test262/test/built-ins/Promise/exception-after-resolve-in-thenable-job.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

38 lines
1.0 KiB
JavaScript
Executable File

// Copyright (C) 2015 André Bargull. All rights reserved.
// This code is governed by the BSD license found in the LICENSE file.
/*---
es6id: 25.4.2.2
description: >
Already resolved promise is not rejected when then() function throws an exception.
info: >
PromiseResolveThenableJob ( promiseToResolve, thenable, then )
1. Let resolvingFunctions be CreateResolvingFunctions(promiseToResolve).
2. Let thenCallResult be Call(then, thenable, «resolvingFunctions.[[Resolve]], resolvingFunctions.[[Reject]]»).
3. If thenCallResult is an abrupt completion,
a. Let status be Call(resolvingFunctions.[[Reject]], undefined, «thenCallResult.[[value]]»)
b. NextJob Completion(status).
...
flags: [async]
---*/
var thenable = {
then: function(resolve) {
resolve();
}
};
var thenableWithError = {
then: function(resolve) {
resolve(thenable);
throw new Error("ignored exception");
}
};
function executor(resolve, reject) {
resolve(thenableWithError);
}
new Promise(executor).then($DONE, $DONE);