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Copy pathiterator.test.ts
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28 lines (21 loc) · 840 Bytes
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/*---------------------------------------------------------------------------------------------
* Copyright (c) Microsoft Corporation. All rights reserved.
* Licensed under the MIT License. See License.txt in the project root for license information.
*--------------------------------------------------------------------------------------------*/
import * as assert from 'assert';
import { Iterable } from 'vs/base/common/iterator';
suite('Iterable', function () {
const customIterable = new class {
*[Symbol.iterator]() {
yield 'one';
yield 'two';
yield 'three';
}
};
test('first', function () {
assert.equal(Iterable.first([]), undefined);
assert.equal(Iterable.first([1]), 1);
assert.equal(Iterable.first(customIterable), 'one');
assert.equal(Iterable.first(customIterable), 'one'); // fresh
});
});