diff options
Diffstat (limited to 'js/src/tests/non262/Iterator/prototype/drop/drop-more-than-available.js')
-rw-r--r-- | js/src/tests/non262/Iterator/prototype/drop/drop-more-than-available.js | 37 |
1 files changed, 37 insertions, 0 deletions
diff --git a/js/src/tests/non262/Iterator/prototype/drop/drop-more-than-available.js b/js/src/tests/non262/Iterator/prototype/drop/drop-more-than-available.js new file mode 100644 index 0000000000..230ebb8faf --- /dev/null +++ b/js/src/tests/non262/Iterator/prototype/drop/drop-more-than-available.js @@ -0,0 +1,37 @@ +// |reftest| skip-if(!this.hasOwnProperty('Iterator')) + +// +// +/*--- +esid: pending +description: %Iterator.prototype%.drop returns if the iterator is done. +info: > + Iterator Helpers proposal 2.1.5.5 + 1. Repeat, while remaining > 0, + ... + b. Let next be ? IteratorStep(iterated). + c. If next is false, return undefined. +features: [iterator-helpers] +---*/ + +let iter = [1, 2].values().drop(3); +let result = iter.next(); +assertEq(result.value, undefined); +assertEq(result.done, true); + +class TestIterator extends Iterator { + counter = 0; + next() { + return {done: ++this.counter >= 2, value: undefined}; + } +} + +iter = new TestIterator(); +let dropped = iter.drop(10); +result = dropped.next(); +assertEq(result.value, undefined); +assertEq(result.done, true); +assertEq(iter.counter, 2); + +if (typeof reportCompare == 'function') + reportCompare(0, 0); |