test262/test/built-ins/Promise/reject-via-fn-immed.js
Mike Pennisi 23d566209a Make asynchronous test configuration explicit
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---*\//'
2016-02-12 13:03:19 -05:00

35 lines
940 B
JavaScript

// Copyright (C) 2016 the V8 project authors. All rights reserved.
// This code is governed by the BSD license found in the LICENSE file.
/*---
description: Rejecting through immediate invocation of the provided resolving function
es6id: 25.4.3.1
info: >
[...]
9. Let completion be Call(executor, undefined,
«resolvingFunctions.[[Resolve]], resolvingFunctions.[[Reject]]»).
10. If completion is an abrupt completion, then
[...]
11. Return promise.
25.4.1.3.1 Promise Reject Functions
[...]
6. Return RejectPromise(promise, reason).
flags: [async]
---*/
var thenable = new Promise(function() {});
var p = new Promise(function(_, reject) {
reject(thenable);
});
p.then(function() {
$DONE('The promise should not be fulfilled.');
}, function(x) {
if (x !== thenable) {
$DONE('The promise should be rejected with the resolution value.');
return;
}
$DONE();
});