chrome/browser/ui/fullscreen/fullscreen_controller_state_unittest.cc

   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 "build/build_config.h"
   6 #include "chrome/browser/ui/browser.h"
   7 #include "chrome/browser/ui/browser_tabstrip.h"
   8 #include "chrome/browser/ui/fullscreen/fullscreen_controller.h"
   9 #include "chrome/browser/ui/fullscreen/fullscreen_controller_state_test.h"
  10 #include "chrome/test/base/browser_with_test_window_test.h"
  11 #include "content/public/browser/web_contents.h"
  12 #include "content/public/common/url_constants.h"
  13 #include "testing/gtest/include/gtest/gtest.h"
  14
  15 // The FullscreenControllerStateUnitTest unit test suite exhastively tests
  16 // the FullscreenController through all permutations of events. The behavior
  17 // of the BrowserWindow is mocked via FullscreenControllerTestWindow.
  18 //
  19 // FullscreenControllerStateInteractiveTest is an interactive test suite
  20 // used to verify that the FullscreenControllerTestWindow models the behavior
  21 // of actual windows accurately. The interactive tests are too flaky to run
  22 // on infrastructure, and so those tests are disabled. Run them with:
  23 //     interactive_ui_tests
  24 //         --gtest_filter="FullscreenControllerStateInteractiveTest.*"
  25 //         --gtest_also_run_disabled_tests
  26
  27 // A BrowserWindow used for testing FullscreenController. ----------------------
  28 class FullscreenControllerTestWindow : public TestBrowserWindow {
  29  public:
  30   // Simulate the window state with an enumeration.
  31   enum WindowState {
  32     NORMAL,
  33     FULLSCREEN,
  34     // No TO_ state for METRO_SNAP, the windows implementation is synchronous.
  35     METRO_SNAP,
  36     TO_NORMAL,
  37     TO_FULLSCREEN,
  38   };
  39
  40   FullscreenControllerTestWindow();
  41   virtual ~FullscreenControllerTestWindow() {}
  42
  43   // BrowserWindow Interface:
  44   virtual void EnterFullscreen(const GURL& url,
  45                                FullscreenExitBubbleType type) OVERRIDE;
  46   virtual void EnterFullscreen();
  47   virtual void ExitFullscreen() OVERRIDE;
  48   virtual bool IsFullscreen() const OVERRIDE;
  49 #if defined(OS_WIN)
  50   virtual void SetMetroSnapMode(bool enable) OVERRIDE;
  51   virtual bool IsInMetroSnapMode() const OVERRIDE;
  52 #endif
  53 #if defined(OS_MACOSX)
  54   virtual void EnterPresentationMode(
  55       const GURL& url,
  56       FullscreenExitBubbleType bubble_type) OVERRIDE;
  57   virtual void ExitPresentationMode() OVERRIDE;
  58   virtual bool InPresentationMode() OVERRIDE;
  59 #endif
  60
  61   static const char* GetWindowStateString(WindowState state);
  62   WindowState state() const { return state_; }
  63   void set_browser(Browser* browser) { browser_ = browser; }
  64   void set_reentrant(bool value) { reentrant_ = value; }
  65   bool reentrant() const { return reentrant_; }
  66
  67   // Simulates the window changing state.
  68   void ChangeWindowFullscreenState();
  69   // Calls ChangeWindowFullscreenState() if |reentrant_| is true.
  70   void ChangeWindowFullscreenStateIfReentrant();
  71
  72  private:
  73   WindowState state_;
  74   bool mac_presentation_mode_;
  75   Browser* browser_;
  76
  77   // Causes reentrant calls to be made by calling
  78   // browser_->WindowFullscreenStateChanged() from the BrowserWindow
  79   // interface methods.
  80   bool reentrant_;
  81 };
  82
  83 FullscreenControllerTestWindow::FullscreenControllerTestWindow()
  84     : state_(NORMAL),
  85       mac_presentation_mode_(false),
  86       browser_(NULL),
  87       reentrant_(false) {
  88 }
  89
  90 void FullscreenControllerTestWindow::EnterFullscreen(
  91     const GURL& url, FullscreenExitBubbleType type) {
  92   EnterFullscreen();
  93 }
  94
  95 void FullscreenControllerTestWindow::EnterFullscreen() {
  96   if (!IsFullscreen()) {
  97     state_ = TO_FULLSCREEN;
  98     ChangeWindowFullscreenStateIfReentrant();
  99   }
 100 }
 101
 102 void FullscreenControllerTestWindow::ExitFullscreen() {
 103   if (IsFullscreen()) {
 104     state_ = TO_NORMAL;
 105     mac_presentation_mode_ = false;
 106     ChangeWindowFullscreenStateIfReentrant();
 107   }
 108 }
 109
 110 bool FullscreenControllerTestWindow::IsFullscreen() const {
 111 #if defined(OS_MACOSX)
 112   return state_ == FULLSCREEN || state_ == TO_FULLSCREEN;
 113 #else
 114   return state_ == FULLSCREEN || state_ == TO_NORMAL;
 115 #endif
 116 }
 117
 118 #if defined(OS_WIN)
 119 void FullscreenControllerTestWindow::SetMetroSnapMode(bool enable) {
 120   if (enable != IsInMetroSnapMode()) {
 121     if (enable)
 122       state_ = METRO_SNAP;
 123     else
 124       state_ = NORMAL;
 125   }
 126   ChangeWindowFullscreenStateIfReentrant();
 127 }
 128
 129 bool FullscreenControllerTestWindow::IsInMetroSnapMode() const {
 130   return state_ == METRO_SNAP;
 131 }
 132 #endif
 133
 134 #if defined(OS_MACOSX)
 135 void FullscreenControllerTestWindow::EnterPresentationMode(
 136     const GURL& url,
 137     FullscreenExitBubbleType bubble_type) {
 138   mac_presentation_mode_ = true;
 139   EnterFullscreen();
 140 }
 141
 142 void FullscreenControllerTestWindow::ExitPresentationMode() {
 143   if (InPresentationMode()) {
 144     mac_presentation_mode_ = false;
 145     ExitFullscreen();
 146   }
 147 }
 148
 149 bool FullscreenControllerTestWindow::InPresentationMode() {
 150   return mac_presentation_mode_;
 151 }
 152 #endif
 153
 154 // static
 155 const char* FullscreenControllerTestWindow::GetWindowStateString(
 156     WindowState state) {
 157   switch (state) {
 158     case NORMAL:
 159       return "NORMAL";
 160     case FULLSCREEN:
 161       return "FULLSCREEN";
 162     case METRO_SNAP:
 163       return "METRO_SNAP";
 164     case TO_FULLSCREEN:
 165       return "TO_FULLSCREEN";
 166     case TO_NORMAL:
 167       return "TO_NORMAL";
 168     default:
 169       NOTREACHED() << "No string for state " << state;
 170       return "WindowState-Unknown";
 171   }
 172 }
 173
 174 void FullscreenControllerTestWindow::ChangeWindowFullscreenState() {
 175   // Several states result in "no operation" intentionally. The tests
 176   // assume that all possible states and event pairs can be tested, even
 177   // though window managers will not generate all of these.
 178   switch (state_) {
 179     case NORMAL:
 180       break;
 181     case FULLSCREEN:
 182       break;
 183     case METRO_SNAP:
 184       break;
 185     case TO_FULLSCREEN:
 186       state_ = FULLSCREEN;
 187       break;
 188     case TO_NORMAL:
 189       state_ = NORMAL;
 190       break;
 191     default:
 192       NOTREACHED();
 193   }
 194   // Emit a change event from every state to ensure the Fullscreen Controller
 195   // handles it in all circumstances.
 196   browser_->WindowFullscreenStateChanged();
 197 }
 198
 199 void FullscreenControllerTestWindow::ChangeWindowFullscreenStateIfReentrant() {
 200   if (reentrant_)
 201     ChangeWindowFullscreenState();
 202 }
 203
 204 // Unit test fixture testing Fullscreen Controller through its states. ---------
 205 class FullscreenControllerStateUnitTest : public BrowserWithTestWindowTest,
 206                                           public FullscreenControllerStateTest {
 207  public:
 208   FullscreenControllerStateUnitTest();
 209
 210   // FullscreenControllerStateTest:
 211   virtual void SetUp() OVERRIDE;
 212   virtual void ChangeWindowFullscreenState() OVERRIDE;
 213   virtual const char* GetWindowStateString() OVERRIDE;
 214   virtual void VerifyWindowState() OVERRIDE;
 215
 216  protected:
 217   // FullscreenControllerStateTest:
 218   virtual bool ShouldSkipStateAndEventPair(State state, Event event) OVERRIDE;
 219   virtual void TestStateAndEvent(State state,
 220                                  Event event,
 221                                  bool reentrant) OVERRIDE;
 222   virtual Browser* GetBrowser() OVERRIDE;
 223   FullscreenControllerTestWindow* window_;
 224 };
 225
 226 FullscreenControllerStateUnitTest::FullscreenControllerStateUnitTest ()
 227     : window_(NULL) {
 228 }
 229
 230 void FullscreenControllerStateUnitTest::SetUp() {
 231   window_ = new FullscreenControllerTestWindow();
 232   set_window(window_);  // BrowserWithTestWindowTest takes ownership.
 233   BrowserWithTestWindowTest::SetUp();
 234   window_->set_browser(browser());
 235 }
 236
 237 void FullscreenControllerStateUnitTest::ChangeWindowFullscreenState() {
 238   window_->ChangeWindowFullscreenState();
 239 }
 240
 241 const char* FullscreenControllerStateUnitTest::GetWindowStateString() {
 242   return FullscreenControllerTestWindow::GetWindowStateString(window_->state());
 243 }
 244
 245 void FullscreenControllerStateUnitTest::VerifyWindowState() {
 246   switch (state_) {
 247     case STATE_NORMAL:
 248       EXPECT_EQ(FullscreenControllerTestWindow::NORMAL,
 249                 window_->state()) << GetAndClearDebugLog();
 250       break;
 251     case STATE_BROWSER_FULLSCREEN_NO_CHROME:
 252       EXPECT_EQ(FullscreenControllerTestWindow::FULLSCREEN,
 253                 window_->state()) << GetAndClearDebugLog();
 254       break;
 255 #if defined(OS_WIN)
 256     case STATE_METRO_SNAP:
 257       EXPECT_EQ(FullscreenControllerTestWindow::METRO_SNAP,
 258                 window_->state()) << GetAndClearDebugLog();
 259       break;
 260 #endif
 261     case STATE_TAB_FULLSCREEN:
 262       EXPECT_EQ(FullscreenControllerTestWindow::FULLSCREEN,
 263                 window_->state()) << GetAndClearDebugLog();
 264       break;
 265     case STATE_TAB_BROWSER_FULLSCREEN:
 266       EXPECT_EQ(FullscreenControllerTestWindow::FULLSCREEN,
 267                 window_->state()) << GetAndClearDebugLog();
 268       break;
 269     case STATE_TO_NORMAL:
 270       EXPECT_EQ(FullscreenControllerTestWindow::TO_NORMAL,
 271                 window_->state()) << GetAndClearDebugLog();
 272       break;
 273     case STATE_TO_BROWSER_FULLSCREEN_NO_CHROME:
 274       EXPECT_EQ(FullscreenControllerTestWindow::TO_FULLSCREEN,
 275                 window_->state()) << GetAndClearDebugLog();
 276       break;
 277     case STATE_TO_TAB_FULLSCREEN:
 278       EXPECT_EQ(FullscreenControllerTestWindow::TO_FULLSCREEN,
 279                 window_->state()) << GetAndClearDebugLog();
 280       break;
 281     default:
 282       NOTREACHED() << GetAndClearDebugLog();
 283   }
 284
 285   FullscreenControllerStateTest::VerifyWindowState();
 286 }
 287
 288 bool FullscreenControllerStateUnitTest::ShouldSkipStateAndEventPair(
 289     State state, Event event) {
 290 #if defined(OS_MACOSX)
 291   // TODO(scheib) Toggle, Window Event, Toggle, Toggle on Mac as exposed by
 292   // test *.STATE_TO_NORMAL__TOGGLE_FULLSCREEN runs interactively and exits to
 293   // Normal. This doesn't appear to be the desired result, and would add
 294   // too much complexity to mimic in our simple FullscreenControllerTestWindow.
 295   // http://crbug.com/156968
 296   if ((state == STATE_TO_NORMAL ||
 297        state == STATE_TO_BROWSER_FULLSCREEN_NO_CHROME ||
 298        state == STATE_TO_TAB_FULLSCREEN) &&
 299       event == TOGGLE_FULLSCREEN)
 300     return true;
 301 #endif
 302
 303   return FullscreenControllerStateTest::ShouldSkipStateAndEventPair(state,
 304                                                                     event);
 305 }
 306
 307 void FullscreenControllerStateUnitTest::TestStateAndEvent(State state,
 308                                                           Event event,
 309                                                           bool reentrant) {
 310   window_->set_reentrant(reentrant);
 311   FullscreenControllerStateTest::TestStateAndEvent(state, event, reentrant);
 312 }
 313
 314 Browser* FullscreenControllerStateUnitTest::GetBrowser() {
 315   return BrowserWithTestWindowTest::browser();
 316 }
 317
 318 // Tests -----------------------------------------------------------------------
 319
 320 #define TEST_EVENT_INNER(state, event, reentrant, reentrant_id) \
 321     TEST_F(FullscreenControllerStateUnitTest, \
 322            state##__##event##reentrant_id) { \
 323       AddTab(browser(), GURL(chrome::kAboutBlankURL)); \
 324       ASSERT_NO_FATAL_FAILURE(TestStateAndEvent(state, event, reentrant)) \
 325           << GetAndClearDebugLog(); \
 326     }
 327     // Progress of tests can be examined by inserting the following line:
 328     // LOG(INFO) << GetAndClearDebugLog(); }
 329
 330 #define TEST_EVENT(state, event) \
 331     TEST_EVENT_INNER(state, event, false, ); \
 332     TEST_EVENT_INNER(state, event, true, _Reentrant);
 333
 334 // Individual tests for each pair of state and event:
 335
 336 TEST_EVENT(STATE_NORMAL, TOGGLE_FULLSCREEN);
 337 TEST_EVENT(STATE_NORMAL, TAB_FULLSCREEN_TRUE);
 338 TEST_EVENT(STATE_NORMAL, TAB_FULLSCREEN_FALSE);
 339 #if defined(OS_WIN)
 340 TEST_EVENT(STATE_NORMAL, METRO_SNAP_TRUE);
 341 TEST_EVENT(STATE_NORMAL, METRO_SNAP_FALSE);
 342 #endif
 343 TEST_EVENT(STATE_NORMAL, BUBBLE_EXIT_LINK);
 344 TEST_EVENT(STATE_NORMAL, BUBBLE_ALLOW);
 345 TEST_EVENT(STATE_NORMAL, BUBBLE_DENY);
 346 TEST_EVENT(STATE_NORMAL, WINDOW_CHANGE);
 347
 348 TEST_EVENT(STATE_BROWSER_FULLSCREEN_NO_CHROME, TOGGLE_FULLSCREEN);
 349 TEST_EVENT(STATE_BROWSER_FULLSCREEN_NO_CHROME, TAB_FULLSCREEN_TRUE);
 350 TEST_EVENT(STATE_BROWSER_FULLSCREEN_NO_CHROME, TAB_FULLSCREEN_FALSE);
 351 #if defined(OS_WIN)
 352 TEST_EVENT(STATE_BROWSER_FULLSCREEN_NO_CHROME, METRO_SNAP_TRUE);
 353 TEST_EVENT(STATE_BROWSER_FULLSCREEN_NO_CHROME, METRO_SNAP_FALSE);
 354 #endif
 355 TEST_EVENT(STATE_BROWSER_FULLSCREEN_NO_CHROME, BUBBLE_EXIT_LINK);
 356 TEST_EVENT(STATE_BROWSER_FULLSCREEN_NO_CHROME, BUBBLE_ALLOW);
 357 TEST_EVENT(STATE_BROWSER_FULLSCREEN_NO_CHROME, BUBBLE_DENY);
 358 TEST_EVENT(STATE_BROWSER_FULLSCREEN_NO_CHROME, WINDOW_CHANGE);
 359
 360 #if defined(OS_WIN)
 361 TEST_EVENT(STATE_METRO_SNAP, TOGGLE_FULLSCREEN);
 362 TEST_EVENT(STATE_METRO_SNAP, TAB_FULLSCREEN_TRUE);
 363 TEST_EVENT(STATE_METRO_SNAP, TAB_FULLSCREEN_FALSE);
 364 TEST_EVENT(STATE_METRO_SNAP, METRO_SNAP_TRUE);
 365 TEST_EVENT(STATE_METRO_SNAP, METRO_SNAP_FALSE);
 366 TEST_EVENT(STATE_METRO_SNAP, BUBBLE_EXIT_LINK);
 367 TEST_EVENT(STATE_METRO_SNAP, BUBBLE_ALLOW);
 368 TEST_EVENT(STATE_METRO_SNAP, BUBBLE_DENY);
 369 TEST_EVENT(STATE_METRO_SNAP, WINDOW_CHANGE);
 370 #endif
 371
 372 TEST_EVENT(STATE_TAB_FULLSCREEN, TOGGLE_FULLSCREEN);
 373 TEST_EVENT(STATE_TAB_FULLSCREEN, TAB_FULLSCREEN_TRUE);
 374 TEST_EVENT(STATE_TAB_FULLSCREEN, TAB_FULLSCREEN_FALSE);
 375 #if defined(OS_WIN)
 376 TEST_EVENT(STATE_TAB_FULLSCREEN, METRO_SNAP_TRUE);
 377 TEST_EVENT(STATE_TAB_FULLSCREEN, METRO_SNAP_FALSE);
 378 #endif
 379 TEST_EVENT(STATE_TAB_FULLSCREEN, BUBBLE_EXIT_LINK);
 380 TEST_EVENT(STATE_TAB_FULLSCREEN, BUBBLE_ALLOW);
 381 TEST_EVENT(STATE_TAB_FULLSCREEN, BUBBLE_DENY);
 382 TEST_EVENT(STATE_TAB_FULLSCREEN, WINDOW_CHANGE);
 383
 384 TEST_EVENT(STATE_TAB_BROWSER_FULLSCREEN, TOGGLE_FULLSCREEN);
 385 TEST_EVENT(STATE_TAB_BROWSER_FULLSCREEN, TAB_FULLSCREEN_TRUE);
 386 TEST_EVENT(STATE_TAB_BROWSER_FULLSCREEN, TAB_FULLSCREEN_FALSE);
 387 #if defined(OS_WIN)
 388 TEST_EVENT(STATE_TAB_BROWSER_FULLSCREEN, METRO_SNAP_TRUE);
 389 TEST_EVENT(STATE_TAB_BROWSER_FULLSCREEN, METRO_SNAP_FALSE);
 390 #endif
 391 TEST_EVENT(STATE_TAB_BROWSER_FULLSCREEN, BUBBLE_EXIT_LINK);
 392 TEST_EVENT(STATE_TAB_BROWSER_FULLSCREEN, BUBBLE_ALLOW);
 393 TEST_EVENT(STATE_TAB_BROWSER_FULLSCREEN, BUBBLE_DENY);
 394 TEST_EVENT(STATE_TAB_BROWSER_FULLSCREEN, WINDOW_CHANGE);
 395
 396 TEST_EVENT(STATE_TO_NORMAL, TOGGLE_FULLSCREEN);
 397 TEST_EVENT(STATE_TO_NORMAL, TAB_FULLSCREEN_TRUE);
 398 TEST_EVENT(STATE_TO_NORMAL, TAB_FULLSCREEN_FALSE);
 399 #if defined(OS_WIN)
 400 TEST_EVENT(STATE_TO_NORMAL, METRO_SNAP_TRUE);
 401 TEST_EVENT(STATE_TO_NORMAL, METRO_SNAP_FALSE);
 402 #endif
 403 TEST_EVENT(STATE_TO_NORMAL, BUBBLE_EXIT_LINK);
 404 TEST_EVENT(STATE_TO_NORMAL, BUBBLE_ALLOW);
 405 TEST_EVENT(STATE_TO_NORMAL, BUBBLE_DENY);
 406 TEST_EVENT(STATE_TO_NORMAL, WINDOW_CHANGE);
 407
 408 TEST_EVENT(STATE_TO_BROWSER_FULLSCREEN_NO_CHROME, TOGGLE_FULLSCREEN);
 409 TEST_EVENT(STATE_TO_BROWSER_FULLSCREEN_NO_CHROME, TAB_FULLSCREEN_TRUE);
 410 TEST_EVENT(STATE_TO_BROWSER_FULLSCREEN_NO_CHROME, TAB_FULLSCREEN_FALSE);
 411 #if defined(OS_WIN)
 412 TEST_EVENT(STATE_TO_BROWSER_FULLSCREEN_NO_CHROME, METRO_SNAP_TRUE);
 413 TEST_EVENT(STATE_TO_BROWSER_FULLSCREEN_NO_CHROME, METRO_SNAP_FALSE);
 414 #endif
 415 TEST_EVENT(STATE_TO_BROWSER_FULLSCREEN_NO_CHROME, BUBBLE_EXIT_LINK);
 416 TEST_EVENT(STATE_TO_BROWSER_FULLSCREEN_NO_CHROME, BUBBLE_ALLOW);
 417 TEST_EVENT(STATE_TO_BROWSER_FULLSCREEN_NO_CHROME, BUBBLE_DENY);
 418 TEST_EVENT(STATE_TO_BROWSER_FULLSCREEN_NO_CHROME, WINDOW_CHANGE);
 419
 420 TEST_EVENT(STATE_TO_TAB_FULLSCREEN, TOGGLE_FULLSCREEN);
 421 TEST_EVENT(STATE_TO_TAB_FULLSCREEN, TAB_FULLSCREEN_TRUE);
 422 TEST_EVENT(STATE_TO_TAB_FULLSCREEN, TAB_FULLSCREEN_FALSE);
 423 #if defined(OS_WIN)
 424 TEST_EVENT(STATE_TO_TAB_FULLSCREEN, METRO_SNAP_TRUE);
 425 TEST_EVENT(STATE_TO_TAB_FULLSCREEN, METRO_SNAP_FALSE);
 426 #endif
 427 TEST_EVENT(STATE_TO_TAB_FULLSCREEN, BUBBLE_EXIT_LINK);
 428 TEST_EVENT(STATE_TO_TAB_FULLSCREEN, BUBBLE_ALLOW);
 429 TEST_EVENT(STATE_TO_TAB_FULLSCREEN, BUBBLE_DENY);
 430 TEST_EVENT(STATE_TO_TAB_FULLSCREEN, WINDOW_CHANGE);
 431
 432 // Specific one-off tests for known issues:
 433
 434 // TODO(scheib) Toggling Tab fullscreen while pending Tab or
 435 // Browser fullscreen is broken currently http://crbug.com/154196
 436 TEST_F(FullscreenControllerStateUnitTest,
 437        DISABLED_ToggleTabWhenPendingBrowser) {
 438 #if !defined(OS_WIN)  // Only possible without reentrancy
 439   AddTab(browser(), GURL(chrome::kAboutBlankURL));
 440   ASSERT_NO_FATAL_FAILURE(
 441       TransitionToState(STATE_TO_BROWSER_FULLSCREEN_NO_CHROME))
 442       << GetAndClearDebugLog();
 443
 444   ASSERT_TRUE(InvokeEvent(TAB_FULLSCREEN_TRUE)) << GetAndClearDebugLog();
 445   ASSERT_TRUE(InvokeEvent(TAB_FULLSCREEN_FALSE)) << GetAndClearDebugLog();
 446   ASSERT_TRUE(InvokeEvent(WINDOW_CHANGE)) << GetAndClearDebugLog();
 447 #endif
 448 }
 449
 450 // TODO(scheib) Toggling Tab fullscreen while pending Tab or
 451 // Browser fullscreen is broken currently http://crbug.com/154196
 452 TEST_F(FullscreenControllerStateUnitTest, DISABLED_ToggleTabWhenPendingTab) {
 453 #if !defined(OS_WIN)  // Only possible without reentrancy
 454   AddTab(browser(), GURL(chrome::kAboutBlankURL));
 455   ASSERT_NO_FATAL_FAILURE(
 456       TransitionToState(STATE_TO_TAB_FULLSCREEN))
 457       << GetAndClearDebugLog();
 458
 459   ASSERT_TRUE(InvokeEvent(TAB_FULLSCREEN_TRUE)) << GetAndClearDebugLog();
 460   ASSERT_TRUE(InvokeEvent(TAB_FULLSCREEN_FALSE)) << GetAndClearDebugLog();
 461   ASSERT_TRUE(InvokeEvent(WINDOW_CHANGE)) << GetAndClearDebugLog();
 462 #endif
 463 }
 464
 465 // Soak tests:
 466
 467 // Tests all states with all permutations of multiple events to detect lingering
 468 // state issues that would bleed over to other states.
 469 // I.E. for each state test all combinations of events E1, E2, E3.
 470 //
 471 // This produces coverage for event sequences that may happen normally but
 472 // would not be exposed by traversing to each state via TransitionToState().
 473 // TransitionToState() always takes the same path even when multiple paths
 474 // exist.
 475 TEST_F(FullscreenControllerStateUnitTest, TransitionsForEachState) {
 476   // A tab is needed for tab fullscreen.
 477   AddTab(browser(), GURL(chrome::kAboutBlankURL));
 478   TestTransitionsForEachState();
 479   // Progress of test can be examined via LOG(INFO) << GetAndClearDebugLog();
 480 }
 481