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Diffstat (limited to 'js/src/tests/test262/built-ins/AsyncGeneratorPrototype/return/iterator-result-prototype.js')
-rw-r--r-- | js/src/tests/test262/built-ins/AsyncGeneratorPrototype/return/iterator-result-prototype.js | 48 |
1 files changed, 48 insertions, 0 deletions
diff --git a/js/src/tests/test262/built-ins/AsyncGeneratorPrototype/return/iterator-result-prototype.js b/js/src/tests/test262/built-ins/AsyncGeneratorPrototype/return/iterator-result-prototype.js new file mode 100644 index 0000000000..39af19d852 --- /dev/null +++ b/js/src/tests/test262/built-ins/AsyncGeneratorPrototype/return/iterator-result-prototype.js @@ -0,0 +1,48 @@ +// |reftest| async +// Copyright (C) 2018 Valerie Young. All rights reserved. +// This code is governed by the BSD license found in the LICENSE file. + +/*--- +esid: sec-asyncgenerator-prototype-return +description: > + "return" returns a promise for an IteratorResult object +info: | + AsyncGenerator.prototype.return ( value ) + 1. Let generator be the this value. + 2. Let completion be Completion{[[Type]]: return, [[Value]]: value, + [[Target]]: empty}. + 3. Return ! AsyncGeneratorEnqueue(generator, completion). + + AsyncGeneratorEnqueue ( generator, completion ) + ... + 4. Let queue be generator.[[AsyncGeneratorQueue]]. + 5. Let request be AsyncGeneratorRequest{[[Completion]]: completion, + [[Capability]]: promiseCapability}. + 6. Append request to the end of queue. + ... + + AsyncGeneratorResolve ( generator, value, done ) + 1. Assert: generator is an AsyncGenerator instance. + 2. Let queue be generator.[[AsyncGeneratorQueue]]. + 3. Assert: queue is not an empty List. + 4. Remove the first element from queue and let next be the value of that element. + 5. Let promiseCapability be next.[[Capability]]. + 6. Let iteratorResult be ! CreateIterResultObject(value, done). + 7. Perform ! Call(promiseCapability.[[Resolve]], undefined, « iteratorResult »). + ... + +flags: [async] +features: [async-iteration] +---*/ + +async function* g() {} + +g().return().then(function (result) { + assert( + Object.prototype.hasOwnProperty.call(result, 'value'), 'Has "own" property `value`' + ); + assert( + Object.prototype.hasOwnProperty.call(result, 'done'), 'Has "own" property `done`' + ); + assert.sameValue(Object.getPrototypeOf(result), Object.prototype); +}).then($DONE, $DONE) |