mirror of https://github.com/tc39/test262.git
42 lines
989 B
JavaScript
42 lines
989 B
JavaScript
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// Copyright (C) 2015 the V8 project authors. All rights reserved.
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// This code is governed by the BSD license found in the LICENSE file.
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/*---
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es6id: 22.1.2.1
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description: Error invoking map function (traversed via iterator)
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info: >
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[...]
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6. If usingIterator is not undefined, then
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[...]
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g. Repeat
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[...]
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vii. If mapping is true, then
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1. Let mappedValue be Call(mapfn, T, «nextValue, k»).
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2. If mappedValue is an abrupt completion, return
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IteratorClose(iterator, mappedValue).
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features: [Symbol.iterator]
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---*/
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var closeCount = 0;
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var mapFn = function() {
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throw new Test262Error();
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};
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var items = {};
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items[Symbol.iterator] = function() {
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return {
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return: function() {
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closeCount += 1;
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},
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next: function() {
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return {
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done: false
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};
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}
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};
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};
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assert.throws(Test262Error, function() {
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Array.from(items, mapFn);
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});
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assert.sameValue(closeCount, 1);
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