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fbf66ddddf
This helper class currently lives in `modules/video_coding`, but it's only users are in `video/`. Thus, it makes sense to move the class to `video/`. Bug: webrtc:14116 Change-Id: I0d3f8961bc8f5fe80f3100dbbd309b206020e6d5 Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/262963 Reviewed-by: Åsa Persson <asapersson@webrtc.org> Commit-Queue: Rasmus Brandt <brandtr@webrtc.org> Cr-Commit-Position: refs/heads/main@{#36973}
52 lines
1.6 KiB
C++
52 lines
1.6 KiB
C++
/*
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* Copyright (c) 2019 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 "video/unique_timestamp_counter.h"
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#include "test/gtest.h"
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namespace webrtc {
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namespace {
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TEST(UniqueTimestampCounterTest, InitiallyZero) {
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UniqueTimestampCounter counter;
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EXPECT_EQ(counter.GetUniqueSeen(), 0);
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}
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TEST(UniqueTimestampCounterTest, CountsUniqueValues) {
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UniqueTimestampCounter counter;
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counter.Add(100);
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counter.Add(100);
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counter.Add(200);
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counter.Add(150);
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counter.Add(100);
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EXPECT_EQ(counter.GetUniqueSeen(), 3);
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}
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TEST(UniqueTimestampCounterTest, ForgetsOldValuesAfter1000NewValues) {
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const int kNumValues = 1500;
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const int kMaxHistory = 1000;
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const uint32_t value = 0xFFFFFFF0;
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UniqueTimestampCounter counter;
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for (int i = 0; i < kNumValues; ++i) {
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counter.Add(value + 10 * i);
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}
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ASSERT_EQ(counter.GetUniqueSeen(), kNumValues);
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// Slightly old values not affect number of seen unique values.
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for (int i = kNumValues - kMaxHistory; i < kNumValues; ++i) {
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counter.Add(value + 10 * i);
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}
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EXPECT_EQ(counter.GetUniqueSeen(), kNumValues);
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// Very old value will be treated as unique.
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counter.Add(value);
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EXPECT_EQ(counter.GetUniqueSeen(), kNumValues + 1);
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}
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} // namespace
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} // namespace webrtc
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