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// Copyright (c) 2013 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/power/power_manager_handler.h"
#include <set>
#include <string>
#include "base/command_line.h"
#include "base/memory/scoped_ptr.h"
#include "base/message_loop.h"
#include "chromeos/dbus/dbus_thread_manager.h"
#include "testing/gtest/include/gtest/gtest.h"
#include "third_party/cros_system_api/dbus/service_constants.h"
namespace chromeos {
namespace {
void ValidatePowerSupplyStatus(const PowerSupplyStatus& status) {
EXPECT_TRUE(status.battery_is_present);
EXPECT_GT(status.battery_percentage, 0.0);
if (status.battery_state == PowerSupplyStatus::DISCHARGING) {
EXPECT_GT(status.battery_seconds_to_empty, 0);
EXPECT_EQ(status.battery_seconds_to_full, 0);
} else {
EXPECT_GT(status.battery_seconds_to_full, 0);
EXPECT_EQ(status.battery_seconds_to_empty, 0);
}
}
class TestObserver : public PowerManagerHandler::Observer {
public:
TestObserver() : power_changed_count_(0) {
}
virtual ~TestObserver() {}
virtual void OnPowerStatusChanged(
const PowerSupplyStatus& power_status) OVERRIDE {
++power_changed_count_;
ValidatePowerSupplyStatus(power_status);
}
int power_changed_count() const { return power_changed_count_; }
private:
int power_changed_count_;
DISALLOW_COPY_AND_ASSIGN(TestObserver);
};
} // namespace
class PowerManagerHandlerTest : public testing::Test {
public:
PowerManagerHandlerTest() {}
virtual ~PowerManagerHandlerTest() {}
virtual void SetUp() OVERRIDE {
// Initialize DBusThreadManager with a stub implementation.
DBusThreadManager::InitializeWithStub();
power_handler_.reset(new PowerManagerHandler);
test_observer_.reset(new TestObserver);
power_handler_->AddObserver(test_observer_.get());
}
virtual void TearDown() OVERRIDE {
power_handler_.reset();
test_observer_.reset();
DBusThreadManager::Shutdown();
}
protected:
base::MessageLoopForUI message_loop_;
scoped_ptr<PowerManagerHandler> power_handler_;
scoped_ptr<TestObserver> test_observer_;
private:
DISALLOW_COPY_AND_ASSIGN(PowerManagerHandlerTest);
};
TEST_F(PowerManagerHandlerTest, PowerManagerInitializeAndUpdate) {
// Test that the initial power supply state should be acquired after
// PowerManagerHandler is instantiated. This depends on
// PowerManagerClientStubImpl, which responds to power status update
// requests, pretends there is a battery present, and generate some
// valid power supply status data.
message_loop_.RunUntilIdle();
EXPECT_EQ(test_observer_->power_changed_count(), 0);
PowerSupplyStatus init_status = power_handler_->GetPowerSupplyStatus();
ValidatePowerSupplyStatus(init_status);
// Test RequestUpdate, test_obsever_ should be notified for power suuply
// status change.
power_handler_->RequestStatusUpdate();
message_loop_.RunUntilIdle();
EXPECT_GE(test_observer_->power_changed_count(), 1);
}
} // namespace chromeos
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