51 lines
1.3 KiB
JavaScript
51 lines
1.3 KiB
JavaScript
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// Copyright 2019 the V8 project authors. All rights reserved.
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file.
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let lf = new Intl.ListFormat("en");
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// Test normal array
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assertDoesNotThrow(() => lf.format(['a','b','c']));
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assertThrows("lf.format(['a','b',3])", TypeError, "Iterable yielded 3 which is not a string");
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// Test sparse array
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let sparse = ['a','b'];
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sparse[10] = 'c';
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assertThrows("lf.format(sparse)", TypeError, "Iterable yielded undefined which is not a string");
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// Test iterable of all String
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let iterable_of_strings = {
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[Symbol.iterator]() {
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return this;
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},
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count: 0,
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next() {
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if (this.count++ < 4) {
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return {done: false, value: String(this.count)};
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}
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return {done:true}
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}
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};
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assertDoesNotThrow(() => lf.format(iterable_of_strings));
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// Test iterable of none String throw TypeError
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let iterable_of_strings_and_number = {
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[Symbol.iterator]() {
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return this;
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},
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count: 0,
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next() {
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this.count++;
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if (this.count == 3) {
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return {done:false, value: 3};
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}
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if (this.count < 5) {
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return {done: false, value: String(this.count)};
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}
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return {done:true}
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}
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};
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assertThrows("lf.format(iterable_of_strings_and_number)",
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TypeError, "Iterable yielded 3 which is not a string");
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assertEquals(3, iterable_of_strings_and_number.count);
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