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Diffstat (limited to '')
-rw-r--r-- | js/src/tests/non262/Iterator/from/wrap-return-closes-iterator.js | 33 |
1 files changed, 33 insertions, 0 deletions
diff --git a/js/src/tests/non262/Iterator/from/wrap-return-closes-iterator.js b/js/src/tests/non262/Iterator/from/wrap-return-closes-iterator.js new file mode 100644 index 0000000000..22518871f3 --- /dev/null +++ b/js/src/tests/non262/Iterator/from/wrap-return-closes-iterator.js @@ -0,0 +1,33 @@ +// |reftest| skip-if(!this.hasOwnProperty('Iterator')) -- Iterator is not enabled unconditionally +class Iter { + next() { + if (this.closed) + return { done: true, value: undefined }; + return { done: false, value: 0 }; + } + + return(value) { + this.closed = true; + return { done: true, value }; + } +} + +const iter = new Iter(); +const wrap = Iterator.from(iter); +assertEq(iter.closed, undefined); + +let result = wrap.next(); +assertEq(result.done, false); +assertEq(result.value, 0); + +result = wrap.return(1); +assertEq(result.done, true); +assertEq(result.value, 1); + +assertEq(iter.closed, true); +result = wrap.next(); +assertEq(result.done, true); +assertEq(result.value, undefined); + +if (typeof reportCompare === 'function') + reportCompare(0, 0); |