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// Copyright 2017 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "services/network/network_change_manager.h"
#include <algorithm>
#include <utility>
#include "base/macros.h"
#include "base/run_loop.h"
#include "base/test/task_environment.h"
#include "mojo/public/cpp/bindings/remote.h"
#include "net/base/network_change_notifier.h"
#include "services/network/public/mojom/network_change_manager.mojom.h"
#include "testing/gtest/include/gtest/gtest.h"
namespace network {
namespace {
// Type of notification expected in test.
enum NotificationType {
// Default value.
NONE,
// OnInitialConnectionType() notification.
INITIAL,
// OnNetworkChanged() notification.
NETWORK_CHANGED,
};
class TestNetworkChangeManagerClient
: public mojom::NetworkChangeManagerClient {
public:
explicit TestNetworkChangeManagerClient(
NetworkChangeManager* network_change_manager)
: num_network_changed_(0),
run_loop_(std::make_unique<base::RunLoop>()),
notification_type_to_wait_(NONE),
connection_type_(mojom::ConnectionType::CONNECTION_UNKNOWN) {
mojo::Remote<mojom::NetworkChangeManager> manager;
network_change_manager->AddReceiver(manager.BindNewPipeAndPassReceiver());
mojo::PendingRemote<mojom::NetworkChangeManagerClient> client_remote;
receiver_.Bind(client_remote.InitWithNewPipeAndPassReceiver());
manager->RequestNotifications(std::move(client_remote));
}
~TestNetworkChangeManagerClient() override {}
// NetworkChangeManagerClient implementation:
void OnInitialConnectionType(mojom::ConnectionType type) override {
connection_type_ = type;
if (notification_type_to_wait_ == INITIAL)
run_loop_->Quit();
}
void OnNetworkChanged(mojom::ConnectionType type) override {
num_network_changed_++;
connection_type_ = type;
if (notification_type_to_wait_ == NETWORK_CHANGED)
run_loop_->Quit();
}
// Returns the number of OnNetworkChanged() notifications.
size_t num_network_changed() const { return num_network_changed_; }
void WaitForNotification(NotificationType notification_type) {
notification_type_to_wait_ = notification_type;
run_loop_->Run();
run_loop_.reset(new base::RunLoop());
}
mojom::ConnectionType connection_type() const { return connection_type_; }
private:
size_t num_network_changed_;
std::unique_ptr<base::RunLoop> run_loop_;
NotificationType notification_type_to_wait_;
mojom::ConnectionType connection_type_;
mojo::Receiver<mojom::NetworkChangeManagerClient> receiver_{this};
DISALLOW_COPY_AND_ASSIGN(TestNetworkChangeManagerClient);
};
} // namespace
class NetworkChangeManagerTest : public testing::Test {
public:
NetworkChangeManagerTest()
: network_change_manager_(new NetworkChangeManager(
net::NetworkChangeNotifier::CreateMockIfNeeded())) {
network_change_manager_client_ =
std::make_unique<TestNetworkChangeManagerClient>(
network_change_manager_.get());
}
~NetworkChangeManagerTest() override {}
TestNetworkChangeManagerClient* network_change_manager_client() {
return network_change_manager_client_.get();
}
NetworkChangeManager* network_change_manager() const {
return network_change_manager_.get();
}
void SimulateNetworkChange(net::NetworkChangeNotifier::ConnectionType type) {
net::NetworkChangeNotifier::NotifyObserversOfNetworkChangeForTests(type);
}
private:
base::test::TaskEnvironment task_environment_;
std::unique_ptr<NetworkChangeManager> network_change_manager_;
std::unique_ptr<TestNetworkChangeManagerClient>
network_change_manager_client_;
DISALLOW_COPY_AND_ASSIGN(NetworkChangeManagerTest);
};
TEST_F(NetworkChangeManagerTest, ClientNotified) {
// Simulate a new network change.
SimulateNetworkChange(net::NetworkChangeNotifier::CONNECTION_3G);
network_change_manager_client()->WaitForNotification(NETWORK_CHANGED);
EXPECT_EQ(mojom::ConnectionType::CONNECTION_3G,
network_change_manager_client()->connection_type());
base::RunLoop().RunUntilIdle();
EXPECT_EQ(1u, network_change_manager_client()->num_network_changed());
}
TEST_F(NetworkChangeManagerTest, OneClientPipeBroken) {
auto network_change_manager_client2 =
std::make_unique<TestNetworkChangeManagerClient>(
network_change_manager());
// Simulate a network change.
SimulateNetworkChange(net::NetworkChangeNotifier::CONNECTION_WIFI);
network_change_manager_client()->WaitForNotification(NETWORK_CHANGED);
network_change_manager_client2->WaitForNotification(NETWORK_CHANGED);
EXPECT_EQ(mojom::ConnectionType::CONNECTION_WIFI,
network_change_manager_client2->connection_type());
base::RunLoop().RunUntilIdle();
EXPECT_EQ(2u, network_change_manager()->GetNumClientsForTesting());
EXPECT_EQ(1u, network_change_manager_client()->num_network_changed());
EXPECT_EQ(1u, network_change_manager_client2->num_network_changed());
network_change_manager_client2.reset();
base::RunLoop().RunUntilIdle();
EXPECT_EQ(1u, network_change_manager()->GetNumClientsForTesting());
// Simulate a second network change, and the remaining client should be
// notified.
SimulateNetworkChange(net::NetworkChangeNotifier::CONNECTION_2G);
network_change_manager_client()->WaitForNotification(NETWORK_CHANGED);
EXPECT_EQ(mojom::ConnectionType::CONNECTION_2G,
network_change_manager_client()->connection_type());
EXPECT_EQ(2u, network_change_manager_client()->num_network_changed());
}
TEST_F(NetworkChangeManagerTest, NewClientReceivesCurrentType) {
// Simulate a network change.
SimulateNetworkChange(net::NetworkChangeNotifier::CONNECTION_BLUETOOTH);
network_change_manager_client()->WaitForNotification(NETWORK_CHANGED);
EXPECT_EQ(mojom::ConnectionType::CONNECTION_BLUETOOTH,
network_change_manager_client()->connection_type());
base::RunLoop().RunUntilIdle();
// Register a new client after the network change and it should receive the
// up-to-date connection type.
TestNetworkChangeManagerClient network_change_manager_client2(
network_change_manager());
network_change_manager_client2.WaitForNotification(INITIAL);
EXPECT_EQ(mojom::ConnectionType::CONNECTION_BLUETOOTH,
network_change_manager_client2.connection_type());
}
TEST(NetworkChangeConnectionTypeTest, ConnectionTypeEnumMatch) {
for (int typeInt = net::NetworkChangeNotifier::CONNECTION_UNKNOWN;
typeInt != net::NetworkChangeNotifier::CONNECTION_LAST; typeInt++) {
mojom::ConnectionType mojoType = mojom::ConnectionType(typeInt);
switch (typeInt) {
case net::NetworkChangeNotifier::CONNECTION_UNKNOWN:
EXPECT_EQ(mojom::ConnectionType::CONNECTION_UNKNOWN, mojoType);
break;
case net::NetworkChangeNotifier::CONNECTION_ETHERNET:
EXPECT_EQ(mojom::ConnectionType::CONNECTION_ETHERNET, mojoType);
break;
case net::NetworkChangeNotifier::CONNECTION_WIFI:
EXPECT_EQ(mojom::ConnectionType::CONNECTION_WIFI, mojoType);
break;
case net::NetworkChangeNotifier::CONNECTION_2G:
EXPECT_EQ(mojom::ConnectionType::CONNECTION_2G, mojoType);
break;
case net::NetworkChangeNotifier::CONNECTION_3G:
EXPECT_EQ(mojom::ConnectionType::CONNECTION_3G, mojoType);
break;
case net::NetworkChangeNotifier::CONNECTION_4G:
EXPECT_EQ(mojom::ConnectionType::CONNECTION_4G, mojoType);
break;
case net::NetworkChangeNotifier::CONNECTION_NONE:
EXPECT_EQ(mojom::ConnectionType::CONNECTION_NONE, mojoType);
break;
case net::NetworkChangeNotifier::CONNECTION_BLUETOOTH:
EXPECT_EQ(mojom::ConnectionType::CONNECTION_BLUETOOTH, mojoType);
break;
case net::NetworkChangeNotifier::CONNECTION_5G:
EXPECT_EQ(mojom::ConnectionType::CONNECTION_5G, mojoType);
EXPECT_EQ(mojom::ConnectionType::CONNECTION_LAST, mojoType);
break;
}
}
}
} // namespace network
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