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| 1 // Copyright (c) 2014 The Chromium Authors. All rights reserved. |
| 2 // Use of this source code is governed by a BSD-style license that can be |
| 3 // found in the LICENSE file. |
| 4 |
| 5 #include "media/base/text_ranges.h" |
| 6 |
| 7 #include "base/time/time.h" |
| 8 #include "testing/gtest/include/gtest/gtest.h" |
| 9 |
| 10 namespace media { |
| 11 |
| 12 class TextRangesTest : public ::testing::Test { |
| 13 protected: |
| 14 bool AddCue(int seconds) { |
| 15 return ranges_.AddCue(base::TimeDelta::FromSeconds(seconds)); |
| 16 } |
| 17 |
| 18 void Reset() { |
| 19 ranges_.Reset(); |
| 20 } |
| 21 |
| 22 size_t RangeCount() { |
| 23 return ranges_.RangeCountForTesting(); |
| 24 } |
| 25 |
| 26 TextRanges ranges_; |
| 27 }; |
| 28 |
| 29 TEST_F(TextRangesTest, TestEmptyRanges) { |
| 30 // Create a new active range, with t=5. |
| 31 EXPECT_TRUE(AddCue(5)); |
| 32 |
| 33 // Create a new active range, with t=2. |
| 34 Reset(); |
| 35 EXPECT_TRUE(AddCue(2)); |
| 36 |
| 37 // Create a new active range, with t=8. |
| 38 Reset(); |
| 39 EXPECT_TRUE(AddCue(8)); |
| 40 |
| 41 Reset(); |
| 42 |
| 43 // Make range [2, 2] active. |
| 44 EXPECT_FALSE(AddCue(2)); |
| 45 EXPECT_EQ(RangeCount(), 3U); |
| 46 |
| 47 // Coalesce first two ranges: [2, 5]. |
| 48 EXPECT_FALSE(AddCue(5)); |
| 49 EXPECT_EQ(RangeCount(), 2U); |
| 50 |
| 51 // Coalesce first two ranges: [2, 8]. |
| 52 EXPECT_FALSE(AddCue(8)); |
| 53 EXPECT_EQ(RangeCount(), 1U); |
| 54 |
| 55 // Add new cue to end of (only) range. |
| 56 EXPECT_TRUE(AddCue(9)); |
| 57 EXPECT_EQ(RangeCount(), 1U); |
| 58 } |
| 59 |
| 60 TEST_F(TextRangesTest, TestOneRange) { |
| 61 // Create a new active range, with t=0. |
| 62 EXPECT_TRUE(AddCue(0)); |
| 63 |
| 64 // Add cues to end of existing range. |
| 65 EXPECT_TRUE(AddCue(1)); |
| 66 EXPECT_TRUE(AddCue(4)); |
| 67 |
| 68 Reset(); |
| 69 EXPECT_FALSE(AddCue(2)); |
| 70 EXPECT_FALSE(AddCue(3)); |
| 71 EXPECT_FALSE(AddCue(4)); |
| 72 } |
| 73 |
| 74 TEST_F(TextRangesTest, TestDuplicateLast) { |
| 75 // Create a new active range, with t=0. |
| 76 EXPECT_TRUE(AddCue(0)); |
| 77 EXPECT_TRUE(AddCue(1)); |
| 78 |
| 79 Reset(); |
| 80 EXPECT_FALSE(AddCue(1)); |
| 81 EXPECT_TRUE(AddCue(1)); |
| 82 } |
| 83 |
| 84 TEST_F(TextRangesTest, TestTwoRanges) { |
| 85 // Create a new active range, with t=0. |
| 86 EXPECT_TRUE(AddCue(0)); |
| 87 |
| 88 // Add cue to end of existing range. |
| 89 EXPECT_TRUE(AddCue(2)); |
| 90 |
| 91 Reset(); |
| 92 |
| 93 // Create a new active range, with t=4. |
| 94 EXPECT_TRUE(AddCue(4)); |
| 95 |
| 96 // Add a new cue to end of last (active) range. |
| 97 EXPECT_TRUE(AddCue(5)); |
| 98 |
| 99 Reset(); |
| 100 |
| 101 // Make first range active. |
| 102 EXPECT_FALSE(AddCue(0)); |
| 103 EXPECT_FALSE(AddCue(2)); |
| 104 |
| 105 // Expand first range. |
| 106 EXPECT_TRUE(AddCue(3)); |
| 107 |
| 108 // Coalesce first and second ranges. |
| 109 EXPECT_FALSE(AddCue(4)); |
| 110 EXPECT_EQ(RangeCount(), 1U); |
| 111 } |
| 112 |
| 113 TEST_F(TextRangesTest, TestThreeRanges) { |
| 114 // Create a new active range, with t=0. |
| 115 EXPECT_TRUE(AddCue(0)); |
| 116 |
| 117 // Add cue to end of existing range. |
| 118 EXPECT_TRUE(AddCue(2)); |
| 119 |
| 120 Reset(); |
| 121 |
| 122 // Create a new active range, with t=4. |
| 123 EXPECT_TRUE(AddCue(4)); |
| 124 |
| 125 // Add a new cue to end of last (active) range. |
| 126 EXPECT_TRUE(AddCue(5)); |
| 127 |
| 128 Reset(); |
| 129 |
| 130 // Create a new active range, in between the other two. |
| 131 EXPECT_TRUE(AddCue(3)); |
| 132 |
| 133 // Coalesce middle and last ranges. |
| 134 EXPECT_FALSE(AddCue(4)); |
| 135 |
| 136 Reset(); |
| 137 |
| 138 // Make first range active. |
| 139 EXPECT_FALSE(AddCue(0)); |
| 140 EXPECT_FALSE(AddCue(2)); |
| 141 |
| 142 // Coalesce first and last ranges. |
| 143 EXPECT_FALSE(AddCue(3)); |
| 144 EXPECT_EQ(RangeCount(), 1U); |
| 145 } |
| 146 |
| 147 } // namespace media |
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