diff options
Diffstat (limited to 'js/src/tests/test262/built-ins/Array/fromAsync/asyncitems-object-not-arraylike.js')
-rw-r--r-- | js/src/tests/test262/built-ins/Array/fromAsync/asyncitems-object-not-arraylike.js | 24 |
1 files changed, 24 insertions, 0 deletions
diff --git a/js/src/tests/test262/built-ins/Array/fromAsync/asyncitems-object-not-arraylike.js b/js/src/tests/test262/built-ins/Array/fromAsync/asyncitems-object-not-arraylike.js new file mode 100644 index 0000000000..62f3dd27b4 --- /dev/null +++ b/js/src/tests/test262/built-ins/Array/fromAsync/asyncitems-object-not-arraylike.js @@ -0,0 +1,24 @@ +// |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: > + Treats an asyncItems object that isn't an array-like as a 0-length array-like +info: | + 3.k.iii. Let _len_ be ? LengthOfArrayLike(_arrayLike_). +features: [Array.fromAsync] +flags: [async] +includes: [asyncHelpers.js, compareArray.js] +---*/ + +asyncTest(async function () { + const notArrayLike = Object.create(null); + notArrayLike[0] = 0; + notArrayLike[1] = 1; + notArrayLike[2] = 2; + + const array = await Array.fromAsync(notArrayLike); + assert.compareArray(array, [], "non-array-like object is treated as 0-length array-like"); +}); |