clockdrift_detector_unittest.cc (1913B)
1 /* 2 * Copyright (c) 2018 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 "modules/audio_processing/aec3/clockdrift_detector.h" 12 13 #include "test/gtest.h" 14 15 namespace webrtc { 16 TEST(ClockdriftDetector, ClockdriftDetector) { 17 ClockdriftDetector c; 18 // No clockdrift at start. 19 EXPECT_TRUE(c.ClockdriftLevel() == ClockdriftDetector::Level::kNone); 20 21 // Monotonically increasing delay. 22 for (int i = 0; i < 100; i++) 23 c.Update(1000); 24 EXPECT_TRUE(c.ClockdriftLevel() == ClockdriftDetector::Level::kNone); 25 for (int i = 0; i < 100; i++) 26 c.Update(1001); 27 EXPECT_TRUE(c.ClockdriftLevel() == ClockdriftDetector::Level::kNone); 28 for (int i = 0; i < 100; i++) 29 c.Update(1002); 30 // Probable clockdrift. 31 EXPECT_TRUE(c.ClockdriftLevel() == ClockdriftDetector::Level::kProbable); 32 for (int i = 0; i < 100; i++) 33 c.Update(1003); 34 // Verified clockdrift. 35 EXPECT_TRUE(c.ClockdriftLevel() == ClockdriftDetector::Level::kVerified); 36 37 // Stable delay. 38 for (int i = 0; i < 10000; i++) 39 c.Update(1003); 40 // No clockdrift. 41 EXPECT_TRUE(c.ClockdriftLevel() == ClockdriftDetector::Level::kNone); 42 43 // Decreasing delay. 44 for (int i = 0; i < 100; i++) 45 c.Update(1001); 46 for (int i = 0; i < 100; i++) 47 c.Update(999); 48 // Probable clockdrift. 49 EXPECT_TRUE(c.ClockdriftLevel() == ClockdriftDetector::Level::kProbable); 50 for (int i = 0; i < 100; i++) 51 c.Update(1000); 52 for (int i = 0; i < 100; i++) 53 c.Update(998); 54 // Verified clockdrift. 55 EXPECT_TRUE(c.ClockdriftLevel() == ClockdriftDetector::Level::kVerified); 56 } 57 } // namespace webrtc