From 36d22d82aa202bb199967e9512281e9a53db42c9 Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Sun, 7 Apr 2024 21:33:14 +0200 Subject: Adding upstream version 115.7.0esr. Signed-off-by: Daniel Baumann --- ...n-undefined-if-predicate-returns-false-value.js | 51 ++++++++++++++++++++++ 1 file changed, 51 insertions(+) create mode 100644 js/src/tests/test262/built-ins/TypedArray/prototype/findLast/return-undefined-if-predicate-returns-false-value.js (limited to 'js/src/tests/test262/built-ins/TypedArray/prototype/findLast/return-undefined-if-predicate-returns-false-value.js') diff --git a/js/src/tests/test262/built-ins/TypedArray/prototype/findLast/return-undefined-if-predicate-returns-false-value.js b/js/src/tests/test262/built-ins/TypedArray/prototype/findLast/return-undefined-if-predicate-returns-false-value.js new file mode 100644 index 0000000000..313915e115 --- /dev/null +++ b/js/src/tests/test262/built-ins/TypedArray/prototype/findLast/return-undefined-if-predicate-returns-false-value.js @@ -0,0 +1,51 @@ +// Copyright (C) 2021 Microsoft. All rights reserved. +// This code is governed by the BSD license found in the LICENSE file. +/*--- +esid: sec-%typedarray%.prototype.findlast +description: > + Return undefined if predicate always returns a boolean false value. +info: | + %TypedArray%.prototype.findLast (predicate [ , thisArg ] ) + + ... + 6. 6. Repeat, while k ≥ 0 + ... + c. Let testResult be ! ToBoolean(? Call(predicate, thisArg, « kValue, 𝔽(k), O »)). + ... + 7. Return undefined. +includes: [testTypedArray.js] +features: [Symbol, TypedArray, array-find-from-last] +---*/ + +testWithTypedArrayConstructors(function(TA) { + var sample = new TA(3); + var called = 0; + + var result = sample.findLast(function() { + called++; + return false; + }); + + assert.sameValue(called, 3, "predicate was called three times"); + assert.sameValue(result, undefined); + + result = sample.findLast(function() { return ""; }); + assert.sameValue(result, undefined, "ToBoolean(empty string)"); + + result = sample.findLast(function() { return undefined; }); + assert.sameValue(result, undefined, "ToBoolean(undefined)"); + + result = sample.findLast(function() { return null; }); + assert.sameValue(result, undefined, "ToBoolean(null)"); + + result = sample.findLast(function() { return 0; }); + assert.sameValue(result, undefined, "ToBoolean(0)"); + + result = sample.findLast(function() { return -0; }); + assert.sameValue(result, undefined, "ToBoolean(-0)"); + + result = sample.findLast(function() { return NaN; }); + assert.sameValue(result, undefined, "ToBoolean(NaN)"); +}); + +reportCompare(0, 0); -- cgit v1.2.3