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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/findLastIndex/return-negative-one-if-predicate-returns-false-value.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/findLastIndex/return-negative-one-if-predicate-returns-false-value.js')
-rw-r--r-- | js/src/tests/test262/built-ins/Array/prototype/findLastIndex/return-negative-one-if-predicate-returns-false-value.js | 55 |
1 files changed, 55 insertions, 0 deletions
diff --git a/js/src/tests/test262/built-ins/Array/prototype/findLastIndex/return-negative-one-if-predicate-returns-false-value.js b/js/src/tests/test262/built-ins/Array/prototype/findLastIndex/return-negative-one-if-predicate-returns-false-value.js new file mode 100644 index 0000000000..594091f81d --- /dev/null +++ b/js/src/tests/test262/built-ins/Array/prototype/findLastIndex/return-negative-one-if-predicate-returns-false-value.js @@ -0,0 +1,55 @@ +// Copyright (C) 2021 Microsoft. All rights reserved. +// This code is governed by the BSD license found in the LICENSE file. +/*--- +esid: sec-array.prototype.findlastindex +description: > + Return -1 if predicate always returns a boolean false value. +info: | + Array.prototype.findLastIndex ( predicate[ , thisArg ] ) + + ... + 5. Repeat, while k ≥ 0, + ... + c. Let testResult be ! ToBoolean(? Call(predicate, thisArg, « kValue, 𝔽(k), O »)). + ... + 6. Return -1. +features: [Symbol, array-find-from-last] +---*/ + +var arr = ['Shoes', 'Car', 'Bike']; +var called = 0; + +var result = arr.findLastIndex(function() { + called++; + return false; +}); + +assert.sameValue(called, 3, 'predicate was called three times'); +assert.sameValue(result, -1); + +result = arr.findLastIndex(function() { + return ''; +}); +assert.sameValue(result, -1, 'coerced string'); + +result = arr.findLastIndex(function() { + return undefined; +}); +assert.sameValue(result, -1, 'coerced undefined'); + +result = arr.findLastIndex(function() { + return null; +}); +assert.sameValue(result, -1, 'coerced null'); + +result = arr.findLastIndex(function() { + return 0; +}); +assert.sameValue(result, -1, 'coerced 0'); + +result = arr.findLastIndex(function() { + return NaN; +}); +assert.sameValue(result, -1, 'coerced NaN'); + +reportCompare(0, 0); |