1// Copyright 2013 The Chromium Authors. All rights reserved.
2// Use of this source code is governed by a BSD-style license that can be
3// found in the LICENSE file.
4
5#include "base/message_loop/message_loop.h"
6#include "base/test/power_monitor_test_base.h"
7#include "content/child/power_monitor_broadcast_source.h"
8#include "content/common/power_monitor_messages.h"
9#include "ipc/message_filter.h"
10#include "testing/gtest/include/gtest/gtest.h"
11
12namespace content {
13
14class PowerMonitorBroadcastSourceTest : public testing::Test {
15 protected:
16  PowerMonitorBroadcastSourceTest() {
17    power_monitor_source_ = new PowerMonitorBroadcastSource();
18    power_monitor_.reset(new base::PowerMonitor(
19        scoped_ptr<base::PowerMonitorSource>(power_monitor_source_)));
20  }
21  virtual ~PowerMonitorBroadcastSourceTest() {}
22
23  PowerMonitorBroadcastSource* source() { return power_monitor_source_; }
24  base::PowerMonitor* monitor() { return power_monitor_.get(); }
25
26  base::MessageLoop message_loop_;
27
28 private:
29  PowerMonitorBroadcastSource* power_monitor_source_;
30  scoped_ptr<base::PowerMonitor> power_monitor_;
31
32  DISALLOW_COPY_AND_ASSIGN(PowerMonitorBroadcastSourceTest);
33};
34
35TEST_F(PowerMonitorBroadcastSourceTest, PowerMessageReceiveBroadcast) {
36  IPC::MessageFilter* message_filter = source()->GetMessageFilter();
37
38  base::PowerMonitorTestObserver observer;
39  monitor()->AddObserver(&observer);
40
41  PowerMonitorMsg_Suspend suspend_msg;
42  PowerMonitorMsg_Resume resume_msg;
43
44  // Sending resume when not suspended should have no effect.
45  message_filter->OnMessageReceived(resume_msg);
46  message_loop_.RunUntilIdle();
47  EXPECT_EQ(observer.resumes(), 0);
48
49  // Pretend we suspended.
50  message_filter->OnMessageReceived(suspend_msg);
51  message_loop_.RunUntilIdle();
52  EXPECT_EQ(observer.suspends(), 1);
53
54  // Send a second suspend notification.  This should be suppressed.
55  message_filter->OnMessageReceived(suspend_msg);
56  message_loop_.RunUntilIdle();
57  EXPECT_EQ(observer.suspends(), 1);
58
59  // Pretend we were awakened.
60  message_filter->OnMessageReceived(resume_msg);
61  message_loop_.RunUntilIdle();
62  EXPECT_EQ(observer.resumes(), 1);
63
64  // Send a duplicate resume notification.  This should be suppressed.
65  message_filter->OnMessageReceived(resume_msg);
66  message_loop_.RunUntilIdle();
67  EXPECT_EQ(observer.resumes(), 1);
68
69  PowerMonitorMsg_PowerStateChange on_battery_msg(true);
70  PowerMonitorMsg_PowerStateChange off_battery_msg(false);
71
72  // Pretend the device has gone on battery power
73  message_filter->OnMessageReceived(on_battery_msg);
74  message_loop_.RunUntilIdle();
75  EXPECT_EQ(observer.power_state_changes(), 1);
76  EXPECT_EQ(observer.last_power_state(), true);
77
78  // Repeated indications the device is on battery power should be suppressed.
79  message_filter->OnMessageReceived(on_battery_msg);
80  message_loop_.RunUntilIdle();
81  EXPECT_EQ(observer.power_state_changes(), 1);
82
83  // Pretend the device has gone off battery power
84  message_filter->OnMessageReceived(off_battery_msg);
85  message_loop_.RunUntilIdle();
86  EXPECT_EQ(observer.power_state_changes(), 2);
87  EXPECT_EQ(observer.last_power_state(), false);
88
89  // Repeated indications the device is off battery power should be suppressed.
90  message_filter->OnMessageReceived(off_battery_msg);
91  message_loop_.RunUntilIdle();
92  EXPECT_EQ(observer.power_state_changes(), 2);
93}
94
95}  // namespace base
96