Collect some histograms about signed binary downloads.

chrome/browser/safe_browsing/download_protection_service_unittest.cc

 // Copyright (c) 2011 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/safe_browsing/download_protection_service.h"
 
 #include <map>
 #include <string>
 
 #include "base/bind.h"
 #include "base/callback.h"
+#include "base/file_path.h"
 #include "base/memory/ref_counted.h"
 #include "base/memory/scoped_ptr.h"
 #include "base/message_loop.h"
 #include "chrome/common/safe_browsing/csd.pb.h"
 #include "chrome/browser/safe_browsing/safe_browsing_service.h"
 #include "content/browser/browser_thread.h"
+#include "content/browser/download/download_item.h"
+#include "content/public/common/url_fetcher_delegate.h"
 #include "content/test/test_url_fetcher_factory.h"
 #include "googleurl/src/gurl.h"
 #include "testing/gmock/include/gmock/gmock.h"
 #include "testing/gtest/include/gtest/gtest.h"
 
 using ::testing::Return;
 using ::testing::_;
 
 namespace safe_browsing {
 namespace {
 class MockSafeBrowsingService : public SafeBrowsingService {
  public:
   MockSafeBrowsingService() {}
   virtual ~MockSafeBrowsingService() {}
 
   MOCK_METHOD1(MatchDownloadWhitelistUrl, bool(const GURL&));
 
  private:
   DISALLOW_COPY_AND_ASSIGN(MockSafeBrowsingService);
 };
 }  // namespace
 
 class DownloadProtectionServiceTest : public testing::Test {
  protected:
   virtual void SetUp() {
     ui_thread_.reset(new BrowserThread(BrowserThread::UI, &msg_loop_));
-    io_thread_.reset(new BrowserThread(BrowserThread::IO, &msg_loop_));
+    // Start real threads for the IO and File threads so that the DCHECKs
+    // to test that we're on the correct thread work.
+    io_thread_.reset(new BrowserThread(BrowserThread::IO));
+    ASSERT_TRUE(io_thread_->Start());
+    file_thread_.reset(new BrowserThread(BrowserThread::FILE));
+    ASSERT_TRUE(file_thread_->Start());
     sb_service_ = new MockSafeBrowsingService();
-    download_service_ = new DownloadProtectionService(sb_service_.get(),
-                                                      NULL);
+    download_service_ = sb_service_->download_protection_service();
     download_service_->SetEnabled(true);
     msg_loop_.RunAllPending();
   }
 
   virtual void TearDown() {
-    msg_loop_.RunAllPending();
-    download_service_ = NULL;
+    // Flush all of the thread message loops to ensure that there are no
+    // tasks currently running.
+    FlushThreadMessageLoops();
     sb_service_ = NULL;
     io_thread_.reset();
+    file_thread_.reset();
     ui_thread_.reset();
   }
 
   bool RequestContainsResource(const ClientDownloadRequest& request,
                                ClientDownloadRequest::ResourceType type,
                                const std::string& url,
                                const std::string& referrer) {
     for (int i = 0; i < request.resources_size(); ++i) {
       if (request.resources(i).url() == url &&
           request.resources(i).type() == type &&
           (referrer.empty() || request.resources(i).referrer() == referrer)) {
         return true;
       }
     }
     return false;
   }
 
+  // Flushes any pending tasks in the message loops of all threads.
+  void FlushThreadMessageLoops() {
+    FlushMessageLoop(BrowserThread::FILE);
+    FlushMessageLoop(BrowserThread::IO);
+    msg_loop_.RunAllPending();
+  }
+
+ private:
+  // Helper functions for FlushThreadMessageLoops.
+  void RunAllPendingAndQuitUI() {
+    MessageLoop::current()->RunAllPending();
+    BrowserThread::PostTask(
+        BrowserThread::UI,
+        FROM_HERE,
+        base::Bind(&DownloadProtectionServiceTest::QuitMessageLoop,
+                   base::Unretained(this)));
+  }
+
+  void QuitMessageLoop() {
+    MessageLoop::current()->Quit();
+  }
+
+  void PostRunMessageLoopTask(BrowserThread::ID thread) {
+    BrowserThread::PostTask(
+        thread,
+        FROM_HERE,
+        base::Bind(&DownloadProtectionServiceTest::RunAllPendingAndQuitUI,
+                   base::Unretained(this)));
+  }
+
+  void FlushMessageLoop(BrowserThread::ID thread) {
+    BrowserThread::PostTask(
+        BrowserThread::UI,
+        FROM_HERE,
+        base::Bind(&DownloadProtectionServiceTest::PostRunMessageLoopTask,
+                   base::Unretained(this), thread));
+    msg_loop_.Run();
+  }
+
  public:
   void CheckDoneCallback(
       DownloadProtectionService::DownloadCheckResult result) {
     result_ = result;
     msg_loop_.Quit();
   }
 
+  void SendURLFetchComplete(TestURLFetcher* fetcher) {
+    fetcher->delegate()->OnURLFetchComplete(fetcher);
+  }
+
  protected:
   scoped_refptr<MockSafeBrowsingService> sb_service_;
-  scoped_refptr<DownloadProtectionService> download_service_;
+  DownloadProtectionService* download_service_;
   MessageLoop msg_loop_;
   DownloadProtectionService::DownloadCheckResult result_;
   scoped_ptr<BrowserThread> io_thread_;
+  scoped_ptr<BrowserThread> file_thread_;
   scoped_ptr<BrowserThread> ui_thread_;
 };
 
 TEST_F(DownloadProtectionServiceTest, CheckClientDownloadInvalidUrl) {
   DownloadProtectionService::DownloadInfo info;
-  EXPECT_TRUE(download_service_->CheckClientDownload(
+  download_service_->CheckClientDownload(
       info,
       base::Bind(&DownloadProtectionServiceTest::CheckDoneCallback,
-                 base::Unretained(this))));
+                 base::Unretained(this)));
+  msg_loop_.Run();
+  EXPECT_EQ(DownloadProtectionService::SAFE, result_);
+
   // Only http is supported for now.
+  info.local_file = FilePath(FILE_PATH_LITERAL("a.exe"));
   info.download_url_chain.push_back(GURL("https://www.google.com/"));
-  EXPECT_TRUE(download_service_->CheckClientDownload(
+  download_service_->CheckClientDownload(
       info,
       base::Bind(&DownloadProtectionServiceTest::CheckDoneCallback,
-                 base::Unretained(this))));
+                 base::Unretained(this)));
+  msg_loop_.Run();
+  EXPECT_EQ(DownloadProtectionService::SAFE, result_);
+
   info.download_url_chain[0] = GURL("ftp://www.google.com/");
-  EXPECT_TRUE(download_service_->CheckClientDownload(
+  download_service_->CheckClientDownload(
       info,
       base::Bind(&DownloadProtectionServiceTest::CheckDoneCallback,
-                 base::Unretained(this))));
+                 base::Unretained(this)));
+  msg_loop_.Run();
+  EXPECT_EQ(DownloadProtectionService::SAFE, result_);
 }
 
 TEST_F(DownloadProtectionServiceTest, CheckClientDownloadWhitelistedUrl) {
   DownloadProtectionService::DownloadInfo info;
+  info.local_file = FilePath(FILE_PATH_LITERAL("a.exe"));
   info.download_url_chain.push_back(GURL("http://www.evil.com/bla.exe"));
   info.download_url_chain.push_back(GURL("http://www.google.com/a.exe"));
   info.referrer_url = GURL("http://www.google.com/");
 
   EXPECT_CALL(*sb_service_, MatchDownloadWhitelistUrl(_))
       .WillRepeatedly(Return(false));
   EXPECT_CALL(*sb_service_,
               MatchDownloadWhitelistUrl(GURL("http://www.google.com/a.exe")))
       .WillRepeatedly(Return(true));
 
-  EXPECT_FALSE(download_service_->CheckClientDownload(
+  download_service_->CheckClientDownload(
       info,
       base::Bind(&DownloadProtectionServiceTest::CheckDoneCallback,
-                 base::Unretained(this))));
+                 base::Unretained(this)));
   msg_loop_.Run();
   EXPECT_EQ(DownloadProtectionService::SAFE, result_);
 
   // Check that the referrer is matched against the whitelist.
   info.download_url_chain.pop_back();
   info.referrer_url = GURL("http://www.google.com/a.exe");
-  EXPECT_FALSE(download_service_->CheckClientDownload(
+  download_service_->CheckClientDownload(
       info,
       base::Bind(&DownloadProtectionServiceTest::CheckDoneCallback,
-                 base::Unretained(this))));
+                 base::Unretained(this)));
   msg_loop_.Run();
   EXPECT_EQ(DownloadProtectionService::SAFE, result_);
 }
 
 TEST_F(DownloadProtectionServiceTest, CheckClientDownloadFetchFailed) {
   FakeURLFetcherFactory factory;
   // HTTP request will fail.
   factory.SetFakeResponse(
       DownloadProtectionService::kDownloadRequestUrl, "", false);
 
   EXPECT_CALL(*sb_service_, MatchDownloadWhitelistUrl(_))
       .WillRepeatedly(Return(false));
 
   DownloadProtectionService::DownloadInfo info;
+  info.local_file = FilePath(FILE_PATH_LITERAL("a.exe"));
   info.download_url_chain.push_back(GURL("http://www.evil.com/a.exe"));
   info.referrer_url = GURL("http://www.google.com/");
-  EXPECT_FALSE(download_service_->CheckClientDownload(
+  download_service_->CheckClientDownload(
       info,
       base::Bind(&DownloadProtectionServiceTest::CheckDoneCallback,
-                 base::Unretained(this))));
+                 base::Unretained(this)));
   msg_loop_.Run();
   EXPECT_EQ(DownloadProtectionService::SAFE, result_);
 }
 
 TEST_F(DownloadProtectionServiceTest, CheckClientDownloadSuccess) {
   FakeURLFetcherFactory factory;
   // Empty response means SAFE.
   factory.SetFakeResponse(
       DownloadProtectionService::kDownloadRequestUrl, "", true);
 
   EXPECT_CALL(*sb_service_, MatchDownloadWhitelistUrl(_))
       .WillRepeatedly(Return(false));
 
   DownloadProtectionService::DownloadInfo info;
+  info.local_file = FilePath(FILE_PATH_LITERAL("a.exe"));
   info.download_url_chain.push_back(GURL("http://www.evil.com/a.exe"));
   info.referrer_url = GURL("http://www.google.com/");
-  EXPECT_FALSE(download_service_->CheckClientDownload(
+  download_service_->CheckClientDownload(
       info,
       base::Bind(&DownloadProtectionServiceTest::CheckDoneCallback,
-                 base::Unretained(this))));
+                 base::Unretained(this)));
   msg_loop_.Run();
   EXPECT_EQ(DownloadProtectionService::SAFE, result_);
 
   // Invalid response should be safe too.
   factory.SetFakeResponse(
       DownloadProtectionService::kDownloadRequestUrl, "bla", true);
 
-  EXPECT_FALSE(download_service_->CheckClientDownload(
+  download_service_->CheckClientDownload(
       info,
       base::Bind(&DownloadProtectionServiceTest::CheckDoneCallback,
-                 base::Unretained(this))));
+                 base::Unretained(this)));
   msg_loop_.Run();
   EXPECT_EQ(DownloadProtectionService::SAFE, result_);
 }
 
 TEST_F(DownloadProtectionServiceTest, CheckClientDownloadValidateRequest) {
   TestURLFetcherFactory factory;
 
   DownloadProtectionService::DownloadInfo info;
+  info.local_file = FilePath(FILE_PATH_LITERAL("bla.exe"));
   info.download_url_chain.push_back(GURL("http://www.google.com/"));
   info.download_url_chain.push_back(GURL("http://www.google.com/bla.exe"));
   info.referrer_url = GURL("http://www.google.com/");
   info.sha256_hash = "hash";
   info.total_bytes = 100;
   info.user_initiated = false;
 
   EXPECT_CALL(*sb_service_, MatchDownloadWhitelistUrl(_))
       .WillRepeatedly(Return(false));
-  EXPECT_FALSE(download_service_->CheckClientDownload(
+  download_service_->CheckClientDownload(
       info,
       base::Bind(&DownloadProtectionServiceTest::CheckDoneCallback,
-                 base::Unretained(this))));
-  msg_loop_.RunAllPending();  // Wait until StartCheckClientDownload is called.
+                 base::Unretained(this)));
+  // Run the message loop(s) until SendRequest is called.
+  FlushThreadMessageLoops();
 
-  ASSERT_TRUE(factory.GetFetcherByID(0));
+  TestURLFetcher* fetcher = factory.GetFetcherByID(0);
+  ASSERT_TRUE(fetcher);
   ClientDownloadRequest request;
-  EXPECT_TRUE(request.ParseFromString(
-      factory.GetFetcherByID(0)->upload_data()));
+  EXPECT_TRUE(request.ParseFromString(fetcher->upload_data()));
   EXPECT_EQ("http://www.google.com/bla.exe", request.url());
   EXPECT_EQ(info.sha256_hash, request.digests().sha256());
   EXPECT_EQ(info.total_bytes, request.length());
   EXPECT_EQ(info.user_initiated, request.user_initiated());
   EXPECT_EQ(2, request.resources_size());
   EXPECT_TRUE(RequestContainsResource(request,
                                       ClientDownloadRequest::DOWNLOAD_REDIRECT,
                                       "http://www.google.com/", ""));
   EXPECT_TRUE(RequestContainsResource(request,
                                       ClientDownloadRequest::DOWNLOAD_URL,
                                       "http://www.google.com/bla.exe",
                                       info.referrer_url.spec()));
+
+  // Simulate the request finishing.
+  MessageLoop::current()->PostTask(
+      FROM_HERE,
+      base::Bind(&DownloadProtectionServiceTest::SendURLFetchComplete,
+                 base::Unretained(this), fetcher));
+  msg_loop_.Run();
 }
 }  // namespace safe_browsing