Fall back to local page if online NTP fails to load.

chrome/browser/ui/search/instant_extended_interactive_uitest.cc

 // Copyright 2013 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 <sstream>
 
 #include "base/prefs/pref_service.h"
 #include "base/string_util.h"
 #include "base/stringprintf.h"
 #include "base/utf_string_conversions.h"
@@ skipping 684 matching lines @@
   ui_test_utils::NavigateToURLWithDisposition(
       browser(),
       GURL(chrome::kChromeUINewTabURL),
       NEW_FOREGROUND_TAB,
       ui_test_utils::BROWSER_TEST_WAIT_FOR_TAB);
   content::WebContents* active_tab =
       browser()->tab_strip_model()->GetActiveWebContents();
   EXPECT_NE(ntp_url, active_tab->GetURL());
 }
 
+IN_PROC_BROWSER_TEST_F(InstantExtendedTest, RedirectToLocalOnLoadFailure) {

[samarth, 2013/05/02 03:12:56]

Please also add a test to test that instanttabs get data re-sent to them when
there's a navigation in there.

[David Black, 2013/05/02 05:02:49]

Ok.  Will work on that (and on making this test work correctly) tomorrow.

+  // Change providers.
+  InstantTestBase::Init(GURL("chrome://path-that-will-surely-404"));//asdf
+
+  // Setup Instant.
+  ASSERT_NO_FATAL_FAILURE(SetupInstant(browser()));
+  FocusOmniboxAndWaitForInstantOverlayAndNTPSupport();
+
+  content::WindowedNotificationObserver instant_tab_observer(
+      chrome::NOTIFICATION_INSTANT_TAB_SUPPORT_DETERMINED,
+      content::NotificationService::AllSources());
+  instant_tab_observer.Wait();
+
+  // DO NOT SUBMIT: None of this works yet.
+
+  // NTP contents should be preloaded.
+  ASSERT_NE(static_cast<InstantNTP*>(NULL), instant()->ntp());
+  content::WebContents* ntp_contents = instant()->ntp_->contents();
+  EXPECT_TRUE(ntp_contents);
+  GURL ntp_url = ntp_contents->GetURL();
+  EXPECT_EQ(chrome::kChromeSearchLocalNtpUrl, ntp_url.spec());//DEBUG asdf
+
+  // Overlay contents should be preloaded.
+  ASSERT_NE(static_cast<InstantOverlay*>(NULL), instant()->overlay());
+  content::WebContents* overlay_contents = instant()->overlay_->contents();
+  EXPECT_TRUE(overlay_contents);
+  GURL overlay_url = overlay_contents->GetURL();
+  EXPECT_EQ(chrome::kChromeSearchLocalNtpUrl, overlay_url.spec());//DEBUG asdf
+
+  // Instant tab contents should be preloaded.
+  ASSERT_NE(static_cast<InstantTab*>(NULL), instant()->instant_tab());
+  content::WebContents* instant_tab_contents =
+      instant()->instant_tab_->contents();
+  EXPECT_TRUE(instant_tab_contents);
+  GURL instant_tab_url = instant_tab_contents->GetURL();
+  EXPECT_EQ(chrome::kChromeSearchLocalNtpUrl, instant_tab_url.spec());//DEBUG
+}
+
 IN_PROC_BROWSER_TEST_F(InstantExtendedTest, OmniboxHasFocusOnNewTab) {
   // Setup Instant.
   ASSERT_NO_FATAL_FAILURE(SetupInstant(browser()));
   FocusOmniboxAndWaitForInstantOverlayAndNTPSupport();
 
   // Explicitly unfocus the omnibox.
   EXPECT_TRUE(ui_test_utils::BringBrowserWindowToFront(browser()));
   ui_test_utils::ClickOnView(browser(), VIEW_ID_TAB_CONTAINER);
   EXPECT_FALSE(omnibox()->model()->has_focus());
 
@@ skipping 1139 matching lines @@
 
   SendDownArrow();
   EXPECT_EQ("result 1", GetOmniboxText());
 
   // Press Enter.
   browser()->window()->GetLocationBar()->AcceptInput();
 
   // Confirm that the Instant overlay was NOT committed.
   EXPECT_NE(overlay, browser()->tab_strip_model()->GetActiveWebContents());
 }