Add a test for checking that refreshing a page does load the same WebUI page.

chrome/browser/ui/webui/settings_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/ui/webui/options/core_options_handler.h"
 #include "chrome/common/url_constants.h"
 #include "chrome/test/ui_test_utils.h"
 #include "content/browser/webui/web_ui_browsertest.h"
 #include "googleurl/src/gurl.h"
 #include "testing/gmock/include/gmock/gmock.h"
@@ skipping 50 matching lines @@
         NewCallback(this, &MockCoreOptionsHandler ::HandleClearPref));
     web_ui_->RegisterMessageCallback("coreOptionsUserMetricsAction",
         NewCallback(this, &MockCoreOptionsHandler ::HandleUserMetricsAction));
   }
 };
 
 class SettingsWebUITest : public WebUIBrowserTest {
  protected:
   virtual void SetUpInProcessBrowserTestFixture() {
     WebUIBrowserTest::SetUpInProcessBrowserTestFixture();
+    AddLibrary(FILE_PATH_LITERAL("settings_util.js"));
     AddLibrary(FILE_PATH_LITERAL("settings.js"));
   }
 
   virtual WebUIMessageHandler* GetMockMessageHandler() {
     return &mock_core_options_handler_;
   }
 
   StrictMock<MockCoreOptionsHandler> mock_core_options_handler_;
 };
 
 // Test the end to end js to WebUI handler code path for
 // the message setBooleanPref.
 // TODO(dtseng): add more EXPECT_CALL's when updating js test.
 
 // Crashes on Mac only. See http://crbug.com/79181
 #if defined(OS_MACOSX)
 #define MAYBE_TestSetBooleanPrefTriggers DISABLED_TestSetBooleanPrefTriggers
 #else
 #define MAYBE_TestSetBooleanPrefTriggers TestSetBooleanPrefTriggers
 #endif
 IN_PROC_BROWSER_TEST_F(SettingsWebUITest, MAYBE_TestSetBooleanPrefTriggers) {
+  ui_test_utils::NavigateToURL(browser(), GURL(chrome::kChromeUISettingsURL));
   // This serves as an example of a very constrained test.
   ListValue true_list_value;
   true_list_value.Append(Value::CreateStringValue("browser.show_home_button"));
   true_list_value.Append(Value::CreateBooleanValue(true));
   true_list_value.Append(
       Value::CreateStringValue("Options_Homepage_HomeButton"));
-  ui_test_utils::NavigateToURL(browser(), GURL(chrome::kChromeUISettingsURL));
+
   EXPECT_CALL(mock_core_options_handler_,
       HandleSetBooleanPref(Eq_ListValue(&true_list_value)));
   ASSERT_TRUE(RunJavascriptTest("testSetBooleanPrefTriggers"));
 }
+
+IN_PROC_BROWSER_TEST_F(SettingsWebUITest, testRefreshStaysOnCurrentPage) {
+  ui_test_utils::NavigateToURL(browser(), GURL(chrome::kChromeUISettingsURL));
+  ASSERT_TRUE(RunJavascriptFunction("openUnderTheHood"));
+  ASSERT_TRUE(RunJavascriptFunction("refreshPage"));
+  ASSERT_TRUE(RunJavascriptTest("testPageIsUnderTheHood"));
+}