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Diffstat (limited to 'js/src/tests/test262/built-ins/Array/fromAsync/asyncitems-arraylike-holes.js')
-rw-r--r-- | js/src/tests/test262/built-ins/Array/fromAsync/asyncitems-arraylike-holes.js | 25 |
1 files changed, 25 insertions, 0 deletions
diff --git a/js/src/tests/test262/built-ins/Array/fromAsync/asyncitems-arraylike-holes.js b/js/src/tests/test262/built-ins/Array/fromAsync/asyncitems-arraylike-holes.js new file mode 100644 index 0000000000..5396f9015b --- /dev/null +++ b/js/src/tests/test262/built-ins/Array/fromAsync/asyncitems-arraylike-holes.js @@ -0,0 +1,25 @@ +// |reftest| async +// Copyright (C) 2023 Igalia, S.L. All rights reserved. +// This code is governed by the BSD license found in the LICENSE file. + +/*--- +esid: sec-array.fromasync +description: Array-like object with holes treats the holes as undefined +info: | + 3.k.vii.2. Let _kValue_ be ? Get(_arrayLike_, _Pk_). +features: [Array.fromAsync] +flags: [async] +includes: [asyncHelpers.js, compareArray.js] +---*/ + +asyncTest(async function () { + const arrayLike = Object.create(null); + arrayLike.length = 5; + arrayLike[0] = 0; + arrayLike[1] = 1; + arrayLike[2] = 2; + arrayLike[4] = 4; + + const array = await Array.fromAsync(arrayLike); + assert.compareArray(array, [0, 1, 2, undefined, 4], "holes in array-like treated as undefined"); +}); |