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
  48   std::vector<DisplayMode> display_modes =
  49       DisplayChangeObserver::GetExternalDisplayModeList(display_snapshot);
  50   ASSERT_EQ(6u, display_modes.size());
  51   EXPECT_EQ("640x480", display_modes[0].size.ToString());
  52   EXPECT_TRUE(display_modes[0].interlaced);
  53   EXPECT_EQ(display_modes[0].refresh_rate, 60);
  54
  55   EXPECT_EQ("1024x600", display_modes[1].size.ToString());
  56   EXPECT_FALSE(display_modes[1].interlaced);
  57   EXPECT_EQ(display_modes[1].refresh_rate, 70);
  58
  59   EXPECT_EQ("1024x768", display_modes[2].size.ToString());
  60   EXPECT_TRUE(display_modes[2].interlaced);
  61   EXPECT_EQ(display_modes[2].refresh_rate, 70);
  62
  63   EXPECT_EQ("1280x720", display_modes[3].size.ToString());
  64   EXPECT_FALSE(display_modes[3].interlaced);
  65   EXPECT_EQ(display_modes[3].refresh_rate, 60);
  66
  67   EXPECT_EQ("1920x1080", display_modes[4].size.ToString());
  68   EXPECT_FALSE(display_modes[4].interlaced);
  69   EXPECT_EQ(display_modes[4].refresh_rate, 80);
  70
  71   EXPECT_EQ("1920x1200", display_modes[5].size.ToString());
  72   EXPECT_FALSE(display_modes[5].interlaced);
  73   EXPECT_EQ(display_modes[5].refresh_rate, 60);
  74
  75   // Outputs without any modes shouldn't cause a crash.
  76   modes.clear();
  77   display_snapshot.set_modes(modes.get());
  78
  79   display_modes =
  80       DisplayChangeObserver::GetExternalDisplayModeList(display_snapshot);
  81   EXPECT_EQ(0u, display_modes.size());
  82 }
  83
  84 TEST_F(DisplayChangeObserverTest, GetInternalDisplayModeList) {
  85   ScopedVector<const ui::DisplayMode> modes;
  86   // Data picked from peppy.
  87   modes.push_back(new ui::DisplayMode(gfx::Size(1366, 768), false, 60));
  88   modes.push_back(new ui::DisplayMode(gfx::Size(1024, 768), false, 60));
  89   modes.push_back(new ui::DisplayMode(gfx::Size(800, 600), false, 60));
  90   modes.push_back(new ui::DisplayMode(gfx::Size(600, 600), false, 56.2));
  91   modes.push_back(new ui::DisplayMode(gfx::Size(640, 480), false, 59.9));
  92
  93   ui::TestDisplaySnapshot display_snapshot;
  94   display_snapshot.set_modes(modes.get());
  95   display_snapshot.set_native_mode(modes[0]);
  96
  97   DisplayInfo info;
  98   info.SetBounds(gfx::Rect(0, 0, 1366, 768));
  99
 100   std::vector<DisplayMode> display_modes =
 101       DisplayChangeObserver::GetInternalDisplayModeList(info, display_snapshot);
 102   ASSERT_EQ(5u, display_modes.size());
 103   EXPECT_EQ("1366x768", display_modes[0].size.ToString());
 104   EXPECT_FALSE(display_modes[0].native);
 105   EXPECT_NEAR(display_modes[0].ui_scale, 0.5, 0.01);
 106   EXPECT_EQ(display_modes[0].refresh_rate, 60);
 107
 108   EXPECT_EQ("1366x768", display_modes[1].size.ToString());
 109   EXPECT_FALSE(display_modes[1].native);
 110   EXPECT_NEAR(display_modes[1].ui_scale, 0.6, 0.01);
 111   EXPECT_EQ(display_modes[1].refresh_rate, 60);
 112
 113   EXPECT_EQ("1366x768", display_modes[2].size.ToString());
 114   EXPECT_FALSE(display_modes[2].native);
 115   EXPECT_NEAR(display_modes[2].ui_scale, 0.75, 0.01);
 116   EXPECT_EQ(display_modes[2].refresh_rate, 60);
 117
 118   EXPECT_EQ("1366x768", display_modes[3].size.ToString());
 119   EXPECT_TRUE(display_modes[3].native);
 120   EXPECT_NEAR(display_modes[3].ui_scale, 1.0, 0.01);
 121   EXPECT_EQ(display_modes[3].refresh_rate, 60);
 122
 123   EXPECT_EQ("1366x768", display_modes[4].size.ToString());
 124   EXPECT_FALSE(display_modes[4].native);
 125   EXPECT_NEAR(display_modes[4].ui_scale, 1.125, 0.01);
 126   EXPECT_EQ(display_modes[4].refresh_rate, 60);
 127 }
 128
 129 TEST_F(DisplayChangeObserverTest, GetInternalHiDPIDisplayModeList) {
 130   ScopedVector<const ui::DisplayMode> modes;
 131   // Data picked from peppy.
 132   modes.push_back(new ui::DisplayMode(gfx::Size(2560, 1700), false, 60));
 133   modes.push_back(new ui::DisplayMode(gfx::Size(2048, 1536), false, 60));
 134   modes.push_back(new ui::DisplayMode(gfx::Size(1920, 1440), false, 60));
 135
 136   ui::TestDisplaySnapshot display_snapshot;
 137   display_snapshot.set_modes(modes.get());
 138   display_snapshot.set_native_mode(modes[0]);
 139
 140   DisplayInfo info;
 141   info.SetBounds(gfx::Rect(0, 0, 2560, 1700));
 142   info.set_device_scale_factor(2.0f);
 143
 144   std::vector<DisplayMode> display_modes =
 145       DisplayChangeObserver::GetInternalDisplayModeList(info, display_snapshot);
 146   ASSERT_EQ(8u, display_modes.size());
 147   EXPECT_EQ("2560x1700", display_modes[0].size.ToString());
 148   EXPECT_FALSE(display_modes[0].native);
 149   EXPECT_NEAR(display_modes[0].ui_scale, 0.5, 0.01);
 150   EXPECT_EQ(display_modes[0].refresh_rate, 60);
 151
 152   EXPECT_EQ("2560x1700", display_modes[1].size.ToString());
 153   EXPECT_FALSE(display_modes[1].native);
 154   EXPECT_NEAR(display_modes[1].ui_scale, 0.625, 0.01);
 155   EXPECT_EQ(display_modes[1].refresh_rate, 60);
 156
 157   EXPECT_EQ("2560x1700", display_modes[2].size.ToString());
 158   EXPECT_FALSE(display_modes[2].native);
 159   EXPECT_NEAR(display_modes[2].ui_scale, 0.8, 0.01);
 160   EXPECT_EQ(display_modes[2].refresh_rate, 60);
 161
 162   EXPECT_EQ("2560x1700", display_modes[3].size.ToString());
 163   EXPECT_FALSE(display_modes[3].native);
 164   EXPECT_NEAR(display_modes[3].ui_scale, 1.0, 0.01);
 165   EXPECT_EQ(display_modes[3].refresh_rate, 60);
 166
 167   EXPECT_EQ("2560x1700", display_modes[4].size.ToString());
 168   EXPECT_FALSE(display_modes[4].native);
 169   EXPECT_NEAR(display_modes[4].ui_scale, 1.125, 0.01);
 170   EXPECT_EQ(display_modes[4].refresh_rate, 60);
 171
 172   EXPECT_EQ("2560x1700", display_modes[5].size.ToString());
 173   EXPECT_FALSE(display_modes[5].native);
 174   EXPECT_NEAR(display_modes[5].ui_scale, 1.25, 0.01);
 175   EXPECT_EQ(display_modes[5].refresh_rate, 60);
 176
 177   EXPECT_EQ("2560x1700", display_modes[6].size.ToString());
 178   EXPECT_FALSE(display_modes[6].native);
 179   EXPECT_NEAR(display_modes[6].ui_scale, 1.5, 0.01);
 180   EXPECT_EQ(display_modes[6].refresh_rate, 60);
 181
 182   EXPECT_EQ("2560x1700", display_modes[7].size.ToString());
 183   EXPECT_TRUE(display_modes[7].native);
 184   EXPECT_NEAR(display_modes[7].ui_scale, 2.0, 0.01);
 185   EXPECT_EQ(display_modes[7].refresh_rate, 60);
 186 }
 187
 188 TEST_F(DisplayChangeObserverTest, GetInternalDisplayModeList1_25) {
 189   ScopedVector<const ui::DisplayMode> modes;
 190   // Data picked from peppy.
 191   modes.push_back(new ui::DisplayMode(gfx::Size(1920, 1080), false, 60));
 192
 193   ui::TestDisplaySnapshot display_snapshot;
 194   display_snapshot.set_modes(modes.get());
 195   display_snapshot.set_native_mode(modes[0]);
 196
 197   DisplayInfo info;
 198   info.SetBounds(gfx::Rect(0, 0, 1920, 1080));
 199   info.set_device_scale_factor(1.25);
 200
 201   std::vector<DisplayMode> display_modes =
 202       DisplayChangeObserver::GetInternalDisplayModeList(info, display_snapshot);
 203   ASSERT_EQ(5u, display_modes.size());
 204   EXPECT_EQ("1920x1080", display_modes[0].size.ToString());
 205   EXPECT_FALSE(display_modes[0].native);
 206   EXPECT_NEAR(display_modes[0].ui_scale, 0.5, 0.01);
 207   EXPECT_EQ(display_modes[0].refresh_rate, 60);
 208
 209   EXPECT_EQ("1920x1080", display_modes[1].size.ToString());
 210   EXPECT_FALSE(display_modes[1].native);
 211   EXPECT_NEAR(display_modes[1].ui_scale, 0.625, 0.01);
 212   EXPECT_EQ(display_modes[1].refresh_rate, 60);
 213
 214   EXPECT_EQ("1920x1080", display_modes[2].size.ToString());
 215   EXPECT_FALSE(display_modes[2].native);
 216   EXPECT_NEAR(display_modes[2].ui_scale, 0.8, 0.01);
 217   EXPECT_EQ(display_modes[2].refresh_rate, 60);
 218
 219   EXPECT_EQ("1920x1080", display_modes[3].size.ToString());
 220   EXPECT_TRUE(display_modes[3].native);
 221   EXPECT_NEAR(display_modes[3].ui_scale, 1.0, 0.01);
 222   EXPECT_EQ(display_modes[3].refresh_rate, 60);
 223
 224   EXPECT_EQ("1920x1080", display_modes[4].size.ToString());
 225   EXPECT_FALSE(display_modes[4].native);
 226   EXPECT_NEAR(display_modes[4].ui_scale, 1.25, 0.01);
 227   EXPECT_EQ(display_modes[4].refresh_rate, 60);
 228 }
 229
 230 TEST_F(DisplayChangeObserverTest, GetExternalDisplayModeList4K) {
 231   ScopedVector<const ui::DisplayMode> modes;
 232   modes.push_back(new ui::DisplayMode(gfx::Size(3840, 2160), false, 30));
 233   modes.push_back(new ui::DisplayMode(gfx::Size(1920, 1200), false, 60));
 234
 235   // All non-interlaced (as would be seen with different refresh rates).
 236   modes.push_back(new ui::DisplayMode(gfx::Size(1920, 1080), false, 80));
 237   modes.push_back(new ui::DisplayMode(gfx::Size(1920, 1080), false, 70));
 238   modes.push_back(new ui::DisplayMode(gfx::Size(1920, 1080), false, 60));
 239
 240   // Interlaced vs non-interlaced.
 241   modes.push_back(new ui::DisplayMode(gfx::Size(1280, 720), true, 60));
 242   modes.push_back(new ui::DisplayMode(gfx::Size(1280, 720), false, 60));
 243
 244   // Interlaced only.
 245   modes.push_back(new ui::DisplayMode(gfx::Size(1024, 768), true, 70));
 246   modes.push_back(new ui::DisplayMode(gfx::Size(1024, 768), true, 60));
 247
 248   // Mixed.
 249   modes.push_back(new ui::DisplayMode(gfx::Size(1024, 600), true, 60));
 250   modes.push_back(new ui::DisplayMode(gfx::Size(1024, 600), false, 70));
 251   modes.push_back(new ui::DisplayMode(gfx::Size(1024, 600), false, 60));
 252
 253   // Just one interlaced mode.
 254   modes.push_back(new ui::DisplayMode(gfx::Size(640, 480), true, 60));
 255
 256   ui::TestDisplaySnapshot display_snapshot;
 257   display_snapshot.set_modes(modes.get());
 258   display_snapshot.set_native_mode(modes[0]);
 259
 260   std::vector<DisplayMode> display_modes =
 261       DisplayChangeObserver::GetExternalDisplayModeList(display_snapshot);
 262   DisplayInfo info;
 263   info.SetDisplayModes(display_modes);  // Sort as external display.
 264   display_modes = info.display_modes();
 265
 266   ASSERT_EQ(9u, display_modes.size());
 267   EXPECT_EQ("640x480", display_modes[0].size.ToString());
 268   EXPECT_TRUE(display_modes[0].interlaced);
 269   EXPECT_EQ(display_modes[0].refresh_rate, 60);
 270
 271   EXPECT_EQ("1024x600", display_modes[1].size.ToString());
 272   EXPECT_FALSE(display_modes[1].interlaced);
 273   EXPECT_EQ(display_modes[1].refresh_rate, 70);
 274
 275   EXPECT_EQ("1024x768", display_modes[2].size.ToString());
 276   EXPECT_TRUE(display_modes[2].interlaced);
 277   EXPECT_EQ(display_modes[2].refresh_rate, 70);
 278
 279   EXPECT_EQ("1280x720", display_modes[3].size.ToString());
 280   EXPECT_FALSE(display_modes[3].interlaced);
 281   EXPECT_EQ(display_modes[3].refresh_rate, 60);
 282
 283   EXPECT_EQ("1920x1080", display_modes[4].size.ToString());
 284   EXPECT_FALSE(display_modes[4].interlaced);
 285   EXPECT_EQ(display_modes[4].refresh_rate, 80);
 286
 287   EXPECT_EQ("3840x2160", display_modes[5].size.ToString());
 288   EXPECT_FALSE(display_modes[5].interlaced);
 289   EXPECT_FALSE(display_modes[5].native);
 290   EXPECT_EQ(display_modes[5].refresh_rate, 30);
 291   EXPECT_EQ(display_modes[5].device_scale_factor, 2.0);
 292
 293   EXPECT_EQ("1920x1200", display_modes[6].size.ToString());
 294   EXPECT_FALSE(display_modes[6].interlaced);
 295   EXPECT_EQ(display_modes[6].refresh_rate, 60);
 296
 297   EXPECT_EQ("3840x2160", display_modes[7].size.ToString());
 298   EXPECT_FALSE(display_modes[7].interlaced);
 299   EXPECT_FALSE(display_modes[7].native);
 300   EXPECT_EQ(display_modes[7].refresh_rate, 30);
 301   EXPECT_EQ(display_modes[7].device_scale_factor, 1.25);
 302
 303   EXPECT_EQ("3840x2160", display_modes[8].size.ToString());
 304   EXPECT_FALSE(display_modes[8].interlaced);
 305   EXPECT_TRUE(display_modes[8].native);
 306   EXPECT_EQ(display_modes[8].refresh_rate, 30);
 307
 308   // Outputs without any modes shouldn't cause a crash.
 309   modes.clear();
 310   display_snapshot.set_modes(modes.get());
 311   display_snapshot.set_native_mode(NULL);
 312
 313   display_modes =
 314       DisplayChangeObserver::GetExternalDisplayModeList(display_snapshot);
 315   EXPECT_EQ(0u, display_modes.size());
 316 }
 317
 318 namespace {
 319
 320 float ComputeDeviceScaleFactor(float diagonal_inch,
 321                                const gfx::Rect& resolution) {
 322   // We assume that displays have square pixel.
 323   float diagonal_pixel = std::sqrt(std::pow(resolution.width(), 2) +
 324                                    std::pow(resolution.height(), 2));
 325   float dpi = diagonal_pixel / diagonal_inch;
 326   return DisplayChangeObserver::FindDeviceScaleFactor(dpi);
 327 }
 328
 329 }  // namespace
 330
 331 TEST_F(DisplayChangeObserverTest, FindDeviceScaleFactor) {
 332   EXPECT_EQ(1.0f, ComputeDeviceScaleFactor(19.5f, gfx::Rect(1600, 900)));
 333
 334   // 21.5" 1920x1080
 335   EXPECT_EQ(1.0f, ComputeDeviceScaleFactor(21.5f, gfx::Rect(1920, 1080)));
 336
 337   // 12.1" 1280x800
 338   EXPECT_EQ(1.0f, ComputeDeviceScaleFactor(12.1f, gfx::Rect(1280, 800)));
 339
 340   // 11.6" 1920x1080
 341   EXPECT_EQ(1.25f, ComputeDeviceScaleFactor(11.6f, gfx::Rect(1920, 1080)));
 342
 343   // 13.3" 1920x1080
 344   EXPECT_EQ(1.25f, ComputeDeviceScaleFactor(13.3f, gfx::Rect(1920, 1080)));
 345
 346   // 14" 1920x1080
 347   EXPECT_EQ(1.25f, ComputeDeviceScaleFactor(14.0f, gfx::Rect(1920, 1080)));
 348
 349   // 12.85" 2560x1700
 350   EXPECT_EQ(2.0f, ComputeDeviceScaleFactor(12.85f, gfx::Rect(2560, 1700)));
 351
 352   // Erroneous values should still work.
 353   EXPECT_EQ(1.0f, DisplayChangeObserver::FindDeviceScaleFactor(-100.0f));
 354   EXPECT_EQ(1.0f, DisplayChangeObserver::FindDeviceScaleFactor(0.0f));
 355   EXPECT_EQ(2.0f, DisplayChangeObserver::FindDeviceScaleFactor(10000.0f));
 356 }
 357
 358 TEST_F(DisplayChangeObserverTest,
 359        FindExternalDisplayNativeModeWhenOverwritten) {
 360   ScopedVector<const ui::DisplayMode> modes;
 361   modes.push_back(new ui::DisplayMode(gfx::Size(1920, 1080), true, 60));
 362   modes.push_back(new ui::DisplayMode(gfx::Size(1920, 1080), false, 60));
 363
 364   ui::TestDisplaySnapshot display_snapshot;
 365   display_snapshot.set_modes(modes.get());
 366   display_snapshot.set_native_mode(modes[0]);
 367
 368   std::vector<DisplayMode> display_modes =
 369       DisplayChangeObserver::GetExternalDisplayModeList(display_snapshot);
 370   ASSERT_EQ(2u, display_modes.size());
 371   EXPECT_EQ("1920x1080", display_modes[0].size.ToString());
 372   EXPECT_FALSE(display_modes[0].interlaced);
 373   EXPECT_FALSE(display_modes[0].native);
 374   EXPECT_EQ(display_modes[0].refresh_rate, 60);
 375
 376   EXPECT_EQ("1920x1080", display_modes[1].size.ToString());
 377   EXPECT_TRUE(display_modes[1].interlaced);
 378   EXPECT_TRUE(display_modes[1].native);
 379   EXPECT_EQ(display_modes[1].refresh_rate, 60);
 380 }
 381
 382 }  // namespace ash