chrome/browser/ui/toolbar/recent_tabs_sub_menu_model_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 "chrome/browser/ui/toolbar/recent_tabs_sub_menu_model.h"
   6
   7 #include "base/command_line.h"
   8 #include "base/run_loop.h"
   9 #include "chrome/app/chrome_command_ids.h"
  10 #include "chrome/browser/sessions/session_service.h"
  11 #include "chrome/browser/sessions/session_service_factory.h"
  12 #include "chrome/browser/sessions/session_types.h"
  13 #include "chrome/browser/sessions/persistent_tab_restore_service.h"
  14 #include "chrome/browser/sessions/tab_restore_service_factory.h"
  15 #include "chrome/browser/sync/glue/synced_session.h"
  16 #include "chrome/browser/sync/profile_sync_service_mock.h"
  17 #include "chrome/browser/sync/sessions/sessions_sync_manager.h"
  18 #include "chrome/browser/ui/browser.h"
  19 #include "chrome/browser/ui/browser_tabstrip.h"
  20 #include "chrome/browser/ui/tabs/tab_strip_model.h"
  21 #include "chrome/browser/ui/toolbar/recent_tabs_builder_test_helper.h"
  22 #include "chrome/common/chrome_switches.h"
  23 #include "chrome/test/base/browser_with_test_window_test.h"
  24 #include "chrome/test/base/menu_model_test.h"
  25 #include "chrome/test/base/testing_profile.h"
  26 #include "components/sessions/serialized_navigation_entry_test_helper.h"
  27 #include "content/public/browser/browser_thread.h"
  28 #include "grit/generated_resources.h"
  29 #include "sync/api/fake_sync_change_processor.h"
  30 #include "sync/api/sync_error_factory_mock.h"
  31 #include "testing/gmock/include/gmock/gmock.h"
  32 #include "testing/gtest/include/gtest/gtest.h"
  33
  34 namespace {
  35
  36 // This copies parts of MenuModelTest::Delegate and combines them with the
  37 // RecentTabsSubMenuModel since RecentTabsSubMenuModel is a
  38 // SimpleMenuModel::Delegate and not just derived from SimpleMenuModel.
  39 class TestRecentTabsSubMenuModel : public RecentTabsSubMenuModel {
  40  public:
  41   TestRecentTabsSubMenuModel(ui::AcceleratorProvider* provider,
  42                              Browser* browser,
  43                              browser_sync::OpenTabsUIDelegate* delegate)
  44       : RecentTabsSubMenuModel(provider, browser, delegate),
  45         execute_count_(0),
  46         enable_count_(0) {
  47   }
  48
  49   // Testing overrides to ui::SimpleMenuModel::Delegate:
  50   virtual bool IsCommandIdEnabled(int command_id) const OVERRIDE {
  51     bool val = RecentTabsSubMenuModel::IsCommandIdEnabled(command_id);
  52     if (val)
  53       ++enable_count_;
  54     return val;
  55   }
  56
  57   virtual void ExecuteCommand(int command_id, int event_flags) OVERRIDE {
  58     ++execute_count_;
  59   }
  60
  61   int execute_count() const { return execute_count_; }
  62   int enable_count() const { return enable_count_; }
  63
  64  private:
  65   int execute_count_;
  66   int mutable enable_count_;  // Mutable because IsCommandIdEnabledAt is const.
  67
  68   DISALLOW_COPY_AND_ASSIGN(TestRecentTabsSubMenuModel);
  69 };
  70
  71 class TestRecentTabsMenuModelDelegate : public ui::MenuModelDelegate {
  72  public:
  73   explicit TestRecentTabsMenuModelDelegate(ui::MenuModel* model)
  74       : model_(model),
  75         got_changes_(false) {
  76     model_->SetMenuModelDelegate(this);
  77   }
  78
  79   virtual ~TestRecentTabsMenuModelDelegate() {
  80     model_->SetMenuModelDelegate(NULL);
  81   }
  82
  83   // ui::MenuModelDelegate implementation:
  84
  85   virtual void OnIconChanged(int index) OVERRIDE {
  86   }
  87
  88   virtual void OnMenuStructureChanged() OVERRIDE {
  89     got_changes_ = true;
  90   }
  91
  92   bool got_changes() const { return got_changes_; }
  93
  94  private:
  95   ui::MenuModel* model_;
  96   bool got_changes_;
  97
  98   DISALLOW_COPY_AND_ASSIGN(TestRecentTabsMenuModelDelegate);
  99 };
 100
 101 class DummyRouter : public browser_sync::LocalSessionEventRouter {
 102  public:
 103   virtual ~DummyRouter() {}
 104   virtual void StartRoutingTo(
 105       browser_sync::LocalSessionEventHandler* handler) OVERRIDE {}
 106   virtual void Stop() OVERRIDE {}
 107 };
 108
 109 }  // namespace
 110
 111 class RecentTabsSubMenuModelTest
 112     : public BrowserWithTestWindowTest,
 113       public browser_sync::SessionsSyncManager::SyncInternalApiDelegate {
 114  public:
 115   RecentTabsSubMenuModelTest()
 116       : sync_service_(&testing_profile_) {
 117     manager_.reset(new browser_sync::SessionsSyncManager(
 118         &testing_profile_,
 119         this,
 120         scoped_ptr<browser_sync::LocalSessionEventRouter>(
 121             new DummyRouter())));
 122     manager_->MergeDataAndStartSyncing(
 123         syncer::SESSIONS,
 124         syncer::SyncDataList(),
 125         scoped_ptr<syncer::SyncChangeProcessor>(
 126           new syncer::FakeSyncChangeProcessor),
 127         scoped_ptr<syncer::SyncErrorFactory>(
 128             new syncer::SyncErrorFactoryMock));
 129   }
 130
 131   void WaitForLoadFromLastSession() {
 132     content::BrowserThread::GetBlockingPool()->FlushForTesting();
 133     base::RunLoop().RunUntilIdle();
 134     content::BrowserThread::GetBlockingPool()->FlushForTesting();
 135   }
 136
 137   static KeyedService* GetTabRestoreService(
 138       content::BrowserContext* browser_context) {
 139     // Ownership is tranfered to the profile.
 140     return new PersistentTabRestoreService(
 141         Profile::FromBrowserContext(browser_context), NULL);
 142   }
 143
 144
 145   browser_sync::OpenTabsUIDelegate* GetOpenTabsDelegate() {
 146     return manager_.get();
 147   }
 148
 149   void RegisterRecentTabs(RecentTabsBuilderTestHelper* helper) {
 150     helper->ExportToSessionsSyncManager(manager_.get());
 151   }
 152
 153   virtual scoped_ptr<browser_sync::DeviceInfo> GetLocalDeviceInfo()
 154       const OVERRIDE {
 155     return scoped_ptr<browser_sync::DeviceInfo>(
 156         new browser_sync::DeviceInfo(GetLocalSyncCacheGUID(),
 157                        "Test Machine",
 158                        "Chromium 10k",
 159                        "Chrome 10k",
 160                        sync_pb::SyncEnums_DeviceType_TYPE_LINUX));
 161   }
 162
 163   virtual std::string GetLocalSyncCacheGUID() const OVERRIDE {
 164     return "RecentTabsSubMenuModelTest";
 165   }
 166
 167  private:
 168   TestingProfile testing_profile_;
 169   testing::NiceMock<ProfileSyncServiceMock> sync_service_;
 170
 171   scoped_ptr<browser_sync::SessionsSyncManager> manager_;
 172 };
 173
 174 // Test disabled "Recently closed" header with no foreign tabs.
 175 TEST_F(RecentTabsSubMenuModelTest, NoTabs) {
 176   TestRecentTabsSubMenuModel model(NULL, browser(), NULL);
 177
 178   // Expected menu:
 179   // Menu index  Menu items
 180   // ---------------------------------------------
 181   // 0           Recently closed header (disabled)
 182   // 1           <separator>
 183   // 2           No tabs from other Devices
 184
 185   int num_items = model.GetItemCount();
 186   EXPECT_EQ(3, num_items);
 187   EXPECT_FALSE(model.IsEnabledAt(0));
 188   EXPECT_FALSE(model.IsEnabledAt(2));
 189   EXPECT_EQ(0, model.enable_count());
 190
 191   EXPECT_EQ(NULL, model.GetLabelFontListAt(0));
 192   EXPECT_EQ(NULL, model.GetLabelFontListAt(1));
 193   EXPECT_EQ(NULL, model.GetLabelFontListAt(2));
 194
 195   std::string url;
 196   base::string16 title;
 197   EXPECT_FALSE(model.GetURLAndTitleForItemAtIndex(0, &url, &title));
 198   EXPECT_FALSE(model.GetURLAndTitleForItemAtIndex(1, &url, &title));
 199   EXPECT_FALSE(model.GetURLAndTitleForItemAtIndex(2, &url, &title));
 200 }
 201
 202 // Test enabled "Recently closed" header with no foreign tabs.
 203 TEST_F(RecentTabsSubMenuModelTest, RecentlyClosedTabsFromCurrentSession) {
 204   TabRestoreServiceFactory::GetInstance()->SetTestingFactory(
 205       profile(), RecentTabsSubMenuModelTest::GetTabRestoreService);
 206
 207   // Add 2 tabs and close them.
 208   AddTab(browser(), GURL("http://foo/1"));
 209   AddTab(browser(), GURL("http://foo/2"));
 210   browser()->tab_strip_model()->CloseAllTabs();
 211
 212   TestRecentTabsSubMenuModel model(NULL, browser(), NULL);
 213   // Expected menu:
 214   // Menu index  Menu items
 215   // --------------------------------------
 216   // 0           Recently closed header
 217   // 1           <tab for http://foo/2>
 218   // 2           <tab for http://foo/1>
 219   // 3           <separator>
 220   // 4           No tabs from other Devices
 221   int num_items = model.GetItemCount();
 222   EXPECT_EQ(5, num_items);
 223   EXPECT_FALSE(model.IsEnabledAt(0));
 224   EXPECT_TRUE(model.IsEnabledAt(1));
 225   EXPECT_TRUE(model.IsEnabledAt(2));
 226   model.ActivatedAt(1);
 227   model.ActivatedAt(2);
 228   EXPECT_FALSE(model.IsEnabledAt(4));
 229   EXPECT_EQ(2, model.enable_count());
 230   EXPECT_EQ(2, model.execute_count());
 231
 232   EXPECT_TRUE(model.GetLabelFontListAt(0) != NULL);
 233   EXPECT_EQ(NULL, model.GetLabelFontListAt(1));
 234   EXPECT_EQ(NULL, model.GetLabelFontListAt(2));
 235   EXPECT_EQ(NULL, model.GetLabelFontListAt(3));
 236   EXPECT_EQ(NULL, model.GetLabelFontListAt(4));
 237
 238   std::string url;
 239   base::string16 title;
 240   EXPECT_FALSE(model.GetURLAndTitleForItemAtIndex(0, &url, &title));
 241   EXPECT_TRUE(model.GetURLAndTitleForItemAtIndex(1, &url, &title));
 242   EXPECT_TRUE(model.GetURLAndTitleForItemAtIndex(2, &url, &title));
 243   EXPECT_FALSE(model.GetURLAndTitleForItemAtIndex(3, &url, &title));
 244   EXPECT_FALSE(model.GetURLAndTitleForItemAtIndex(4, &url, &title));
 245 }
 246
 247 // TODO(sail): enable this test when dynamic model is enabled in
 248 // RecentTabsSubMenuModel.
 249 #if defined(OS_MACOSX)
 250 #define MAYBE_RecentlyClosedTabsAndWindowsFromLastSession \
 251     DISABLED_RecentlyClosedTabsAndWindowsFromLastSession
 252 #else
 253 #define MAYBE_RecentlyClosedTabsAndWindowsFromLastSession \
 254     RecentlyClosedTabsAndWindowsFromLastSession
 255 #endif
 256 TEST_F(RecentTabsSubMenuModelTest,
 257        MAYBE_RecentlyClosedTabsAndWindowsFromLastSession) {
 258   TabRestoreServiceFactory::GetInstance()->SetTestingFactory(
 259       profile(), RecentTabsSubMenuModelTest::GetTabRestoreService);
 260
 261   // Add 2 tabs and close them.
 262   AddTab(browser(), GURL("http://wnd/tab0"));
 263   AddTab(browser(), GURL("http://wnd/tab1"));
 264   browser()->tab_strip_model()->CloseAllTabs();
 265
 266   // Create a SessionService for the profile (profile owns the service) and add
 267   // a window with a tab to this session.
 268   SessionService* session_service = new SessionService(profile());
 269   SessionServiceFactory::SetForTestProfile(profile(), session_service);
 270   SessionID tab_id;
 271   SessionID window_id;
 272   session_service->SetWindowType(
 273       window_id, Browser::TYPE_TABBED, SessionService::TYPE_NORMAL);
 274   session_service->SetTabWindow(window_id, tab_id);
 275   session_service->SetTabIndexInWindow(window_id, tab_id, 0);
 276   session_service->SetSelectedTabInWindow(window_id, 0);
 277   session_service->UpdateTabNavigation(
 278       window_id, tab_id,
 279       sessions::SerializedNavigationEntryTestHelper::CreateNavigation(
 280           "http://wnd1/tab0", "title"));
 281   // Set this, otherwise previous session won't be loaded.
 282   profile()->set_last_session_exited_cleanly(false);
 283   // Move this session to the last so that TabRestoreService will load it as the
 284   // last session.
 285   SessionServiceFactory::GetForProfile(profile())->
 286       MoveCurrentSessionToLastSession();
 287
 288   // Create a new TabRestoreService so that it'll load the recently closed tabs
 289   // and windows afresh.
 290   TabRestoreServiceFactory::GetInstance()->SetTestingFactory(
 291       profile(), RecentTabsSubMenuModelTest::GetTabRestoreService);
 292   // Let the shutdown of previous TabRestoreService run.
 293   content::BrowserThread::GetBlockingPool()->FlushForTesting();
 294
 295   TestRecentTabsSubMenuModel model(NULL, browser(), NULL);
 296   TestRecentTabsMenuModelDelegate delegate(&model);
 297   EXPECT_FALSE(delegate.got_changes());
 298
 299   // Expected menu before tabs/windows from last session are loaded:
 300   // Menu index  Menu items
 301   // ----------------------------------------------------------------
 302   // 0           Recently closed header
 303   // 1           <separator>
 304   // 2           No tabs from other Devices
 305
 306   int num_items = model.GetItemCount();
 307   EXPECT_EQ(3, num_items);
 308   EXPECT_FALSE(model.IsEnabledAt(0));
 309   EXPECT_EQ(ui::MenuModel::TYPE_SEPARATOR, model.GetTypeAt(1));
 310   EXPECT_FALSE(model.IsEnabledAt(2));
 311   EXPECT_EQ(0, model.enable_count());
 312
 313   // Wait for tabs from last session to be loaded.
 314   WaitForLoadFromLastSession();
 315
 316   // Expected menu after tabs/windows from last session are loaded:
 317   // Menu index  Menu items
 318   // --------------------------------------------------------------
 319   // 0           Recently closed header
 320   // 1           <window for the tab http://wnd1/tab0>
 321   // 2           <tab for http://wnd0/tab1>
 322   // 3           <tab for http://wnd0/tab0>
 323   // 4           <separator>
 324   // 5           No tabs from other Devices
 325
 326   EXPECT_TRUE(delegate.got_changes());
 327
 328   num_items = model.GetItemCount();
 329   EXPECT_EQ(6, num_items);
 330   EXPECT_FALSE(model.IsEnabledAt(0));
 331   EXPECT_TRUE(model.IsEnabledAt(1));
 332   EXPECT_TRUE(model.IsEnabledAt(2));
 333   EXPECT_TRUE(model.IsEnabledAt(3));
 334   model.ActivatedAt(1);
 335   model.ActivatedAt(2);
 336   model.ActivatedAt(3);
 337   EXPECT_EQ(ui::MenuModel::TYPE_SEPARATOR, model.GetTypeAt(4));
 338   EXPECT_FALSE(model.IsEnabledAt(5));
 339   EXPECT_EQ(3, model.enable_count());
 340   EXPECT_EQ(3, model.execute_count());
 341
 342   EXPECT_TRUE(model.GetLabelFontListAt(0) != NULL);
 343   EXPECT_EQ(NULL, model.GetLabelFontListAt(1));
 344   EXPECT_EQ(NULL, model.GetLabelFontListAt(2));
 345   EXPECT_EQ(NULL, model.GetLabelFontListAt(3));
 346   EXPECT_EQ(NULL, model.GetLabelFontListAt(4));
 347   EXPECT_EQ(NULL, model.GetLabelFontListAt(5));
 348
 349   std::string url;
 350   base::string16 title;
 351   EXPECT_FALSE(model.GetURLAndTitleForItemAtIndex(0, &url, &title));
 352   EXPECT_FALSE(model.GetURLAndTitleForItemAtIndex(1, &url, &title));
 353   EXPECT_TRUE(model.GetURLAndTitleForItemAtIndex(2, &url, &title));
 354   EXPECT_TRUE(model.GetURLAndTitleForItemAtIndex(3, &url, &title));
 355   EXPECT_FALSE(model.GetURLAndTitleForItemAtIndex(4, &url, &title));
 356   EXPECT_FALSE(model.GetURLAndTitleForItemAtIndex(5, &url, &title));
 357 }
 358
 359 // Test disabled "Recently closed" header with multiple sessions, multiple
 360 // windows, and multiple enabled tabs from other devices.
 361 TEST_F(RecentTabsSubMenuModelTest, OtherDevices) {
 362   // Tabs are populated in decreasing timestamp.
 363   base::Time timestamp = base::Time::Now();
 364   const base::TimeDelta time_delta = base::TimeDelta::FromMinutes(10);
 365
 366   RecentTabsBuilderTestHelper recent_tabs_builder;
 367
 368   // Create 1st session : 1 window, 3 tabs
 369   recent_tabs_builder.AddSession();
 370   recent_tabs_builder.AddWindow(0);
 371   for (int i = 0; i < 3; ++i) {
 372     timestamp -= time_delta;
 373     recent_tabs_builder.AddTabWithInfo(0, 0, timestamp, base::string16());
 374   }
 375
 376   // Create 2nd session : 2 windows, 1 tab in 1st window, 2 tabs in 2nd window
 377   recent_tabs_builder.AddSession();
 378   recent_tabs_builder.AddWindow(1);
 379   recent_tabs_builder.AddWindow(1);
 380   timestamp -= time_delta;
 381   recent_tabs_builder.AddTabWithInfo(1, 0, timestamp, base::string16());
 382   timestamp -= time_delta;
 383   recent_tabs_builder.AddTabWithInfo(1, 1, timestamp, base::string16());
 384   timestamp -= time_delta;
 385   recent_tabs_builder.AddTabWithInfo(1, 1, timestamp, base::string16());
 386
 387   RegisterRecentTabs(&recent_tabs_builder);
 388
 389   // Verify that data is populated correctly in RecentTabsSubMenuModel.
 390   // Expected menu:
 391   // - first inserted tab is most recent and hence is top
 392   // Menu index  Menu items
 393   // -----------------------------------------------------
 394   // 0           Recently closed header (disabled)
 395   // 1           <separator>
 396   // 2           <section header for 1st session>
 397   // 3-5         <3 tabs of the only window of session 0>
 398   // 6           <separator>
 399   // 7           <section header for 2nd session>
 400   // 8           <the only tab of window 0 of session 1>
 401   // 9-10        <2 tabs of window 1 of session 2>
 402   // 11          <separator>
 403   // 12          More...
 404
 405   TestRecentTabsSubMenuModel model(NULL, browser(), GetOpenTabsDelegate());
 406   int num_items = model.GetItemCount();
 407   EXPECT_EQ(13, num_items);
 408   model.ActivatedAt(0);
 409   EXPECT_FALSE(model.IsEnabledAt(0));
 410   model.ActivatedAt(3);
 411   EXPECT_TRUE(model.IsEnabledAt(3));
 412   model.ActivatedAt(4);
 413   EXPECT_TRUE(model.IsEnabledAt(4));
 414   model.ActivatedAt(5);
 415   EXPECT_TRUE(model.IsEnabledAt(5));
 416   model.ActivatedAt(8);
 417   EXPECT_TRUE(model.IsEnabledAt(8));
 418   model.ActivatedAt(9);
 419   EXPECT_TRUE(model.IsEnabledAt(9));
 420   model.ActivatedAt(10);
 421   EXPECT_TRUE(model.IsEnabledAt(10));
 422   EXPECT_TRUE(model.IsEnabledAt(12));
 423   EXPECT_EQ(7, model.enable_count());
 424   EXPECT_EQ(7, model.execute_count());
 425
 426   EXPECT_EQ(NULL, model.GetLabelFontListAt(0));
 427   EXPECT_EQ(NULL, model.GetLabelFontListAt(1));
 428   EXPECT_TRUE(model.GetLabelFontListAt(2) != NULL);
 429   EXPECT_EQ(NULL, model.GetLabelFontListAt(3));
 430   EXPECT_EQ(NULL, model.GetLabelFontListAt(4));
 431   EXPECT_EQ(NULL, model.GetLabelFontListAt(5));
 432   EXPECT_EQ(NULL, model.GetLabelFontListAt(6));
 433   EXPECT_TRUE(model.GetLabelFontListAt(7) != NULL);
 434   EXPECT_EQ(NULL, model.GetLabelFontListAt(8));
 435   EXPECT_EQ(NULL, model.GetLabelFontListAt(9));
 436   EXPECT_EQ(NULL, model.GetLabelFontListAt(10));
 437   EXPECT_EQ(NULL, model.GetLabelFontListAt(11));
 438   EXPECT_EQ(NULL, model.GetLabelFontListAt(12));
 439
 440   std::string url;
 441   base::string16 title;
 442   EXPECT_FALSE(model.GetURLAndTitleForItemAtIndex(0, &url, &title));
 443   EXPECT_FALSE(model.GetURLAndTitleForItemAtIndex(1, &url, &title));
 444   EXPECT_FALSE(model.GetURLAndTitleForItemAtIndex(2, &url, &title));
 445   EXPECT_TRUE(model.GetURLAndTitleForItemAtIndex(3, &url, &title));
 446   EXPECT_TRUE(model.GetURLAndTitleForItemAtIndex(4, &url, &title));
 447   EXPECT_TRUE(model.GetURLAndTitleForItemAtIndex(5, &url, &title));
 448   EXPECT_FALSE(model.GetURLAndTitleForItemAtIndex(6, &url, &title));
 449   EXPECT_FALSE(model.GetURLAndTitleForItemAtIndex(7, &url, &title));
 450   EXPECT_TRUE(model.GetURLAndTitleForItemAtIndex(8, &url, &title));
 451   EXPECT_TRUE(model.GetURLAndTitleForItemAtIndex(9, &url, &title));
 452   EXPECT_TRUE(model.GetURLAndTitleForItemAtIndex(10, &url, &title));
 453   EXPECT_FALSE(model.GetURLAndTitleForItemAtIndex(11, &url, &title));
 454   EXPECT_FALSE(model.GetURLAndTitleForItemAtIndex(12, &url, &title));
 455 }
 456
 457 TEST_F(RecentTabsSubMenuModelTest, MaxSessionsAndRecency) {
 458   // Create 4 sessions : each session has 1 window with 1 tab each.
 459   RecentTabsBuilderTestHelper recent_tabs_builder;
 460   for (int s = 0; s < 4; ++s) {
 461     recent_tabs_builder.AddSession();
 462     recent_tabs_builder.AddWindow(s);
 463     recent_tabs_builder.AddTab(s, 0);
 464   }
 465   RegisterRecentTabs(&recent_tabs_builder);
 466
 467   // Verify that data is populated correctly in RecentTabsSubMenuModel.
 468   // Expected menu:
 469   // - max sessions is 3, so only 3 most-recent sessions will show.
 470   // Menu index  Menu items
 471   // ----------------------------------------------------------
 472   // 0           Recently closed header (disabled)
 473   // 1           <separator>
 474   // 2           <section header for 1st session>
 475   // 3           <the only tab of the only window of session 3>
 476   // 4           <separator>
 477   // 5           <section header for 2nd session>
 478   // 6           <the only tab of the only window of session 2>
 479   // 7           <separator>
 480   // 8           <section header for 3rd session>
 481   // 9           <the only tab of the only window of session 1>
 482   // 10          <separator>
 483   // 11          More...
 484
 485   TestRecentTabsSubMenuModel model(NULL, browser(), GetOpenTabsDelegate());
 486   int num_items = model.GetItemCount();
 487   EXPECT_EQ(12, num_items);
 488
 489   std::vector<base::string16> tab_titles =
 490       recent_tabs_builder.GetTabTitlesSortedByRecency();
 491   EXPECT_EQ(tab_titles[0], model.GetLabelAt(3));
 492   EXPECT_EQ(tab_titles[1], model.GetLabelAt(6));
 493   EXPECT_EQ(tab_titles[2], model.GetLabelAt(9));
 494 }
 495
 496 TEST_F(RecentTabsSubMenuModelTest, MaxTabsPerSessionAndRecency) {
 497   // Create a session: 2 windows with 5 tabs each.
 498   RecentTabsBuilderTestHelper recent_tabs_builder;
 499   recent_tabs_builder.AddSession();
 500   for (int w = 0; w < 2; ++w) {
 501     recent_tabs_builder.AddWindow(0);
 502     for (int t = 0; t < 5; ++t)
 503       recent_tabs_builder.AddTab(0, w);
 504   }
 505   RegisterRecentTabs(&recent_tabs_builder);
 506
 507   // Verify that data is populated correctly in RecentTabsSubMenuModel.
 508   // Expected menu:
 509   // - max tabs per session is 4, so only 4 most-recent tabs will show,
 510   //   independent of which window they came from.
 511   // Menu index  Menu items
 512   // ---------------------------------------------
 513   // 0           Recently closed header (disabled)
 514   // 1           <separator>
 515   // 2           <section header for session>
 516   // 3-6         <4 most-recent tabs of session>
 517   // 7           <separator>
 518   // 8           More...
 519
 520   TestRecentTabsSubMenuModel model(NULL, browser(), GetOpenTabsDelegate());
 521   int num_items = model.GetItemCount();
 522   EXPECT_EQ(9, num_items);
 523
 524   std::vector<base::string16> tab_titles =
 525       recent_tabs_builder.GetTabTitlesSortedByRecency();
 526   for (int i = 0; i < 4; ++i)
 527     EXPECT_EQ(tab_titles[i], model.GetLabelAt(i + 3));
 528 }
 529
 530 TEST_F(RecentTabsSubMenuModelTest, MaxWidth) {
 531   // Create 1 session with 1 window and 1 tab.
 532   RecentTabsBuilderTestHelper recent_tabs_builder;
 533   recent_tabs_builder.AddSession();
 534   recent_tabs_builder.AddWindow(0);
 535   recent_tabs_builder.AddTab(0, 0);
 536   RegisterRecentTabs(&recent_tabs_builder);
 537
 538   // Menu index  Menu items
 539   // ----------------------------------------------------------
 540   // 0           Recently closed header (disabled)
 541   // 1           <separator>
 542   // 2           <section header for 1st session>
 543   // 3           <the only tab of the only window of session 1>
 544   // 4           <separator>
 545   // 5           More...
 546
 547   TestRecentTabsSubMenuModel model(NULL, browser(), GetOpenTabsDelegate());
 548   EXPECT_EQ(6, model.GetItemCount());
 549   EXPECT_EQ(-1, model.GetMaxWidthForItemAtIndex(0));
 550   EXPECT_NE(-1, model.GetMaxWidthForItemAtIndex(1));
 551   EXPECT_NE(-1, model.GetMaxWidthForItemAtIndex(2));
 552   EXPECT_NE(-1, model.GetMaxWidthForItemAtIndex(3));
 553 }
 554
 555 TEST_F(RecentTabsSubMenuModelTest, MaxWidthNoDevices) {
 556   // Expected menu:
 557   // Menu index  Menu items
 558   // --------------------------------------------
 559   // 0           Recently closed heaer (disabled)
 560   // 1           <separator>
 561   // 2           No tabs from other Devices
 562
 563   TestRecentTabsSubMenuModel model(NULL, browser(), NULL);
 564   EXPECT_EQ(3, model.GetItemCount());
 565   EXPECT_EQ(-1, model.GetMaxWidthForItemAtIndex(0));
 566   EXPECT_NE(-1, model.GetMaxWidthForItemAtIndex(1));
 567   EXPECT_EQ(-1, model.GetMaxWidthForItemAtIndex(2));
 568 }