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Diffstat (limited to 'js/src/tests/non262/Iterator/prototype/lazy-methods-pass-through-lastValue.js')
-rw-r--r-- | js/src/tests/non262/Iterator/prototype/lazy-methods-pass-through-lastValue.js | 28 |
1 files changed, 28 insertions, 0 deletions
diff --git a/js/src/tests/non262/Iterator/prototype/lazy-methods-pass-through-lastValue.js b/js/src/tests/non262/Iterator/prototype/lazy-methods-pass-through-lastValue.js new file mode 100644 index 0000000000..173d7bb672 --- /dev/null +++ b/js/src/tests/non262/Iterator/prototype/lazy-methods-pass-through-lastValue.js @@ -0,0 +1,28 @@ +// |reftest| skip-if(!this.hasOwnProperty('Iterator')) + +class TestIterator extends Iterator { + next(value = "next value") { + assertEq(arguments.length, 0); + return {done: false, value}; + } +} + +const methods = [ + iter => iter.map(x => x), + iter => iter.filter(x => true), + iter => iter.take(2), + iter => iter.drop(0), +]; + +for (const method of methods) { + const iterator = new TestIterator(); + const iteratorHelper = method(iterator); + iteratorHelper.next(); + let result = iteratorHelper.next('last value'); + assertEq(result.done, false); + assertEq(result.value, 'next value'); +} + +if (typeof reportCompare == 'function') + reportCompare(0, 0); + |