59 lines
1.7 KiB
C++
59 lines
1.7 KiB
C++
/*
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* Copyright (c) 2017 The WebRTC project authors. All Rights Reserved.
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*
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* Use of this source code is governed by a BSD-style license
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* that can be found in the LICENSE file in the root of the source
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* tree. An additional intellectual property rights grant can be found
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* in the file PATENTS. All contributing project authors may
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* be found in the AUTHORS file in the root of the source tree.
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*/
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#include "rtc_base/numerics/moving_max_counter.h"
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#include "test/gtest.h"
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TEST(MovingMaxCounter, ReportsMaximumInTheWindow) {
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rtc::MovingMaxCounter<int> counter(100);
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counter.Add(1, 1);
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EXPECT_EQ(counter.Max(1), 1);
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counter.Add(2, 30);
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EXPECT_EQ(counter.Max(30), 2);
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counter.Add(100, 60);
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EXPECT_EQ(counter.Max(60), 100);
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counter.Add(4, 70);
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EXPECT_EQ(counter.Max(70), 100);
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counter.Add(5, 90);
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EXPECT_EQ(counter.Max(90), 100);
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}
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TEST(MovingMaxCounter, IgnoresOldElements) {
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rtc::MovingMaxCounter<int> counter(100);
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counter.Add(1, 1);
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counter.Add(2, 30);
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counter.Add(100, 60);
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counter.Add(4, 70);
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counter.Add(5, 90);
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EXPECT_EQ(counter.Max(160), 100);
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// 100 is now out of the window. Next maximum is 5.
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EXPECT_EQ(counter.Max(161), 5);
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}
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TEST(MovingMaxCounter, HandlesEmptyWindow) {
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rtc::MovingMaxCounter<int> counter(100);
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counter.Add(123, 1);
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EXPECT_TRUE(counter.Max(101).has_value());
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EXPECT_FALSE(counter.Max(102).has_value());
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}
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TEST(MovingMaxCounter, HandlesSamplesWithEqualTimestamps) {
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rtc::MovingMaxCounter<int> counter(100);
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counter.Add(2, 30);
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EXPECT_EQ(counter.Max(30), 2);
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counter.Add(5, 30);
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EXPECT_EQ(counter.Max(30), 5);
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counter.Add(4, 30);
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EXPECT_EQ(counter.Max(30), 5);
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counter.Add(1, 90);
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EXPECT_EQ(counter.Max(150), 1);
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}
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