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// Copyright 2016 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "chrome/browser/ash/net/network_throttling_observer.h"
#include <memory>
#include "base/test/task_environment.h"
#include "base/values.h"
#include "chrome/common/pref_names.h"
#include "chromeos/ash/components/dbus/shill/shill_manager_client.h"
#include "chromeos/ash/components/network/network_handler_test_helper.h"
#include "components/prefs/pref_registry_simple.h"
#include "components/prefs/testing_pref_service.h"
#include "testing/gtest/include/gtest/gtest.h"
namespace ash {
namespace test {
class NetworkThrottlingObserverTest : public ::testing::Test {
public:
NetworkThrottlingObserverTest() {
local_state_ = std::make_unique<TestingPrefServiceSimple>();
local_state_->registry()->RegisterDictionaryPref(
prefs::kNetworkThrottlingEnabled);
observer_ = std::make_unique<NetworkThrottlingObserver>(local_state_.get());
}
NetworkThrottlingObserverTest(const NetworkThrottlingObserverTest&) = delete;
NetworkThrottlingObserverTest& operator=(
const NetworkThrottlingObserverTest&) = delete;
~NetworkThrottlingObserverTest() override {
observer_.reset();
local_state_.reset();
}
TestingPrefServiceSimple* local_state() { return local_state_.get(); }
const ShillManagerClient::NetworkThrottlingStatus&
GetNetworkThrottlingStatus() {
return network_handler_test_helper_.manager_test()
->GetNetworkThrottlingStatus();
}
private:
base::test::SingleThreadTaskEnvironment task_environment_;
NetworkHandlerTestHelper network_handler_test_helper_;
std::unique_ptr<TestingPrefServiceSimple> local_state_;
std::unique_ptr<NetworkThrottlingObserver> observer_;
};
TEST_F(NetworkThrottlingObserverTest, ThrottlingChangeCallsShill) {
// Test that a change in the throttling policy value leads to
// shill_manager_client being called.
constexpr bool enabled = true;
constexpr uint32_t upload_rate = 1200;
constexpr uint32_t download_rate = 2000;
auto updated_throttling_policy =
base::Value::Dict()
.Set("enabled", enabled)
.Set("upload_rate_kbits", static_cast<int>(upload_rate))
.Set("download_rate_kbits", static_cast<int>(download_rate));
// Make sure throttling is disabled just before setting preferece.
EXPECT_FALSE(GetNetworkThrottlingStatus().enabled);
// Setting the preference should update the network throttling.
local_state()->SetDict(prefs::kNetworkThrottlingEnabled,
std::move(updated_throttling_policy));
base::RunLoop().RunUntilIdle();
{
const auto& status = GetNetworkThrottlingStatus();
EXPECT_TRUE(status.enabled);
EXPECT_EQ(upload_rate, status.upload_rate_kbits);
EXPECT_EQ(download_rate, status.download_rate_kbits);
}
// Clearing the preference should disable throttling
local_state()->ClearPref(prefs::kNetworkThrottlingEnabled);
base::RunLoop().RunUntilIdle();
EXPECT_FALSE(GetNetworkThrottlingStatus().enabled);
}
} // namespace test
} // namespace ash
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