mirror of
https://github.com/shaka-project/shaka-player.git
synced 2026-06-26 17:46:26 +03:00
Jacob Trimble
2c922000a1
Now it will correctly remove duplicate NaN entries. This also updates it to use ES6 and uses indexOf instead of an explicit inner loop. Change-Id: I18e747bd882515c46c9a1c410696321ca4d3cc0e
59 lines
2.0 KiB
JavaScript
59 lines
2.0 KiB
JavaScript
/**
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* @license
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* Copyright 2016 Google Inc.
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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describe('ArrayUtils', function() {
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const ArrayUtils = shaka.util.ArrayUtils;
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describe('removeDuplicates', function() {
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it('will remove duplicate elements', function() {
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let arr = [1, 2, 2, 5, 6, 3, 1, 2];
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expect(ArrayUtils.removeDuplicates(arr)).toEqual([1, 2, 5, 6, 3]);
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});
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it('removes duplicate NaN', function() {
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let arr = [NaN, 1, NaN, 2, NaN, NaN];
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expect(ArrayUtils.removeDuplicates(arr)).toEqual([NaN, 1, 2]);
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});
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it('does nothing if no duplicates', function() {
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let arr = [1, 2, 3, 6, 5, 4];
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expect(ArrayUtils.removeDuplicates(arr)).toEqual(arr);
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});
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it('accepts an optional comparator', function() {
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let arr = ['aaa', 'abc', 'bat', 'car', 'cat'];
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let comparator = function(a, b) { return a[0] === b[0]; };
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expect(ArrayUtils.removeDuplicates(arr, comparator))
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.toEqual(['aaa', 'bat', 'car']);
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});
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});
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describe('indexOf', function() {
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it('will find a matching element', function() {
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let arr = ['aaa', 'bbb', 'ccc'];
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let comparator = function(a, b) { return a[0] === b[0]; };
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expect(ArrayUtils.indexOf(arr, 'bat', comparator)).toBe(1);
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});
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it('will return -1 if not found', function() {
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let arr = ['aaa', 'bbb', 'ccc'];
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let comparator = function(a, b) { return a[0] === b[0]; };
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expect(ArrayUtils.indexOf(arr, 'zoo', comparator)).toBe(-1);
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});
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});
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});
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