mirror of https://github.com/tc39/test262.git
76 lines
1.6 KiB
JavaScript
76 lines
1.6 KiB
JavaScript
// 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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esid: sec-weakmap-iterable
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description: >
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Closes the iterator object after not object error on next item.
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info: |
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WeakMap ( [ iterable ] )
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...
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9. Repeat
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...
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d. Let nextItem be IteratorValue(next).
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e. ReturnIfAbrupt(nextItem).
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f. If Type(nextItem) is not Object,
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i. Let error be Completion{[[type]]: throw, [[value]]: a newly created
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TypeError object, [[target]]:empty}.
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ii. Return IteratorClose(iter, error).
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features:
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- Symbol
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- Symbol.iterator
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---*/
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var count = 0;
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var nextItem;
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var iterable = {};
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iterable[Symbol.iterator] = function() {
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return {
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next: function() {
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return {
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value: nextItem,
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done: false
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};
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},
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return: function() {
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count += 1;
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}
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};
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};
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nextItem = 1;
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assert.throws(TypeError, function() {
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new WeakMap(iterable);
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});
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assert.sameValue(count, 1);
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nextItem = true;
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assert.throws(TypeError, function() {
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new WeakMap(iterable);
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});
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assert.sameValue(count, 2);
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nextItem = '';
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assert.throws(TypeError, function() {
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new WeakMap(iterable);
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});
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assert.sameValue(count, 3);
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nextItem = null;
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assert.throws(TypeError, function() {
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new WeakMap(iterable);
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});
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assert.sameValue(count, 4);
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nextItem = undefined;
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assert.throws(TypeError, function() {
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new WeakMap(iterable);
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});
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assert.sameValue(count, 5);
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nextItem = Symbol.for('a');
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assert.throws(TypeError, function() {
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new WeakMap(iterable);
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});
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assert.sameValue(count, 6);
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