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Diffstat (limited to 'js/src/tests/test262/built-ins/Array/fromAsync/this-constructor-with-unsettable-element-closes-async-iterator.js')
-rw-r--r-- | js/src/tests/test262/built-ins/Array/fromAsync/this-constructor-with-unsettable-element-closes-async-iterator.js | 44 |
1 files changed, 44 insertions, 0 deletions
diff --git a/js/src/tests/test262/built-ins/Array/fromAsync/this-constructor-with-unsettable-element-closes-async-iterator.js b/js/src/tests/test262/built-ins/Array/fromAsync/this-constructor-with-unsettable-element-closes-async-iterator.js new file mode 100644 index 0000000000..4986847991 --- /dev/null +++ b/js/src/tests/test262/built-ins/Array/fromAsync/this-constructor-with-unsettable-element-closes-async-iterator.js @@ -0,0 +1,44 @@ +// |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: > + Closes an async iterator if setting an element fails on an instance of a + custom this-value +info: | + 3.j.ii.8. Let _defineStatus_ be CreateDataPropertyOrThrow(_A_, _Pk_, _mappedValue_). + 9. If _defineStatus_ is an abrupt completion, return ? AsyncIteratorClose(_iteratorRecord_, _defineStatus_). +includes: [asyncHelpers.js] +flags: [async] +features: [Array.fromAsync] +---*/ + +asyncTest(async function () { + function MyArray() { + Object.defineProperty(this, 0, { + enumerable: true, + writable: true, + configurable: false, + value: 0 + }); + } + + let closed = false; + const iterator = { + next() { + return Promise.resolve({ value: 1, done: false }); + }, + return() { + closed = true; + return Promise.resolve({ done: true }); + }, + [Symbol.asyncIterator]() { + return this; + } + } + + await assert.throwsAsync(TypeError, () => Array.fromAsync.call(MyArray, iterator), "Promise rejected if defining element fails"); + assert(closed, "element define failure should close iterator"); +}); |