Browser test for prerendering in general

chrome/browser/prerender/prerender_manager_unittest.cc

 // Copyright (c) 2010 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/time.h"
+#include "chrome/browser/browser_thread.h"
 #include "chrome/browser/prerender/prerender_contents.h"
 #include "chrome/browser/prerender/prerender_manager.h"
 #include "googleurl/src/gurl.h"
 #include "testing/gtest/include/gtest/gtest.h"
 
 namespace {
 
 class DummyPrerenderContents : public PrerenderContents {
  public:
   DummyPrerenderContents(PrerenderManager* prerender_manager, const GURL& url)
@@ skipping 57 matching lines @@
   }
 
   base::Time time_;
   scoped_ptr<PrerenderContents> next_pc_;
 };
 
 }  // namespace
 
 class PrerenderManagerTest : public testing::Test {
  public:
-  PrerenderManagerTest() : prerender_manager_(new TestPrerenderManager()) {
+  PrerenderManagerTest() : prerender_manager_(new TestPrerenderManager()),
+                           ui_thread_(BrowserThread::UI, &message_loop_) {
   }
 
  protected:
   scoped_refptr<TestPrerenderManager> prerender_manager_;
+
+ private:
+  // Needed to pass PrerenderManager's DCHECKs.
+  MessageLoop message_loop_;
+  BrowserThread ui_thread_;
 };
 
 TEST_F(PrerenderManagerTest, EmptyTest) {
   GURL url("http://www.google.com/");
   EXPECT_FALSE(prerender_manager_->MaybeUsePreloadedPage(NULL, url));
 }
 
 TEST_F(PrerenderManagerTest, FoundTest) {
   GURL url("http://www.google.com/");
   DummyPrerenderContents* pc =
@@ skipping 112 matching lines @@
   EXPECT_EQ(NULL, prerender_manager_->GetEntry(not_an_alias_url));
   EXPECT_EQ(pc, prerender_manager_->GetEntry(alias_url1));
   prerender_manager_->SetNextPrerenderContents(pc);
   prerender_manager_->AddSimplePreload(url);
   EXPECT_EQ(pc, prerender_manager_->GetEntry(alias_url2));
   prerender_manager_->SetNextPrerenderContents(pc);
   prerender_manager_->AddSimplePreload(url);
   EXPECT_EQ(pc, prerender_manager_->GetEntry(url));
   delete pc;
 }