display_change_observer_chromeos_unittest.cc revision c5cede9ae108bb15f6b7a8aea21c7e1fefa2834c 
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 "ash/display/display_change_observer_chromeos.h"
6
7#include "ash/display/display_info.h"
8#include "base/memory/scoped_vector.h"
9#include "testing/gtest/include/gtest/gtest.h"
10#include "ui/display/chromeos/display_configurator.h"
11#include "ui/display/chromeos/display_mode.h"
12#include "ui/display/chromeos/test/test_display_snapshot.h"
13
14using ui::DisplayConfigurator;
15
16typedef testing::Test DisplayChangeObserverTest;
17
18namespace ash {
19
20TEST_F(DisplayChangeObserverTest, GetDisplayModeList) {
21  ScopedVector<const ui::DisplayMode> modes;
22  modes.push_back(new ui::DisplayMode(gfx::Size(1920, 1200), false, 60));
23
24  // All non-interlaced (as would be seen with different refresh rates).
25  modes.push_back(new ui::DisplayMode(gfx::Size(1920, 1080), false, 80));
26  modes.push_back(new ui::DisplayMode(gfx::Size(1920, 1080), false, 70));
27  modes.push_back(new ui::DisplayMode(gfx::Size(1920, 1080), false, 60));
28
29  // Interlaced vs non-interlaced.
30  modes.push_back(new ui::DisplayMode(gfx::Size(1280, 720), true, 60));
31  modes.push_back(new ui::DisplayMode(gfx::Size(1280, 720), false, 60));
32
33  // Interlaced only.
34  modes.push_back(new ui::DisplayMode(gfx::Size(1024, 768), true, 70));
35  modes.push_back(new ui::DisplayMode(gfx::Size(1024, 768), true, 60));
36
37  // Mixed.
38  modes.push_back(new ui::DisplayMode(gfx::Size(1024, 600), true, 60));
39  modes.push_back(new ui::DisplayMode(gfx::Size(1024, 600), false, 70));
40  modes.push_back(new ui::DisplayMode(gfx::Size(1024, 600), false, 60));
41
42  // Just one interlaced mode.
43  modes.push_back(new ui::DisplayMode(gfx::Size(640, 480), true, 60));
44
45  ui::TestDisplaySnapshot display_snapshot;
46  display_snapshot.set_modes(modes.get());
47  DisplayConfigurator::DisplayState output;
48  output.display = &display_snapshot;
49
50  std::vector<DisplayMode> display_modes =
51      DisplayChangeObserver::GetDisplayModeList(output);
52  ASSERT_EQ(6u, display_modes.size());
53  EXPECT_EQ("1920x1200", display_modes[0].size.ToString());
54  EXPECT_FALSE(display_modes[0].interlaced);
55  EXPECT_EQ(display_modes[0].refresh_rate, 60);
56
57  EXPECT_EQ("1920x1080", display_modes[1].size.ToString());
58  EXPECT_FALSE(display_modes[1].interlaced);
59  EXPECT_EQ(display_modes[1].refresh_rate, 80);
60
61  EXPECT_EQ("1280x720", display_modes[2].size.ToString());
62  EXPECT_FALSE(display_modes[2].interlaced);
63  EXPECT_EQ(display_modes[2].refresh_rate, 60);
64
65  EXPECT_EQ("1024x768", display_modes[3].size.ToString());
66  EXPECT_TRUE(display_modes[3].interlaced);
67  EXPECT_EQ(display_modes[3].refresh_rate, 70);
68
69  EXPECT_EQ("1024x600", display_modes[4].size.ToString());
70  EXPECT_FALSE(display_modes[4].interlaced);
71  EXPECT_EQ(display_modes[4].refresh_rate, 70);
72
73  EXPECT_EQ("640x480", display_modes[5].size.ToString());
74  EXPECT_TRUE(display_modes[5].interlaced);
75  EXPECT_EQ(display_modes[5].refresh_rate, 60);
76
77  // Outputs without any modes shouldn't cause a crash.
78  modes.clear();
79  display_snapshot.set_modes(modes.get());
80
81  display_modes = DisplayChangeObserver::GetDisplayModeList(output);
82  EXPECT_EQ(0u, display_modes.size());
83}
84
85}  // namespace ash
86