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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 19:33:14 +0000 |
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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/clobber-symbol.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/clobber-symbol.js | 50 |
1 files changed, 50 insertions, 0 deletions
diff --git a/js/src/tests/non262/AsyncIterator/prototype/clobber-symbol.js b/js/src/tests/non262/AsyncIterator/prototype/clobber-symbol.js new file mode 100644 index 0000000000..5db6b2276f --- /dev/null +++ b/js/src/tests/non262/AsyncIterator/prototype/clobber-symbol.js @@ -0,0 +1,50 @@ +// |reftest| skip-if(!this.hasOwnProperty('AsyncIterator')) +// +// + +/*--- +esid: pending +description: %AsyncIterator.prototype% methods work even if the global Symbol has been clobbered. +info: > + Iterator Helpers proposal 2.1.6 +features: [iterator-helpers, Symbol.asyncIterator] +---*/ + +Symbol = undefined; +assertThrowsInstanceOf(() => Symbol.asyncIterator, TypeError); + +async function* gen(value) { + yield value; +} + +const lazyMethods = [ + 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), +]; + +const strictMethods = [ + iter => iter.reduce((_, x) => x, undefined), + iter => iter.toArray(), + iter => iter.forEach(() => undefined), + iter => iter.some(x => true), + iter => iter.every(x => true), + iter => iter.find(x => true), +]; + +(async () => { + for (const method of lazyMethods) { + const {value} = await method(gen('value')).next(); + assertEq(Array.isArray(value) ? value[1] : value, 'value'); + } + + for (const method of strictMethods) { + await method(gen('value')); + } +})(); + +if (typeof reportCompare == 'function') + reportCompare(0, 0); |