Add test for ChromeVox sticky mode.

chrome/browser/chromeos/accessibility/spoken_feedback_browsertest.cc

 // Copyright 2014 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 <queue>
 
 #include "ash/shell.h"
 #include "ash/system/tray/system_tray.h"
 #include "base/command_line.h"
 #include "base/strings/string_util.h"
@@ skipping 117 matching lines @@
         true, ash::A11Y_NOTIFICATION_NONE);
 
     // Block until we get "ready".
     while (speech_monitor_.GetNextUtterance() != "ready") {
     }
 
     // Now load the requested url.
     ui_test_utils::NavigateToURL(browser(), url);
   }
 
+  void PressRepeatedlyUntilUtterance(ui::KeyboardCode key,
+                                     const std::string& expected_utterance) {
+    // This helper function is needed when you want to poll for something
+    // that happens asynchronously. Keep pressing |key|, until
+    // the speech feedback that follows is |expected_utterance|.
+    // Note that this doesn't work if pressing that key doesn't speak anything
+    // at all before the asynchronous event occurred.
+    while (true) {
+      SendKeyPress(key);
+      const std::string& utterance = speech_monitor_.GetNextUtterance();
+      if (utterance == expected_utterance)
+        break;
+    }
+  }
+
   SpeechMonitor speech_monitor_;
 
  private:
   StubBrailleController braille_controller_;
   DISALLOW_COPY_AND_ASSIGN(LoggedInSpokenFeedbackTest);
 };
 
 IN_PROC_BROWSER_TEST_F(LoggedInSpokenFeedbackTest, AddBookmark) {
-  EXPECT_FALSE(AccessibilityManager::Get()->IsSpokenFeedbackEnabled());
+  ASSERT_FALSE(AccessibilityManager::Get()->IsSpokenFeedbackEnabled());
 
   AccessibilityManager::Get()->EnableSpokenFeedback(
       true, ash::A11Y_NOTIFICATION_NONE);
   EXPECT_TRUE(speech_monitor_.SkipChromeVoxEnabledMessage());
   DisableEarcons();
 
   chrome::ExecuteCommand(browser(), IDC_SHOW_BOOKMARK_BAR);
 
   // Create a bookmark with title "foo".
   chrome::ExecuteCommand(browser(), IDC_BOOKMARK_PAGE);
@@ skipping 63 matching lines @@
   }
 };
 
 INSTANTIATE_TEST_CASE_P(
     TestAsNormalAndGuestUser,
     SpokenFeedbackTest,
     ::testing::Values(kTestAsNormalUser,
                       kTestAsGuestUser));
 
 IN_PROC_BROWSER_TEST_P(SpokenFeedbackTest, EnableSpokenFeedback) {
-  EXPECT_FALSE(AccessibilityManager::Get()->IsSpokenFeedbackEnabled());
+  ASSERT_FALSE(AccessibilityManager::Get()->IsSpokenFeedbackEnabled());
 
   AccessibilityManager::Get()->EnableSpokenFeedback(
       true, ash::A11Y_NOTIFICATION_NONE);
   EXPECT_TRUE(speech_monitor_.SkipChromeVoxEnabledMessage());
 }
 
 IN_PROC_BROWSER_TEST_P(SpokenFeedbackTest, FocusToolbar) {
-  EXPECT_FALSE(AccessibilityManager::Get()->IsSpokenFeedbackEnabled());
+  ASSERT_FALSE(AccessibilityManager::Get()->IsSpokenFeedbackEnabled());
 
   AccessibilityManager::Get()->EnableSpokenFeedback(
       true, ash::A11Y_NOTIFICATION_NONE);
   EXPECT_TRUE(speech_monitor_.SkipChromeVoxEnabledMessage());
   DisableEarcons();
 
   chrome::ExecuteCommand(browser(), IDC_FOCUS_TOOLBAR);
   // Might be "Google Chrome Toolbar" or "Chromium Toolbar".
   EXPECT_TRUE(MatchPattern(speech_monitor_.GetNextUtterance(), "*oolbar*"));
   EXPECT_EQ("Reload,", speech_monitor_.GetNextUtterance());
   EXPECT_EQ("button", speech_monitor_.GetNextUtterance());
 }
 
 IN_PROC_BROWSER_TEST_P(SpokenFeedbackTest, TypeInOmnibox) {
-  EXPECT_FALSE(AccessibilityManager::Get()->IsSpokenFeedbackEnabled());
+  ASSERT_FALSE(AccessibilityManager::Get()->IsSpokenFeedbackEnabled());
 
   AccessibilityManager::Get()->EnableSpokenFeedback(
       true, ash::A11Y_NOTIFICATION_NONE);
   EXPECT_TRUE(speech_monitor_.SkipChromeVoxEnabledMessage());
   DisableEarcons();
 
   // Wait for ChromeVox to finish speaking.
   chrome::ExecuteCommand(browser(), IDC_FOCUS_LOCATION);
   while (true) {
     std::string utterance = speech_monitor_.GetNextUtterance();
@@ skipping 71 matching lines @@
   EXPECT_EQ("Start selection", speech_monitor_.GetNextUtterance());
   EXPECT_EQ("Title", speech_monitor_.GetNextUtterance());
   EXPECT_EQ(", selected", speech_monitor_.GetNextUtterance());
 
   // Press again to end the selection.
   SendKeyPressWithSearchAndShift(ui::VKEY_S);
   EXPECT_EQ("End selection", speech_monitor_.GetNextUtterance());
   EXPECT_EQ("Title", speech_monitor_.GetNextUtterance());
 }
 
+IN_PROC_BROWSER_TEST_P(SpokenFeedbackTest, ChromeVoxStickyMode) {
+  LoadChromeVoxAndThenNavigateToURL(
+      GURL("data:text/html;charset=utf-8,"
+           "<label>Enter your name <input autofocus></label>"
+           "<p>One</p>"
+           "<h2>Two</h2>"));
+  while (speech_monitor_.GetNextUtterance() != "Enter your name") {
+  }
+  EXPECT_EQ("Edit text", speech_monitor_.GetNextUtterance());
+
+  // Press the sticky-key sequence: Search Search.
+  SendKeyPress(ui::VKEY_LWIN);
+  SendKeyPress(ui::VKEY_LWIN);
+  EXPECT_EQ("Sticky mode enabled", speech_monitor_.GetNextUtterance());
+
+  // Even once we hear "sticky mode enabled" from the ChromeVox background
+  // page, there's a short window of time when the content script still
+  // hasn't switched to sticky mode. That's why we're focused on a text box.
+  // Keep pressing the '/' key. If sticky mode is off, it will echo the word
+  // "slash". If sticky mode is on, it will open "Find in page". Keep pressing
+  // '/' until we get "Find in page.".
+  PressRepeatedlyUntilUtterance(ui::VKEY_OEM_2, "Find in page.");
+  EXPECT_EQ("Enter a search query.", speech_monitor_.GetNextUtterance());
+
+  // Press Esc to exit Find in Page mode.
+  SendKeyPress(ui::VKEY_ESCAPE);
+  EXPECT_EQ("Exited", speech_monitor_.GetNextUtterance());
+  EXPECT_EQ("Find in page.", speech_monitor_.GetNextUtterance());
+
+  // Press N H to jump to the next heading. Skip over speech in-between
+  // but make sure we end up at the heading.
+  SendKeyPress(ui::VKEY_N);
+  SendKeyPress(ui::VKEY_H);
+  while (speech_monitor_.GetNextUtterance() != "Two") {
+  }
+  EXPECT_EQ("Heading 2", speech_monitor_.GetNextUtterance());
+
+  // Press the up arrow to go to the previous element.
+  SendKeyPress(ui::VKEY_UP);
+  EXPECT_EQ("One", speech_monitor_.GetNextUtterance());
+}
+
 IN_PROC_BROWSER_TEST_P(SpokenFeedbackTest, TouchExploreStatusTray) {
-  EXPECT_FALSE(AccessibilityManager::Get()->IsSpokenFeedbackEnabled());
+  ASSERT_FALSE(AccessibilityManager::Get()->IsSpokenFeedbackEnabled());
 
   AccessibilityManager::Get()->EnableSpokenFeedback(
       true, ash::A11Y_NOTIFICATION_NONE);
   EXPECT_TRUE(speech_monitor_.SkipChromeVoxEnabledMessage());
   DisableEarcons();
 
   SimulateTouchScreenInChromeVox();
 
   // Send an accessibility hover event on the system tray, which is
   // what we get when you tap it on a touch screen when ChromeVox is on.
@@ skipping 21 matching lines @@
     command_line->AppendSwitchASCII(chromeos::switches::kLoginProfile, "user");
     command_line->AppendSwitchASCII(chromeos::switches::kLoginUser,
                                     chromeos::login::kGuestUserName);
   }
 
  private:
   DISALLOW_COPY_AND_ASSIGN(GuestSpokenFeedbackTest);
 };
 
 IN_PROC_BROWSER_TEST_F(GuestSpokenFeedbackTest, FocusToolbar) {
-  EXPECT_FALSE(AccessibilityManager::Get()->IsSpokenFeedbackEnabled());
+  ASSERT_FALSE(AccessibilityManager::Get()->IsSpokenFeedbackEnabled());
 
   AccessibilityManager::Get()->EnableSpokenFeedback(
       true, ash::A11Y_NOTIFICATION_NONE);
   EXPECT_TRUE(speech_monitor_.SkipChromeVoxEnabledMessage());
   DisableEarcons();
 
   chrome::ExecuteCommand(browser(), IDC_FOCUS_TOOLBAR);
   // Might be "Google Chrome Toolbar" or "Chromium Toolbar".
   EXPECT_TRUE(MatchPattern(speech_monitor_.GetNextUtterance(), "*oolbar*"));
   EXPECT_EQ("Reload,", speech_monitor_.GetNextUtterance());
@@ skipping 22 matching lines @@
 
   SpeechMonitor speech_monitor_;
 
  private:
   DISALLOW_COPY_AND_ASSIGN(OobeSpokenFeedbackTest);
 };
 
 // Test is flaky: http://crbug.com/346797
 IN_PROC_BROWSER_TEST_F(OobeSpokenFeedbackTest, DISABLED_SpokenFeedbackInOobe) {
   ui_controls::EnableUIControls();
-  EXPECT_FALSE(AccessibilityManager::Get()->IsSpokenFeedbackEnabled());
+  ASSERT_FALSE(AccessibilityManager::Get()->IsSpokenFeedbackEnabled());
 
   LoginDisplayHost* login_display_host = LoginDisplayHostImpl::default_host();
   WebUILoginView* web_ui_login_view = login_display_host->GetWebUILoginView();
   views::Widget* widget = web_ui_login_view->GetWidget();
   gfx::NativeWindow window = widget->GetNativeWindow();
 
   AccessibilityManager::Get()->EnableSpokenFeedback(
       true, ash::A11Y_NOTIFICATION_NONE);
   EXPECT_TRUE(speech_monitor_.SkipChromeVoxEnabledMessage());
 
   EXPECT_EQ("Select your language:", speech_monitor_.GetNextUtterance());
   EXPECT_EQ("English ( United States)", speech_monitor_.GetNextUtterance());
   EXPECT_TRUE(MatchPattern(speech_monitor_.GetNextUtterance(),
                            "Combo box * of *"));
   ASSERT_TRUE(
       ui_test_utils::SendKeyPressToWindowSync(
           window, ui::VKEY_TAB, false, false, false, false));
   EXPECT_EQ("Select your keyboard:", speech_monitor_.GetNextUtterance());
 }
 
 }  // namespace chromeos