ash/display/display_change_observer_chromeos_unittest.cc

   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/test/test_display_snapshot.h"
  12 #include "ui/display/types/chromeos/display_mode.h"
  13
  14 using ui::DisplayConfigurator;
  15
  16 typedef testing::Test DisplayChangeObserverTest;
  17
  18 namespace ash {
  19
  20 TEST_F(DisplayChangeObserverTest, GetExternalDisplayModeList) {
  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::GetExternalDisplayModeList(output);
  52   ASSERT_EQ(6u, display_modes.size());
  53   EXPECT_EQ("640x480", display_modes[0].size.ToString());
  54   EXPECT_TRUE(display_modes[0].interlaced);
  55   EXPECT_EQ(display_modes[0].refresh_rate, 60);
  56
  57   EXPECT_EQ("1024x600", display_modes[1].size.ToString());
  58   EXPECT_FALSE(display_modes[1].interlaced);
  59   EXPECT_EQ(display_modes[1].refresh_rate, 70);
  60
  61   EXPECT_EQ("1024x768", display_modes[2].size.ToString());
  62   EXPECT_TRUE(display_modes[2].interlaced);
  63   EXPECT_EQ(display_modes[2].refresh_rate, 70);
  64
  65   EXPECT_EQ("1280x720", display_modes[3].size.ToString());
  66   EXPECT_FALSE(display_modes[3].interlaced);
  67   EXPECT_EQ(display_modes[3].refresh_rate, 60);
  68
  69   EXPECT_EQ("1920x1080", display_modes[4].size.ToString());
  70   EXPECT_FALSE(display_modes[4].interlaced);
  71   EXPECT_EQ(display_modes[4].refresh_rate, 80);
  72
  73   EXPECT_EQ("1920x1200", display_modes[5].size.ToString());
  74   EXPECT_FALSE(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::GetExternalDisplayModeList(output);
  82   EXPECT_EQ(0u, display_modes.size());
  83 }
  84
  85 TEST_F(DisplayChangeObserverTest, GetInternalDisplayModeList) {
  86   ScopedVector<const ui::DisplayMode> modes;
  87   // Data picked from peppy.
  88   modes.push_back(new ui::DisplayMode(gfx::Size(1366, 768), false, 60));
  89   modes.push_back(new ui::DisplayMode(gfx::Size(1024, 768), false, 60));
  90   modes.push_back(new ui::DisplayMode(gfx::Size(800, 600), false, 60));
  91   modes.push_back(new ui::DisplayMode(gfx::Size(600, 600), false, 56.2));
  92   modes.push_back(new ui::DisplayMode(gfx::Size(640, 480), false, 59.9));
  93
  94   ui::TestDisplaySnapshot display_snapshot;
  95   display_snapshot.set_modes(modes.get());
  96   display_snapshot.set_native_mode(modes[0]);
  97   DisplayConfigurator::DisplayState output;
  98   output.display = &display_snapshot;
  99
 100   DisplayInfo info;
 101   info.SetBounds(gfx::Rect(0, 0, 1366, 768));
 102
 103   std::vector<DisplayMode> display_modes =
 104       DisplayChangeObserver::GetInternalDisplayModeList(info, output);
 105   ASSERT_EQ(5u, display_modes.size());
 106   EXPECT_EQ("1366x768", display_modes[0].size.ToString());
 107   EXPECT_FALSE(display_modes[0].native);
 108   EXPECT_NEAR(display_modes[0].ui_scale, 0.5, 0.01);
 109   EXPECT_EQ(display_modes[0].refresh_rate, 60);
 110
 111   EXPECT_EQ("1366x768", display_modes[1].size.ToString());
 112   EXPECT_FALSE(display_modes[1].native);
 113   EXPECT_NEAR(display_modes[1].ui_scale, 0.6, 0.01);
 114   EXPECT_EQ(display_modes[1].refresh_rate, 60);
 115
 116   EXPECT_EQ("1366x768", display_modes[2].size.ToString());
 117   EXPECT_FALSE(display_modes[2].native);
 118   EXPECT_NEAR(display_modes[2].ui_scale, 0.75, 0.01);
 119   EXPECT_EQ(display_modes[2].refresh_rate, 60);
 120
 121   EXPECT_EQ("1366x768", display_modes[3].size.ToString());
 122   EXPECT_TRUE(display_modes[3].native);
 123   EXPECT_NEAR(display_modes[3].ui_scale, 1.0, 0.01);
 124   EXPECT_EQ(display_modes[3].refresh_rate, 60);
 125
 126   EXPECT_EQ("1366x768", display_modes[4].size.ToString());
 127   EXPECT_FALSE(display_modes[4].native);
 128   EXPECT_NEAR(display_modes[4].ui_scale, 1.125, 0.01);
 129   EXPECT_EQ(display_modes[4].refresh_rate, 60);
 130 }
 131
 132 TEST_F(DisplayChangeObserverTest, GetExternalDisplayModeList4K) {
 133   ScopedVector<const ui::DisplayMode> modes;
 134   modes.push_back(new ui::DisplayMode(gfx::Size(3840, 2160), false, 30));
 135   modes.push_back(new ui::DisplayMode(gfx::Size(1920, 1200), false, 60));
 136
 137   // All non-interlaced (as would be seen with different refresh rates).
 138   modes.push_back(new ui::DisplayMode(gfx::Size(1920, 1080), false, 80));
 139   modes.push_back(new ui::DisplayMode(gfx::Size(1920, 1080), false, 70));
 140   modes.push_back(new ui::DisplayMode(gfx::Size(1920, 1080), false, 60));
 141
 142   // Interlaced vs non-interlaced.
 143   modes.push_back(new ui::DisplayMode(gfx::Size(1280, 720), true, 60));
 144   modes.push_back(new ui::DisplayMode(gfx::Size(1280, 720), false, 60));
 145
 146   // Interlaced only.
 147   modes.push_back(new ui::DisplayMode(gfx::Size(1024, 768), true, 70));
 148   modes.push_back(new ui::DisplayMode(gfx::Size(1024, 768), true, 60));
 149
 150   // Mixed.
 151   modes.push_back(new ui::DisplayMode(gfx::Size(1024, 600), true, 60));
 152   modes.push_back(new ui::DisplayMode(gfx::Size(1024, 600), false, 70));
 153   modes.push_back(new ui::DisplayMode(gfx::Size(1024, 600), false, 60));
 154
 155   // Just one interlaced mode.
 156   modes.push_back(new ui::DisplayMode(gfx::Size(640, 480), true, 60));
 157
 158   ui::TestDisplaySnapshot display_snapshot;
 159   display_snapshot.set_modes(modes.get());
 160   display_snapshot.set_native_mode(modes[0]);
 161   DisplayConfigurator::DisplayState output;
 162   output.display = &display_snapshot;
 163
 164   std::vector<DisplayMode> display_modes =
 165       DisplayChangeObserver::GetExternalDisplayModeList(output);
 166   ASSERT_EQ(9u, display_modes.size());
 167   EXPECT_EQ("640x480", display_modes[0].size.ToString());
 168   EXPECT_TRUE(display_modes[0].interlaced);
 169   EXPECT_EQ(display_modes[0].refresh_rate, 60);
 170
 171   EXPECT_EQ("1024x600", display_modes[1].size.ToString());
 172   EXPECT_FALSE(display_modes[1].interlaced);
 173   EXPECT_EQ(display_modes[1].refresh_rate, 70);
 174
 175   EXPECT_EQ("1024x768", display_modes[2].size.ToString());
 176   EXPECT_TRUE(display_modes[2].interlaced);
 177   EXPECT_EQ(display_modes[2].refresh_rate, 70);
 178
 179   EXPECT_EQ("1280x720", display_modes[3].size.ToString());
 180   EXPECT_FALSE(display_modes[3].interlaced);
 181   EXPECT_EQ(display_modes[3].refresh_rate, 60);
 182
 183   EXPECT_EQ("1920x1080", display_modes[4].size.ToString());
 184   EXPECT_FALSE(display_modes[4].interlaced);
 185   EXPECT_EQ(display_modes[4].refresh_rate, 80);
 186
 187   EXPECT_EQ("3840x2160", display_modes[5].size.ToString());
 188   EXPECT_FALSE(display_modes[5].interlaced);
 189   EXPECT_FALSE(display_modes[5].native);
 190   EXPECT_EQ(display_modes[5].refresh_rate, 30);
 191   EXPECT_EQ(display_modes[5].device_scale_factor, 2.0);
 192
 193   EXPECT_EQ("1920x1200", display_modes[6].size.ToString());
 194   EXPECT_FALSE(display_modes[6].interlaced);
 195   EXPECT_EQ(display_modes[6].refresh_rate, 60);
 196
 197   EXPECT_EQ("3840x2160", display_modes[7].size.ToString());
 198   EXPECT_FALSE(display_modes[7].interlaced);
 199   EXPECT_FALSE(display_modes[7].native);
 200   EXPECT_EQ(display_modes[7].refresh_rate, 30);
 201   EXPECT_EQ(display_modes[7].device_scale_factor, 1.25);
 202
 203   EXPECT_EQ("3840x2160", display_modes[8].size.ToString());
 204   EXPECT_FALSE(display_modes[8].interlaced);
 205   EXPECT_TRUE(display_modes[8].native);
 206   EXPECT_EQ(display_modes[8].refresh_rate, 30);
 207
 208   // Outputs without any modes shouldn't cause a crash.
 209   modes.clear();
 210   display_snapshot.set_modes(modes.get());
 211
 212   display_modes = DisplayChangeObserver::GetExternalDisplayModeList(output);
 213   EXPECT_EQ(0u, display_modes.size());
 214 }
 215
 216 TEST_F(DisplayChangeObserverTest, FindDeviceScaleFactor) {
 217   // 19.5" 1600x900
 218   EXPECT_EQ(1.0f, DisplayChangeObserver::FindDeviceScaleFactor(94.14f));
 219
 220   // 21.5" 1920x1080
 221   EXPECT_EQ(1.0f, DisplayChangeObserver::FindDeviceScaleFactor(102.46f));
 222
 223   // 12.1" 1280x800
 224   EXPECT_EQ(1.0f, DisplayChangeObserver::FindDeviceScaleFactor(124.75f));
 225
 226   // 13.3" 1920x1080
 227   EXPECT_EQ(1.25f, DisplayChangeObserver::FindDeviceScaleFactor(157.35f));
 228
 229   // 14" 1920x1080
 230   EXPECT_EQ(1.25f, DisplayChangeObserver::FindDeviceScaleFactor(165.63f));
 231
 232   // 12.85" 2560x1700
 233   EXPECT_EQ(2.0f, DisplayChangeObserver::FindDeviceScaleFactor(239.15f));
 234
 235   // Erroneous values should still work.
 236   EXPECT_EQ(1.0f, DisplayChangeObserver::FindDeviceScaleFactor(-100.0f));
 237   EXPECT_EQ(1.0f, DisplayChangeObserver::FindDeviceScaleFactor(0.0f));
 238   EXPECT_EQ(2.0f, DisplayChangeObserver::FindDeviceScaleFactor(10000.0f));
 239 }
 240
 241 }  // namespace ash