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Diffstat (limited to 'js/src/tests/test262/built-ins/Set/set-iterator-close-after-add-failure.js')
-rw-r--r-- | js/src/tests/test262/built-ins/Set/set-iterator-close-after-add-failure.js | 50 |
1 files changed, 50 insertions, 0 deletions
diff --git a/js/src/tests/test262/built-ins/Set/set-iterator-close-after-add-failure.js b/js/src/tests/test262/built-ins/Set/set-iterator-close-after-add-failure.js new file mode 100644 index 0000000000..4ec88ecb78 --- /dev/null +++ b/js/src/tests/test262/built-ins/Set/set-iterator-close-after-add-failure.js @@ -0,0 +1,50 @@ +// Copyright (C) 2015 the V8 project authors. All rights reserved. +// This code is governed by the BSD license found in the LICENSE file. +/*--- +es6id: 23.2.1.1 +description: > + Set ( [ iterable ] ) + + When the Set function is called with optional argument iterable the following steps are taken: + + ... + 9. Repeat + a. Let next be IteratorStep(iter). + b. ReturnIfAbrupt(next). + c. If next is false, return set. + d. Let nextValue be IteratorValue(next). + e. ReturnIfAbrupt(nextValue). + f. Let status be Call(adder, set, «nextValue.[[value]]»). + g. If status is an abrupt completion, return IteratorClose(iter, status). + +features: [Symbol.iterator] +---*/ + +var count = 0; +var iterable = {}; +iterable[Symbol.iterator] = function() { + return { + next: function() { + return { + value: null, + done: false + }; + }, + return: function() { + count += 1; + } + }; +}; +Set.prototype.add = function() { + throw new Error(); +} + +assert.throws(Error, function() { + new Set(iterable); +}); + +assert.sameValue( + count, 1, "The iterator is closed when `Set.prototype.add` throws an error." +); + +reportCompare(0, 0); |