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Diffstat (limited to 'js/src/tests/test262/built-ins/Object/fromEntries/iterator-not-closed-for-throwing-next.js')
-rw-r--r-- | js/src/tests/test262/built-ins/Object/fromEntries/iterator-not-closed-for-throwing-next.js | 54 |
1 files changed, 54 insertions, 0 deletions
diff --git a/js/src/tests/test262/built-ins/Object/fromEntries/iterator-not-closed-for-throwing-next.js b/js/src/tests/test262/built-ins/Object/fromEntries/iterator-not-closed-for-throwing-next.js new file mode 100644 index 0000000000..386e4afc7c --- /dev/null +++ b/js/src/tests/test262/built-ins/Object/fromEntries/iterator-not-closed-for-throwing-next.js @@ -0,0 +1,54 @@ +// Copyright (C) 2018 Kevin Gibbons. All rights reserved. +// This code is governed by the BSD license found in the LICENSE file. + +/*--- +esid: sec-object.fromentries +description: Does not close iterators with a `next` method which throws. +info: | + Object.fromEntries ( iterable ) + + ... + 4. Let stepsDefine be the algorithm steps defined in CreateDataPropertyOnObject Functions. + 5. Let adder be CreateBuiltinFunction(stepsDefine, « »). + 6. Return ? AddEntriesFromIterable(obj, iterable, adder). + + AddEntriesFromIterable ( target, iterable, adder ) + + ... + 4. Repeat, + a. Let next be ? IteratorStep(iteratorRecord). + + + IteratorStep ( iteratorRecord ) + + 1. Let result be ? IteratorNext(iteratorRecord). + + + IteratorNext ( iteratorRecord [ , value ] ) + + ... + 3. If Type(result) is not Object, throw a TypeError exception. + +features: [Symbol.iterator, Object.fromEntries] +---*/ + +function DummyError() {} + +var iterable = { + [Symbol.iterator]: function() { + return { + next: function() { + throw new DummyError(); + }, + return: function() { + throw new Test262Error('should not call return'); + }, + }; + }, +}; + +assert.throws(DummyError, function() { + Object.fromEntries(iterable); +}); + +reportCompare(0, 0); |