content/browser/session_history_browsertest.cc - chromium/src - Git at Google

 // Copyright (c) 2012 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 "base/strings/string_util.h"
 #include "base/strings/stringprintf.h"
 #include "base/strings/utf_string_conversions.h"
 #include "content/public/browser/navigation_controller.h"
 #include "content/public/browser/notification_service.h"
 #include "content/public/browser/notification_types.h"
 #include "content/public/browser/web_contents.h"
 #include "content/public/common/url_constants.h"
 #include "content/public/test/browser_test_utils.h"
 #include "content/public/test/content_browser_test.h"
 #include "content/public/test/content_browser_test_utils.h"
 #include "content/public/test/test_utils.h"
 #include "content/shell/browser/shell.h"
 #include "net/test/embedded_test_server/embedded_test_server.h"
 #include "net/test/embedded_test_server/http_request.h"
 #include "net/test/embedded_test_server/http_response.h"
 #include "testing/gtest/include/gtest/gtest.h"

 namespace content {

 namespace {

 // Handles |request| by serving a response with title set to request contents.
 scoped_ptr<net::test_server::HttpResponse> HandleEchoTitleRequest(
     const std::string& echotitle_path,
     const net::test_server::HttpRequest& request) {
   if (!base::StartsWith(request.relative_url, echotitle_path,
                         base::CompareCase::SENSITIVE))
     return scoped_ptr<net::test_server::HttpResponse>();

   scoped_ptr<net::test_server::BasicHttpResponse> http_response(
       new net::test_server::BasicHttpResponse);
   http_response->set_code(net::HTTP_OK);
   http_response->set_content(
       base::StringPrintf(
           "<html><head><title>%s</title></head></html>",
           request.content.c_str()));
   return http_response.Pass();
 }

 }  // namespace

 class SessionHistoryTest : public ContentBrowserTest {
  protected:
   SessionHistoryTest() {}

   void SetUpOnMainThread() override {
     ASSERT_TRUE(embedded_test_server()->InitializeAndWaitUntilReady());
     embedded_test_server()->RegisterRequestHandler(
         base::Bind(&HandleEchoTitleRequest, "/echotitle"));

     NavigateToURL(shell(), GURL(url::kAboutBlankURL));
   }

   // Simulate clicking a link.  Only works on the frames.html testserver page.
   void ClickLink(std::string node_id) {
     GURL url("javascript:clickLink('" + node_id + "')");
     NavigateToURL(shell(), url);
   }

   // Simulate filling in form data.  Only works on the frames.html page with
   // subframe = form.html, and on form.html itself.
   void FillForm(std::string node_id, std::string value) {
     GURL url("javascript:fillForm('" + node_id + "', '" + value + "')");
     // This will return immediately, but since the JS executes synchronously
     // on the renderer, it will complete before the next navigate message is
     // processed.
     NavigateToURL(shell(), url);
   }

   // Simulate submitting a form.  Only works on the frames.html page with
   // subframe = form.html, and on form.html itself.
   void SubmitForm(std::string node_id) {
     GURL url("javascript:submitForm('" + node_id + "')");
     NavigateToURL(shell(), url);
   }

   // Navigate session history using history.go(distance).
   void JavascriptGo(std::string distance) {
     GURL url("javascript:history.go('" + distance + "')");
     NavigateToURL(shell(), url);
   }

   std::string GetTabTitle() {
     return base::UTF16ToASCII(shell()->web_contents()->GetTitle());
   }

   GURL GetTabURL() {
     return shell()->web_contents()->GetLastCommittedURL();
   }

   GURL GetURL(const std::string file) {
     return embedded_test_server()->GetURL(
         std::string("/session_history/") + file);
   }

   void NavigateAndCheckTitle(const char* filename,
                              const std::string& expected_title) {
     base::string16 expected_title16(base::ASCIIToUTF16(expected_title));
     TitleWatcher title_watcher(shell()->web_contents(), expected_title16);
     NavigateToURL(shell(), GetURL(filename));
     ASSERT_EQ(expected_title16, title_watcher.WaitAndGetTitle());
   }

   bool CanGoBack() {
     return shell()->web_contents()->GetController().CanGoBack();
   }

   bool CanGoForward() {
     return shell()->web_contents()->GetController().CanGoForward();
   }

   void GoBack() {
     WindowedNotificationObserver load_stop_observer(
         NOTIFICATION_LOAD_STOP,
         NotificationService::AllSources());
     shell()->web_contents()->GetController().GoBack();
     load_stop_observer.Wait();
   }

   void GoForward() {
     WindowedNotificationObserver load_stop_observer(
         NOTIFICATION_LOAD_STOP,
         NotificationService::AllSources());
     shell()->web_contents()->GetController().GoForward();
     load_stop_observer.Wait();
   }
 };

 // If this flakes, use http://crbug.com/61619 on windows and
 // http://crbug.com/102094 on mac.
 IN_PROC_BROWSER_TEST_F(SessionHistoryTest, BasicBackForward) {
   ASSERT_FALSE(CanGoBack());

   ASSERT_NO_FATAL_FAILURE(NavigateAndCheckTitle("bot1.html", "bot1"));
   ASSERT_NO_FATAL_FAILURE(NavigateAndCheckTitle("bot2.html", "bot2"));
   ASSERT_NO_FATAL_FAILURE(NavigateAndCheckTitle("bot3.html", "bot3"));

   // history is [blank, bot1, bot2, *bot3]

   GoBack();
   EXPECT_EQ("bot2", GetTabTitle());

   GoBack();
   EXPECT_EQ("bot1", GetTabTitle());

   GoForward();
   EXPECT_EQ("bot2", GetTabTitle());

   GoBack();
   EXPECT_EQ("bot1", GetTabTitle());

   ASSERT_NO_FATAL_FAILURE(NavigateAndCheckTitle("bot3.html", "bot3"));

   // history is [blank, bot1, *bot3]

   ASSERT_FALSE(CanGoForward());
   EXPECT_EQ("bot3", GetTabTitle());

   GoBack();
   EXPECT_EQ("bot1", GetTabTitle());

   GoBack();
   EXPECT_EQ(std::string(url::kAboutBlankURL), GetTabTitle());

   ASSERT_FALSE(CanGoBack());
   EXPECT_EQ(std::string(url::kAboutBlankURL), GetTabTitle());

   GoForward();
   EXPECT_EQ("bot1", GetTabTitle());

   GoForward();
   EXPECT_EQ("bot3", GetTabTitle());
 }

 // Test that back/forward works when navigating in subframes.
 // If this flakes, use http://crbug.com/48833
 IN_PROC_BROWSER_TEST_F(SessionHistoryTest, FrameBackForward) {
   ASSERT_FALSE(CanGoBack());

   ASSERT_NO_FATAL_FAILURE(NavigateAndCheckTitle("frames.html", "bot1"));

   ClickLink("abot2");
   EXPECT_EQ("bot2", GetTabTitle());
   GURL frames(GetURL("frames.html"));
   EXPECT_EQ(frames, GetTabURL());

   ClickLink("abot3");
   EXPECT_EQ("bot3", GetTabTitle());
   EXPECT_EQ(frames, GetTabURL());

   // history is [blank, bot1, bot2, *bot3]

   GoBack();
   EXPECT_EQ("bot2", GetTabTitle());
   EXPECT_EQ(frames, GetTabURL());

   GoBack();
   EXPECT_EQ("bot1", GetTabTitle());
   EXPECT_EQ(frames, GetTabURL());

   GoBack();
   EXPECT_EQ(std::string(url::kAboutBlankURL), GetTabTitle());
   EXPECT_EQ(GURL(url::kAboutBlankURL), GetTabURL());

   GoForward();
   EXPECT_EQ("bot1", GetTabTitle());
   EXPECT_EQ(frames, GetTabURL());

   GoForward();
   EXPECT_EQ("bot2", GetTabTitle());
   EXPECT_EQ(frames, GetTabURL());

   ClickLink("abot1");
   EXPECT_EQ("bot1", GetTabTitle());
   EXPECT_EQ(frames, GetTabURL());

   // history is [blank, bot1, bot2, *bot1]

   ASSERT_FALSE(CanGoForward());
   EXPECT_EQ("bot1", GetTabTitle());
   EXPECT_EQ(frames, GetTabURL());

   GoBack();
   EXPECT_EQ("bot2", GetTabTitle());
   EXPECT_EQ(frames, GetTabURL());

   GoBack();
   EXPECT_EQ("bot1", GetTabTitle());
   EXPECT_EQ(frames, GetTabURL());
 }

 // Test that back/forward preserves POST data and document state in subframes.
 // If this flakes use http://crbug.com/61619
 IN_PROC_BROWSER_TEST_F(SessionHistoryTest, FrameFormBackForward) {
   ASSERT_FALSE(CanGoBack());

   ASSERT_NO_FATAL_FAILURE(NavigateAndCheckTitle("frames.html", "bot1"));

   ClickLink("aform");
   EXPECT_EQ("form", GetTabTitle());
   GURL frames(GetURL("frames.html"));
   EXPECT_EQ(frames, GetTabURL());

   SubmitForm("isubmit");
   EXPECT_EQ("text=&select=a", GetTabTitle());
   EXPECT_EQ(frames, GetTabURL());

   GoBack();
   EXPECT_EQ("form", GetTabTitle());
   EXPECT_EQ(frames, GetTabURL());

   // history is [blank, bot1, *form, post]

   ClickLink("abot2");
   EXPECT_EQ("bot2", GetTabTitle());
   EXPECT_EQ(frames, GetTabURL());

   // history is [blank, bot1, form, *bot2]

   GoBack();
   EXPECT_EQ("form", GetTabTitle());
   EXPECT_EQ(frames, GetTabURL());

   SubmitForm("isubmit");
   EXPECT_EQ("text=&select=a", GetTabTitle());
   EXPECT_EQ(frames, GetTabURL());

   // history is [blank, bot1, form, *post]

   // TODO(mpcomplete): reenable this when WebKit bug 10199 is fixed:
   // "returning to a POST result within a frame does a GET instead of a POST"
   ClickLink("abot2");
   EXPECT_EQ("bot2", GetTabTitle());
   EXPECT_EQ(frames, GetTabURL());

   GoBack();
   EXPECT_EQ("text=&select=a", GetTabTitle());
   EXPECT_EQ(frames, GetTabURL());
 }

 // TODO(mpcomplete): enable this when Bug 734372 is fixed:
 // "Doing a session history navigation does not restore newly-created subframe
 // document state"
 // Test that back/forward preserves POST data and document state when navigating
 // across frames (ie, from frame -> nonframe).
 // Hangs, see http://crbug.com/45058.
 IN_PROC_BROWSER_TEST_F(SessionHistoryTest, CrossFrameFormBackForward) {
   ASSERT_FALSE(CanGoBack());

   GURL frames(GetURL("frames.html"));
   ASSERT_NO_FATAL_FAILURE(NavigateAndCheckTitle("frames.html", "bot1"));

   ClickLink("aform");
   EXPECT_EQ("form", GetTabTitle());
   EXPECT_EQ(frames, GetTabURL());

   SubmitForm("isubmit");
   EXPECT_EQ("text=&select=a", GetTabTitle());
   EXPECT_EQ(frames, GetTabURL());

   GoBack();
   EXPECT_EQ("form", GetTabTitle());
   EXPECT_EQ(frames, GetTabURL());

   // history is [blank, bot1, *form, post]

   ASSERT_NO_FATAL_FAILURE(NavigateAndCheckTitle("bot2.html", "bot2"));

   // history is [blank, bot1, form, *bot2]

   GoBack();
   EXPECT_EQ("bot1", GetTabTitle());
   EXPECT_EQ(frames, GetTabURL());

   SubmitForm("isubmit");
   EXPECT_EQ("text=&select=a", GetTabTitle());
   EXPECT_EQ(frames, GetTabURL());
 }

 // Test that back/forward entries are created for reference fragment
 // navigations. Bug 730379.
 // If this flakes use http://crbug.com/61619.
 IN_PROC_BROWSER_TEST_F(SessionHistoryTest, FragmentBackForward) {
   embedded_test_server()->RegisterRequestHandler(
       base::Bind(&HandleEchoTitleRequest, "/echotitle"));

   ASSERT_FALSE(CanGoBack());

   GURL fragment(GetURL("fragment.html"));
   ASSERT_NO_FATAL_FAILURE(NavigateAndCheckTitle("fragment.html", "fragment"));

   ASSERT_NO_FATAL_FAILURE(NavigateAndCheckTitle("fragment.html#a", "fragment"));
   ASSERT_NO_FATAL_FAILURE(NavigateAndCheckTitle("fragment.html#b", "fragment"));
   ASSERT_NO_FATAL_FAILURE(NavigateAndCheckTitle("fragment.html#c", "fragment"));

   // history is [blank, fragment, fragment#a, fragment#b, *fragment#c]

   GoBack();
   EXPECT_EQ(GetURL("fragment.html#b"), GetTabURL());

   GoBack();
   EXPECT_EQ(GetURL("fragment.html#a"), GetTabURL());

   GoBack();
   EXPECT_EQ(GetURL("fragment.html"), GetTabURL());

   GoForward();
   EXPECT_EQ(GetURL("fragment.html#a"), GetTabURL());

   ASSERT_NO_FATAL_FAILURE(NavigateAndCheckTitle("bot3.html", "bot3"));

   // history is [blank, fragment, fragment#a, bot3]

   ASSERT_FALSE(CanGoForward());
   EXPECT_EQ(GetURL("bot3.html"), GetTabURL());

   GoBack();
   EXPECT_EQ(GetURL("fragment.html#a"), GetTabURL());

   GoBack();
   EXPECT_EQ(GetURL("fragment.html"), GetTabURL());
 }

 // Test that the javascript window.history object works.
 // NOTE: history.go(N) does not do anything if N is outside the bounds of the
 // back/forward list (such as trigger our start/stop loading events).  This
 // means the test will hang if it attempts to navigate too far forward or back,
 // since we'll be waiting forever for a load stop event.
 //
 // TODO(brettw) bug 50648: fix flakyness. This test seems like it was failing
 // about 1/4 of the time on Vista by failing to execute JavascriptGo (see bug).
 IN_PROC_BROWSER_TEST_F(SessionHistoryTest, JavascriptHistory) {
   ASSERT_FALSE(CanGoBack());

   ASSERT_NO_FATAL_FAILURE(NavigateAndCheckTitle("bot1.html", "bot1"));
   ASSERT_NO_FATAL_FAILURE(NavigateAndCheckTitle("bot2.html", "bot2"));
   ASSERT_NO_FATAL_FAILURE(NavigateAndCheckTitle("bot3.html", "bot3"));

   // history is [blank, bot1, bot2, *bot3]

   JavascriptGo("-1");
   EXPECT_EQ("bot2", GetTabTitle());

   JavascriptGo("-1");
   EXPECT_EQ("bot1", GetTabTitle());

   JavascriptGo("1");
   EXPECT_EQ("bot2", GetTabTitle());

   JavascriptGo("-1");
   EXPECT_EQ("bot1", GetTabTitle());

   JavascriptGo("2");
   EXPECT_EQ("bot3", GetTabTitle());

   // history is [blank, bot1, bot2, *bot3]

   JavascriptGo("-3");
   EXPECT_EQ(std::string(url::kAboutBlankURL), GetTabTitle());

   ASSERT_FALSE(CanGoBack());
   EXPECT_EQ(std::string(url::kAboutBlankURL), GetTabTitle());

   JavascriptGo("1");
   EXPECT_EQ("bot1", GetTabTitle());

   ASSERT_NO_FATAL_FAILURE(NavigateAndCheckTitle("bot3.html", "bot3"));

   // history is [blank, bot1, *bot3]

   ASSERT_FALSE(CanGoForward());
   EXPECT_EQ("bot3", GetTabTitle());

   JavascriptGo("-1");
   EXPECT_EQ("bot1", GetTabTitle());

   JavascriptGo("-1");
   EXPECT_EQ(std::string(url::kAboutBlankURL), GetTabTitle());

   ASSERT_FALSE(CanGoBack());
   EXPECT_EQ(std::string(url::kAboutBlankURL), GetTabTitle());

   JavascriptGo("1");
   EXPECT_EQ("bot1", GetTabTitle());

   JavascriptGo("1");
   EXPECT_EQ("bot3", GetTabTitle());

   // TODO(creis): Test that JavaScript history navigations work across tab
   // types.  For example, load about:network in a tab, then a real page, then
   // try to go back and forward with JavaScript.  Bug 1136715.
   // (Hard to test right now, because pages like about:network cause the
   // TabProxy to hang.  This is because they do not appear to use the
   // NotificationService.)
 }

 // This test is failing consistently. See http://crbug.com/22560
 IN_PROC_BROWSER_TEST_F(SessionHistoryTest, LocationReplace) {
   // Test that using location.replace doesn't leave the title of the old page
   // visible.
   ASSERT_NO_FATAL_FAILURE(NavigateAndCheckTitle(
       "replace.html?bot1.html", "bot1"));
 }

 IN_PROC_BROWSER_TEST_F(SessionHistoryTest, LocationChangeInSubframe) {
   ASSERT_NO_FATAL_FAILURE(NavigateAndCheckTitle(
       "location_redirect.html", "Default Title"));

   NavigateToURL(shell(), GURL("javascript:void(frames[0].navigate())"));
   EXPECT_EQ("foo", GetTabTitle());

   GoBack();
   EXPECT_EQ("Default Title", GetTabTitle());
 }

 // http://code.google.com/p/chromium/issues/detail?id=56267
 IN_PROC_BROWSER_TEST_F(SessionHistoryTest, HistoryLength) {
   int length;
   ASSERT_TRUE(ExecuteScriptAndExtractInt(
       shell()->web_contents(),
       "domAutomationController.send(history.length)",
       &length));
   EXPECT_EQ(1, length);

   NavigateToURL(shell(), GetURL("title1.html"));

   ASSERT_TRUE(ExecuteScriptAndExtractInt(
       shell()->web_contents(),
       "domAutomationController.send(history.length)",
       &length));
   EXPECT_EQ(2, length);

   // Now test that history.length is updated when the navigation is committed.
   NavigateToURL(shell(), GetURL("record_length.html"));

   ASSERT_TRUE(ExecuteScriptAndExtractInt(
       shell()->web_contents(),
       "domAutomationController.send(history.length)",
       &length));
   EXPECT_EQ(3, length);

   GoBack();
   GoBack();

   // Ensure history.length is properly truncated.
   NavigateToURL(shell(), GetURL("title2.html"));

   ASSERT_TRUE(ExecuteScriptAndExtractInt(
       shell()->web_contents(),
       "domAutomationController.send(history.length)",
       &length));
   EXPECT_EQ(2, length);
 }

 }  // namespace content
	// Copyright (c) 2012 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 "base/strings/string_util.h"
	#include "base/strings/stringprintf.h"
	#include "base/strings/utf_string_conversions.h"
	#include "content/public/browser/navigation_controller.h"
	#include "content/public/browser/notification_service.h"
	#include "content/public/browser/notification_types.h"
	#include "content/public/browser/web_contents.h"
	#include "content/public/common/url_constants.h"
	#include "content/public/test/browser_test_utils.h"
	#include "content/public/test/content_browser_test.h"
	#include "content/public/test/content_browser_test_utils.h"
	#include "content/public/test/test_utils.h"
	#include "content/shell/browser/shell.h"
	#include "net/test/embedded_test_server/embedded_test_server.h"
	#include "net/test/embedded_test_server/http_request.h"
	#include "net/test/embedded_test_server/http_response.h"
	#include "testing/gtest/include/gtest/gtest.h"

	namespace content {

	namespace {

	// Handles \|request\| by serving a response with title set to request contents.
	scoped_ptr<net::test_server::HttpResponse> HandleEchoTitleRequest(
	const std::string& echotitle_path,
	const net::test_server::HttpRequest& request) {
	if (!base::StartsWith(request.relative_url, echotitle_path,
	base::CompareCase::SENSITIVE))
	return scoped_ptr<net::test_server::HttpResponse>();

	scoped_ptr<net::test_server::BasicHttpResponse> http_response(
	new net::test_server::BasicHttpResponse);
	http_response->set_code(net::HTTP_OK);
	http_response->set_content(
	base::StringPrintf(
	"<html><head><title>%s</title></head></html>",
	request.content.c_str()));
	return http_response.Pass();
	}

	} // namespace

	class SessionHistoryTest : public ContentBrowserTest {
	protected:
	SessionHistoryTest() {}

	void SetUpOnMainThread() override {
	ASSERT_TRUE(embedded_test_server()->InitializeAndWaitUntilReady());
	embedded_test_server()->RegisterRequestHandler(
	base::Bind(&HandleEchoTitleRequest, "/echotitle"));

	NavigateToURL(shell(), GURL(url::kAboutBlankURL));
	}

	// Simulate clicking a link. Only works on the frames.html testserver page.
	void ClickLink(std::string node_id) {
	GURL url("javascript:clickLink('" + node_id + "')");
	NavigateToURL(shell(), url);
	}

	// Simulate filling in form data. Only works on the frames.html page with
	// subframe = form.html, and on form.html itself.
	void FillForm(std::string node_id, std::string value) {
	GURL url("javascript:fillForm('" + node_id + "', '" + value + "')");
	// This will return immediately, but since the JS executes synchronously
	// on the renderer, it will complete before the next navigate message is
	// processed.
	NavigateToURL(shell(), url);
	}

	// Simulate submitting a form. Only works on the frames.html page with
	// subframe = form.html, and on form.html itself.
	void SubmitForm(std::string node_id) {
	GURL url("javascript:submitForm('" + node_id + "')");
	NavigateToURL(shell(), url);
	}

	// Navigate session history using history.go(distance).
	void JavascriptGo(std::string distance) {
	GURL url("javascript:history.go('" + distance + "')");
	NavigateToURL(shell(), url);
	}

	std::string GetTabTitle() {
	return base::UTF16ToASCII(shell()->web_contents()->GetTitle());
	}

	GURL GetTabURL() {
	return shell()->web_contents()->GetLastCommittedURL();
	}

	GURL GetURL(const std::string file) {
	return embedded_test_server()->GetURL(
	std::string("/session_history/") + file);
	}

	void NavigateAndCheckTitle(const char* filename,
	const std::string& expected_title) {
	base::string16 expected_title16(base::ASCIIToUTF16(expected_title));
	TitleWatcher title_watcher(shell()->web_contents(), expected_title16);
	NavigateToURL(shell(), GetURL(filename));
	ASSERT_EQ(expected_title16, title_watcher.WaitAndGetTitle());
	}

	bool CanGoBack() {
	return shell()->web_contents()->GetController().CanGoBack();
	}

	bool CanGoForward() {
	return shell()->web_contents()->GetController().CanGoForward();
	}

	void GoBack() {
	WindowedNotificationObserver load_stop_observer(
	NOTIFICATION_LOAD_STOP,
	NotificationService::AllSources());
	shell()->web_contents()->GetController().GoBack();
	load_stop_observer.Wait();
	}

	void GoForward() {
	WindowedNotificationObserver load_stop_observer(
	NOTIFICATION_LOAD_STOP,
	NotificationService::AllSources());
	shell()->web_contents()->GetController().GoForward();
	load_stop_observer.Wait();
	}
	};

	// If this flakes, use http://crbug.com/61619 on windows and
	// http://crbug.com/102094 on mac.
	IN_PROC_BROWSER_TEST_F(SessionHistoryTest, BasicBackForward) {
	ASSERT_FALSE(CanGoBack());

	ASSERT_NO_FATAL_FAILURE(NavigateAndCheckTitle("bot1.html", "bot1"));
	ASSERT_NO_FATAL_FAILURE(NavigateAndCheckTitle("bot2.html", "bot2"));
	ASSERT_NO_FATAL_FAILURE(NavigateAndCheckTitle("bot3.html", "bot3"));

	// history is [blank, bot1, bot2, *bot3]

	GoBack();
	EXPECT_EQ("bot2", GetTabTitle());

	GoBack();
	EXPECT_EQ("bot1", GetTabTitle());

	GoForward();
	EXPECT_EQ("bot2", GetTabTitle());

	GoBack();
	EXPECT_EQ("bot1", GetTabTitle());

	ASSERT_NO_FATAL_FAILURE(NavigateAndCheckTitle("bot3.html", "bot3"));

	// history is [blank, bot1, *bot3]

	ASSERT_FALSE(CanGoForward());
	EXPECT_EQ("bot3", GetTabTitle());

	GoBack();
	EXPECT_EQ("bot1", GetTabTitle());

	GoBack();
	EXPECT_EQ(std::string(url::kAboutBlankURL), GetTabTitle());

	ASSERT_FALSE(CanGoBack());
	EXPECT_EQ(std::string(url::kAboutBlankURL), GetTabTitle());

	GoForward();
	EXPECT_EQ("bot1", GetTabTitle());

	GoForward();
	EXPECT_EQ("bot3", GetTabTitle());
	}

	// Test that back/forward works when navigating in subframes.
	// If this flakes, use http://crbug.com/48833
	IN_PROC_BROWSER_TEST_F(SessionHistoryTest, FrameBackForward) {
	ASSERT_FALSE(CanGoBack());

	ASSERT_NO_FATAL_FAILURE(NavigateAndCheckTitle("frames.html", "bot1"));

	ClickLink("abot2");
	EXPECT_EQ("bot2", GetTabTitle());
	GURL frames(GetURL("frames.html"));
	EXPECT_EQ(frames, GetTabURL());

	ClickLink("abot3");
	EXPECT_EQ("bot3", GetTabTitle());
	EXPECT_EQ(frames, GetTabURL());

	// history is [blank, bot1, bot2, *bot3]

	GoBack();
	EXPECT_EQ("bot2", GetTabTitle());
	EXPECT_EQ(frames, GetTabURL());

	GoBack();
	EXPECT_EQ("bot1", GetTabTitle());
	EXPECT_EQ(frames, GetTabURL());

	GoBack();
	EXPECT_EQ(std::string(url::kAboutBlankURL), GetTabTitle());
	EXPECT_EQ(GURL(url::kAboutBlankURL), GetTabURL());

	GoForward();
	EXPECT_EQ("bot1", GetTabTitle());
	EXPECT_EQ(frames, GetTabURL());

	GoForward();
	EXPECT_EQ("bot2", GetTabTitle());
	EXPECT_EQ(frames, GetTabURL());

	ClickLink("abot1");
	EXPECT_EQ("bot1", GetTabTitle());
	EXPECT_EQ(frames, GetTabURL());

	// history is [blank, bot1, bot2, *bot1]

	ASSERT_FALSE(CanGoForward());
	EXPECT_EQ("bot1", GetTabTitle());
	EXPECT_EQ(frames, GetTabURL());

	GoBack();
	EXPECT_EQ("bot2", GetTabTitle());
	EXPECT_EQ(frames, GetTabURL());

	GoBack();
	EXPECT_EQ("bot1", GetTabTitle());
	EXPECT_EQ(frames, GetTabURL());
	}

	// Test that back/forward preserves POST data and document state in subframes.
	// If this flakes use http://crbug.com/61619
	IN_PROC_BROWSER_TEST_F(SessionHistoryTest, FrameFormBackForward) {
	ASSERT_FALSE(CanGoBack());

	ASSERT_NO_FATAL_FAILURE(NavigateAndCheckTitle("frames.html", "bot1"));

	ClickLink("aform");
	EXPECT_EQ("form", GetTabTitle());
	GURL frames(GetURL("frames.html"));
	EXPECT_EQ(frames, GetTabURL());

	SubmitForm("isubmit");
	EXPECT_EQ("text=&select=a", GetTabTitle());
	EXPECT_EQ(frames, GetTabURL());

	GoBack();
	EXPECT_EQ("form", GetTabTitle());
	EXPECT_EQ(frames, GetTabURL());

	// history is [blank, bot1, *form, post]

	ClickLink("abot2");
	EXPECT_EQ("bot2", GetTabTitle());
	EXPECT_EQ(frames, GetTabURL());

	// history is [blank, bot1, form, *bot2]

	GoBack();
	EXPECT_EQ("form", GetTabTitle());
	EXPECT_EQ(frames, GetTabURL());

	SubmitForm("isubmit");
	EXPECT_EQ("text=&select=a", GetTabTitle());
	EXPECT_EQ(frames, GetTabURL());

	// history is [blank, bot1, form, *post]

	// TODO(mpcomplete): reenable this when WebKit bug 10199 is fixed:
	// "returning to a POST result within a frame does a GET instead of a POST"
	ClickLink("abot2");
	EXPECT_EQ("bot2", GetTabTitle());
	EXPECT_EQ(frames, GetTabURL());

	GoBack();
	EXPECT_EQ("text=&select=a", GetTabTitle());
	EXPECT_EQ(frames, GetTabURL());
	}

	// TODO(mpcomplete): enable this when Bug 734372 is fixed:
	// "Doing a session history navigation does not restore newly-created subframe
	// document state"
	// Test that back/forward preserves POST data and document state when navigating
	// across frames (ie, from frame -> nonframe).
	// Hangs, see http://crbug.com/45058.
	IN_PROC_BROWSER_TEST_F(SessionHistoryTest, CrossFrameFormBackForward) {
	ASSERT_FALSE(CanGoBack());

	GURL frames(GetURL("frames.html"));
	ASSERT_NO_FATAL_FAILURE(NavigateAndCheckTitle("frames.html", "bot1"));

	ClickLink("aform");
	EXPECT_EQ("form", GetTabTitle());
	EXPECT_EQ(frames, GetTabURL());

	SubmitForm("isubmit");
	EXPECT_EQ("text=&select=a", GetTabTitle());
	EXPECT_EQ(frames, GetTabURL());

	GoBack();
	EXPECT_EQ("form", GetTabTitle());
	EXPECT_EQ(frames, GetTabURL());

	// history is [blank, bot1, *form, post]

	ASSERT_NO_FATAL_FAILURE(NavigateAndCheckTitle("bot2.html", "bot2"));

	// history is [blank, bot1, form, *bot2]

	GoBack();
	EXPECT_EQ("bot1", GetTabTitle());
	EXPECT_EQ(frames, GetTabURL());

	SubmitForm("isubmit");
	EXPECT_EQ("text=&select=a", GetTabTitle());
	EXPECT_EQ(frames, GetTabURL());
	}

	// Test that back/forward entries are created for reference fragment
	// navigations. Bug 730379.
	// If this flakes use http://crbug.com/61619.
	IN_PROC_BROWSER_TEST_F(SessionHistoryTest, FragmentBackForward) {
	embedded_test_server()->RegisterRequestHandler(
	base::Bind(&HandleEchoTitleRequest, "/echotitle"));

	ASSERT_FALSE(CanGoBack());

	GURL fragment(GetURL("fragment.html"));
	ASSERT_NO_FATAL_FAILURE(NavigateAndCheckTitle("fragment.html", "fragment"));

	ASSERT_NO_FATAL_FAILURE(NavigateAndCheckTitle("fragment.html#a", "fragment"));
	ASSERT_NO_FATAL_FAILURE(NavigateAndCheckTitle("fragment.html#b", "fragment"));
	ASSERT_NO_FATAL_FAILURE(NavigateAndCheckTitle("fragment.html#c", "fragment"));

	// history is [blank, fragment, fragment#a, fragment#b, *fragment#c]

	GoBack();
	EXPECT_EQ(GetURL("fragment.html#b"), GetTabURL());

	GoBack();
	EXPECT_EQ(GetURL("fragment.html#a"), GetTabURL());

	GoBack();
	EXPECT_EQ(GetURL("fragment.html"), GetTabURL());

	GoForward();
	EXPECT_EQ(GetURL("fragment.html#a"), GetTabURL());

	ASSERT_NO_FATAL_FAILURE(NavigateAndCheckTitle("bot3.html", "bot3"));

	// history is [blank, fragment, fragment#a, bot3]

	ASSERT_FALSE(CanGoForward());
	EXPECT_EQ(GetURL("bot3.html"), GetTabURL());

	GoBack();
	EXPECT_EQ(GetURL("fragment.html#a"), GetTabURL());

	GoBack();
	EXPECT_EQ(GetURL("fragment.html"), GetTabURL());
	}

	// Test that the javascript window.history object works.
	// NOTE: history.go(N) does not do anything if N is outside the bounds of the
	// back/forward list (such as trigger our start/stop loading events). This
	// means the test will hang if it attempts to navigate too far forward or back,
	// since we'll be waiting forever for a load stop event.
	//
	// TODO(brettw) bug 50648: fix flakyness. This test seems like it was failing
	// about 1/4 of the time on Vista by failing to execute JavascriptGo (see bug).
	IN_PROC_BROWSER_TEST_F(SessionHistoryTest, JavascriptHistory) {
	ASSERT_FALSE(CanGoBack());

	ASSERT_NO_FATAL_FAILURE(NavigateAndCheckTitle("bot1.html", "bot1"));
	ASSERT_NO_FATAL_FAILURE(NavigateAndCheckTitle("bot2.html", "bot2"));
	ASSERT_NO_FATAL_FAILURE(NavigateAndCheckTitle("bot3.html", "bot3"));

	// history is [blank, bot1, bot2, *bot3]

	JavascriptGo("-1");
	EXPECT_EQ("bot2", GetTabTitle());

	JavascriptGo("-1");
	EXPECT_EQ("bot1", GetTabTitle());

	JavascriptGo("1");
	EXPECT_EQ("bot2", GetTabTitle());

	JavascriptGo("-1");
	EXPECT_EQ("bot1", GetTabTitle());

	JavascriptGo("2");
	EXPECT_EQ("bot3", GetTabTitle());

	// history is [blank, bot1, bot2, *bot3]

	JavascriptGo("-3");
	EXPECT_EQ(std::string(url::kAboutBlankURL), GetTabTitle());

	ASSERT_FALSE(CanGoBack());
	EXPECT_EQ(std::string(url::kAboutBlankURL), GetTabTitle());

	JavascriptGo("1");
	EXPECT_EQ("bot1", GetTabTitle());

	ASSERT_NO_FATAL_FAILURE(NavigateAndCheckTitle("bot3.html", "bot3"));

	// history is [blank, bot1, *bot3]

	ASSERT_FALSE(CanGoForward());
	EXPECT_EQ("bot3", GetTabTitle());

	JavascriptGo("-1");
	EXPECT_EQ("bot1", GetTabTitle());

	JavascriptGo("-1");
	EXPECT_EQ(std::string(url::kAboutBlankURL), GetTabTitle());

	ASSERT_FALSE(CanGoBack());
	EXPECT_EQ(std::string(url::kAboutBlankURL), GetTabTitle());

	JavascriptGo("1");
	EXPECT_EQ("bot1", GetTabTitle());

	JavascriptGo("1");
	EXPECT_EQ("bot3", GetTabTitle());

	// TODO(creis): Test that JavaScript history navigations work across tab
	// types. For example, load about:network in a tab, then a real page, then
	// try to go back and forward with JavaScript. Bug 1136715.
	// (Hard to test right now, because pages like about:network cause the
	// TabProxy to hang. This is because they do not appear to use the
	// NotificationService.)
	}

	// This test is failing consistently. See http://crbug.com/22560
	IN_PROC_BROWSER_TEST_F(SessionHistoryTest, LocationReplace) {
	// Test that using location.replace doesn't leave the title of the old page
	// visible.
	ASSERT_NO_FATAL_FAILURE(NavigateAndCheckTitle(
	"replace.html?bot1.html", "bot1"));
	}

	IN_PROC_BROWSER_TEST_F(SessionHistoryTest, LocationChangeInSubframe) {
	ASSERT_NO_FATAL_FAILURE(NavigateAndCheckTitle(
	"location_redirect.html", "Default Title"));

	NavigateToURL(shell(), GURL("javascript:void(frames[0].navigate())"));
	EXPECT_EQ("foo", GetTabTitle());

	GoBack();
	EXPECT_EQ("Default Title", GetTabTitle());
	}

	// http://code.google.com/p/chromium/issues/detail?id=56267
	IN_PROC_BROWSER_TEST_F(SessionHistoryTest, HistoryLength) {
	int length;
	ASSERT_TRUE(ExecuteScriptAndExtractInt(
	shell()->web_contents(),
	"domAutomationController.send(history.length)",
	&length));
	EXPECT_EQ(1, length);

	NavigateToURL(shell(), GetURL("title1.html"));

	ASSERT_TRUE(ExecuteScriptAndExtractInt(
	shell()->web_contents(),
	"domAutomationController.send(history.length)",
	&length));
	EXPECT_EQ(2, length);

	// Now test that history.length is updated when the navigation is committed.
	NavigateToURL(shell(), GetURL("record_length.html"));

	ASSERT_TRUE(ExecuteScriptAndExtractInt(
	shell()->web_contents(),
	"domAutomationController.send(history.length)",
	&length));
	EXPECT_EQ(3, length);

	GoBack();
	GoBack();

	// Ensure history.length is properly truncated.
	NavigateToURL(shell(), GetURL("title2.html"));

	ASSERT_TRUE(ExecuteScriptAndExtractInt(
	shell()->web_contents(),
	"domAutomationController.send(history.length)",
	&length));
	EXPECT_EQ(2, length);
	}

	} // namespace content