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Diffstat (limited to 'js/src/tests/non262/AsyncIterator/prototype/flatMap/throw-when-inner-not-iterable.js')
-rw-r--r-- | js/src/tests/non262/AsyncIterator/prototype/flatMap/throw-when-inner-not-iterable.js | 71 |
1 files changed, 71 insertions, 0 deletions
diff --git a/js/src/tests/non262/AsyncIterator/prototype/flatMap/throw-when-inner-not-iterable.js b/js/src/tests/non262/AsyncIterator/prototype/flatMap/throw-when-inner-not-iterable.js new file mode 100644 index 0000000000..e854a8c8ae --- /dev/null +++ b/js/src/tests/non262/AsyncIterator/prototype/flatMap/throw-when-inner-not-iterable.js @@ -0,0 +1,71 @@ +// |reftest| skip-if(!this.hasOwnProperty('AsyncIterator')) + +// +// +/*--- +esid: pending +description: %AsyncIterator.prototype%.flatMap closes the iterator and throws when mapped isn't iterable. +info: > + Iterator Helpers proposal 2.1.6.7 + 1. Repeat, + ... + h. Let innerIterator be GetIterator(mapped, async). + i. IfAbruptCloseAsyncIterator(innerIterator, iterated). +features: [iterator-helpers] +---*/ + +class NotIterable { + async next() { + return {done: true}; + } +} + +class InvalidIterable { + [Symbol.asyncIterator]() { + return {}; + } +} + +class TestIterator extends AsyncIterator { + async next() { + return {done: false, value: 0}; + } + + closed = false; + async return(value) { + this.closed = true; + return {done: true, value}; + } +} + +const nonIterables = [ + new NotIterable(), + new InvalidIterable(), + undefined, + null, + 0, + false, + Symbol(''), + 0n, + {}, +]; + +(async () => { + for (const value of nonIterables) { + const iter = new TestIterator(); + const mapped = iter.flatMap(x => value); + + assertEq(iter.closed, false); + console.log("here!"); + try { + await mapped.next(); + assertEq(true, false, 'Expected reject'); + } catch (exc) { + assertEq(exc instanceof TypeError, true); + } + assertEq(iter.closed, true); + } +})(); + +if (typeof reportCompare == 'function') + reportCompare(0, 0); |