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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-19 00:47:55 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-19 00:47:55 +0000 |
commit | 26a029d407be480d791972afb5975cf62c9360a6 (patch) | |
tree | f435a8308119effd964b339f76abb83a57c29483 /js/src/tests/non262/AsyncIterator/prototype/flatMap/inner-empty-iterable.js | |
parent | Initial commit. (diff) | |
download | firefox-26a029d407be480d791972afb5975cf62c9360a6.tar.xz firefox-26a029d407be480d791972afb5975cf62c9360a6.zip |
Adding upstream version 124.0.1.upstream/124.0.1
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'js/src/tests/non262/AsyncIterator/prototype/flatMap/inner-empty-iterable.js')
-rw-r--r-- | js/src/tests/non262/AsyncIterator/prototype/flatMap/inner-empty-iterable.js | 44 |
1 files changed, 44 insertions, 0 deletions
diff --git a/js/src/tests/non262/AsyncIterator/prototype/flatMap/inner-empty-iterable.js b/js/src/tests/non262/AsyncIterator/prototype/flatMap/inner-empty-iterable.js new file mode 100644 index 0000000000..3da588f444 --- /dev/null +++ b/js/src/tests/non262/AsyncIterator/prototype/flatMap/inner-empty-iterable.js @@ -0,0 +1,44 @@ +// |reftest| skip-if(!this.hasOwnProperty('AsyncIterator')) + +// +// +/*--- +esid: pending +description: %AsyncIterator.prototype%.flatMap skips empty inner iterables. +info: > + Iterator Helpers proposal 2.1.6.7 + 1. Repeat, + ... + k. Repeat, while innerAlive is true, + ... + v. Let innerComplete be IteratorComplete(innerNext). + ... + vii. If innerComplete is true, set innerAlive to false. +features: [iterator-helpers] +---*/ + +async function* gen(values) { + yield* values; +} + +(async () => { + let iter = gen([0, 1, 2, 3]).flatMap(x => x % 2 ? gen([]) : gen([x])); + + for (const expected of [0, 2]) { + const result = await iter.next(); + assertEq(result.value, expected); + assertEq(result.done, false); + } + + let result = await iter.next(); + assertEq(result.value, undefined); + assertEq(result.done, true); + + iter = gen([0, 1, 2, 3]).flatMap(x => gen([])); + result = await iter.next(); + assertEq(result.value, undefined); + assertEq(result.done, true); +})(); + +if (typeof reportCompare == 'function') + reportCompare(0, 0); |