(kValue); +}); + +assert.sameValue(results.length, 3, 'predicate called three times'); +assert.sameValue(results[0], 'Bike'); +assert.sameValue(results[1], 'Bike'); +assert.sameValue(results[2], 'Shoes'); + +results = []; +arr = ['Skateboard', 'Barefoot']; +arr.findLast(function(kValue) { + if (results.length === 0) { + arr.push('Motorcycle'); + arr[0] = 'Magic Carpet'; + } + + results.push(kValue); +}); + +assert.sameValue(results.length, 2, 'predicate called twice'); +assert.sameValue(results[0], 'Barefoot'); +assert.sameValue(results[1], 'Magic Carpet'); + +reportCompare(0, 0); |