Add asserts to TestingProfile::CreateHistoryService to ensure files are deleted

chrome/browser/autocomplete/history_url_provider_unittest.cc

 // 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 "chrome/browser/autocomplete/history_url_provider.h"
 
 #include <algorithm>
 
 #include "base/message_loop/message_loop.h"
 #include "base/path_service.h"
@@ skipping 134 matching lines @@
   virtual void OnProviderUpdate(bool updated_matches) OVERRIDE;
 
  protected:
   static BrowserContextKeyedService* CreateTemplateURLService(
       content::BrowserContext* profile) {
     return new TemplateURLService(static_cast<Profile*>(profile));
   }
 
   // testing::Test
   virtual void SetUp() {
-    SetUpImpl(false);
+    ASSERT_TRUE(SetUpImpl(false));
   }
   virtual void TearDown();
 
   // Does the real setup.
-  void SetUpImpl(bool no_db);
+  bool SetUpImpl(bool no_db) WARN_UNUSED_RESULT;
 
   // Fills test data into the history system.
   void FillData();
 
   // Runs an autocomplete query on |text| and checks to see that the returned
   // results' destination URLs match those provided.  Also allows checking
   // that the input type was identified correctly.
   void RunTest(const string16 text,
                const string16& desired_tld,
                bool prevent_inline_autocomplete,
@@ skipping 17 matching lines @@
   scoped_ptr<TestingProfile> profile_;
   HistoryService* history_service_;
   scoped_refptr<HistoryURLProvider> autocomplete_;
   // Should the matches be sorted and duplicates removed?
   bool sort_matches_;
 };
 
 class HistoryURLProviderTestNoDB : public HistoryURLProviderTest {
  protected:
   virtual void SetUp() {
-    SetUpImpl(true);
+    ASSERT_TRUE(SetUpImpl(true));
   }
 };
 
 void HistoryURLProviderTest::OnProviderUpdate(bool updated_matches) {
   if (autocomplete_->done())
     base::MessageLoop::current()->Quit();
 }
 
-void HistoryURLProviderTest::SetUpImpl(bool no_db) {
+bool HistoryURLProviderTest::SetUpImpl(bool no_db) {
   profile_.reset(new TestingProfile());
-  profile_->CreateHistoryService(true, no_db);
+  if (!(profile_->CreateHistoryService(true, no_db)))
+    return false;
   if (!no_db) {
     profile_->BlockUntilHistoryProcessesPendingRequests();
     profile_->BlockUntilHistoryIndexIsRefreshed();
   }
   history_service_ =
       HistoryServiceFactory::GetForProfile(profile_.get(),
                                            Profile::EXPLICIT_ACCESS);
 
   autocomplete_ = new HistoryURLProvider(this, profile_.get(), "en-US,en,ko");
   TemplateURLServiceFactory::GetInstance()->SetTestingFactoryAndUse(
       profile_.get(), &HistoryURLProviderTest::CreateTemplateURLService);
   FillData();
+  return true;
 }
 
 void HistoryURLProviderTest::TearDown() {
   autocomplete_ = NULL;
 }
 
 void HistoryURLProviderTest::FillData() {
   // All visits are a long time ago (some tests require this since we do some
   // special logic for things visited very recently). Note that this time must
   // be more recent than the "archived history" threshold for the data to go
@@ skipping 612 matching lines @@
       EXPECT_EQ(test_cases[i].offsets[match_index],
                 match.contents_class[match_index].offset);
       EXPECT_EQ(ACMatchClassification::URL |
                 (match_index == test_cases[i].match_classification_index ?
                  ACMatchClassification::MATCH : 0),
                 match.contents_class[match_index].style);
     }
     EXPECT_EQ(npos, test_cases[i].offsets[match.contents_class.size()]);
   }
 }