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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 "components/metrics/net/network_metrics_provider.h"
#include <memory>
#include "base/functional/callback.h"
#include "base/memory/ptr_util.h"
#include "base/run_loop.h"
#include "build/build_config.h"
#include "build/chromeos_buildflags.h"
#include "services/network/test/test_network_connection_tracker.h"
#include "testing/gtest/include/gtest/gtest.h"
#include "third_party/metrics_proto/system_profile.pb.h"
#if BUILDFLAG(IS_CHROMEOS_ASH)
#include "chromeos/ash/components/network/network_handler_test_helper.h"
#endif // BUILDFLAG(IS_CHROMEOS_ASH)
#if BUILDFLAG(IS_IOS)
#include "ios/web/public/test/web_task_environment.h"
using MetricsTaskEnvironment = web::WebTaskEnvironment;
#else // !BUILDFLAG(IS_IOS)
#include "content/public/test/browser_task_environment.h"
using MetricsTaskEnvironment = content::BrowserTaskEnvironment;
#endif // BUILDFLAG(IS_IOS)
namespace metrics {
class NetworkMetricsProviderTest : public testing::Test {
public:
NetworkMetricsProviderTest(const NetworkMetricsProviderTest&) = delete;
NetworkMetricsProviderTest& operator=(const NetworkMetricsProviderTest&) =
delete;
protected:
NetworkMetricsProviderTest()
: task_environment_(MetricsTaskEnvironment::IO_MAINLOOP) {}
~NetworkMetricsProviderTest() override {}
private:
MetricsTaskEnvironment task_environment_;
#if BUILDFLAG(IS_CHROMEOS_ASH)
ash::NetworkHandlerTestHelper network_handler_test_helper_;
#endif // BUILDFLAG(IS_CHROMEOS_ASH)
};
// Verifies that the effective connection type is correctly set.
TEST_F(NetworkMetricsProviderTest, EffectiveConnectionType) {
NetworkMetricsProvider network_metrics_provider(
network::TestNetworkConnectionTracker::CreateAsyncGetter());
base::RunLoop().RunUntilIdle();
EXPECT_EQ(net::EFFECTIVE_CONNECTION_TYPE_UNKNOWN,
network_metrics_provider.effective_connection_type_);
EXPECT_EQ(net::EFFECTIVE_CONNECTION_TYPE_UNKNOWN,
network_metrics_provider.min_effective_connection_type_);
EXPECT_EQ(net::EFFECTIVE_CONNECTION_TYPE_UNKNOWN,
network_metrics_provider.max_effective_connection_type_);
SystemProfileProto system_profile;
network_metrics_provider.ProvideSystemProfileMetrics(&system_profile);
EXPECT_EQ(SystemProfileProto::Network::EFFECTIVE_CONNECTION_TYPE_UNKNOWN,
system_profile.network().min_effective_connection_type());
EXPECT_EQ(SystemProfileProto::Network::EFFECTIVE_CONNECTION_TYPE_UNKNOWN,
system_profile.network().max_effective_connection_type());
network_metrics_provider.OnEffectiveConnectionTypeChanged(
net::EFFECTIVE_CONNECTION_TYPE_2G);
EXPECT_EQ(net::EFFECTIVE_CONNECTION_TYPE_2G,
network_metrics_provider.effective_connection_type_);
EXPECT_EQ(net::EFFECTIVE_CONNECTION_TYPE_2G,
network_metrics_provider.min_effective_connection_type_);
EXPECT_EQ(net::EFFECTIVE_CONNECTION_TYPE_2G,
network_metrics_provider.max_effective_connection_type_);
network_metrics_provider.ProvideSystemProfileMetrics(&system_profile);
EXPECT_EQ(SystemProfileProto::Network::EFFECTIVE_CONNECTION_TYPE_2G,
system_profile.network().min_effective_connection_type());
EXPECT_EQ(SystemProfileProto::Network::EFFECTIVE_CONNECTION_TYPE_2G,
system_profile.network().max_effective_connection_type());
network_metrics_provider.OnEffectiveConnectionTypeChanged(
net::EFFECTIVE_CONNECTION_TYPE_SLOW_2G);
EXPECT_EQ(net::EFFECTIVE_CONNECTION_TYPE_SLOW_2G,
network_metrics_provider.effective_connection_type_);
EXPECT_EQ(net::EFFECTIVE_CONNECTION_TYPE_SLOW_2G,
network_metrics_provider.min_effective_connection_type_);
EXPECT_EQ(net::EFFECTIVE_CONNECTION_TYPE_2G,
network_metrics_provider.max_effective_connection_type_);
network_metrics_provider.ProvideSystemProfileMetrics(&system_profile);
// Effective connection type changed from 2G to SLOW_2G during the lifetime of
// the log. Minimum value of ECT must be different from the maximum value.
EXPECT_EQ(SystemProfileProto::Network::EFFECTIVE_CONNECTION_TYPE_SLOW_2G,
system_profile.network().min_effective_connection_type());
EXPECT_EQ(SystemProfileProto::Network::EFFECTIVE_CONNECTION_TYPE_2G,
system_profile.network().max_effective_connection_type());
// Getting the system profile again should return the current effective
// connection type.
network_metrics_provider.ProvideSystemProfileMetrics(&system_profile);
EXPECT_EQ(SystemProfileProto::Network::EFFECTIVE_CONNECTION_TYPE_SLOW_2G,
system_profile.network().min_effective_connection_type());
EXPECT_EQ(SystemProfileProto::Network::EFFECTIVE_CONNECTION_TYPE_SLOW_2G,
system_profile.network().max_effective_connection_type());
}
// Verifies that the effective connection type is not set to UNKNOWN when there
// is a change in the connection type.
TEST_F(NetworkMetricsProviderTest, ECTAmbiguousOnConnectionTypeChange) {
NetworkMetricsProvider network_metrics_provider(
network::TestNetworkConnectionTracker::CreateAsyncGetter());
base::RunLoop().RunUntilIdle();
EXPECT_EQ(net::EFFECTIVE_CONNECTION_TYPE_UNKNOWN,
network_metrics_provider.effective_connection_type_);
EXPECT_EQ(net::EFFECTIVE_CONNECTION_TYPE_UNKNOWN,
network_metrics_provider.min_effective_connection_type_);
EXPECT_EQ(net::EFFECTIVE_CONNECTION_TYPE_UNKNOWN,
network_metrics_provider.max_effective_connection_type_);
network_metrics_provider.OnEffectiveConnectionTypeChanged(
net::EFFECTIVE_CONNECTION_TYPE_2G);
EXPECT_EQ(net::EFFECTIVE_CONNECTION_TYPE_2G,
network_metrics_provider.effective_connection_type_);
EXPECT_EQ(net::EFFECTIVE_CONNECTION_TYPE_2G,
network_metrics_provider.min_effective_connection_type_);
EXPECT_EQ(net::EFFECTIVE_CONNECTION_TYPE_2G,
network_metrics_provider.max_effective_connection_type_);
// There is no change in the connection type. Effective connection types
// should be reported as 2G.
SystemProfileProto system_profile;
network_metrics_provider.ProvideSystemProfileMetrics(&system_profile);
EXPECT_EQ(SystemProfileProto::Network::EFFECTIVE_CONNECTION_TYPE_2G,
system_profile.network().min_effective_connection_type());
EXPECT_EQ(SystemProfileProto::Network::EFFECTIVE_CONNECTION_TYPE_2G,
system_profile.network().max_effective_connection_type());
// Even with change in the connection type, effective connection types
// should be reported as 2G.
network_metrics_provider.OnConnectionChanged(
network::mojom::ConnectionType::CONNECTION_2G);
network_metrics_provider.ProvideSystemProfileMetrics(&system_profile);
EXPECT_EQ(SystemProfileProto::Network::EFFECTIVE_CONNECTION_TYPE_2G,
system_profile.network().min_effective_connection_type());
EXPECT_EQ(SystemProfileProto::Network::EFFECTIVE_CONNECTION_TYPE_2G,
system_profile.network().max_effective_connection_type());
}
// Verifies that the effective connection type is not set to UNKNOWN when the
// connection type is OFFLINE.
TEST_F(NetworkMetricsProviderTest, ECTNotAmbiguousOnUnknownOrOffline) {
for (net::EffectiveConnectionType force_ect :
{net::EFFECTIVE_CONNECTION_TYPE_UNKNOWN,
net::EFFECTIVE_CONNECTION_TYPE_OFFLINE}) {
NetworkMetricsProvider network_metrics_provider(
network::TestNetworkConnectionTracker::CreateAsyncGetter());
base::RunLoop().RunUntilIdle();
network_metrics_provider.OnEffectiveConnectionTypeChanged(
net::EFFECTIVE_CONNECTION_TYPE_2G);
SystemProfileProto system_profile;
network_metrics_provider.ProvideSystemProfileMetrics(&system_profile);
network_metrics_provider.OnEffectiveConnectionTypeChanged(force_ect);
network_metrics_provider.ProvideSystemProfileMetrics(&system_profile);
EXPECT_EQ(SystemProfileProto::Network::EFFECTIVE_CONNECTION_TYPE_2G,
system_profile.network().min_effective_connection_type());
EXPECT_EQ(SystemProfileProto::Network::EFFECTIVE_CONNECTION_TYPE_2G,
system_profile.network().max_effective_connection_type());
network_metrics_provider.OnEffectiveConnectionTypeChanged(
net::EFFECTIVE_CONNECTION_TYPE_4G);
network_metrics_provider.ProvideSystemProfileMetrics(&system_profile);
EXPECT_EQ(SystemProfileProto::Network::EFFECTIVE_CONNECTION_TYPE_4G,
system_profile.network().min_effective_connection_type());
EXPECT_EQ(SystemProfileProto::Network::EFFECTIVE_CONNECTION_TYPE_4G,
system_profile.network().max_effective_connection_type());
}
}
// Verifies that the connection type is ambiguous boolean is correctly set.
TEST_F(NetworkMetricsProviderTest, ConnectionTypeIsAmbiguous) {
NetworkMetricsProvider network_metrics_provider(
network::TestNetworkConnectionTracker::CreateAsyncGetter());
EXPECT_EQ(network::mojom::ConnectionType::CONNECTION_UNKNOWN,
network_metrics_provider.connection_type_);
EXPECT_FALSE(network_metrics_provider.connection_type_is_ambiguous_);
EXPECT_FALSE(
network_metrics_provider.network_connection_tracker_initialized_);
// When a connection type change callback is received, network change notifier
// should be marked as initialized.
network_metrics_provider.OnConnectionChanged(
network::mojom::ConnectionType::CONNECTION_2G);
EXPECT_EQ(network::mojom::ConnectionType::CONNECTION_2G,
network_metrics_provider.connection_type_);
// Connection type should not be marked as ambiguous when a delayed connection
// type change callback is received due to delayed initialization of the
// network change notifier.
EXPECT_FALSE(network_metrics_provider.connection_type_is_ambiguous_);
EXPECT_TRUE(network_metrics_provider.network_connection_tracker_initialized_);
// On collection of the system profile, |connection_type_is_ambiguous_| should
// stay false, and |network_connection_tracker_initialized_| should remain
// true.
SystemProfileProto system_profile;
network_metrics_provider.ProvideSystemProfileMetrics(&system_profile);
EXPECT_FALSE(network_metrics_provider.connection_type_is_ambiguous_);
EXPECT_TRUE(network_metrics_provider.network_connection_tracker_initialized_);
EXPECT_FALSE(system_profile.network().connection_type_is_ambiguous());
EXPECT_EQ(SystemProfileProto::Network::CONNECTION_2G,
system_profile.network().connection_type());
network_metrics_provider.OnConnectionChanged(
network::mojom::ConnectionType::CONNECTION_3G);
EXPECT_TRUE(network_metrics_provider.connection_type_is_ambiguous_);
EXPECT_TRUE(network_metrics_provider.network_connection_tracker_initialized_);
// On collection of the system profile, |connection_type_is_ambiguous_| should
// be reset to false, and |network_connection_tracker_initialized_| should
// remain true.
network_metrics_provider.ProvideSystemProfileMetrics(&system_profile);
EXPECT_FALSE(network_metrics_provider.connection_type_is_ambiguous_);
EXPECT_TRUE(network_metrics_provider.network_connection_tracker_initialized_);
EXPECT_TRUE(system_profile.network().connection_type_is_ambiguous());
EXPECT_EQ(SystemProfileProto::Network::CONNECTION_3G,
system_profile.network().connection_type());
}
} // namespace metrics
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