Ilya Nikolaevskiy | b968575 | 2017-11-01 14:01:00 +0100 | [diff] [blame] | 1 | /* |
| 2 | * Copyright 2017 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 "rtc_base/numerics/moving_median_filter.h" |
Yves Gerey | 3e70781 | 2018-11-28 16:47:49 +0100 | [diff] [blame] | 12 | |
| 13 | #include <stdint.h> |
| 14 | |
Ilya Nikolaevskiy | b968575 | 2017-11-01 14:01:00 +0100 | [diff] [blame] | 15 | #include "test/gtest.h" |
| 16 | |
| 17 | namespace webrtc { |
| 18 | |
| 19 | TEST(MovingMedianFilterTest, ProcessesNoSamples) { |
| 20 | MovingMedianFilter<int> filter(2); |
| 21 | EXPECT_EQ(0, filter.GetFilteredValue()); |
| 22 | } |
| 23 | |
| 24 | TEST(MovingMedianFilterTest, ReturnsMovingMedianWindow5) { |
| 25 | MovingMedianFilter<int> filter(5); |
| 26 | const int64_t kSamples[5] = {1, 5, 2, 3, 4}; |
| 27 | const int64_t kExpectedFilteredValues[5] = {1, 1, 2, 2, 3}; |
| 28 | for (int i = 0; i < 5; ++i) { |
| 29 | filter.Insert(kSamples[i]); |
| 30 | EXPECT_EQ(kExpectedFilteredValues[i], filter.GetFilteredValue()); |
| 31 | } |
| 32 | } |
| 33 | |
| 34 | TEST(MovingMedianFilterTest, ReturnsMovingMedianWindow3) { |
| 35 | MovingMedianFilter<int> filter(3); |
| 36 | const int64_t kSamples[5] = {1, 5, 2, 3, 4}; |
| 37 | const int64_t kExpectedFilteredValues[5] = {1, 1, 2, 3, 3}; |
| 38 | for (int i = 0; i < 5; ++i) { |
| 39 | filter.Insert(kSamples[i]); |
| 40 | EXPECT_EQ(kExpectedFilteredValues[i], filter.GetFilteredValue()); |
| 41 | } |
| 42 | } |
| 43 | |
| 44 | TEST(MovingMedianFilterTest, ReturnsMovingMedianWindow1) { |
| 45 | MovingMedianFilter<int> filter(1); |
| 46 | const int64_t kSamples[5] = {1, 5, 2, 3, 4}; |
| 47 | const int64_t kExpectedFilteredValues[5] = {1, 5, 2, 3, 4}; |
| 48 | for (int i = 0; i < 5; ++i) { |
| 49 | filter.Insert(kSamples[i]); |
| 50 | EXPECT_EQ(kExpectedFilteredValues[i], filter.GetFilteredValue()); |
| 51 | } |
| 52 | } |
| 53 | |
| 54 | } // namespace webrtc |