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// Copyright 2019 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "content/browser/media/media_power_experiment_manager.h"
#include "base/functional/callback_helpers.h"
#include "base/memory/ptr_util.h"
#include "base/time/time.h"
#include "base/version.h"
#include "content/public/browser/global_routing_id.h"
#include "content/public/test/browser_task_environment.h"
#include "media/base/media_controller.h"
#include "media/base/media_switches.h"
#include "media/base/mock_filters.h"
#include "testing/gmock/include/gmock/gmock.h"
#include "testing/gtest/include/gtest/gtest.h"
namespace content {
class MediaPowerExperimentManagerTest : public testing::Test {
public:
MediaPowerExperimentManagerTest()
: manager_(std::make_unique<MediaPowerExperimentManager>()),
player_id_1_(GlobalRenderFrameHostId(), 1),
player_id_2_(GlobalRenderFrameHostId(), 2),
cb_1_(base::BindRepeating([](bool* out, bool state) { *out = state; },
&experiment_state_1_)),
cb_2_(base::BindRepeating([](bool* out, bool state) { *out = state; },
&experiment_state_2_)) {}
protected:
content::BrowserTaskEnvironment task_environment_;
std::unique_ptr<MediaPowerExperimentManager> manager_;
// Unique player IDs. Note that we can't CreateMediaPlayerIdForTesting()
// since it doesn't return unique IDs.
MediaPlayerId player_id_1_;
MediaPlayerId player_id_2_;
bool experiment_state_1_ = false;
bool experiment_state_2_ = false;
MediaPowerExperimentManager::ExperimentCB cb_1_;
MediaPowerExperimentManager::ExperimentCB cb_2_;
};
TEST_F(MediaPowerExperimentManagerTest, ExperimentStopsWhenPlayerStopped) {
// Create a player, and verify that the the experiment starts, then stops
// when it stops playing.
EXPECT_FALSE(experiment_state_1_);
manager_->PlayerStarted(player_id_1_, cb_1_);
// Should call back, but not re-entrantly.
EXPECT_FALSE(experiment_state_1_);
base::RunLoop().RunUntilIdle();
EXPECT_TRUE(experiment_state_1_);
manager_->PlayerStopped(player_id_1_);
EXPECT_TRUE(experiment_state_1_);
base::RunLoop().RunUntilIdle();
EXPECT_FALSE(experiment_state_1_);
}
TEST_F(MediaPowerExperimentManagerTest, ExperimentStopsWhenSecondPlayerStarts) {
// If we add a second playing player, then the experiment should stop.
manager_->PlayerStarted(player_id_1_, cb_1_);
base::RunLoop().RunUntilIdle();
EXPECT_TRUE(experiment_state_1_);
EXPECT_FALSE(experiment_state_2_);
manager_->PlayerStarted(player_id_2_, cb_2_);
base::RunLoop().RunUntilIdle();
EXPECT_FALSE(experiment_state_1_);
EXPECT_FALSE(experiment_state_2_);
manager_->PlayerStopped(player_id_1_);
manager_->PlayerStopped(player_id_2_);
}
TEST_F(MediaPowerExperimentManagerTest,
ExperimentRestartsWhenFirstPlayerRemoved) {
// If we add a second playing player, then removing the first should start it.
manager_->PlayerStarted(player_id_1_, cb_1_);
manager_->PlayerStarted(player_id_2_, cb_2_);
base::RunLoop().RunUntilIdle();
EXPECT_FALSE(experiment_state_1_);
EXPECT_FALSE(experiment_state_2_);
manager_->PlayerStopped(player_id_1_);
base::RunLoop().RunUntilIdle();
EXPECT_FALSE(experiment_state_1_);
EXPECT_TRUE(experiment_state_2_);
manager_->PlayerStopped(player_id_2_);
base::RunLoop().RunUntilIdle();
EXPECT_FALSE(experiment_state_2_);
}
TEST_F(MediaPowerExperimentManagerTest, NotificationsCanBeSkipped) {
manager_->PlayerStarted(player_id_1_, cb_1_);
manager_->PlayerStopped(player_id_1_,
MediaPowerExperimentManager::NotificationMode::kSkip);
base::RunLoop().RunUntilIdle();
// Since we skipped notification, the state should still be true.
EXPECT_TRUE(experiment_state_1_);
}
} // namespace content
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