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116 lines
4.5 KiB
116 lines
4.5 KiB
4 months ago
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/*
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* Copyright 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/quality_limitation_reason_tracker.h"
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#include "common_video/include/quality_limitation_reason.h"
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#include "system_wrappers/include/clock.h"
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#include "test/gtest.h"
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namespace webrtc {
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class QualityLimitationReasonTrackerTest : public ::testing::Test {
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public:
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QualityLimitationReasonTrackerTest()
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: fake_clock_(1234), tracker_(&fake_clock_) {}
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protected:
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SimulatedClock fake_clock_;
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QualityLimitationReasonTracker tracker_;
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};
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TEST_F(QualityLimitationReasonTrackerTest, DefaultValues) {
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EXPECT_EQ(QualityLimitationReason::kNone, tracker_.current_reason());
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auto durations_ms = tracker_.DurationsMs();
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EXPECT_EQ(4u, durations_ms.size());
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EXPECT_EQ(0, durations_ms.find(QualityLimitationReason::kNone)->second);
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EXPECT_EQ(0, durations_ms.find(QualityLimitationReason::kCpu)->second);
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EXPECT_EQ(0, durations_ms.find(QualityLimitationReason::kBandwidth)->second);
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EXPECT_EQ(0, durations_ms.find(QualityLimitationReason::kOther)->second);
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}
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TEST_F(QualityLimitationReasonTrackerTest, NoneDurationIncreasesByDefault) {
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int64_t initial_duration_ms =
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tracker_.DurationsMs()[QualityLimitationReason::kNone];
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fake_clock_.AdvanceTimeMilliseconds(9999);
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EXPECT_EQ(initial_duration_ms + 9999,
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tracker_.DurationsMs()[QualityLimitationReason::kNone]);
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}
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TEST_F(QualityLimitationReasonTrackerTest,
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RememberDurationAfterSwitchingReason) {
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tracker_.SetReason(QualityLimitationReason::kCpu);
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int64_t initial_duration_ms =
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tracker_.DurationsMs()[QualityLimitationReason::kCpu];
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fake_clock_.AdvanceTimeMilliseconds(50);
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tracker_.SetReason(QualityLimitationReason::kOther);
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fake_clock_.AdvanceTimeMilliseconds(50);
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EXPECT_EQ(initial_duration_ms + 50,
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tracker_.DurationsMs()[QualityLimitationReason::kCpu]);
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}
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class QualityLimitationReasonTrackerTestWithParamReason
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: public QualityLimitationReasonTrackerTest,
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public ::testing::WithParamInterface<QualityLimitationReason> {
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public:
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QualityLimitationReasonTrackerTestWithParamReason()
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: reason_(GetParam()),
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different_reason_(reason_ != QualityLimitationReason::kCpu
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? QualityLimitationReason::kCpu
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: QualityLimitationReason::kOther) {}
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protected:
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QualityLimitationReason reason_;
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QualityLimitationReason different_reason_;
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};
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TEST_P(QualityLimitationReasonTrackerTestWithParamReason,
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DurationIncreasesOverTime) {
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int64_t initial_duration_ms = tracker_.DurationsMs()[reason_];
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tracker_.SetReason(reason_);
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EXPECT_EQ(initial_duration_ms, tracker_.DurationsMs()[reason_]);
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fake_clock_.AdvanceTimeMilliseconds(4321);
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EXPECT_EQ(initial_duration_ms + 4321, tracker_.DurationsMs()[reason_]);
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}
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TEST_P(QualityLimitationReasonTrackerTestWithParamReason,
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SwitchBetweenReasonsBackAndForth) {
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int64_t initial_duration_ms = tracker_.DurationsMs()[reason_];
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// Spend 100 ms in |different_reason_|.
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tracker_.SetReason(different_reason_);
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fake_clock_.AdvanceTimeMilliseconds(100);
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EXPECT_EQ(initial_duration_ms, tracker_.DurationsMs()[reason_]);
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// Spend 50 ms in |reason_|.
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tracker_.SetReason(reason_);
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fake_clock_.AdvanceTimeMilliseconds(50);
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EXPECT_EQ(initial_duration_ms + 50, tracker_.DurationsMs()[reason_]);
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// Spend another 1000 ms in |different_reason_|.
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tracker_.SetReason(different_reason_);
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fake_clock_.AdvanceTimeMilliseconds(1000);
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EXPECT_EQ(initial_duration_ms + 50, tracker_.DurationsMs()[reason_]);
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// Spend another 100 ms in |reason_|.
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tracker_.SetReason(reason_);
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fake_clock_.AdvanceTimeMilliseconds(100);
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EXPECT_EQ(initial_duration_ms + 150, tracker_.DurationsMs()[reason_]);
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// Change reason one last time without advancing time.
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tracker_.SetReason(different_reason_);
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EXPECT_EQ(initial_duration_ms + 150, tracker_.DurationsMs()[reason_]);
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}
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INSTANTIATE_TEST_SUITE_P(
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All,
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QualityLimitationReasonTrackerTestWithParamReason,
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::testing::Values(QualityLimitationReason::kNone, // "/0"
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QualityLimitationReason::kCpu, // "/1"
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QualityLimitationReason::kBandwidth, // "/2"
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QualityLimitationReason::kOther)); // "/3"
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} // namespace webrtc
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