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23d566209a
For asynchronous tests, the contract between test file and test runner
is implicit: runners are expected to inspect the source code for
references to a global `$DONE` identifier.
Promote a more explicit contract between test file and test runner by
introducing a new frontmatter "tag", `async`. This brings asynchronous
test configuration in-line with other configuration mechanisms and also
provides a more natural means of test filtering.
The modifications to test files was made programatically using the
`grep` and `sed` utilities:
$ grep "\$DONE" test/ -r --files-with-match --null | \
xargs -0 sed -i 's/^\(flags:\s*\)\[/\1[async, /g'
$ grep "\$DONE" test/ -rl --null | \
xargs -0 grep -E '^flags:' --files-without-match --null | \
xargs -0 sed -i 's/^---\*\//flags: [async]\n---*\//'
42 lines
1.2 KiB
JavaScript
42 lines
1.2 KiB
JavaScript
// Copyright (C) 2016 the V8 project authors. All rights reserved.
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// This code is governed by the BSD license found in the LICENSE file.
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/*---
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description: >
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Resolving with a thenable object value from within the executor function
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es6id: 25.4.3.1
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info: >
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[...]
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8. Let resolvingFunctions be CreateResolvingFunctions(promise).
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9. Let completion be Call(executor, undefined,
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«resolvingFunctions.[[Resolve]], resolvingFunctions.[[Reject]]»).
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25.4.1.3.2 Promise Resolve Functions
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[...]
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8. Let then be Get(resolution, "then").
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9. If then is an abrupt completion, then
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[...]
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10. Let thenAction be then.[[value]].
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11. If IsCallable(thenAction) is false, then
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[...]
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12. Perform EnqueueJob ("PromiseJobs", PromiseResolveThenableJob,
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«promise, resolution, thenAction»)
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flags: [async]
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---*/
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var value = {};
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var thenable = new Promise(function(resolve) { resolve(value); });
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var promise = new Promise(function(resolve) {
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resolve(thenable);
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});
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promise.then(function(val) {
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if (val !== value) {
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$DONE('The promise should be fulfilled with the provided value.');
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return;
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}
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$DONE();
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}, function() {
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$DONE('The promise should not be rejected.');
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});
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