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| 1 /* |
| 2 * Copyright (c) 2016 The WebRTC project authors. All Rights Reserved. |
| 3 * |
| 4 * Use of this source code is governed by a BSD-style license |
| 5 * that can be found in the LICENSE file in the root of the source |
| 6 * tree. An additional intellectual property rights grant can be found |
| 7 * in the file PATENTS. All contributing project authors may |
| 8 * be found in the AUTHORS file in the root of the source tree. |
| 9 */ |
| 10 |
| 11 #include "webrtc/modules/audio_processing/echo_detector/circular_buffer.h" |
| 12 #include "webrtc/test/gtest.h" |
| 13 |
| 14 namespace webrtc { |
| 15 |
| 16 TEST(CircularBufferTests, LessThanMaxTest) { |
| 17 CircularBuffer test_buffer(3); |
| 18 test_buffer.Push(1.f); |
| 19 test_buffer.Push(2.f); |
| 20 EXPECT_EQ(rtc::Optional<float>(1.f), test_buffer.Pop()); |
| 21 EXPECT_EQ(rtc::Optional<float>(2.f), test_buffer.Pop()); |
| 22 } |
| 23 |
| 24 TEST(CircularBufferTests, FillTest) { |
| 25 CircularBuffer test_buffer(3); |
| 26 test_buffer.Push(1.f); |
| 27 test_buffer.Push(2.f); |
| 28 test_buffer.Push(3.f); |
| 29 EXPECT_EQ(rtc::Optional<float>(1.f), test_buffer.Pop()); |
| 30 EXPECT_EQ(rtc::Optional<float>(2.f), test_buffer.Pop()); |
| 31 EXPECT_EQ(rtc::Optional<float>(3.f), test_buffer.Pop()); |
| 32 } |
| 33 |
| 34 TEST(CircularBufferTests, OverflowTest) { |
| 35 CircularBuffer test_buffer(3); |
| 36 test_buffer.Push(1.f); |
| 37 test_buffer.Push(2.f); |
| 38 test_buffer.Push(3.f); |
| 39 test_buffer.Push(4.f); |
| 40 // Because the circular buffer has a size of 3, the first insert should have |
| 41 // been forgotten. |
| 42 EXPECT_EQ(rtc::Optional<float>(2.f), test_buffer.Pop()); |
| 43 EXPECT_EQ(rtc::Optional<float>(3.f), test_buffer.Pop()); |
| 44 EXPECT_EQ(rtc::Optional<float>(4.f), test_buffer.Pop()); |
| 45 } |
| 46 |
| 47 TEST(CircularBufferTests, ReadFromEmpty) { |
| 48 CircularBuffer test_buffer(3); |
| 49 EXPECT_EQ(rtc::Optional<float>(), test_buffer.Pop()); |
| 50 } |
| 51 |
| 52 } // namespace webrtc |
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