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// 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 "base/check_op.h"
#include "base/feature_list.h"
#include "base/functional/bind.h"
#include "base/memory/raw_ptr.h"
#include "base/run_loop.h"
#include "base/sequence_checker.h"
#include "base/test/bind.h"
#include "build/build_config.h"
#include "build/chromeos_buildflags.h"
#include "chrome/browser/profiles/profile.h"
#include "chrome/browser/ui/browser.h"
#include "chrome/test/base/in_process_browser_test.h"
#include "content/public/browser/browser_context.h"
#include "content/public/browser/network_service_instance.h"
#include "content/public/browser/network_service_util.h"
#include "content/public/browser/storage_partition.h"
#include "content/public/test/browser_test.h"
#include "content/public/test/browser_test_utils.h"
#include "mojo/public/cpp/bindings/remote.h"
#include "net/base/network_change_notifier.h"
#include "services/network/public/cpp/features.h"
#include "services/network/public/cpp/network_connection_tracker.h"
#include "services/network/public/mojom/network_service.mojom.h"
#include "services/network/public/mojom/network_service_test.mojom.h"
namespace {
class TestNetworkConnectionObserver
: public network::NetworkConnectionTracker::NetworkConnectionObserver {
public:
explicit TestNetworkConnectionObserver(
network::NetworkConnectionTracker* tracker)
: num_notifications_(0),
tracker_(tracker),
run_loop_(std::make_unique<base::RunLoop>()),
connection_type_(network::mojom::ConnectionType::CONNECTION_UNKNOWN) {
DCHECK_CALLED_ON_VALID_SEQUENCE(sequence_checker_);
tracker_->AddNetworkConnectionObserver(this);
}
TestNetworkConnectionObserver(const TestNetworkConnectionObserver&) = delete;
TestNetworkConnectionObserver& operator=(
const TestNetworkConnectionObserver&) = delete;
~TestNetworkConnectionObserver() override {
tracker_->RemoveNetworkConnectionObserver(this);
}
// NetworkConnectionObserver implementation:
void OnConnectionChanged(network::mojom::ConnectionType type) override {
DCHECK_CALLED_ON_VALID_SEQUENCE(sequence_checker_);
network::mojom::ConnectionType queried_type;
bool sync = tracker_->GetConnectionType(
&queried_type,
base::BindOnce([](network::mojom::ConnectionType type) {}));
EXPECT_TRUE(sync);
EXPECT_EQ(type, queried_type);
num_notifications_++;
connection_type_ = type;
run_loop_->Quit();
}
void WaitForNotification() {
run_loop_->Run();
run_loop_ = std::make_unique<base::RunLoop>();
}
size_t num_notifications() const { return num_notifications_; }
network::mojom::ConnectionType connection_type() const {
return connection_type_;
}
private:
size_t num_notifications_;
raw_ptr<network::NetworkConnectionTracker> tracker_;
std::unique_ptr<base::RunLoop> run_loop_;
network::mojom::ConnectionType connection_type_;
SEQUENCE_CHECKER(sequence_checker_);
};
} // namespace
class NetworkConnectionTrackerBrowserTest : public InProcessBrowserTest {
public:
NetworkConnectionTrackerBrowserTest() = default;
~NetworkConnectionTrackerBrowserTest() override = default;
// Simulates a network connection change.
void SimulateNetworkChange(network::mojom::ConnectionType type) {
if (!content::IsInProcessNetworkService()) {
mojo::Remote<network::mojom::NetworkServiceTest> network_service_test;
content::GetNetworkService()->BindTestInterfaceForTesting(
network_service_test.BindNewPipeAndPassReceiver());
base::RunLoop run_loop;
network_service_test->SimulateNetworkChange(
type,
base::BindOnce([](base::RunLoop* run_loop) { run_loop->Quit(); },
base::Unretained(&run_loop)));
run_loop.Run();
return;
}
net::NetworkChangeNotifier::NotifyObserversOfNetworkChangeForTests(
net::NetworkChangeNotifier::ConnectionType(type));
}
private:
};
// Basic test to make sure NetworkConnectionTracker is set up.
IN_PROC_BROWSER_TEST_F(NetworkConnectionTrackerBrowserTest,
NetworkConnectionTracker) {
// NetworkService on ChromeOS doesn't yet have a NetworkChangeManager
// implementation. OSX uses a separate binary for service processes and
// browser test fixture doesn't have NetworkServiceTest mojo code.
#if !BUILDFLAG(IS_CHROMEOS) && !BUILDFLAG(IS_MAC)
network::NetworkConnectionTracker* tracker =
content::GetNetworkConnectionTracker();
EXPECT_NE(nullptr, tracker);
// Issue a GetConnectionType() request to make sure NetworkService has been
// started up. This way, NetworkService will receive the broadcast when
// SimulateNetworkChange() is called.
base::RunLoop run_loop;
network::mojom::ConnectionType ignored_type;
bool sync = tracker->GetConnectionType(
&ignored_type,
base::BindOnce(
[](base::RunLoop* run_loop, network::mojom::ConnectionType type) {
run_loop->Quit();
},
base::Unretained(&run_loop)));
if (!sync)
run_loop.Run();
TestNetworkConnectionObserver network_connection_observer(tracker);
SimulateNetworkChange(network::mojom::ConnectionType::CONNECTION_3G);
network_connection_observer.WaitForNotification();
EXPECT_EQ(network::mojom::ConnectionType::CONNECTION_3G,
network_connection_observer.connection_type());
base::RunLoop().RunUntilIdle();
EXPECT_EQ(1u, network_connection_observer.num_notifications());
#endif
}
// Simulates a network service crash, and ensures that network change manager
// binds to the restarted network service.
IN_PROC_BROWSER_TEST_F(NetworkConnectionTrackerBrowserTest,
SimulateNetworkServiceCrash) {
// NetworkService on ChromeOS doesn't yet have a NetworkChangeManager
// implementation. OSX uses a separate binary for service processes and
// browser test fixture doesn't have NetworkServiceTest mojo code.
#if !BUILDFLAG(IS_CHROMEOS) && !BUILDFLAG(IS_MAC)
// Out-of-process network service is not enabled, so network service's crash
// and restart aren't applicable.
if (!content::IsOutOfProcessNetworkService())
return;
network::NetworkConnectionTracker* tracker =
content::GetNetworkConnectionTracker();
EXPECT_NE(nullptr, tracker);
// Issue a GetConnectionType() request to make sure NetworkService has been
// started up. This way, NetworkService will receive the broadcast when
// SimulateNetworkChange() is called.
{
base::RunLoop run_loop;
network::mojom::ConnectionType ignored_type;
bool sync = tracker->GetConnectionType(
&ignored_type,
base::BindOnce(
[](base::RunLoop* run_loop, network::mojom::ConnectionType type) {
run_loop->Quit();
},
base::Unretained(&run_loop)));
if (!sync)
run_loop.Run();
}
TestNetworkConnectionObserver network_connection_observer(tracker);
SimulateNetworkChange(network::mojom::ConnectionType::CONNECTION_3G);
network_connection_observer.WaitForNotification();
EXPECT_EQ(network::mojom::ConnectionType::CONNECTION_3G,
network_connection_observer.connection_type());
// Wait a bit longer to make sure only 1 notification is received and that
// there is no duplicate notification.
base::RunLoop().RunUntilIdle();
EXPECT_EQ(1u, network_connection_observer.num_notifications());
SimulateNetworkServiceCrash();
// Issue a GetConnectionType() request to make sure NetworkService has been
// started up. This way, NetworkService will receive the broadcast when
// SimulateNetworkChange() is called.
{
base::RunLoop run_loop;
network::mojom::ConnectionType ignored_type;
bool sync = tracker->GetConnectionType(
&ignored_type,
base::BindOnce(
[](base::RunLoop* run_loop, network::mojom::ConnectionType type) {
run_loop->Quit();
},
base::Unretained(&run_loop)));
if (!sync)
run_loop.Run();
}
SimulateNetworkChange(network::mojom::ConnectionType::CONNECTION_2G);
network_connection_observer.WaitForNotification();
EXPECT_EQ(network::mojom::ConnectionType::CONNECTION_2G,
network_connection_observer.connection_type());
// Wait a bit longer to make sure only 2 notifications are received.
base::RunLoop().RunUntilIdle();
EXPECT_EQ(2u, network_connection_observer.num_notifications());
#endif
}
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