diff options
Diffstat (limited to 'js/src/tests/test262/built-ins/Array/fromAsync/asyncitems-iterator-promise.js')
-rw-r--r-- | js/src/tests/test262/built-ins/Array/fromAsync/asyncitems-iterator-promise.js | 34 |
1 files changed, 34 insertions, 0 deletions
diff --git a/js/src/tests/test262/built-ins/Array/fromAsync/asyncitems-iterator-promise.js b/js/src/tests/test262/built-ins/Array/fromAsync/asyncitems-iterator-promise.js new file mode 100644 index 0000000000..b99e5af4cd --- /dev/null +++ b/js/src/tests/test262/built-ins/Array/fromAsync/asyncitems-iterator-promise.js @@ -0,0 +1,34 @@ +// |reftest| async +// Copyright (C) 2022 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.fromAsync handles an async iterator returned from @@iterator +includes: [asyncHelpers.js, compareArray.js, temporalHelpers.js] +flags: [async] +features: [Array.fromAsync] +---*/ + +asyncTest(async function () { + function * asyncGen() { + for (let i = 0; i < 4; i++) { + yield Promise.resolve(i * 2); + } + } + + const actual = []; + const items = {}; + TemporalHelpers.observeProperty(actual, items, Symbol.asyncIterator, undefined, "items"); + TemporalHelpers.observeProperty(actual, items, Symbol.iterator, asyncGen, "items"); + TemporalHelpers.observeProperty(actual, items, "length", 2, "items"); + TemporalHelpers.observeProperty(actual, items, 0, 2, "items"); + TemporalHelpers.observeProperty(actual, items, 1, 1, "items"); + const result = await Array.fromAsync(items); + assert.compareArray(result, [0, 2, 4, 6]); + assert.compareArray(actual, [ + "get items[Symbol.asyncIterator]", + "get items[Symbol.iterator]", + ]); +}); |