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// Copyright 2015 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 "chromeos/dbus/fake_power_manager_client.h"
#include "base/basictypes.h"
#include "base/macros.h"
#include "base/message_loop/message_loop.h"
#include "base/run_loop.h"
#include "testing/gtest/include/gtest/gtest.h"
namespace chromeos {
namespace {
const double kInitialBatteryPercent = 85;
const double kUpdatedBatteryPercent = 70;
const power_manager::PowerSupplyProperties_BatteryState kInitialBatteryState =
power_manager::PowerSupplyProperties_BatteryState_DISCHARGING;
const power_manager::PowerSupplyProperties_ExternalPower kInitialExternalPower =
power_manager::PowerSupplyProperties_ExternalPower_USB;
class TestObserver : public PowerManagerClient::Observer {
public:
TestObserver() : num_power_changed_(0) {}
~TestObserver() override {}
const power_manager::PowerSupplyProperties& props() const { return props_; }
int num_power_changed() const { return num_power_changed_; }
void ClearProps() { props_.Clear(); }
void PowerChanged(
const power_manager::PowerSupplyProperties& proto) override {
props_ = proto;
++num_power_changed_;
}
private:
int num_power_changed_;
power_manager::PowerSupplyProperties props_;
DISALLOW_COPY_AND_ASSIGN(TestObserver);
};
void SetTestProperties(power_manager::PowerSupplyProperties* props) {
props->set_battery_percent(kInitialBatteryPercent);
props->set_is_calculating_battery_time(true);
props->set_battery_state(kInitialBatteryState);
props->set_external_power(kInitialExternalPower);
}
} // namespace
TEST(FakePowerManagerClientTest, UpdatePowerPropertiesTest) {
// Checking to verify when UpdatePowerProperties is called,
// |props_| values are updated.
FakePowerManagerClient client;
power_manager::PowerSupplyProperties props;
SetTestProperties(&props);
client.UpdatePowerProperties(props);
EXPECT_EQ(kInitialBatteryPercent, client.props().battery_percent());
EXPECT_TRUE(client.props().is_calculating_battery_time());
EXPECT_EQ(kInitialBatteryState, client.props().battery_state());
EXPECT_EQ(kInitialExternalPower, client.props().external_power());
// Test if when the values are changed, the correct data is set in the
// FakePowerManagerClient.
props = client.props();
props.set_battery_percent(kUpdatedBatteryPercent);
client.UpdatePowerProperties(props);
EXPECT_EQ(kUpdatedBatteryPercent, client.props().battery_percent());
EXPECT_TRUE(client.props().is_calculating_battery_time());
EXPECT_EQ(kInitialBatteryState, client.props().battery_state());
EXPECT_EQ(kInitialExternalPower, client.props().external_power());
};
TEST(FakePowerManagerClientTest, NotifyObserversTest) {
FakePowerManagerClient client;
TestObserver test_observer;
// Test adding observer.
client.AddObserver(&test_observer);
EXPECT_TRUE(client.HasObserver(&test_observer));
// Test if NotifyObservers() sends the correct values to |observer|.
// Check number of times NotifyObservers() is called.
power_manager::PowerSupplyProperties props;
SetTestProperties(&props);
client.UpdatePowerProperties(props);
EXPECT_EQ(kInitialBatteryPercent, test_observer.props().battery_percent());
EXPECT_TRUE(test_observer.props().is_calculating_battery_time());
EXPECT_EQ(kInitialBatteryState, test_observer.props().battery_state());
EXPECT_EQ(kInitialExternalPower, test_observer.props().external_power());
EXPECT_EQ(1, test_observer.num_power_changed());
// Test if RequestStatusUpdate() will propagate the data to the observer.
// Check number of times NotifyObservers is called.
// RequestStatusUpdate posts to the current message loop. This is
// necessary because we want to make sure that NotifyObservers() is
// called as a result of RequestStatusUpdate().
base::MessageLoopForUI message_loop;
test_observer.ClearProps();
client.RequestStatusUpdate();
base::RunLoop().RunUntilIdle();
EXPECT_EQ(kInitialBatteryPercent, test_observer.props().battery_percent());
EXPECT_TRUE(test_observer.props().is_calculating_battery_time());
EXPECT_EQ(kInitialBatteryState, test_observer.props().battery_state());
EXPECT_EQ(kInitialExternalPower, test_observer.props().external_power());
EXPECT_EQ(2, test_observer.num_power_changed());
// Check when values are changed, the correct values are propagated to the
// observer
props = client.props();
props.set_battery_percent(kUpdatedBatteryPercent);
props.set_external_power(
power_manager::PowerSupplyProperties_ExternalPower_AC);
client.UpdatePowerProperties(props);
EXPECT_EQ(kUpdatedBatteryPercent, test_observer.props().battery_percent());
EXPECT_TRUE(test_observer.props().is_calculating_battery_time());
EXPECT_EQ(kInitialBatteryState, test_observer.props().battery_state());
EXPECT_EQ(power_manager::PowerSupplyProperties_ExternalPower_AC,
test_observer.props().external_power());
EXPECT_EQ(3, test_observer.num_power_changed());
// Test removing observer.
client.RemoveObserver(&test_observer);
EXPECT_FALSE(client.HasObserver(&test_observer));
};
} // namespace chromeos
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