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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 19:33:14 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 19:33:14 +0000 |
commit | 36d22d82aa202bb199967e9512281e9a53db42c9 (patch) | |
tree | 105e8c98ddea1c1e4784a60a5a6410fa416be2de /js/src/tests/test262/built-ins/TypedArray/prototype/at/returns-undefined-for-holes-in-sparse-arrays.js | |
parent | Initial commit. (diff) | |
download | firefox-esr-36d22d82aa202bb199967e9512281e9a53db42c9.tar.xz firefox-esr-36d22d82aa202bb199967e9512281e9a53db42c9.zip |
Adding upstream version 115.7.0esr.upstream/115.7.0esrupstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'js/src/tests/test262/built-ins/TypedArray/prototype/at/returns-undefined-for-holes-in-sparse-arrays.js')
-rw-r--r-- | js/src/tests/test262/built-ins/TypedArray/prototype/at/returns-undefined-for-holes-in-sparse-arrays.js | 52 |
1 files changed, 52 insertions, 0 deletions
diff --git a/js/src/tests/test262/built-ins/TypedArray/prototype/at/returns-undefined-for-holes-in-sparse-arrays.js b/js/src/tests/test262/built-ins/TypedArray/prototype/at/returns-undefined-for-holes-in-sparse-arrays.js new file mode 100644 index 0000000000..c4eafb1e10 --- /dev/null +++ b/js/src/tests/test262/built-ins/TypedArray/prototype/at/returns-undefined-for-holes-in-sparse-arrays.js @@ -0,0 +1,52 @@ +// Copyright (C) 2020 Rick Waldron. All rights reserved. +// This code is governed by the BSD license found in the LICENSE file. +/*--- +esid: sec-%typedarray%.prototype.at +description: > + Returns the item value at the specified index, holes are filled in sparse arrays. +info: | + %TypedArray%.prototype.at( index ) + + Let O be the this value. + Perform ? ValidateTypedArray(O). + Let len be O.[[ArrayLength]]. + Let relativeIndex be ? ToInteger(index). + If relativeIndex ≥ 0, then + Let k be relativeIndex. + Else, + Let k be len + relativeIndex. + If k < 0 or k ≥ len, then return undefined. + Return ? Get(O, ! ToString(k)). + +includes: [testTypedArray.js] +features: [TypedArray, TypedArray.prototype.at] +---*/ +assert.sameValue( + typeof TypedArray.prototype.at, + 'function', + 'The value of `typeof TypedArray.prototype.at` is "function"' +); + +testWithTypedArrayConstructors(TA => { + let a = new TA([0, 1, , 3, 4, , 6]); + let filler = 0; + if (TA.name.startsWith('Float')) { + filler = NaN; + } + assert.sameValue(a.at(0), 0, 'a.at(0) must return 0'); + assert.sameValue(a.at(1), 1, 'a.at(1) must return 1'); + assert.sameValue(a.at(2), filler, 'a.at(2) must return the value of filler'); + assert.sameValue(a.at(3), 3, 'a.at(3) must return 3'); + assert.sameValue(a.at(4), 4, 'a.at(4) must return 4'); + assert.sameValue(a.at(5), filler, 'a.at(5) must return the value of filler'); + assert.sameValue(a.at(6), 6, 'a.at(6) must return 6'); + assert.sameValue(a.at(-0), 0, 'a.at(-0) must return 0'); + assert.sameValue(a.at(-1), 6, 'a.at(-1) must return 6'); + assert.sameValue(a.at(-2), filler, 'a.at(-2) must return the value of filler'); + assert.sameValue(a.at(-3), 4, 'a.at(-3) must return 4'); + assert.sameValue(a.at(-4), 3, 'a.at(-4) must return 3'); + assert.sameValue(a.at(-5), filler, 'a.at(-5) must return the value of filler'); + assert.sameValue(a.at(-6), 1, 'a.at(-6) must return 1'); +}); + +reportCompare(0, 0); |