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Diffstat (limited to '')
-rw-r--r-- | js/src/tests/test262/built-ins/Atomics/waitAsync/returns-result-object-value-is-promise-resolves-to-ok.js | 52 |
1 files changed, 52 insertions, 0 deletions
diff --git a/js/src/tests/test262/built-ins/Atomics/waitAsync/returns-result-object-value-is-promise-resolves-to-ok.js b/js/src/tests/test262/built-ins/Atomics/waitAsync/returns-result-object-value-is-promise-resolves-to-ok.js new file mode 100644 index 0000000000..41fb6ae31c --- /dev/null +++ b/js/src/tests/test262/built-ins/Atomics/waitAsync/returns-result-object-value-is-promise-resolves-to-ok.js @@ -0,0 +1,52 @@ +// |reftest| skip async -- Atomics.waitAsync is not supported +// Copyright (C) 2020 Rick Waldron. All rights reserved. +// This code is governed by the BSD license found in the LICENSE file. + +/*--- +esid: sec-atomics.waitasync +description: > + Atomics.waitAsync returns a result object containing a property named "value" whose value is a promise that resolves to "ok" and async is true. +info: | + Atomics.waitAsync( typedArray, index, value, timeout ) + + 1. Return DoWait(async, typedArray, index, value, timeout). + + DoWait ( mode, typedArray, index, value, timeout ) + + ... + 13. Let promiseCapability be undefined. + 14. If mode is async, then + a. Set promiseCapability to ! NewPromiseCapability(%Promise%). + + ... + Perform ! CreateDataPropertyOrThrow(_resultObject_, *"async"*, *true*). + Perform ! CreateDataPropertyOrThrow(_resultObject_, *"value"*, _promiseCapability_.[[Promise]]). + Return _resultObject_. + +flags: [async] +features: [Atomics.waitAsync, TypedArray, SharedArrayBuffer, destructuring-binding, Atomics, arrow-function] +---*/ +assert.sameValue(typeof Atomics.waitAsync, 'function', 'The value of `typeof Atomics.waitAsync` is "function"'); + +const i32a = new Int32Array( + new SharedArrayBuffer(Int32Array.BYTES_PER_ELEMENT * 8) +); + +let {async, value} = Atomics.waitAsync(i32a, 0, 0, 1000); +assert.sameValue(async, true, 'The value of `async` is true'); +assert(value instanceof Promise, 'The result of evaluating `(value instanceof Promise)` is true'); +assert.sameValue( + Object.getPrototypeOf(value), + Promise.prototype, + 'Object.getPrototypeOf(value) must return the value of Promise.prototype' +); + +value.then(outcome => { + assert.sameValue(outcome, "ok", 'The value of `outcome` is "ok"'); +}).then(() => $DONE(), $DONE); + +Atomics.add(i32a, 0, 1); +Atomics.notify(i32a, 0, 1); + + + |