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1 // Copyright (c) 2010 The Chromium Authors. All rights reserved. | 1 // Copyright (c) 2011 The Chromium Authors. All rights reserved. |
2 // Use of this source code is governed by a BSD-style license that can be | 2 // Use of this source code is governed by a BSD-style license that can be |
3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
4 | 4 |
5 #include "base/logging.h" | 5 #include "base/logging.h" |
6 #include "base/basictypes.h" | 6 #include "base/basictypes.h" |
7 #include "base/scoped_ptr.h" | 7 #include "base/scoped_ptr.h" |
8 #include "base/time.h" | 8 #include "base/time.h" |
9 #include "media/audio/audio_manager.h" | 9 #include "media/audio/audio_manager.h" |
10 #include "media/audio/fake_audio_output_stream.h" | 10 #include "media/audio/fake_audio_output_stream.h" |
11 #include "media/audio/simple_sources.h" | 11 #include "media/audio/simple_sources.h" |
12 #include "testing/gtest/include/gtest/gtest.h" | 12 #include "testing/gtest/include/gtest/gtest.h" |
13 | 13 |
14 namespace { | 14 static void GenerateRandomData(char* buffer, uint32 len) { |
15 | |
16 void GenerateRandomData(char* buffer, uint32 len) { | |
17 static bool called = false; | 15 static bool called = false; |
18 if (!called) { | 16 if (!called) { |
19 called = true; | 17 called = true; |
20 int seed = static_cast<int>(base::Time::Now().ToInternalValue()); | 18 int seed = static_cast<int>(base::Time::Now().ToInternalValue()); |
21 srand(seed); | 19 srand(seed); |
22 VLOG(1) << "Random seed: " << seed; | 20 VLOG(1) << "Random seed: " << seed; |
23 } | 21 } |
24 | 22 |
25 for (uint32 i = 0; i < len; i++) | 23 for (uint32 i = 0; i < len; i++) |
26 buffer[i] = static_cast<char>(rand()); | 24 buffer[i] = static_cast<char>(rand()); |
27 } | 25 } |
28 | 26 |
29 } // namespace | |
30 | |
31 // To test write size smaller than read size. | 27 // To test write size smaller than read size. |
32 TEST(SimpleSourcesTest, PushSourceSmallerWrite) { | 28 TEST(SimpleSourcesTest, PushSourceSmallerWrite) { |
33 const uint32 kDataSize = 40960; | 29 const uint32 kDataSize = 40960; |
34 scoped_array<char> data(new char[kDataSize]); | 30 scoped_array<char> data(new char[kDataSize]); |
35 GenerateRandomData(data.get(), kDataSize); | 31 GenerateRandomData(data.get(), kDataSize); |
36 | 32 |
37 // Choose two prime numbers for read and write sizes. | 33 // Choose two prime numbers for read and write sizes. |
38 const uint32 kWriteSize = 283; | 34 const uint32 kWriteSize = 283; |
39 const uint32 kReadSize = 293; | 35 const uint32 kReadSize = 293; |
40 scoped_array<uint8> read_data(new uint8[kReadSize]); | 36 scoped_array<uint8> read_data(new uint8[kReadSize]); |
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97 EXPECT_EQ(0, last_buffer[0]); | 93 EXPECT_EQ(0, last_buffer[0]); |
98 EXPECT_EQ(5126, last_buffer[1]); | 94 EXPECT_EQ(5126, last_buffer[1]); |
99 EXPECT_TRUE(last_buffer[1] < last_buffer[2]); | 95 EXPECT_TRUE(last_buffer[1] < last_buffer[2]); |
100 EXPECT_TRUE(last_buffer[2] < last_buffer[3]); | 96 EXPECT_TRUE(last_buffer[2] < last_buffer[3]); |
101 // Spot test negative incursion of sine wave. | 97 // Spot test negative incursion of sine wave. |
102 EXPECT_EQ(0, last_buffer[half_period]); | 98 EXPECT_EQ(0, last_buffer[half_period]); |
103 EXPECT_EQ(-5126, last_buffer[half_period + 1]); | 99 EXPECT_EQ(-5126, last_buffer[half_period + 1]); |
104 EXPECT_TRUE(last_buffer[half_period + 1] > last_buffer[half_period + 2]); | 100 EXPECT_TRUE(last_buffer[half_period + 1] > last_buffer[half_period + 2]); |
105 EXPECT_TRUE(last_buffer[half_period + 2] > last_buffer[half_period + 3]); | 101 EXPECT_TRUE(last_buffer[half_period + 2] > last_buffer[half_period + 3]); |
106 } | 102 } |
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