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/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, GetInternalHiDPIDisplayModeList) {
 133   ScopedVector<const ui::DisplayMode> modes;
 134   // Data picked from peppy.
 135   modes.push_back(new ui::DisplayMode(gfx::Size(2560, 1700), false, 60));
 136   modes.push_back(new ui::DisplayMode(gfx::Size(2048, 1536), false, 60));
 137   modes.push_back(new ui::DisplayMode(gfx::Size(1920, 1440), false, 60));
 138
 139   ui::TestDisplaySnapshot display_snapshot;
 140   display_snapshot.set_modes(modes.get());
 141   display_snapshot.set_native_mode(modes[0]);
 142   DisplayConfigurator::DisplayState output;
 143   output.display = &display_snapshot;
 144
 145   DisplayInfo info;
 146   info.SetBounds(gfx::Rect(0, 0, 2560, 1700));
 147   info.set_device_scale_factor(2.0f);
 148
 149   std::vector<DisplayMode> display_modes =
 150       DisplayChangeObserver::GetInternalDisplayModeList(info, output);
 151   ASSERT_EQ(8u, display_modes.size());
 152   EXPECT_EQ("2560x1700", display_modes[0].size.ToString());
 153   EXPECT_FALSE(display_modes[0].native);
 154   EXPECT_NEAR(display_modes[0].ui_scale, 0.5, 0.01);
 155   EXPECT_EQ(display_modes[0].refresh_rate, 60);
 156
 157   EXPECT_EQ("2560x1700", display_modes[1].size.ToString());
 158   EXPECT_FALSE(display_modes[1].native);
 159   EXPECT_NEAR(display_modes[1].ui_scale, 0.625, 0.01);
 160   EXPECT_EQ(display_modes[1].refresh_rate, 60);
 161
 162   EXPECT_EQ("2560x1700", display_modes[2].size.ToString());
 163   EXPECT_FALSE(display_modes[2].native);
 164   EXPECT_NEAR(display_modes[2].ui_scale, 0.8, 0.01);
 165   EXPECT_EQ(display_modes[2].refresh_rate, 60);
 166
 167   EXPECT_EQ("2560x1700", display_modes[3].size.ToString());
 168   EXPECT_FALSE(display_modes[3].native);
 169   EXPECT_NEAR(display_modes[3].ui_scale, 1.0, 0.01);
 170   EXPECT_EQ(display_modes[3].refresh_rate, 60);
 171
 172   EXPECT_EQ("2560x1700", display_modes[4].size.ToString());
 173   EXPECT_FALSE(display_modes[4].native);
 174   EXPECT_NEAR(display_modes[4].ui_scale, 1.125, 0.01);
 175   EXPECT_EQ(display_modes[4].refresh_rate, 60);
 176
 177   EXPECT_EQ("2560x1700", display_modes[5].size.ToString());
 178   EXPECT_FALSE(display_modes[5].native);
 179   EXPECT_NEAR(display_modes[5].ui_scale, 1.25, 0.01);
 180   EXPECT_EQ(display_modes[5].refresh_rate, 60);
 181
 182   EXPECT_EQ("2560x1700", display_modes[6].size.ToString());
 183   EXPECT_FALSE(display_modes[6].native);
 184   EXPECT_NEAR(display_modes[6].ui_scale, 1.5, 0.01);
 185   EXPECT_EQ(display_modes[6].refresh_rate, 60);
 186
 187   EXPECT_EQ("2560x1700", display_modes[7].size.ToString());
 188   EXPECT_TRUE(display_modes[7].native);
 189   EXPECT_NEAR(display_modes[7].ui_scale, 2.0, 0.01);
 190   EXPECT_EQ(display_modes[7].refresh_rate, 60);
 191 }
 192
 193 TEST_F(DisplayChangeObserverTest, GetInternalDisplayModeList1_25) {
 194   ScopedVector<const ui::DisplayMode> modes;
 195   // Data picked from peppy.
 196   modes.push_back(new ui::DisplayMode(gfx::Size(1920, 1080), false, 60));
 197
 198   ui::TestDisplaySnapshot display_snapshot;
 199   display_snapshot.set_modes(modes.get());
 200   display_snapshot.set_native_mode(modes[0]);
 201   DisplayConfigurator::DisplayState output;
 202   output.display = &display_snapshot;
 203
 204   DisplayInfo info;
 205   info.SetBounds(gfx::Rect(0, 0, 1920, 1080));
 206   info.set_device_scale_factor(1.25);
 207
 208   std::vector<DisplayMode> display_modes =
 209       DisplayChangeObserver::GetInternalDisplayModeList(info, output);
 210   ASSERT_EQ(5u, display_modes.size());
 211   EXPECT_EQ("1920x1080", display_modes[0].size.ToString());
 212   EXPECT_FALSE(display_modes[0].native);
 213   EXPECT_NEAR(display_modes[0].ui_scale, 0.5, 0.01);
 214   EXPECT_EQ(display_modes[0].refresh_rate, 60);
 215
 216   EXPECT_EQ("1920x1080", display_modes[1].size.ToString());
 217   EXPECT_FALSE(display_modes[1].native);
 218   EXPECT_NEAR(display_modes[1].ui_scale, 0.625, 0.01);
 219   EXPECT_EQ(display_modes[1].refresh_rate, 60);
 220
 221   EXPECT_EQ("1920x1080", display_modes[2].size.ToString());
 222   EXPECT_FALSE(display_modes[2].native);
 223   EXPECT_NEAR(display_modes[2].ui_scale, 0.8, 0.01);
 224   EXPECT_EQ(display_modes[2].refresh_rate, 60);
 225
 226   EXPECT_EQ("1920x1080", display_modes[3].size.ToString());
 227   EXPECT_TRUE(display_modes[3].native);
 228   EXPECT_NEAR(display_modes[3].ui_scale, 1.0, 0.01);
 229   EXPECT_EQ(display_modes[3].refresh_rate, 60);
 230
 231   EXPECT_EQ("1920x1080", display_modes[4].size.ToString());
 232   EXPECT_FALSE(display_modes[4].native);
 233   EXPECT_NEAR(display_modes[4].ui_scale, 1.25, 0.01);
 234   EXPECT_EQ(display_modes[4].refresh_rate, 60);
 235 }
 236
 237 TEST_F(DisplayChangeObserverTest, GetExternalDisplayModeList4K) {
 238   ScopedVector<const ui::DisplayMode> modes;
 239   modes.push_back(new ui::DisplayMode(gfx::Size(3840, 2160), false, 30));
 240   modes.push_back(new ui::DisplayMode(gfx::Size(1920, 1200), false, 60));
 241
 242   // All non-interlaced (as would be seen with different refresh rates).
 243   modes.push_back(new ui::DisplayMode(gfx::Size(1920, 1080), false, 80));
 244   modes.push_back(new ui::DisplayMode(gfx::Size(1920, 1080), false, 70));
 245   modes.push_back(new ui::DisplayMode(gfx::Size(1920, 1080), false, 60));
 246
 247   // Interlaced vs non-interlaced.
 248   modes.push_back(new ui::DisplayMode(gfx::Size(1280, 720), true, 60));
 249   modes.push_back(new ui::DisplayMode(gfx::Size(1280, 720), false, 60));
 250
 251   // Interlaced only.
 252   modes.push_back(new ui::DisplayMode(gfx::Size(1024, 768), true, 70));
 253   modes.push_back(new ui::DisplayMode(gfx::Size(1024, 768), true, 60));
 254
 255   // Mixed.
 256   modes.push_back(new ui::DisplayMode(gfx::Size(1024, 600), true, 60));
 257   modes.push_back(new ui::DisplayMode(gfx::Size(1024, 600), false, 70));
 258   modes.push_back(new ui::DisplayMode(gfx::Size(1024, 600), false, 60));
 259
 260   // Just one interlaced mode.
 261   modes.push_back(new ui::DisplayMode(gfx::Size(640, 480), true, 60));
 262
 263   ui::TestDisplaySnapshot display_snapshot;
 264   display_snapshot.set_modes(modes.get());
 265   display_snapshot.set_native_mode(modes[0]);
 266   DisplayConfigurator::DisplayState output;
 267   output.display = &display_snapshot;
 268
 269   std::vector<DisplayMode> display_modes =
 270       DisplayChangeObserver::GetExternalDisplayModeList(output);
 271   ASSERT_EQ(9u, display_modes.size());
 272   EXPECT_EQ("640x480", display_modes[0].size.ToString());
 273   EXPECT_TRUE(display_modes[0].interlaced);
 274   EXPECT_EQ(display_modes[0].refresh_rate, 60);
 275
 276   EXPECT_EQ("1024x600", display_modes[1].size.ToString());
 277   EXPECT_FALSE(display_modes[1].interlaced);
 278   EXPECT_EQ(display_modes[1].refresh_rate, 70);
 279
 280   EXPECT_EQ("1024x768", display_modes[2].size.ToString());
 281   EXPECT_TRUE(display_modes[2].interlaced);
 282   EXPECT_EQ(display_modes[2].refresh_rate, 70);
 283
 284   EXPECT_EQ("1280x720", display_modes[3].size.ToString());
 285   EXPECT_FALSE(display_modes[3].interlaced);
 286   EXPECT_EQ(display_modes[3].refresh_rate, 60);
 287
 288   EXPECT_EQ("1920x1080", display_modes[4].size.ToString());
 289   EXPECT_FALSE(display_modes[4].interlaced);
 290   EXPECT_EQ(display_modes[4].refresh_rate, 80);
 291
 292   EXPECT_EQ("3840x2160", display_modes[5].size.ToString());
 293   EXPECT_FALSE(display_modes[5].interlaced);
 294   EXPECT_FALSE(display_modes[5].native);
 295   EXPECT_EQ(display_modes[5].refresh_rate, 30);
 296   EXPECT_EQ(display_modes[5].device_scale_factor, 2.0);
 297
 298   EXPECT_EQ("1920x1200", display_modes[6].size.ToString());
 299   EXPECT_FALSE(display_modes[6].interlaced);
 300   EXPECT_EQ(display_modes[6].refresh_rate, 60);
 301
 302   EXPECT_EQ("3840x2160", display_modes[7].size.ToString());
 303   EXPECT_FALSE(display_modes[7].interlaced);
 304   EXPECT_FALSE(display_modes[7].native);
 305   EXPECT_EQ(display_modes[7].refresh_rate, 30);
 306   EXPECT_EQ(display_modes[7].device_scale_factor, 1.25);
 307
 308   EXPECT_EQ("3840x2160", display_modes[8].size.ToString());
 309   EXPECT_FALSE(display_modes[8].interlaced);
 310   EXPECT_TRUE(display_modes[8].native);
 311   EXPECT_EQ(display_modes[8].refresh_rate, 30);
 312
 313   // Outputs without any modes shouldn't cause a crash.
 314   modes.clear();
 315   display_snapshot.set_modes(modes.get());
 316   display_snapshot.set_native_mode(NULL);
 317
 318   display_modes = DisplayChangeObserver::GetExternalDisplayModeList(output);
 319   EXPECT_EQ(0u, display_modes.size());
 320 }
 321
 322 namespace {
 323
 324 float ComputeDeviceScaleFactor(float diagonal_inch,
 325                                const gfx::Rect& resolution) {
 326   // We assume that displays have square pixel.
 327   float diagonal_pixel = std::sqrt(std::pow(resolution.width(), 2) +
 328                                    std::pow(resolution.height(), 2));
 329   float dpi = diagonal_pixel / diagonal_inch;
 330   return DisplayChangeObserver::FindDeviceScaleFactor(dpi);
 331 }
 332
 333 }  // namespace
 334
 335 TEST_F(DisplayChangeObserverTest, FindDeviceScaleFactor) {
 336   EXPECT_EQ(1.0f, ComputeDeviceScaleFactor(19.5f, gfx::Rect(1600, 900)));
 337
 338   // 21.5" 1920x1080
 339   EXPECT_EQ(1.0f, ComputeDeviceScaleFactor(21.5f, gfx::Rect(1920, 1080)));
 340
 341   // 12.1" 1280x800
 342   EXPECT_EQ(1.0f, ComputeDeviceScaleFactor(12.1f, gfx::Rect(1280, 800)));
 343
 344   // 11.6" 1920x1080
 345   EXPECT_EQ(1.25f, ComputeDeviceScaleFactor(11.6f, gfx::Rect(1920, 1080)));
 346
 347   // 13.3" 1920x1080
 348   EXPECT_EQ(1.25f, ComputeDeviceScaleFactor(13.3f, gfx::Rect(1920, 1080)));
 349
 350   // 14" 1920x1080
 351   EXPECT_EQ(1.25f, ComputeDeviceScaleFactor(14.0f, gfx::Rect(1920, 1080)));
 352
 353   // 12.85" 2560x1700
 354   EXPECT_EQ(2.0f, ComputeDeviceScaleFactor(12.85f, gfx::Rect(2560, 1700)));
 355
 356   // Erroneous values should still work.
 357   EXPECT_EQ(1.0f, DisplayChangeObserver::FindDeviceScaleFactor(-100.0f));
 358   EXPECT_EQ(1.0f, DisplayChangeObserver::FindDeviceScaleFactor(0.0f));
 359   EXPECT_EQ(2.0f, DisplayChangeObserver::FindDeviceScaleFactor(10000.0f));
 360 }
 361
 362 TEST_F(DisplayChangeObserverTest,
 363        FindExternalDisplayNativeModeWhenOverwritten) {
 364   ScopedVector<const ui::DisplayMode> modes;
 365   modes.push_back(new ui::DisplayMode(gfx::Size(1920, 1080), true, 60));
 366   modes.push_back(new ui::DisplayMode(gfx::Size(1920, 1080), false, 60));
 367
 368   ui::TestDisplaySnapshot display_snapshot;
 369   display_snapshot.set_modes(modes.get());
 370   display_snapshot.set_native_mode(modes[0]);
 371   DisplayConfigurator::DisplayState output;
 372   output.display = &display_snapshot;
 373
 374   std::vector<DisplayMode> display_modes =
 375       DisplayChangeObserver::GetExternalDisplayModeList(output);
 376   ASSERT_EQ(2u, display_modes.size());
 377   EXPECT_EQ("1920x1080", display_modes[0].size.ToString());
 378   EXPECT_FALSE(display_modes[0].interlaced);
 379   EXPECT_FALSE(display_modes[0].native);
 380   EXPECT_EQ(display_modes[0].refresh_rate, 60);
 381
 382   EXPECT_EQ("1920x1080", display_modes[1].size.ToString());
 383   EXPECT_TRUE(display_modes[1].interlaced);
 384   EXPECT_TRUE(display_modes[1].native);
 385   EXPECT_EQ(display_modes[1].refresh_rate, 60);
 386 }
 387
 388 }  // namespace ash