diff options
Diffstat (limited to 'js/src/tests/non262/Iterator/prototype/lazy-methods-iterator-closed-on-yield-throws.js')
-rw-r--r-- | js/src/tests/non262/Iterator/prototype/lazy-methods-iterator-closed-on-yield-throws.js | 43 |
1 files changed, 43 insertions, 0 deletions
diff --git a/js/src/tests/non262/Iterator/prototype/lazy-methods-iterator-closed-on-yield-throws.js b/js/src/tests/non262/Iterator/prototype/lazy-methods-iterator-closed-on-yield-throws.js new file mode 100644 index 0000000000..b878a80c7b --- /dev/null +++ b/js/src/tests/non262/Iterator/prototype/lazy-methods-iterator-closed-on-yield-throws.js @@ -0,0 +1,43 @@ +// |reftest| skip-if(!this.hasOwnProperty('Iterator')) + +// +// +/*--- +esid: pending +description: Lazy %Iterator.prototype% methods close the iterator if `yield` throws. +info: > + Iterator Helpers proposal 2.1.5 +features: [iterator-helpers] +---*/ + +class TestIterator extends Iterator { + next() { + return {done: false, value: 1}; + } + + closed = false; + return() { + this.closed = true; + return {done: true}; + } +} + +const methods = [ + iter => iter.map(x => x), + iter => iter.filter(x => true), + iter => iter.take(1), + iter => iter.drop(0), + iter => iter.flatMap(x => [x]), +]; + +for (const method of methods) { + const iterator = new TestIterator(); + assertEq(iterator.closed, false); + const iteratorHelper = method(iterator); + iteratorHelper.next(); + iteratorHelper.return(); + assertEq(iterator.closed, true); +} + +if (typeof reportCompare == 'function') + reportCompare(0, 0); |