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// Copyright 2018 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "chromeos/ash/components/power/dark_resume_controller.h"
#include <memory>
#include <utility>
#include "base/run_loop.h"
#include "base/test/task_environment.h"
#include "base/time/time.h"
#include "chromeos/dbus/power/fake_power_manager_client.h"
#include "mojo/public/cpp/bindings/remote.h"
#include "services/device/public/cpp/test/test_wake_lock_provider.h"
#include "testing/gtest/include/gtest/gtest.h"
namespace ash::system {
namespace {
using ::device::mojom::WakeLockType;
constexpr char kWakeLockDescription[] = "DarkResumeTest";
} // namespace
class DarkResumeControllerTest : public testing::Test {
public:
DarkResumeControllerTest()
: task_environment_(base::test::TaskEnvironment::TimeSource::MOCK_TIME) {}
DarkResumeControllerTest(const DarkResumeControllerTest&) = delete;
DarkResumeControllerTest& operator=(const DarkResumeControllerTest&) = delete;
~DarkResumeControllerTest() override = default;
void SetUp() override {
// Create wake lock that will be acquired and released in tests.
wake_lock_provider_.GetWakeLockWithoutContext(
WakeLockType::kPreventAppSuspension,
device::mojom::WakeLockReason::kOther, kWakeLockDescription,
wake_lock_.BindNewPipeAndPassReceiver());
chromeos::PowerManagerClient::InitializeFake();
mojo::PendingRemote<device::mojom::WakeLockProvider> provider_remote;
wake_lock_provider_.BindReceiver(
provider_remote.InitWithNewPipeAndPassReceiver());
dark_resume_controller_ =
std::make_unique<DarkResumeController>(std::move(provider_remote));
}
void TearDown() override {
dark_resume_controller_.reset();
chromeos::PowerManagerClient::Shutdown();
}
protected:
// Returns the number of active wake locks of type |type|.
int32_t GetActiveWakeLocks(WakeLockType type) {
base::RunLoop run_loop;
int32_t result_count = -1;
wake_lock_provider_.GetActiveWakeLocksForTests(
type,
base::BindOnce(
[](base::RunLoop* run_loop, int32_t* result_count, int32_t count) {
*result_count = count;
run_loop->Quit();
},
&run_loop, &result_count));
run_loop.Run();
return result_count;
}
chromeos::FakePowerManagerClient* fake_power_manager_client() {
return chromeos::FakePowerManagerClient::Get();
}
base::test::TaskEnvironment task_environment_;
mojo::Remote<device::mojom::WakeLock> wake_lock_;
std::unique_ptr<DarkResumeController> dark_resume_controller_;
private:
device::TestWakeLockProvider wake_lock_provider_;
};
TEST_F(DarkResumeControllerTest, CheckSuspendAfterDarkResumeNoWakeLocksHeld) {
// Trigger a dark resume event, move time forward to trigger a wake lock check
// and check if a re-suspend happened if no wake locks were acquired.
fake_power_manager_client()->SendDarkSuspendImminent();
task_environment_.FastForwardBy(
DarkResumeController::kDarkResumeWakeLockCheckTimeout);
base::RunLoop run_loop;
run_loop.RunUntilIdle();
EXPECT_TRUE(dark_resume_controller_->IsDarkResumeStateClearedForTesting());
EXPECT_EQ(
0,
fake_power_manager_client()->num_pending_suspend_readiness_callbacks());
// Trigger a dark resume event, acquire and release a wake lock and move time
// forward to trigger a wake lock check. The device should re-suspend in this
// case since no wake locks were held at the time of the wake lock check.
fake_power_manager_client()->SendDarkSuspendImminent();
wake_lock_->RequestWakeLock();
wake_lock_->CancelWakeLock();
task_environment_.FastForwardBy(
DarkResumeController::kDarkResumeWakeLockCheckTimeout);
base::RunLoop run_loop2;
run_loop2.RunUntilIdle();
EXPECT_TRUE(dark_resume_controller_->IsDarkResumeStateClearedForTesting());
EXPECT_EQ(
0,
fake_power_manager_client()->num_pending_suspend_readiness_callbacks());
}
TEST_F(DarkResumeControllerTest, CheckSuspendAfterDarkResumeWakeLocksHeld) {
// Trigger a dark resume event, acquire a wake lock and move time forward to a
// wake lock check. At this point the system shouldn't re-suspend i.e. the
// suspend readiness callback should be set and wake lock release should have
// observers.
fake_power_manager_client()->SendDarkSuspendImminent();
wake_lock_->RequestWakeLock();
task_environment_.FastForwardBy(
DarkResumeController::kDarkResumeWakeLockCheckTimeout);
base::RunLoop run_loop;
run_loop.RunUntilIdle();
EXPECT_TRUE(dark_resume_controller_->IsDarkResumeStateSetForTesting());
// Move time forward by < |dark_resume_hard_timeout_| and release the
// partial wake lock. This should instantaneously re-suspend the device.
base::TimeDelta small_delay = base::Seconds(1);
ASSERT_GT(dark_resume_controller_->GetHardTimeoutForTesting(), small_delay);
task_environment_.FastForwardBy(
dark_resume_controller_->GetHardTimeoutForTesting() - small_delay);
wake_lock_->CancelWakeLock();
base::RunLoop run_loop2;
run_loop2.RunUntilIdle();
EXPECT_TRUE(dark_resume_controller_->IsDarkResumeStateClearedForTesting());
EXPECT_EQ(
0,
fake_power_manager_client()->num_pending_suspend_readiness_callbacks());
}
TEST_F(DarkResumeControllerTest, CheckSuspendAfterDarkResumeHardTimeout) {
// Trigger a dark resume event, acquire a wake lock and move time forward to a
// wake lock check. At this point the system shouldn't re-suspend i.e. the
// suspend readiness callback should be set and wake lock release should have
// observers.
fake_power_manager_client()->SendDarkSuspendImminent();
wake_lock_->RequestWakeLock();
task_environment_.FastForwardBy(
DarkResumeController::kDarkResumeWakeLockCheckTimeout);
base::RunLoop run_loop;
run_loop.RunUntilIdle();
EXPECT_TRUE(dark_resume_controller_->IsDarkResumeStateSetForTesting());
// Move time forward by |dark_resume_hard_timeout_|. At this point the
// device should re-suspend even though the wake lock is acquired.
task_environment_.FastForwardBy(
dark_resume_controller_->GetHardTimeoutForTesting());
EXPECT_EQ(1, GetActiveWakeLocks(WakeLockType::kPreventAppSuspension));
base::RunLoop run_loop2;
run_loop2.RunUntilIdle();
EXPECT_TRUE(dark_resume_controller_->IsDarkResumeStateClearedForTesting());
EXPECT_EQ(
0,
fake_power_manager_client()->num_pending_suspend_readiness_callbacks());
}
TEST_F(DarkResumeControllerTest, CheckStateResetAfterSuspendDone) {
// Trigger a dark resume event, acquire a wake lock and move time forward to a
// wake lock check. At this point the system shouldn't re-suspend i.e. the
// suspend readiness callback should be set and wake lock release should have
// observers.
fake_power_manager_client()->SendDarkSuspendImminent();
wake_lock_->RequestWakeLock();
task_environment_.FastForwardBy(
DarkResumeController::kDarkResumeWakeLockCheckTimeout);
base::RunLoop run_loop;
run_loop.RunUntilIdle();
EXPECT_TRUE(dark_resume_controller_->IsDarkResumeStateSetForTesting());
// Trigger suspend done event. Check if state is reset as dark resume would be
// exited.
fake_power_manager_client()->SendSuspendDone();
EXPECT_TRUE(dark_resume_controller_->IsDarkResumeStateClearedForTesting());
}
} // namespace ash::system
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