chrome/browser/net/net_log_temp_file_unittest.cc

   1 // Copyright (c) 2013 The Chromium Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style license that can be
   3 // found in the LICENSE file.
   4
   5 #include "chrome/browser/net/net_log_temp_file.h"
   6
   7 #include "base/basictypes.h"
   8 #include "base/file_util.h"
   9 #include "base/files/file_path.h"
  10 #include "base/message_loop/message_loop.h"
  11 #include "base/values.h"
  12 #include "build/build_config.h"
  13 #include "chrome/browser/net/chrome_net_log.h"
  14 #include "content/public/test/test_browser_thread.h"
  15 #include "testing/gtest/include/gtest/gtest.h"
  16
  17 using content::BrowserThread;
  18
  19 class TestNetLogTempFile : public NetLogTempFile {
  20  public:
  21   explicit TestNetLogTempFile(ChromeNetLog* chrome_net_log)
  22       : NetLogTempFile(chrome_net_log),
  23         lie_about_net_export_log_directory_(false),
  24         lie_about_file_existence_(false) {
  25   }
  26
  27   // NetLogTempFile implementation:
  28   virtual bool GetNetExportLogDirectory(base::FilePath* path) OVERRIDE {
  29     if (lie_about_net_export_log_directory_)
  30       return false;
  31     return NetLogTempFile::GetNetExportLogDirectory(path);
  32   }
  33
  34   virtual bool NetExportLogExists() OVERRIDE {
  35     if (lie_about_file_existence_)
  36       return false;
  37     return NetLogTempFile::NetExportLogExists();
  38   }
  39
  40   void set_lie_about_net_export_log_directory(
  41       bool lie_about_net_export_log_directory) {
  42     lie_about_net_export_log_directory_ = lie_about_net_export_log_directory;
  43   }
  44
  45   void set_lie_about_file_existence(bool lie_about_file_existence) {
  46     lie_about_file_existence_ = lie_about_file_existence;
  47   }
  48
  49  private:
  50   bool lie_about_net_export_log_directory_;
  51   bool lie_about_file_existence_;
  52 };
  53
  54 class NetLogTempFileTest : public ::testing::Test {
  55  public:
  56   NetLogTempFileTest()
  57       : net_log_(new ChromeNetLog),
  58         net_log_temp_file_(new TestNetLogTempFile(net_log_.get())),
  59         file_user_blocking_thread_(BrowserThread::FILE_USER_BLOCKING,
  60                                    &message_loop_) {
  61   }
  62
  63   // ::testing::Test implementation:
  64   virtual void SetUp() OVERRIDE {
  65     // Get a temporary file name for unit tests.
  66     base::FilePath net_log_dir;
  67     ASSERT_TRUE(net_log_temp_file_->GetNetExportLogDirectory(&net_log_dir));
  68     ASSERT_TRUE(base::CreateTemporaryFileInDir(net_log_dir, &net_export_log_));
  69
  70     net_log_temp_file_->log_filename_ = net_export_log_.BaseName().value();
  71
  72     // CreateTemporaryFileInDir may return a legacy 8.3 file name on windows.
  73     // Need to use the original directory name for string comparisons.
  74     ASSERT_TRUE(net_log_temp_file_->GetNetExportLog());
  75     net_export_log_ = net_log_temp_file_->log_path_;
  76     ASSERT_FALSE(net_export_log_.empty());
  77   }
  78
  79   virtual void TearDown() OVERRIDE {
  80     // Delete the temporary file we have created.
  81     ASSERT_TRUE(base::DeleteFile(net_export_log_, false));
  82   }
  83
  84   std::string GetStateString() const {
  85     scoped_ptr<base::DictionaryValue> dict(net_log_temp_file_->GetState());
  86     std::string state;
  87     EXPECT_TRUE(dict->GetString("state", &state));
  88     return state;
  89   }
  90
  91   std::string GetLogTypeString() const {
  92     scoped_ptr<base::DictionaryValue> dict(net_log_temp_file_->GetState());
  93     std::string log_type;
  94     EXPECT_TRUE(dict->GetString("logType", &log_type));
  95     return log_type;
  96   }
  97
  98   // Make sure the export file has been created and is non-empty, as net
  99   // constants will always be written to it on creation.
 100   void VerifyNetExportLog() {
 101     EXPECT_EQ(net_export_log_, net_log_temp_file_->log_path_);
 102     EXPECT_TRUE(base::PathExists(net_export_log_));
 103
 104     int64 file_size;
 105     // base::GetFileSize returns proper file size on open handles.
 106     EXPECT_TRUE(base::GetFileSize(net_export_log_, &file_size));
 107     EXPECT_GT(file_size, 0);
 108   }
 109
 110   // Verify state and GetFilePath return correct values if EnsureInit() fails.
 111   void VerifyFilePathAndStateAfterEnsureInitFailure() {
 112     EXPECT_EQ("UNINITIALIZED", GetStateString());
 113     EXPECT_EQ(NetLogTempFile::STATE_UNINITIALIZED,
 114               net_log_temp_file_->state());
 115
 116     base::FilePath net_export_file_path;
 117     EXPECT_FALSE(net_log_temp_file_->GetFilePath(&net_export_file_path));
 118   }
 119
 120   // When we lie in NetExportLogExists, make sure state and GetFilePath return
 121   // correct values.
 122   void VerifyFilePathAndStateAfterEnsureInit() {
 123     EXPECT_EQ("NOT_LOGGING", GetStateString());
 124     EXPECT_EQ(NetLogTempFile::STATE_NOT_LOGGING, net_log_temp_file_->state());
 125     EXPECT_EQ("NONE", GetLogTypeString());
 126     EXPECT_EQ(NetLogTempFile::LOG_TYPE_NONE, net_log_temp_file_->log_type());
 127
 128     base::FilePath net_export_file_path;
 129     EXPECT_FALSE(net_log_temp_file_->GetFilePath(&net_export_file_path));
 130     EXPECT_FALSE(net_log_temp_file_->NetExportLogExists());
 131   }
 132
 133   // Make sure the export file has been successfully initialized.
 134   void VerifyFileAndStateAfterDoStart() {
 135     EXPECT_EQ("LOGGING", GetStateString());
 136     EXPECT_EQ(NetLogTempFile::STATE_LOGGING, net_log_temp_file_->state());
 137     EXPECT_EQ("NORMAL", GetLogTypeString());
 138     EXPECT_EQ(NetLogTempFile::LOG_TYPE_NORMAL, net_log_temp_file_->log_type());
 139
 140     // Check GetFilePath returns false, if we are still writing to file.
 141     base::FilePath net_export_file_path;
 142     EXPECT_FALSE(net_log_temp_file_->GetFilePath(&net_export_file_path));
 143
 144     VerifyNetExportLog();
 145     EXPECT_EQ(net::NetLog::LOG_ALL_BUT_BYTES, net_log_->GetLogLevel());
 146   }
 147
 148   // Make sure the export file has been successfully initialized.
 149   void VerifyFileAndStateAfterDoStartStripPrivateData() {
 150     EXPECT_EQ("LOGGING", GetStateString());
 151     EXPECT_EQ(NetLogTempFile::STATE_LOGGING, net_log_temp_file_->state());
 152     EXPECT_EQ("STRIP_PRIVATE_DATA", GetLogTypeString());
 153     EXPECT_EQ(NetLogTempFile::LOG_TYPE_STRIP_PRIVATE_DATA,
 154               net_log_temp_file_->log_type());
 155
 156     // Check GetFilePath returns false, if we are still writing to file.
 157     base::FilePath net_export_file_path;
 158     EXPECT_FALSE(net_log_temp_file_->GetFilePath(&net_export_file_path));
 159
 160     VerifyNetExportLog();
 161     EXPECT_EQ(net::NetLog::LOG_STRIP_PRIVATE_DATA, net_log_->GetLogLevel());
 162   }
 163
 164   // Make sure the export file has been successfully initialized.
 165   void VerifyFileAndStateAfterDoStop() {
 166     EXPECT_EQ("NOT_LOGGING", GetStateString());
 167     EXPECT_EQ(NetLogTempFile::STATE_NOT_LOGGING, net_log_temp_file_->state());
 168     EXPECT_EQ("NORMAL", GetLogTypeString());
 169     EXPECT_EQ(NetLogTempFile::LOG_TYPE_NORMAL, net_log_temp_file_->log_type());
 170
 171     base::FilePath net_export_file_path;
 172     EXPECT_TRUE(net_log_temp_file_->GetFilePath(&net_export_file_path));
 173     EXPECT_TRUE(base::PathExists(net_export_file_path));
 174     EXPECT_EQ(net_export_log_, net_export_file_path);
 175
 176     VerifyNetExportLog();
 177   }
 178
 179   scoped_ptr<ChromeNetLog> net_log_;
 180   // |net_log_temp_file_| is initialized after |net_log_| so that it can stop
 181   // obvserving on destruction.
 182   scoped_ptr<TestNetLogTempFile> net_log_temp_file_;
 183   base::FilePath net_export_log_;
 184
 185  private:
 186   base::MessageLoop message_loop_;
 187   content::TestBrowserThread file_user_blocking_thread_;
 188 };
 189
 190 TEST_F(NetLogTempFileTest, EnsureInitFailure) {
 191   net_log_temp_file_->set_lie_about_net_export_log_directory(true);
 192
 193   EXPECT_FALSE(net_log_temp_file_->EnsureInit());
 194   VerifyFilePathAndStateAfterEnsureInitFailure();
 195
 196   net_log_temp_file_->ProcessCommand(NetLogTempFile::DO_START);
 197   VerifyFilePathAndStateAfterEnsureInitFailure();
 198 }
 199
 200 TEST_F(NetLogTempFileTest, EnsureInitAllowStart) {
 201   net_log_temp_file_->set_lie_about_file_existence(true);
 202
 203   EXPECT_TRUE(net_log_temp_file_->EnsureInit());
 204   VerifyFilePathAndStateAfterEnsureInit();
 205
 206   // Calling EnsureInit() second time should be a no-op.
 207   EXPECT_TRUE(net_log_temp_file_->EnsureInit());
 208   VerifyFilePathAndStateAfterEnsureInit();
 209 }
 210
 211 TEST_F(NetLogTempFileTest, EnsureInitAllowStartOrSend) {
 212   EXPECT_TRUE(net_log_temp_file_->EnsureInit());
 213
 214   EXPECT_EQ("NOT_LOGGING", GetStateString());
 215   EXPECT_EQ(NetLogTempFile::STATE_NOT_LOGGING, net_log_temp_file_->state());
 216   EXPECT_EQ("UNKNOWN", GetLogTypeString());
 217   EXPECT_EQ(NetLogTempFile::LOG_TYPE_UNKNOWN, net_log_temp_file_->log_type());
 218   EXPECT_EQ(net_export_log_, net_log_temp_file_->log_path_);
 219   EXPECT_TRUE(base::PathExists(net_export_log_));
 220
 221   base::FilePath net_export_file_path;
 222   EXPECT_TRUE(net_log_temp_file_->GetFilePath(&net_export_file_path));
 223   EXPECT_TRUE(base::PathExists(net_export_file_path));
 224   EXPECT_EQ(net_export_log_, net_export_file_path);
 225
 226   // GetFilePath should return false if NetExportLogExists() fails.
 227   net_log_temp_file_->set_lie_about_file_existence(true);
 228   EXPECT_FALSE(net_log_temp_file_->GetFilePath(&net_export_file_path));
 229 }
 230
 231 TEST_F(NetLogTempFileTest, ProcessCommandDoStartAndStop) {
 232   net_log_temp_file_->ProcessCommand(NetLogTempFile::DO_START);
 233   VerifyFileAndStateAfterDoStart();
 234
 235   // Calling DO_START second time should be a no-op.
 236   net_log_temp_file_->ProcessCommand(NetLogTempFile::DO_START);
 237   VerifyFileAndStateAfterDoStart();
 238
 239   net_log_temp_file_->ProcessCommand(NetLogTempFile::DO_STOP);
 240   VerifyFileAndStateAfterDoStop();
 241
 242   // Calling DO_STOP second time should be a no-op.
 243   net_log_temp_file_->ProcessCommand(NetLogTempFile::DO_STOP);
 244   VerifyFileAndStateAfterDoStop();
 245 }
 246
 247 TEST_F(NetLogTempFileTest, DoStartClearsFile) {
 248   // Verify file sizes after two consecutives start/stop are the same (even if
 249   // we add some junk data in between).
 250   net_log_temp_file_->ProcessCommand(NetLogTempFile::DO_START);
 251   VerifyFileAndStateAfterDoStart();
 252
 253   int64 start_file_size;
 254   EXPECT_TRUE(base::GetFileSize(net_export_log_, &start_file_size));
 255
 256   net_log_temp_file_->ProcessCommand(NetLogTempFile::DO_STOP);
 257   VerifyFileAndStateAfterDoStop();
 258
 259   int64 stop_file_size;
 260   EXPECT_TRUE(base::GetFileSize(net_export_log_, &stop_file_size));
 261   EXPECT_GE(stop_file_size, start_file_size);
 262
 263   // Add some junk at the end of the file.
 264   std::string junk_data("Hello");
 265   EXPECT_GT(base::AppendToFile(
 266       net_export_log_, junk_data.c_str(), junk_data.size()), 0);
 267
 268   int64 junk_file_size;
 269   EXPECT_TRUE(base::GetFileSize(net_export_log_, &junk_file_size));
 270   EXPECT_GT(junk_file_size, stop_file_size);
 271
 272   // Execute DO_START/DO_STOP commands and make sure the file is back to the
 273   // size before addition of junk data.
 274   net_log_temp_file_->ProcessCommand(NetLogTempFile::DO_START);
 275   VerifyFileAndStateAfterDoStart();
 276
 277   int64 new_start_file_size;
 278   EXPECT_TRUE(base::GetFileSize(net_export_log_, &new_start_file_size));
 279   EXPECT_EQ(new_start_file_size, start_file_size);
 280
 281   net_log_temp_file_->ProcessCommand(NetLogTempFile::DO_STOP);
 282   VerifyFileAndStateAfterDoStop();
 283
 284   int64 new_stop_file_size;
 285   EXPECT_TRUE(base::GetFileSize(net_export_log_, &new_stop_file_size));
 286   EXPECT_EQ(new_stop_file_size, stop_file_size);
 287 }
 288
 289 TEST_F(NetLogTempFileTest, CheckAddEvent) {
 290   // Add an event to |net_log_| and then test to make sure that, after we stop
 291   // logging, the file is larger than the file created without that event.
 292   net_log_temp_file_->ProcessCommand(NetLogTempFile::DO_START);
 293   VerifyFileAndStateAfterDoStart();
 294
 295   // Get file size without the event.
 296   net_log_temp_file_->ProcessCommand(NetLogTempFile::DO_STOP);
 297   VerifyFileAndStateAfterDoStop();
 298
 299   int64 stop_file_size;
 300   EXPECT_TRUE(base::GetFileSize(net_export_log_, &stop_file_size));
 301
 302   // Perform DO_START and add an Event and then DO_STOP and then compare
 303   // file sizes.
 304   net_log_temp_file_->ProcessCommand(NetLogTempFile::DO_START);
 305   VerifyFileAndStateAfterDoStart();
 306
 307   // Log an event.
 308   net_log_->AddGlobalEntry(net::NetLog::TYPE_CANCELLED);
 309
 310   net_log_temp_file_->ProcessCommand(NetLogTempFile::DO_STOP);
 311   VerifyFileAndStateAfterDoStop();
 312
 313   int64 new_stop_file_size;
 314   EXPECT_TRUE(base::GetFileSize(net_export_log_, &new_stop_file_size));
 315   EXPECT_GE(new_stop_file_size, stop_file_size);
 316 }