volume_controller_browsertest_chromeos.cc revision 558790d6acca3451cf3a6b497803a5f07d0bec58 
1// Copyright (c) 2012 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 "ash/ash_switches.h"
6#include "base/memory/scoped_ptr.h"
7#include "chrome/browser/browser_process.h"
8#include "chrome/browser/ui/ash/volume_controller_chromeos.h"
9#include "chrome/test/base/in_process_browser_test.h"
10#include "chromeos/audio/cras_audio_handler.h"
11#include "ui/base/accelerators/accelerator.h"
12
13namespace {
14
15class VolumeControllerTest : public InProcessBrowserTest {
16 public:
17  VolumeControllerTest() {}
18  virtual ~VolumeControllerTest() {}
19
20  virtual void SetUpOnMainThread() OVERRIDE {
21    CHECK(ash::switches::UseNewAudioHandler());
22    volume_controller_.reset(new VolumeController());
23    audio_handler_ = chromeos::CrasAudioHandler::Get();
24  }
25
26 protected:
27  void VolumeMute() {
28    volume_controller_->HandleVolumeMute(ui::Accelerator());
29  }
30
31  void VolumeUp() {
32    volume_controller_->HandleVolumeUp(ui::Accelerator());
33  }
34
35  void VolumeDown() {
36    volume_controller_->HandleVolumeDown(ui::Accelerator());
37  }
38
39  chromeos::CrasAudioHandler* audio_handler_;  // Not owned.
40
41 private:
42  scoped_ptr<VolumeController> volume_controller_;
43
44  DISALLOW_COPY_AND_ASSIGN(VolumeControllerTest);
45};
46
47IN_PROC_BROWSER_TEST_F(VolumeControllerTest, VolumeUpAndDown) {
48  // Set initial value as 50%
49  const int kInitVolume = 50;
50  audio_handler_->SetOutputVolumePercent(kInitVolume);
51
52  EXPECT_EQ(audio_handler_->GetOutputVolumePercent(), kInitVolume);
53
54  VolumeUp();
55  EXPECT_LT(kInitVolume, audio_handler_->GetOutputVolumePercent());
56  VolumeDown();
57  EXPECT_EQ(kInitVolume, audio_handler_->GetOutputVolumePercent());
58  VolumeDown();
59  EXPECT_GT(kInitVolume, audio_handler_->GetOutputVolumePercent());
60}
61
62IN_PROC_BROWSER_TEST_F(VolumeControllerTest, VolumeDownToZero) {
63  // Setting to very small volume.
64  audio_handler_->SetOutputVolumePercent(1);
65
66  VolumeDown();
67  EXPECT_EQ(0, audio_handler_->GetOutputVolumePercent());
68  VolumeDown();
69  EXPECT_EQ(0, audio_handler_->GetOutputVolumePercent());
70  VolumeUp();
71  EXPECT_LT(0, audio_handler_->GetOutputVolumePercent());
72}
73
74IN_PROC_BROWSER_TEST_F(VolumeControllerTest, VolumeUpTo100) {
75  // Setting to almost max
76  audio_handler_->SetOutputVolumePercent(99);
77
78  VolumeUp();
79  EXPECT_EQ(100, audio_handler_->GetOutputVolumePercent());
80  VolumeUp();
81  EXPECT_EQ(100, audio_handler_->GetOutputVolumePercent());
82  VolumeDown();
83  EXPECT_GT(100, audio_handler_->GetOutputVolumePercent());
84}
85
86IN_PROC_BROWSER_TEST_F(VolumeControllerTest, Mutes) {
87  ASSERT_FALSE(audio_handler_->IsOutputMuted());
88  const int initial_volume = audio_handler_->GetOutputVolumePercent();
89
90  VolumeMute();
91  EXPECT_TRUE(audio_handler_->IsOutputMuted());
92
93  // Further mute buttons doesn't have effects.
94  VolumeMute();
95  EXPECT_TRUE(audio_handler_->IsOutputMuted());
96
97  // Right after the volume up after set_mute recovers to original volume.
98  VolumeUp();
99  EXPECT_FALSE(audio_handler_->IsOutputMuted());
100  EXPECT_EQ(initial_volume, audio_handler_->GetOutputVolumePercent());
101
102  VolumeMute();
103  // After the volume down, the volume goes down to zero explicitly.
104  VolumeDown();
105  EXPECT_TRUE(audio_handler_->IsOutputMuted());
106  EXPECT_EQ(0, audio_handler_->GetOutputVolumePercent());
107
108  // Thus, further VolumeUp doesn't recover the volume, it's just slightly
109  // bigger than 0.
110  VolumeUp();
111  EXPECT_LT(0, audio_handler_->GetOutputVolumePercent());
112  EXPECT_GT(initial_volume, audio_handler_->GetOutputVolumePercent());
113}
114
115}  // namespace
116