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Diffstat (limited to 'js/src/tests/test262/built-ins/AsyncGeneratorPrototype/throw/throw-suspendedYield-promise.js')
-rw-r--r-- | js/src/tests/test262/built-ins/AsyncGeneratorPrototype/throw/throw-suspendedYield-promise.js | 54 |
1 files changed, 54 insertions, 0 deletions
diff --git a/js/src/tests/test262/built-ins/AsyncGeneratorPrototype/throw/throw-suspendedYield-promise.js b/js/src/tests/test262/built-ins/AsyncGeneratorPrototype/throw/throw-suspendedYield-promise.js new file mode 100644 index 0000000000..20871194f9 --- /dev/null +++ b/js/src/tests/test262/built-ins/AsyncGeneratorPrototype/throw/throw-suspendedYield-promise.js @@ -0,0 +1,54 @@ +// |reftest| async +// Copyright 2017 the V8 project authors. All rights reserved. +// This code is governed by the BSD license found in the LICENSE file. + +/*--- +author: Caitlin Potter <caitp@igalia.com> +esid: sec-asyncgenerator-prototype-throw +description: > + Generator is not resumed after a throw completion with a promise arg +info: | + AsyncGenerator.prototype.throw ( exception ) + 1. Let generator be the this value. + 2. Let completion be Completion{[[Type]]: throw, [[Value]]: exception, [[Target]]: empty}. + 3. Return ! AsyncGeneratorEnqueue(generator, completion). + + AsyncGeneratorEnqueue ( generator, completion ) + ... + 8. If state is not "executing", then + a. Perform ! AsyncGeneratorResumeNext(generator). + ... + + AsyncGeneratorResumeNext: + If completion.[[Type]] is throw, and generator.[[AsyncGeneratorState]] is + "suspendedYield", generator is resumed and immediately and + closes the generator and returns completion. + + AsyncGeneratorReject will not unwrap Promise values +flags: [async] +features: [async-iteration] +---*/ + +var g = async function*() { + yield 1; + throw new Test262Error('Generator must not be resumed.'); +}; + +var it = g(); +var promise = new Promise(function() {}); + +it.next().then(function(ret) { + assert.sameValue(ret.value, 1, 'Initial yield'); + assert.sameValue(ret.done, false, 'Initial yield'); + + it.throw(promise).then($DONE, function(err) { + assert.sameValue(err, promise, 'AsyncGeneratorReject(generator, resultValue)'); + + it.next().then(function(ret) { + assert.sameValue(ret.value, undefined, 'Generator is closed'); + assert.sameValue(ret.done, true, 'Generator is closed'); + }).then($DONE, $DONE); + + }).catch($DONE); + +}).catch($DONE); |