content/browser/resources/media/disjoint_range_set_test.html

   1 <!doctype html>
   2 <html>
   3 <!--
   4 Copyright (c) 2011 The Chromium Authors. All rights reserved.
   5 Use of this source code is governed by a BSD-style license that can be
   6 found in the LICENSE file.
   7 -->
   8   <head>
   9     <title></title>
  10     <script src="https://cdn.rawgit.com/google/closure-library/master/closure/goog/base.js"></script>
  11     <script src="../../../../ui/webui/resources/js/cr.js"></script>
  12     <script src="disjoint_range_set.js"></script>
  13     <script>
  14       goog.require('goog.testing.jsunit');
  15     </script>
  16   </head>
  17   <body>
  18     <script>
  19
  20       var range;
  21
  22       function assertRangeEquals(ranges) {
  23         assertArrayEquals(
  24         ranges, range.map(function(start, end) { return [start, end]; }));
  25       };
  26
  27       function setUp() {
  28         range = new media.DisjointRangeSet;
  29       };
  30
  31       function testAdd() {
  32         range.add(1, 6);
  33         assertRangeEquals([[1, 6]]);
  34         range.add(-5, -3);
  35         assertRangeEquals([[-5, -3], [1, 6]]);
  36       };
  37
  38       function testAddAdjacent() {
  39         range.add(3, 6);
  40         assertRangeEquals([[3, 6]]);
  41         range.add(1, 2);
  42         assertRangeEquals([[1, 6]]);
  43         range.add(7, 9);
  44         assertRangeEquals([[1, 9]]);
  45       };
  46
  47       function testAddNotQuiteAdjacent() {
  48         range.add(3, 6);
  49         assertRangeEquals([[3, 6]]);
  50         range.add(0, 1);
  51         assertRangeEquals([[0, 1], [3, 6]]);
  52         range.add(8, 9);
  53         assertRangeEquals([[0, 1], [3, 6], [8, 9]]);
  54       };
  55
  56       function testAddOverlapping() {
  57         range.add(1, 6);
  58         assertRangeEquals([[1, 6]]);
  59         range.add(5, 8);
  60         assertRangeEquals([[1, 8]]);
  61         range.add(0, 1);
  62         assertRangeEquals([[0, 8]]);
  63       };
  64
  65       function testMax() {
  66         assertNull(range.max());
  67         range.add(1, 6);
  68         assertEquals(range.max(), 6);
  69         range.add(3, 8);
  70         assertEquals(range.max(), 8);
  71         range.remove(2, 3);
  72         assertEquals(range.max(), 8);
  73         range.remove(4, 10);
  74         assertEquals(range.max(), 1);
  75         range.remove(1, 1);
  76         assertNull(range.max());
  77       };
  78
  79       function testRemove() {
  80         range.add(1, 20);
  81         assertRangeEquals([[1, 20]]);
  82         range.remove(0, 3);
  83         assertRangeEquals([[4, 20]]);
  84         range.remove(18, 20);
  85         assertRangeEquals([[4, 17]]);
  86         range.remove(5, 16);
  87         assertRangeEquals([[4, 4], [17, 17]]);
  88       };
  89
  90       function testStartsEmpty() {
  91         assertRangeEquals([]);
  92       };
  93
  94     </script>
  95   </body>
  96 </html>