ilnik | a79cc28 | 2017-08-23 05:24:10 -0700 | [diff] [blame] | 1 | /* |
| 2 | * Copyright (c) 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 | |
Mirko Bonadei | 92ea95e | 2017-09-15 06:47:31 +0200 | [diff] [blame] | 11 | #include "rtc_base/moving_max_counter.h" |
| 12 | #include "test/gtest.h" |
ilnik | a79cc28 | 2017-08-23 05:24:10 -0700 | [diff] [blame] | 13 | |
| 14 | TEST(MovingMaxCounter, ReportsMaximumInTheWindow) { |
| 15 | rtc::MovingMaxCounter<int> counter(100); |
| 16 | counter.Add(1, 1); |
| 17 | EXPECT_EQ(counter.Max(1), rtc::Optional<int>(1)); |
| 18 | counter.Add(2, 30); |
| 19 | EXPECT_EQ(counter.Max(30), rtc::Optional<int>(2)); |
| 20 | counter.Add(100, 60); |
| 21 | EXPECT_EQ(counter.Max(60), rtc::Optional<int>(100)); |
| 22 | counter.Add(4, 70); |
| 23 | EXPECT_EQ(counter.Max(70), rtc::Optional<int>(100)); |
| 24 | counter.Add(5, 90); |
| 25 | EXPECT_EQ(counter.Max(90), rtc::Optional<int>(100)); |
| 26 | } |
| 27 | |
| 28 | TEST(MovingMaxCounter, IgnoresOldElements) { |
| 29 | rtc::MovingMaxCounter<int> counter(100); |
| 30 | counter.Add(1, 1); |
| 31 | counter.Add(2, 30); |
| 32 | counter.Add(100, 60); |
| 33 | counter.Add(4, 70); |
| 34 | counter.Add(5, 90); |
| 35 | EXPECT_EQ(counter.Max(160), rtc::Optional<int>(100)); |
| 36 | // 100 is now out of the window. Next maximum is 5. |
| 37 | EXPECT_EQ(counter.Max(161), rtc::Optional<int>(5)); |
| 38 | } |
| 39 | |
| 40 | TEST(MovingMaxCounter, HandlesEmptyWindow) { |
| 41 | rtc::MovingMaxCounter<int> counter(100); |
| 42 | counter.Add(123, 1); |
| 43 | EXPECT_TRUE(counter.Max(101).has_value()); |
| 44 | EXPECT_FALSE(counter.Max(102).has_value()); |
| 45 | } |
| 46 | |
| 47 | TEST(MovingMaxCounter, HandlesSamplesWithEqualTimestamps) { |
| 48 | rtc::MovingMaxCounter<int> counter(100); |
| 49 | counter.Add(2, 30); |
| 50 | EXPECT_EQ(counter.Max(30), rtc::Optional<int>(2)); |
| 51 | counter.Add(5, 30); |
| 52 | EXPECT_EQ(counter.Max(30), rtc::Optional<int>(5)); |
| 53 | counter.Add(4, 30); |
| 54 | EXPECT_EQ(counter.Max(30), rtc::Optional<int>(5)); |
| 55 | counter.Add(1, 90); |
| 56 | EXPECT_EQ(counter.Max(150), rtc::Optional<int>(1)); |
| 57 | } |