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content / browser / power_monitor_browsertest.cc [blame]
// Copyright 2017 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include <utility>
#include "base/functional/bind.h"
#include "base/functional/callback_helpers.h"
#include "base/power_monitor/power_observer.h"
#include "base/run_loop.h"
#include "base/strings/utf_string_conversions.h"
#include "content/browser/renderer_host/render_process_host_impl.h"
#include "content/browser/renderer_host/spare_render_process_host_manager_impl.h"
#include "content/browser/utility_process_host.h"
#include "content/public/browser/browser_child_process_host.h"
#include "content/public/browser/browser_task_traits.h"
#include "content/public/browser/browser_thread.h"
#include "content/public/browser/child_process_data.h"
#include "content/public/browser/gpu_service_registry.h"
#include "content/public/browser/render_frame_host.h"
#include "content/public/browser/render_process_host.h"
#include "content/public/browser/web_contents.h"
#include "content/public/common/content_features.h"
#include "content/public/common/process_type.h"
#include "content/public/test/browser_test.h"
#include "content/public/test/browser_test_utils.h"
#include "content/public/test/content_browser_test.h"
#include "content/public/test/content_browser_test_utils.h"
#include "content/shell/browser/shell.h"
#include "content/shell/common/power_monitor_test.mojom.h"
#include "mojo/public/cpp/bindings/pending_receiver.h"
#include "mojo/public/cpp/bindings/pending_remote.h"
#include "mojo/public/cpp/bindings/receiver_set.h"
#include "mojo/public/cpp/bindings/remote.h"
#include "mojo/public/cpp/bindings/remote_set.h"
#include "services/device/public/mojom/power_monitor.mojom.h"
namespace content {
namespace {
void VerifyPowerStateInChildProcess(
mojom::PowerMonitorTest* power_monitor_test,
base::PowerStateObserver::BatteryPowerStatus expected_state) {
base::RunLoop run_loop;
power_monitor_test->QueryNextState(base::BindOnce(
[](base::RunLoop* loop,
base::PowerStateObserver::BatteryPowerStatus expected_state,
base::PowerStateObserver::BatteryPowerStatus battery_power_status) {
EXPECT_EQ(expected_state, battery_power_status);
loop->Quit();
},
&run_loop, expected_state));
run_loop.Run();
}
class MockPowerMonitorMessageBroadcaster : public device::mojom::PowerMonitor {
public:
MockPowerMonitorMessageBroadcaster() = default;
MockPowerMonitorMessageBroadcaster(
const MockPowerMonitorMessageBroadcaster&) = delete;
MockPowerMonitorMessageBroadcaster& operator=(
const MockPowerMonitorMessageBroadcaster&) = delete;
~MockPowerMonitorMessageBroadcaster() override = default;
void Bind(mojo::PendingReceiver<device::mojom::PowerMonitor> receiver) {
receivers_.Add(this, std::move(receiver));
}
// device::mojom::PowerMonitor:
void AddClient(mojo::PendingRemote<device::mojom::PowerMonitorClient>
pending_power_monitor_client) override {
mojo::Remote<device::mojom::PowerMonitorClient> power_monitor_client(
std::move(pending_power_monitor_client));
power_monitor_client->PowerStateChange(battery_power_status_);
clients_.Add(std::move(power_monitor_client));
}
void OnPowerStateChange(
base::PowerStateObserver::BatteryPowerStatus battery_power_status) {
battery_power_status_ = battery_power_status;
for (auto& client : clients_)
client->PowerStateChange(battery_power_status);
}
private:
base::PowerStateObserver::BatteryPowerStatus battery_power_status_ =
base::PowerStateObserver::BatteryPowerStatus::kUnknown;
mojo::ReceiverSet<device::mojom::PowerMonitor> receivers_;
mojo::RemoteSet<device::mojom::PowerMonitorClient> clients_;
};
class PowerMonitorTest : public ContentBrowserTest {
public:
PowerMonitorTest() {
// Intercept PowerMonitor binding requests from all types of child
// processes.
RenderProcessHost::InterceptBindHostReceiverForTesting(base::BindRepeating(
&PowerMonitorTest::BindForRenderer, base::Unretained(this)));
BrowserChildProcessHost::InterceptBindHostReceiverForTesting(
base::BindRepeating(&PowerMonitorTest::BindForNonRenderer,
base::Unretained(this)));
}
PowerMonitorTest(const PowerMonitorTest&) = delete;
PowerMonitorTest& operator=(const PowerMonitorTest&) = delete;
~PowerMonitorTest() override {
RenderProcessHost::InterceptBindHostReceiverForTesting(
base::NullCallback());
BrowserChildProcessHost::InterceptBindHostReceiverForTesting(
base::NullCallback());
}
void BindForRenderer(int render_process_id,
mojo::GenericPendingReceiver* receiver) {
auto r = receiver->As<device::mojom::PowerMonitor>();
if (!r)
return;
GetUIThreadTaskRunner({})->PostTask(
FROM_HERE,
base::BindOnce(&PowerMonitorTest::BindForRendererOnMainThread,
base::Unretained(this), std::move(r)));
}
void BindForNonRenderer(BrowserChildProcessHost* process_host,
mojo::GenericPendingReceiver* receiver) {
auto r = receiver->As<device::mojom::PowerMonitor>();
if (!r)
return;
GetUIThreadTaskRunner({})->PostTask(
FROM_HERE,
base::BindOnce(&PowerMonitorTest::BindForNonRendererOnMainThread,
base::Unretained(this),
process_host->GetData().process_type, std::move(r)));
}
protected:
void StartUtilityProcess(
mojo::Remote<mojom::PowerMonitorTest>* power_monitor_test,
base::OnceClosure utility_bound_closure) {
utility_bound_closure_ = std::move(utility_bound_closure);
UtilityProcessHost* host = new UtilityProcessHost();
host->SetMetricsName("test_process");
host->SetName(u"TestProcess");
EXPECT_TRUE(host->Start());
host->GetChildProcess()->BindReceiver(
power_monitor_test->BindNewPipeAndPassReceiver());
}
void set_renderer_bound_closure(base::OnceClosure closure) {
renderer_bound_closure_ = std::move(closure);
}
void set_gpu_bound_closure(base::OnceClosure closure) {
gpu_bound_closure_ = std::move(closure);
}
int request_count_from_renderer() { return request_count_from_renderer_; }
int request_count_from_utility() { return request_count_from_utility_; }
int request_count_from_gpu() { return request_count_from_gpu_; }
void SimulatePowerStateChange(
base::PowerStateObserver::BatteryPowerStatus battery_power_status) {
power_monitor_message_broadcaster_.OnPowerStateChange(battery_power_status);
}
private:
void BindForRendererOnMainThread(
mojo::PendingReceiver<device::mojom::PowerMonitor> receiver) {
// We can receiver binding requests for the spare RenderProcessHost -- this
// might happen before the test has provided the |renderer_bound_closure_|.
if (renderer_bound_closure_) {
++request_count_from_renderer_;
std::move(renderer_bound_closure_).Run();
} else {
DCHECK_EQ(SpareRenderProcessHostManagerImpl::Get().GetSpares().size(),
1u);
}
power_monitor_message_broadcaster_.Bind(std::move(receiver));
}
void BindForNonRendererOnMainThread(
int process_type,
mojo::PendingReceiver<device::mojom::PowerMonitor> receiver) {
if (process_type == PROCESS_TYPE_UTILITY) {
if (utility_bound_closure_) {
++request_count_from_utility_;
std::move(utility_bound_closure_).Run();
}
} else if (process_type == PROCESS_TYPE_GPU) {
++request_count_from_gpu_;
// We ignore null gpu_bound_closure_ here for two possible scenarios:
// - TestRendererProcess and TestUtilityProcess also result in spinning
// up GPU processes as a side effect, but they do not set valid
// gpu_bound_closure_.
// - As GPU process is started during setup of browser test suite, so
// it's possible that TestGpuProcess execution may have not started
// yet when the PowerMonitor bind request comes here, in such case
// gpu_bound_closure_ will also be null.
if (gpu_bound_closure_)
std::move(gpu_bound_closure_).Run();
}
power_monitor_message_broadcaster_.Bind(std::move(receiver));
}
int request_count_from_renderer_ = 0;
int request_count_from_utility_ = 0;
int request_count_from_gpu_ = 0;
base::OnceClosure renderer_bound_closure_;
base::OnceClosure gpu_bound_closure_;
base::OnceClosure utility_bound_closure_;
MockPowerMonitorMessageBroadcaster power_monitor_message_broadcaster_;
};
IN_PROC_BROWSER_TEST_F(PowerMonitorTest, TestRendererProcess) {
ASSERT_EQ(0, request_count_from_renderer());
base::RunLoop run_loop;
set_renderer_bound_closure(run_loop.QuitClosure());
ASSERT_TRUE(NavigateToURL(shell(), GetTestUrl(".", "simple_page.html")));
run_loop.Run();
EXPECT_EQ(1, request_count_from_renderer());
mojo::Remote<mojom::PowerMonitorTest> power_monitor_renderer;
RenderProcessHost* rph =
shell()->web_contents()->GetPrimaryMainFrame()->GetProcess();
rph->BindReceiver(power_monitor_renderer.BindNewPipeAndPassReceiver());
// Ensure that the PowerMonitorTestImpl instance has been created and is
// observing power state changes in the child process before simulating a
// power state change.
power_monitor_renderer.FlushForTesting();
SimulatePowerStateChange(
base::PowerStateObserver::BatteryPowerStatus::kBatteryPower);
// Verify renderer process battery_power_status changed to battery power.
VerifyPowerStateInChildProcess(
power_monitor_renderer.get(),
base::PowerStateObserver::BatteryPowerStatus::kBatteryPower);
SimulatePowerStateChange(
base::PowerStateObserver::BatteryPowerStatus::kExternalPower);
// Verify renderer process battery_power_status changed to external power.
VerifyPowerStateInChildProcess(
power_monitor_renderer.get(),
base::PowerStateObserver::BatteryPowerStatus::kExternalPower);
SimulatePowerStateChange(
base::PowerStateObserver::BatteryPowerStatus::kUnknown);
// Verify renderer process battery_power_status becomes unknown.
VerifyPowerStateInChildProcess(
power_monitor_renderer.get(),
base::PowerStateObserver::BatteryPowerStatus::kUnknown);
}
IN_PROC_BROWSER_TEST_F(PowerMonitorTest, TestUtilityProcess) {
mojo::Remote<mojom::PowerMonitorTest> power_monitor_utility;
ASSERT_EQ(0, request_count_from_utility());
base::RunLoop run_loop;
StartUtilityProcess(&power_monitor_utility, run_loop.QuitClosure());
run_loop.Run();
EXPECT_EQ(1, request_count_from_utility());
// Ensure that the PowerMonitorTestImpl instance has been created and is
// observing power state changes in the child process before simulating a
// power state change.
power_monitor_utility.FlushForTesting();
SimulatePowerStateChange(
base::PowerStateObserver::BatteryPowerStatus::kBatteryPower);
// Verify renderer process battery_power_status changed to battery power.
VerifyPowerStateInChildProcess(
power_monitor_utility.get(),
base::PowerStateObserver::BatteryPowerStatus::kBatteryPower);
SimulatePowerStateChange(
base::PowerStateObserver::BatteryPowerStatus::kExternalPower);
// Verify renderer process battery_power_status changed to external power.
VerifyPowerStateInChildProcess(
power_monitor_utility.get(),
base::PowerStateObserver::BatteryPowerStatus::kExternalPower);
}
IN_PROC_BROWSER_TEST_F(PowerMonitorTest, TestGpuProcess) {
// As gpu process is started automatically during the setup period of browser
// test suite, it may have already started and bound PowerMonitor interface to
// Device Service before execution of this TestGpuProcess test. So here we
// do not wait for the connection if we found it has already been established.
if (request_count_from_gpu() != 1) {
ASSERT_EQ(0, request_count_from_gpu());
base::RunLoop run_loop;
set_gpu_bound_closure(run_loop.QuitClosure());
// Wait for the connection from gpu process.
run_loop.Run();
}
EXPECT_EQ(1, request_count_from_gpu());
mojo::Remote<mojom::PowerMonitorTest> power_monitor_gpu;
BindInterfaceInGpuProcess(power_monitor_gpu.BindNewPipeAndPassReceiver());
// Ensure that the PowerMonitorTestImpl instance has been created and is
// observing power state changes in the child process before simulating a
// power state change.
power_monitor_gpu.FlushForTesting();
SimulatePowerStateChange(
base::PowerStateObserver::BatteryPowerStatus::kBatteryPower);
// Verify gpu process battery_power_status changed to battery power.
VerifyPowerStateInChildProcess(
power_monitor_gpu.get(),
base::PowerStateObserver::BatteryPowerStatus::kBatteryPower);
SimulatePowerStateChange(
base::PowerStateObserver::BatteryPowerStatus::kExternalPower);
// Verify gpu process battery_power_status changed to external power.
VerifyPowerStateInChildProcess(
power_monitor_gpu.get(),
base::PowerStateObserver::BatteryPowerStatus::kExternalPower);
}
} // namespace
} // namespace content