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chrome/browser/task_manager/task_manager_browsertest.cc

 // Copyright (c) 2011 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "chrome/browser/task_manager/task_manager.h"
 
 #include "base/file_path.h"
 #include "base/utf_string_conversions.h"
 #include "chrome/browser/background/background_contents_service.h"
 #include "chrome/browser/background/background_contents_service_factory.h"
 #include "chrome/browser/browser_process.h"
 #include "chrome/browser/extensions/extension_browsertest.h"
 #include "chrome/browser/extensions/extension_service.h"
 #include "chrome/browser/notifications/desktop_notification_service.h"
 #include "chrome/browser/notifications/notification.h"
 #include "chrome/browser/notifications/notification_test_util.h"
 #include "chrome/browser/notifications/notification_ui_manager.h"
 #include "chrome/browser/profiles/profile.h"
 #include "chrome/browser/tab_contents/confirm_infobar_delegate.h"
 #include "chrome/browser/tabs/tab_strip_model.h"
-#include "chrome/browser/task_manager/task_manager_browsertest_util.h"
 #include "chrome/browser/ui/browser.h"
 #include "chrome/browser/ui/browser_navigator.h"
 #include "chrome/browser/ui/browser_window.h"
 #include "chrome/browser/ui/tab_contents/tab_contents_wrapper.h"
 #include "chrome/common/chrome_notification_types.h"
 #include "chrome/common/extensions/extension.h"
 #include "chrome/test/in_process_browser_test.h"
 #include "chrome/test/ui_test_utils.h"
 #include "content/common/page_transition_types.h"
 #include "grit/generated_resources.h"
 #include "net/base/mock_host_resolver.h"
 #include "testing/gtest/include/gtest/gtest.h"
 #include "ui/base/l10n/l10n_util.h"
 
 // On Linux this is crashing intermittently http://crbug/84719
 // In some environments this test fails about 1/6 http://crbug/84850
 #if defined(OS_LINUX)
 #define MAYBE_KillExtension DISABLED_KillExtension
 #elif defined(TOUCH_UI)
 #define MAYBE_KillExtension FLAKY_KillExtension
 #else
 #define MAYBE_KillExtension KillExtension
 #endif
 
 namespace {
 
 const FilePath::CharType* kTitle1File = FILE_PATH_LITERAL("title1.html");
 
+class ResourceChangeObserver : public TaskManagerModelObserver {
+ public:
+  ResourceChangeObserver(const TaskManagerModel* model,
+                         int target_resource_count)
+      : model_(model),
+        target_resource_count_(target_resource_count) {
+  }
+
+  virtual void OnModelChanged() {
+    OnResourceChange();
+  }
+
+  virtual void OnItemsChanged(int start, int length) {
+    OnResourceChange();
+  }
+
+  virtual void OnItemsAdded(int start, int length) {
+    OnResourceChange();
+  }
+
+  virtual void OnItemsRemoved(int start, int length) {
+    OnResourceChange();
+  }
+
+ private:
+  void OnResourceChange() {
+    if (model_->ResourceCount() == target_resource_count_)
+      MessageLoopForUI::current()->Quit();
+  }
+
+  const TaskManagerModel* model_;
+  const int target_resource_count_;
+};
+
+// Helper class used to wait for a BackgroundContents to finish loading.
+class BackgroundContentsListener : public NotificationObserver {
+ public:
+  explicit BackgroundContentsListener(Profile* profile) {
+    registrar_.Add(this, chrome::NOTIFICATION_BACKGROUND_CONTENTS_NAVIGATED,
+                   Source<Profile>(profile));
+  }
+  virtual void Observe(int type,
+                       const NotificationSource& source,
+                       const NotificationDetails& details) {
+    // Quit once the BackgroundContents has been loaded.
+    if (type == chrome::NOTIFICATION_BACKGROUND_CONTENTS_NAVIGATED)
+      MessageLoopForUI::current()->Quit();
+  }
+ private:
+  NotificationRegistrar registrar_;
+};
+
 }  // namespace
 
 class TaskManagerBrowserTest : public ExtensionBrowserTest {
  public:
   TaskManagerModel* model() const {
     return TaskManager::GetInstance()->model();
   }
+
+  void WaitForResourceChange(int target_count) {
+    if (model()->ResourceCount() == target_count)
+      return;
+    ResourceChangeObserver observer(model(), target_count);
+    model()->AddObserver(&observer);
+    ui_test_utils::RunMessageLoop();
+    model()->RemoveObserver(&observer);
+  }
+
+  // Wait for any pending BackgroundContents to finish starting up.
+  void WaitForBackgroundContents() {
+    BackgroundContentsListener listener(browser()->profile());
+    ui_test_utils::RunMessageLoop();
+  }
 };
 
 // Regression test for http://crbug.com/13361
 IN_PROC_BROWSER_TEST_F(TaskManagerBrowserTest, ShutdownWhileOpen) {
   browser()->window()->ShowTaskManager();
 }
 
 IN_PROC_BROWSER_TEST_F(TaskManagerBrowserTest, NoticeTabContentsChanges) {
   EXPECT_EQ(0, model()->ResourceCount());
 
   // Show the task manager. This populates the model, and helps with debugging
   // (you see the task manager).
   browser()->window()->ShowTaskManager();
 
   // Browser and the New Tab Page.
-  TaskManagerBrowserTestUtil::WaitForResourceChange(2);
+  WaitForResourceChange(2);
 
   // Open a new tab and make sure we notice that.
   GURL url(ui_test_utils::GetTestUrl(FilePath(FilePath::kCurrentDirectory),
                                      FilePath(kTitle1File)));
   AddTabAtIndex(0, url, PageTransition::TYPED);
-  TaskManagerBrowserTestUtil::WaitForResourceChange(3);
+  WaitForResourceChange(3);
 
   // Check that the third entry is a tab contents resource whose title starts
   // starts with "Tab:".
   ASSERT_TRUE(model()->GetResourceTabContents(2) != NULL);
   string16 prefix = l10n_util::GetStringFUTF16(
       IDS_TASK_MANAGER_TAB_PREFIX, string16());
   ASSERT_TRUE(StartsWith(model()->GetResourceTitle(2), prefix, true));
 
   // Close the tab and verify that we notice.
   TabContents* first_tab = browser()->GetTabContentsAt(0);
   ASSERT_TRUE(first_tab);
   browser()->CloseTabContents(first_tab);
-  TaskManagerBrowserTestUtil::WaitForResourceChange(2);
+  WaitForResourceChange(2);
 }
 
 IN_PROC_BROWSER_TEST_F(TaskManagerBrowserTest, NoticeBGContentsChanges) {
   EXPECT_EQ(0, model()->ResourceCount());
   EXPECT_EQ(0, TaskManager::GetBackgroundPageCount());
 
   // Show the task manager. This populates the model, and helps with debugging
   // (you see the task manager).
   browser()->window()->ShowTaskManager();
 
   // Browser and the New Tab Page.
-  TaskManagerBrowserTestUtil::WaitForResourceChange(2);
+  WaitForResourceChange(2);
 
   // Open a new background contents and make sure we notice that.
   GURL url(ui_test_utils::GetTestUrl(FilePath(FilePath::kCurrentDirectory),
                                      FilePath(kTitle1File)));
 
   BackgroundContentsService* service =
       BackgroundContentsServiceFactory::GetForProfile(browser()->profile());
   string16 application_id(ASCIIToUTF16("test_app_id"));
   service->LoadBackgroundContents(browser()->profile(),
                                   url,
                                   ASCIIToUTF16("background_page"),
                                   application_id);
-  TaskManagerBrowserTestUtil::WaitForResourceChange(3);
+  WaitForResourceChange(3);
   EXPECT_EQ(1, TaskManager::GetBackgroundPageCount());
 
   // Close the background contents and verify that we notice.
   service->ShutdownAssociatedBackgroundContents(application_id);
-  TaskManagerBrowserTestUtil::WaitForResourceChange(2);
+  WaitForResourceChange(2);
   EXPECT_EQ(0, TaskManager::GetBackgroundPageCount());
 }
 
 IN_PROC_BROWSER_TEST_F(TaskManagerBrowserTest, KillBGContents) {
   EXPECT_EQ(0, model()->ResourceCount());
   EXPECT_EQ(0, TaskManager::GetBackgroundPageCount());
 
   // Show the task manager. This populates the model, and helps with debugging
   // (you see the task manager).
   browser()->window()->ShowTaskManager();
 
   // Browser and the New Tab Page.
-  TaskManagerBrowserTestUtil::WaitForResourceChange(2);
+  WaitForResourceChange(2);
 
   // Open a new background contents and make sure we notice that.
   GURL url(ui_test_utils::GetTestUrl(FilePath(FilePath::kCurrentDirectory),
                                      FilePath(kTitle1File)));
 
-  ui_test_utils::WindowedNotificationObserver observer(
-      chrome::NOTIFICATION_BACKGROUND_CONTENTS_NAVIGATED,
-      Source<Profile>(browser()->profile()));
-
   BackgroundContentsService* service =
       BackgroundContentsServiceFactory::GetForProfile(browser()->profile());
   string16 application_id(ASCIIToUTF16("test_app_id"));
   service->LoadBackgroundContents(browser()->profile(),
                                   url,
                                   ASCIIToUTF16("background_page"),
                                   application_id);
-
   // Wait for the background contents process to finish loading.
-  observer.Wait();
-
+  WaitForBackgroundContents();
   EXPECT_EQ(3, model()->ResourceCount());
   EXPECT_EQ(1, TaskManager::GetBackgroundPageCount());
 
   // Kill the background contents process and verify that it disappears from the
   // model.
   bool found = false;
   for (int i = 0; i < model()->ResourceCount(); ++i) {
     if (model()->IsBackgroundResource(i)) {
       TaskManager::GetInstance()->KillProcess(i);
       found = true;
       break;
     }
   }
   ASSERT_TRUE(found);
-  TaskManagerBrowserTestUtil::WaitForResourceChange(2);
+  WaitForResourceChange(2);
   EXPECT_EQ(0, TaskManager::GetBackgroundPageCount());
 }
 
 IN_PROC_BROWSER_TEST_F(TaskManagerBrowserTest, NoticeExtensionChanges) {
   EXPECT_EQ(0, model()->ResourceCount());
   EXPECT_EQ(0, TaskManager::GetBackgroundPageCount());
 
   // Show the task manager. This populates the model, and helps with debugging
   // (you see the task manager).
   browser()->window()->ShowTaskManager();
 
   // Browser and the New Tab Page.
-  TaskManagerBrowserTestUtil::WaitForResourceChange(2);
+  WaitForResourceChange(2);
 
   // Loading an extension with a background page should result in a new
   // resource being created for it.
   ASSERT_TRUE(LoadExtension(
       test_data_dir_.AppendASCII("common").AppendASCII("background_page")));
-  TaskManagerBrowserTestUtil::WaitForResourceChange(3);
+  WaitForResourceChange(3);
   EXPECT_EQ(1, TaskManager::GetBackgroundPageCount());
 
   // Unload extension to avoid crash on Windows (see http://crbug.com/31663).
   UnloadExtension(last_loaded_extension_id_);
-  TaskManagerBrowserTestUtil::WaitForResourceChange(2);
+  WaitForResourceChange(2);
   EXPECT_EQ(0, TaskManager::GetBackgroundPageCount());
 }
 
 IN_PROC_BROWSER_TEST_F(TaskManagerBrowserTest, NoticeExtensionTabs) {
   // Show the task manager. This populates the model, and helps with debugging
   // (you see the task manager).
   browser()->window()->ShowTaskManager();
 
   ASSERT_TRUE(LoadExtension(
       test_data_dir_.AppendASCII("good").AppendASCII("Extensions")
                     .AppendASCII("behllobkkfkfnphdnhnkndlbkcpglgmj")
                     .AppendASCII("1.0.0.0")));
 
   // Browser, Extension background page, and the New Tab Page.
-  TaskManagerBrowserTestUtil::WaitForResourceChange(3);
+  WaitForResourceChange(3);
 
   // Open a new tab to an extension URL and make sure we notice that.
   GURL url("chrome-extension://behllobkkfkfnphdnhnkndlbkcpglgmj/page.html");
   AddTabAtIndex(0, url, PageTransition::TYPED);
-  TaskManagerBrowserTestUtil::WaitForResourceChange(4);
+  WaitForResourceChange(4);
 
   // Check that the third entry (background) is an extension resource whose
   // title starts with "Extension:".
   ASSERT_EQ(TaskManager::Resource::EXTENSION, model()->GetResourceType(2));
   ASSERT_TRUE(model()->GetResourceTabContents(2) == NULL);
   ASSERT_TRUE(model()->GetResourceExtension(2) != NULL);
   string16 prefix = l10n_util::GetStringFUTF16(
       IDS_TASK_MANAGER_EXTENSION_PREFIX, string16());
   ASSERT_TRUE(StartsWith(model()->GetResourceTitle(2), prefix, true));
 
   // Check that the fourth entry (page.html) is of type extension and has both
   // a tab contents and an extension. The title should start with "Extension:".
   ASSERT_EQ(TaskManager::Resource::EXTENSION, model()->GetResourceType(3));
   ASSERT_TRUE(model()->GetResourceTabContents(3) != NULL);
   ASSERT_TRUE(model()->GetResourceExtension(3) != NULL);
   ASSERT_TRUE(StartsWith(model()->GetResourceTitle(3), prefix, true));
 
   // Unload extension to avoid crash on Windows.
   UnloadExtension(last_loaded_extension_id_);
-  TaskManagerBrowserTestUtil::WaitForResourceChange(2);
+  WaitForResourceChange(2);
 }
 
 IN_PROC_BROWSER_TEST_F(TaskManagerBrowserTest, NoticeAppTabs) {
   // Show the task manager. This populates the model, and helps with debugging
   // (you see the task manager).
   browser()->window()->ShowTaskManager();
 
   ASSERT_TRUE(LoadExtension(
       test_data_dir_.AppendASCII("packaged_app")));
   ExtensionService* service = browser()->profile()->GetExtensionService();
   const Extension* extension =
       service->GetExtensionById(last_loaded_extension_id_, false);
 
   // Browser and the New Tab Page.
-  TaskManagerBrowserTestUtil::WaitForResourceChange(2);
+  WaitForResourceChange(2);
 
   // Open a new tab to the app's launch URL and make sure we notice that.
   GURL url(extension->GetResourceURL("main.html"));
   AddTabAtIndex(0, url, PageTransition::TYPED);
-  TaskManagerBrowserTestUtil::WaitForResourceChange(3);
+  WaitForResourceChange(3);
 
   // Check that the third entry (main.html) is of type extension and has both
   // a tab contents and an extension. The title should start with "App:".
   ASSERT_EQ(TaskManager::Resource::EXTENSION, model()->GetResourceType(2));
   ASSERT_TRUE(model()->GetResourceTabContents(2) != NULL);
   ASSERT_TRUE(model()->GetResourceExtension(2) == extension);
   string16 prefix = l10n_util::GetStringFUTF16(
       IDS_TASK_MANAGER_APP_PREFIX, string16());
   ASSERT_TRUE(StartsWith(model()->GetResourceTitle(2), prefix, true));
 
   // Unload extension to avoid crash on Windows.
   UnloadExtension(last_loaded_extension_id_);
-  TaskManagerBrowserTestUtil::WaitForResourceChange(2);
+  WaitForResourceChange(2);
 }
 
 IN_PROC_BROWSER_TEST_F(TaskManagerBrowserTest, NoticeHostedAppTabs) {
   // Show the task manager. This populates the model, and helps with debugging
   // (you see the task manager).
   browser()->window()->ShowTaskManager();
 
   // Browser and the New Tab Page.
-  TaskManagerBrowserTestUtil::WaitForResourceChange(2);
+  WaitForResourceChange(2);
 
   // The app under test acts on URLs whose host is "localhost",
   // so the URLs we navigate to must have host "localhost".
   host_resolver()->AddRule("*", "127.0.0.1");
   ASSERT_TRUE(test_server()->Start());
   GURL::Replacements replace_host;
   std::string host_str("localhost");  // must stay in scope with replace_host
   replace_host.SetHostStr(host_str);
   GURL base_url = test_server()->GetURL(
       "files/extensions/api_test/app_process/");
@@ skipping 34 matching lines @@
   EXPECT_EQ(0, TaskManager::GetBackgroundPageCount());
   // Show the task manager. This populates the model, and helps with debugging
   // (you see the task manager).
   browser()->window()->ShowTaskManager();
 
   ASSERT_TRUE(LoadExtension(
       test_data_dir_.AppendASCII("common").AppendASCII("background_page")));
 
   // Wait until we see the loaded extension in the task manager (the three
   // resources are: the browser process, New Tab Page, and the extension).
-  TaskManagerBrowserTestUtil::WaitForResourceChange(3);
+  WaitForResourceChange(3);
   EXPECT_EQ(1, TaskManager::GetBackgroundPageCount());
 
   EXPECT_TRUE(model()->GetResourceExtension(0) == NULL);
   EXPECT_TRUE(model()->GetResourceExtension(1) == NULL);
   ASSERT_TRUE(model()->GetResourceExtension(2) != NULL);
 
   // Kill the extension process and make sure we notice it.
   TaskManager::GetInstance()->KillProcess(2);
-  TaskManagerBrowserTestUtil::WaitForResourceChange(2);
+  WaitForResourceChange(2);
   EXPECT_EQ(0, TaskManager::GetBackgroundPageCount());
 }
 
 // Disabled, http://crbug.com/66957.
 IN_PROC_BROWSER_TEST_F(TaskManagerBrowserTest,
                        DISABLED_KillExtensionAndReload) {
   // Show the task manager. This populates the model, and helps with debugging
   // (you see the task manager).
   browser()->window()->ShowTaskManager();
 
   ASSERT_TRUE(LoadExtension(
       test_data_dir_.AppendASCII("common").AppendASCII("background_page")));
 
   // Wait until we see the loaded extension in the task manager (the three
   // resources are: the browser process, New Tab Page, and the extension).
-  TaskManagerBrowserTestUtil::WaitForResourceChange(3);
+  WaitForResourceChange(3);
 
   EXPECT_TRUE(model()->GetResourceExtension(0) == NULL);
   EXPECT_TRUE(model()->GetResourceExtension(1) == NULL);
   ASSERT_TRUE(model()->GetResourceExtension(2) != NULL);
 
   // Kill the extension process and make sure we notice it.
   TaskManager::GetInstance()->KillProcess(2);
-  TaskManagerBrowserTestUtil::WaitForResourceChange(2);
+  WaitForResourceChange(2);
 
   // Reload the extension using the "crashed extension" infobar while the task
   // manager is still visible. Make sure we don't crash and the extension
   // gets reloaded and noticed in the task manager.
   TabContentsWrapper* current_tab = browser()->GetSelectedTabContentsWrapper();
   ASSERT_EQ(1U, current_tab->infobar_count());
   ConfirmInfoBarDelegate* delegate =
       current_tab->GetInfoBarDelegateAt(0)->AsConfirmInfoBarDelegate();
   ASSERT_TRUE(delegate);
   delegate->Accept();
-  TaskManagerBrowserTestUtil::WaitForResourceChange(3);
+  WaitForResourceChange(3);
 }
 
 // Regression test for http://crbug.com/18693.
 //
 // This test is crashy. See http://crbug.com/42315.
 IN_PROC_BROWSER_TEST_F(TaskManagerBrowserTest, DISABLED_ReloadExtension) {
   // Show the task manager. This populates the model, and helps with debugging
   // (you see the task manager).
   browser()->window()->ShowTaskManager();
 
   LOG(INFO) << "loading extension";
   ASSERT_TRUE(LoadExtension(
       test_data_dir_.AppendASCII("common").AppendASCII("background_page")));
 
   // Wait until we see the loaded extension in the task manager (the three
   // resources are: the browser process, New Tab Page, and the extension).
   LOG(INFO) << "waiting for resource change";
-  TaskManagerBrowserTestUtil::WaitForResourceChange(3);
+  WaitForResourceChange(3);
 
   EXPECT_TRUE(model()->GetResourceExtension(0) == NULL);
   EXPECT_TRUE(model()->GetResourceExtension(1) == NULL);
   ASSERT_TRUE(model()->GetResourceExtension(2) != NULL);
 
   const Extension* extension = model()->GetResourceExtension(2);
   ASSERT_TRUE(extension != NULL);
 
   // Reload the extension a few times and make sure our resource count
   // doesn't increase.
   LOG(INFO) << "First extension reload";
   ReloadExtension(extension->id());
-  TaskManagerBrowserTestUtil::WaitForResourceChange(3);
+  WaitForResourceChange(3);
   extension = model()->GetResourceExtension(2);
   ASSERT_TRUE(extension != NULL);
 
   LOG(INFO) << "Second extension reload";
   ReloadExtension(extension->id());
-  TaskManagerBrowserTestUtil::WaitForResourceChange(3);
+  WaitForResourceChange(3);
   extension = model()->GetResourceExtension(2);
   ASSERT_TRUE(extension != NULL);
 
   LOG(INFO) << "Third extension reload";
   ReloadExtension(extension->id());
-  TaskManagerBrowserTestUtil::WaitForResourceChange(3);
+  WaitForResourceChange(3);
 }
 
 // Crashy, http://crbug.com/42301.
 IN_PROC_BROWSER_TEST_F(TaskManagerBrowserTest,
                        DISABLED_PopulateWebCacheFields) {
   EXPECT_EQ(0, model()->ResourceCount());
 
   // Show the task manager. This populates the model, and helps with debugging
   // (you see the task manager).
   browser()->window()->ShowTaskManager();
 
   // Browser and the New Tab Page.
-  TaskManagerBrowserTestUtil::WaitForResourceChange(2);
+  WaitForResourceChange(2);
 
   // Open a new tab and make sure we notice that.
   GURL url(ui_test_utils::GetTestUrl(FilePath(FilePath::kCurrentDirectory),
                                      FilePath(kTitle1File)));
   AddTabAtIndex(0, url, PageTransition::TYPED);
-  TaskManagerBrowserTestUtil::WaitForResourceChange(3);
+  WaitForResourceChange(3);
 
   // Check that we get some value for the cache columns.
   DCHECK_NE(model()->GetResourceWebCoreImageCacheSize(2),
             l10n_util::GetStringUTF16(IDS_TASK_MANAGER_NA_CELL_TEXT));
   DCHECK_NE(model()->GetResourceWebCoreScriptsCacheSize(2),
             l10n_util::GetStringUTF16(IDS_TASK_MANAGER_NA_CELL_TEXT));
   DCHECK_NE(model()->GetResourceWebCoreCSSCacheSize(2),
             l10n_util::GetStringUTF16(IDS_TASK_MANAGER_NA_CELL_TEXT));
 }