diff options
author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 19:33:14 +0000 |
---|---|---|
committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 19:33:14 +0000 |
commit | 36d22d82aa202bb199967e9512281e9a53db42c9 (patch) | |
tree | 105e8c98ddea1c1e4784a60a5a6410fa416be2de /js/src/tests/non262/AsyncIterator/prototype/lazy-methods-throw-closes-iterator-before-next.js | |
parent | Initial commit. (diff) | |
download | firefox-esr-36d22d82aa202bb199967e9512281e9a53db42c9.tar.xz firefox-esr-36d22d82aa202bb199967e9512281e9a53db42c9.zip |
Adding upstream version 115.7.0esr.upstream/115.7.0esrupstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to '')
-rw-r--r-- | js/src/tests/non262/AsyncIterator/prototype/lazy-methods-throw-closes-iterator-before-next.js | 58 |
1 files changed, 58 insertions, 0 deletions
diff --git a/js/src/tests/non262/AsyncIterator/prototype/lazy-methods-throw-closes-iterator-before-next.js b/js/src/tests/non262/AsyncIterator/prototype/lazy-methods-throw-closes-iterator-before-next.js new file mode 100644 index 0000000000..4e9d9f6421 --- /dev/null +++ b/js/src/tests/non262/AsyncIterator/prototype/lazy-methods-throw-closes-iterator-before-next.js @@ -0,0 +1,58 @@ +// |reftest| skip-if(!this.hasOwnProperty('AsyncIterator')) + +// +// +/*--- +esid: pending +description: Calling `throw` on a lazy %AsyncIterator.prototype% method closes the source iterator. +info: > + Iterator Helpers proposal 2.1.6 +features: [iterator-helpers] +---*/ + +class TestError extends Error {} + +class TestIterator extends AsyncIterator { + async next() { + return {done: false, value: 1}; + } + + closed = false; + async return(value) { + this.closed = true; + return {done: true, value}; + } +} + +async function* gen(x) { yield x; } + +const methods = [ + iter => iter.map(x => x), + iter => iter.filter(x => x), + iter => iter.take(1), + iter => iter.drop(0), + iter => iter.asIndexedPairs(), + iter => iter.flatMap(gen), +]; + +for (const method of methods) { + const iter = new TestIterator(); + const iterHelper = method(iter); + + assertEq(iter.closed, false); + iterHelper.throw(new TestError()).then( + _ => assertEq(true, false, 'Expected reject.'), + err => { + assertEq(err instanceof TestError, true); + assertEq(iter.closed, true); + + iterHelper.next().then(({done, value}) => { + assertEq(done, true); + assertEq(value, undefined); + }); + }, + ); +} + +if (typeof reportCompare == 'function') + reportCompare(0, 0); |