Revert 244407 "InstantExtended: remove dead code related to the ..."

trunk/src/chrome/browser/search/instant_service_unittest.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 <string>
 #include <vector>
 
 #include "base/memory/scoped_ptr.h"
 #include "base/metrics/field_trial.h"
 #include "base/strings/string_util.h"
 #include "chrome/browser/search/instant_service.h"
 #include "chrome/browser/search/instant_service_observer.h"
 #include "chrome/browser/search/instant_unittest_base.h"
 #include "chrome/browser/search/search.h"
 #include "chrome/browser/ui/browser.h"
 #include "chrome/browser/ui/browser_window.h"
 #include "chrome/browser/ui/host_desktop.h"
 #include "chrome/browser/ui/search/instant_search_prerenderer.h"
 #include "chrome/common/render_messages.h"
 #include "components/variations/entropy_provider.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/browser/web_contents_observer.h"
 #include "content/public/test/mock_render_process_host.h"
 #include "ipc/ipc_message.h"
 #include "ipc/ipc_test_sink.h"
 #include "testing/gmock/include/gmock/gmock.h"
 #include "url/gurl.h"
 
 class MockInstantServiceObserver : public InstantServiceObserver {
  public:
   MOCK_METHOD0(DefaultSearchProviderChanged, void());
   MOCK_METHOD0(GoogleURLUpdated, void());
 };
 
+class MockWebContentsObserver : public content::WebContentsObserver {
+ public:
+  MOCK_METHOD1(WebContentsDestroyed, void(content::WebContents*));
+
+  // Dumb override to make MSVC happy.
+  void Observe_(content::WebContents* contents) {
+    content::WebContentsObserver::Observe(contents);
+  }
+
+ protected:
+  friend class InstantServiceTest;
+  FRIEND_TEST_ALL_PREFIXES(InstantServiceTest,
+      DispatchDefaultSearchProviderChanged);
+  FRIEND_TEST_ALL_PREFIXES(InstantServiceTest, DispatchGoogleURLUpdated);
+};
+
 class InstantServiceTest : public InstantUnitTestBase {
  protected:
   virtual void SetUp() OVERRIDE {
     InstantUnitTestBase::SetUpWithoutCacheableNTP();
 
     instant_service_observer_.reset(new MockInstantServiceObserver());
     instant_service_->AddObserver(instant_service_observer_.get());
+
+    instant_ntp_contents_observer_.reset(new MockWebContentsObserver());
+    instant_ntp_contents_observer_->Observe_(
+        instant_service_->GetNTPContents());
   }
 
   virtual void TearDown() OVERRIDE {
     instant_service_->RemoveObserver(instant_service_observer_.get());
+    instant_ntp_contents_observer_->Observe_(NULL);
     InstantUnitTestBase::TearDown();
   }
 
   InstantSearchPrerenderer* GetInstantSearchPrerenderer() {
     return instant_service_->instant_search_prerenderer();
   }
 
   scoped_ptr<MockInstantServiceObserver> instant_service_observer_;
+  scoped_ptr<MockWebContentsObserver> instant_ntp_contents_observer_;
 };
 
 TEST_F(InstantServiceTest, DispatchDefaultSearchProviderChanged) {
   EXPECT_CALL(*instant_service_observer_.get(), DefaultSearchProviderChanged())
       .Times(1);
+  EXPECT_CALL(*instant_ntp_contents_observer_.get(),
+              WebContentsDestroyed(instant_service_->GetNTPContents()))
+      .Times(1);
 
+  GURL ntp_url = instant_service_->GetNTPContents()->GetURL();
   const std::string& new_base_url = "https://bar.com/";
   SetDefaultSearchProvider(new_base_url);
+  GURL new_ntp_url = instant_service_->GetNTPContents()->GetURL();
+  EXPECT_NE(ntp_url, new_ntp_url);
+  EXPECT_TRUE(StartsWithASCII(new_ntp_url.spec(), new_base_url, true));
 }
 
 TEST_F(InstantServiceTest, DispatchGoogleURLUpdated) {
   EXPECT_CALL(*instant_service_observer_.get(), GoogleURLUpdated()).Times(1);
+  EXPECT_CALL(*instant_ntp_contents_observer_.get(),
+              WebContentsDestroyed(instant_service_->GetNTPContents()))
+      .Times(1);
 
+  GURL ntp_url = instant_service_->GetNTPContents()->GetURL();
   const std::string& new_base_url = "https://www.google.es/";
   NotifyGoogleBaseURLUpdate(new_base_url);
+  GURL new_ntp_url = instant_service_->GetNTPContents()->GetURL();
+  EXPECT_NE(ntp_url, new_ntp_url);
+  EXPECT_TRUE(StartsWithASCII(new_ntp_url.spec(), new_base_url, true));
 }
 
 TEST_F(InstantServiceTest, SendsSearchURLsToRenderer) {
   ASSERT_TRUE(base::FieldTrialList::CreateFieldTrial("EmbeddedSearch",
       "Group1 use_cacheable_ntp:1"));
   scoped_ptr<content::MockRenderProcessHost> rph(
       new content::MockRenderProcessHost(profile()));
   rph->sink().ClearMessages();
   instant_service_->Observe(
       content::NOTIFICATION_RENDERER_PROCESS_CREATED,
@@ skipping 51 matching lines @@
   EXPECT_CALL(*instant_service_observer_.get(), GoogleURLUpdated()).Times(1);
 
   SetDefaultSearchProvider("https://google.com/");
   InstantSearchPrerenderer* old_prerenderer = GetInstantSearchPrerenderer();
   EXPECT_NE(static_cast<InstantSearchPrerenderer*>(NULL), old_prerenderer);
 
   const std::string& new_base_url = "https://www.google.es/";
   NotifyGoogleBaseURLUpdate(new_base_url);
   EXPECT_NE(old_prerenderer, GetInstantSearchPrerenderer());
 }