src/chrome/installer/util/installer_state_unittest.cc

   1 // Copyright (c) 2012 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 <windows.h>
   6
   7 #include <fstream>
   8
   9 #include "base/base_paths.h"
  10 #include "base/command_line.h"
  11 #include "base/files/file_enumerator.h"
  12 #include "base/files/file_path.h"
  13 #include "base/files/file_util.h"
  14 #include "base/files/scoped_temp_dir.h"
  15 #include "base/path_service.h"
  16 #include "base/strings/string_util.h"
  17 #include "base/strings/utf_string_conversions.h"
  18 #include "base/test/scoped_path_override.h"
  19 #include "base/test/test_reg_util_win.h"
  20 #include "base/version.h"
  21 #include "base/win/registry.h"
  22 #include "base/win/scoped_handle.h"
  23 #include "chrome/common/chrome_constants.h"
  24 #include "chrome/installer/test/alternate_version_generator.h"
  25 #include "chrome/installer/util/fake_installation_state.h"
  26 #include "chrome/installer/util/fake_product_state.h"
  27 #include "chrome/installer/util/google_update_constants.h"
  28 #include "chrome/installer/util/helper.h"
  29 #include "chrome/installer/util/installation_state.h"
  30 #include "chrome/installer/util/installer_state.h"
  31 #include "chrome/installer/util/master_preferences.h"
  32 #include "chrome/installer/util/product_unittest.h"
  33 #include "chrome/installer/util/util_constants.h"
  34 #include "chrome/installer/util/work_item.h"
  35 #include "testing/gtest/include/gtest/gtest.h"
  36
  37 #include "installer_util_strings.h"  // NOLINT
  38
  39 using base::win::RegKey;
  40 using installer::InstallationState;
  41 using installer::InstallerState;
  42 using installer::MasterPreferences;
  43 using registry_util::RegistryOverrideManager;
  44
  45 class InstallerStateTest : public TestWithTempDirAndDeleteTempOverrideKeys {
  46  protected:
  47 };
  48
  49 // An installer state on which we can access otherwise protected members.
  50 class MockInstallerState : public InstallerState {
  51  public:
  52   MockInstallerState() : InstallerState() { }
  53   void set_target_path(const base::FilePath& target_path) {
  54     target_path_ = target_path;
  55   }
  56   static bool IsFileInUse(const base::FilePath& file) {
  57     return InstallerState::IsFileInUse(file);
  58   }
  59   const Version& critical_update_version() const {
  60     return critical_update_version_;
  61   }
  62   void GetExistingExeVersions(std::set<std::string>* existing_version_strings) {
  63     return InstallerState::GetExistingExeVersions(existing_version_strings);
  64   }
  65 };
  66
  67 // Simple function to dump some text into a new file.
  68 void CreateTextFile(const std::wstring& filename,
  69                     const std::wstring& contents) {
  70   std::ofstream file;
  71   file.open(filename.c_str());
  72   ASSERT_TRUE(file.is_open());
  73   file << contents;
  74   file.close();
  75 }
  76
  77 void BuildSingleChromeState(const base::FilePath& target_dir,
  78                             MockInstallerState* installer_state) {
  79   CommandLine cmd_line = CommandLine::FromString(L"setup.exe");
  80   MasterPreferences prefs(cmd_line);
  81   InstallationState machine_state;
  82   machine_state.Initialize();
  83   installer_state->Initialize(cmd_line, prefs, machine_state);
  84   installer_state->set_target_path(target_dir);
  85   EXPECT_TRUE(installer_state->FindProduct(BrowserDistribution::CHROME_BROWSER)
  86       != NULL);
  87 }
  88
  89 wchar_t text_content_1[] = L"delete me";
  90 wchar_t text_content_2[] = L"delete me as well";
  91
  92 // Delete version directories. Everything lower than the given version
  93 // should be deleted.
  94 TEST_F(InstallerStateTest, Delete) {
  95   // TODO(grt): move common stuff into the test fixture.
  96   // Create a Chrome dir
  97   base::FilePath chrome_dir(test_dir_.path());
  98   chrome_dir = chrome_dir.AppendASCII("chrome");
  99   base::CreateDirectory(chrome_dir);
 100   ASSERT_TRUE(base::PathExists(chrome_dir));
 101
 102   base::FilePath chrome_dir_1(chrome_dir);
 103   chrome_dir_1 = chrome_dir_1.AppendASCII("1.0.1.0");
 104   base::CreateDirectory(chrome_dir_1);
 105   ASSERT_TRUE(base::PathExists(chrome_dir_1));
 106
 107   base::FilePath chrome_dir_2(chrome_dir);
 108   chrome_dir_2 = chrome_dir_2.AppendASCII("1.0.2.0");
 109   base::CreateDirectory(chrome_dir_2);
 110   ASSERT_TRUE(base::PathExists(chrome_dir_2));
 111
 112   base::FilePath chrome_dir_3(chrome_dir);
 113   chrome_dir_3 = chrome_dir_3.AppendASCII("1.0.3.0");
 114   base::CreateDirectory(chrome_dir_3);
 115   ASSERT_TRUE(base::PathExists(chrome_dir_3));
 116
 117   base::FilePath chrome_dir_4(chrome_dir);
 118   chrome_dir_4 = chrome_dir_4.AppendASCII("1.0.4.0");
 119   base::CreateDirectory(chrome_dir_4);
 120   ASSERT_TRUE(base::PathExists(chrome_dir_4));
 121
 122   base::FilePath chrome_dll_1(chrome_dir_1);
 123   chrome_dll_1 = chrome_dll_1.AppendASCII("chrome.dll");
 124   CreateTextFile(chrome_dll_1.value(), text_content_1);
 125   ASSERT_TRUE(base::PathExists(chrome_dll_1));
 126
 127   base::FilePath chrome_dll_2(chrome_dir_2);
 128   chrome_dll_2 = chrome_dll_2.AppendASCII("chrome.dll");
 129   CreateTextFile(chrome_dll_2.value(), text_content_1);
 130   ASSERT_TRUE(base::PathExists(chrome_dll_2));
 131
 132   base::FilePath chrome_dll_3(chrome_dir_3);
 133   chrome_dll_3 = chrome_dll_3.AppendASCII("chrome.dll");
 134   CreateTextFile(chrome_dll_3.value(), text_content_1);
 135   ASSERT_TRUE(base::PathExists(chrome_dll_3));
 136
 137   base::FilePath chrome_dll_4(chrome_dir_4);
 138   chrome_dll_4 = chrome_dll_4.AppendASCII("chrome.dll");
 139   CreateTextFile(chrome_dll_4.value(), text_content_1);
 140   ASSERT_TRUE(base::PathExists(chrome_dll_4));
 141
 142   MockInstallerState installer_state;
 143   BuildSingleChromeState(chrome_dir, &installer_state);
 144   Version latest_version("1.0.4.0");
 145   {
 146     base::ScopedTempDir temp_dir;
 147     ASSERT_TRUE(temp_dir.CreateUniqueTempDir());
 148     installer_state.RemoveOldVersionDirectories(latest_version, NULL,
 149                                                 temp_dir.path());
 150   }
 151
 152   // old versions should be gone
 153   EXPECT_FALSE(base::PathExists(chrome_dir_1));
 154   EXPECT_FALSE(base::PathExists(chrome_dir_2));
 155   EXPECT_FALSE(base::PathExists(chrome_dir_3));
 156   // the latest version should stay
 157   EXPECT_TRUE(base::PathExists(chrome_dll_4));
 158 }
 159
 160 // Delete older version directories, keeping the one in used intact.
 161 TEST_F(InstallerStateTest, DeleteInUsed) {
 162   // Create a Chrome dir
 163   base::FilePath chrome_dir(test_dir_.path());
 164   chrome_dir = chrome_dir.AppendASCII("chrome");
 165   base::CreateDirectory(chrome_dir);
 166   ASSERT_TRUE(base::PathExists(chrome_dir));
 167
 168   base::FilePath chrome_dir_1(chrome_dir);
 169   chrome_dir_1 = chrome_dir_1.AppendASCII("1.0.1.0");
 170   base::CreateDirectory(chrome_dir_1);
 171   ASSERT_TRUE(base::PathExists(chrome_dir_1));
 172
 173   base::FilePath chrome_dir_2(chrome_dir);
 174   chrome_dir_2 = chrome_dir_2.AppendASCII("1.0.2.0");
 175   base::CreateDirectory(chrome_dir_2);
 176   ASSERT_TRUE(base::PathExists(chrome_dir_2));
 177
 178   base::FilePath chrome_dir_3(chrome_dir);
 179   chrome_dir_3 = chrome_dir_3.AppendASCII("1.0.3.0");
 180   base::CreateDirectory(chrome_dir_3);
 181   ASSERT_TRUE(base::PathExists(chrome_dir_3));
 182
 183   base::FilePath chrome_dir_4(chrome_dir);
 184   chrome_dir_4 = chrome_dir_4.AppendASCII("1.0.4.0");
 185   base::CreateDirectory(chrome_dir_4);
 186   ASSERT_TRUE(base::PathExists(chrome_dir_4));
 187
 188   base::FilePath chrome_dll_1(chrome_dir_1);
 189   chrome_dll_1 = chrome_dll_1.AppendASCII("chrome.dll");
 190   CreateTextFile(chrome_dll_1.value(), text_content_1);
 191   ASSERT_TRUE(base::PathExists(chrome_dll_1));
 192
 193   base::FilePath chrome_dll_2(chrome_dir_2);
 194   chrome_dll_2 = chrome_dll_2.AppendASCII("chrome.dll");
 195   CreateTextFile(chrome_dll_2.value(), text_content_1);
 196   ASSERT_TRUE(base::PathExists(chrome_dll_2));
 197
 198   // Open the file to make it in use.
 199   std::ofstream file;
 200   file.open(chrome_dll_2.value().c_str());
 201
 202   base::FilePath chrome_othera_2(chrome_dir_2);
 203   chrome_othera_2 = chrome_othera_2.AppendASCII("othera.dll");
 204   CreateTextFile(chrome_othera_2.value(), text_content_2);
 205   ASSERT_TRUE(base::PathExists(chrome_othera_2));
 206
 207   base::FilePath chrome_otherb_2(chrome_dir_2);
 208   chrome_otherb_2 = chrome_otherb_2.AppendASCII("otherb.dll");
 209   CreateTextFile(chrome_otherb_2.value(), text_content_2);
 210   ASSERT_TRUE(base::PathExists(chrome_otherb_2));
 211
 212   base::FilePath chrome_dll_3(chrome_dir_3);
 213   chrome_dll_3 = chrome_dll_3.AppendASCII("chrome.dll");
 214   CreateTextFile(chrome_dll_3.value(), text_content_1);
 215   ASSERT_TRUE(base::PathExists(chrome_dll_3));
 216
 217   base::FilePath chrome_dll_4(chrome_dir_4);
 218   chrome_dll_4 = chrome_dll_4.AppendASCII("chrome.dll");
 219   CreateTextFile(chrome_dll_4.value(), text_content_1);
 220   ASSERT_TRUE(base::PathExists(chrome_dll_4));
 221
 222   MockInstallerState installer_state;
 223   BuildSingleChromeState(chrome_dir, &installer_state);
 224   Version latest_version("1.0.4.0");
 225   Version existing_version("1.0.1.0");
 226   {
 227     base::ScopedTempDir temp_dir;
 228     ASSERT_TRUE(temp_dir.CreateUniqueTempDir());
 229     installer_state.RemoveOldVersionDirectories(latest_version,
 230                                                 &existing_version,
 231                                                 temp_dir.path());
 232   }
 233
 234   // the version defined as the existing version should stay
 235   EXPECT_TRUE(base::PathExists(chrome_dir_1));
 236   // old versions not in used should be gone
 237   EXPECT_FALSE(base::PathExists(chrome_dir_3));
 238   // every thing under in used version should stay
 239   EXPECT_TRUE(base::PathExists(chrome_dir_2));
 240   EXPECT_TRUE(base::PathExists(chrome_dll_2));
 241   EXPECT_TRUE(base::PathExists(chrome_othera_2));
 242   EXPECT_TRUE(base::PathExists(chrome_otherb_2));
 243   // the latest version should stay
 244   EXPECT_TRUE(base::PathExists(chrome_dll_4));
 245 }
 246
 247 // Tests a few basic things of the Package class.  Makes sure that the path
 248 // operations are correct
 249 TEST_F(InstallerStateTest, Basic) {
 250   const bool multi_install = false;
 251   const bool system_level = true;
 252   CommandLine cmd_line = CommandLine::FromString(
 253       std::wstring(L"setup.exe") +
 254       (multi_install ? L" --multi-install --chrome" : L"") +
 255       (system_level ? L" --system-level" : L""));
 256   MasterPreferences prefs(cmd_line);
 257   InstallationState machine_state;
 258   machine_state.Initialize();
 259   MockInstallerState installer_state;
 260   installer_state.Initialize(cmd_line, prefs, machine_state);
 261   installer_state.set_target_path(test_dir_.path());
 262   EXPECT_EQ(test_dir_.path().value(), installer_state.target_path().value());
 263   EXPECT_EQ(1U, installer_state.products().size());
 264
 265   const char kOldVersion[] = "1.2.3.4";
 266   const char kNewVersion[] = "2.3.4.5";
 267
 268   Version new_version(kNewVersion);
 269   Version old_version(kOldVersion);
 270   ASSERT_TRUE(new_version.IsValid());
 271   ASSERT_TRUE(old_version.IsValid());
 272
 273   base::FilePath installer_dir(
 274       installer_state.GetInstallerDirectory(new_version));
 275   EXPECT_FALSE(installer_dir.empty());
 276
 277   base::FilePath new_version_dir(installer_state.target_path().Append(
 278       base::UTF8ToWide(new_version.GetString())));
 279   base::FilePath old_version_dir(installer_state.target_path().Append(
 280       base::UTF8ToWide(old_version.GetString())));
 281
 282   EXPECT_FALSE(base::PathExists(new_version_dir));
 283   EXPECT_FALSE(base::PathExists(old_version_dir));
 284
 285   EXPECT_FALSE(base::PathExists(installer_dir));
 286   base::CreateDirectory(installer_dir);
 287   EXPECT_TRUE(base::PathExists(new_version_dir));
 288
 289   base::CreateDirectory(old_version_dir);
 290   EXPECT_TRUE(base::PathExists(old_version_dir));
 291
 292   // Create a fake chrome.dll key file in the old version directory.  This
 293   // should prevent the old version directory from getting deleted.
 294   base::FilePath old_chrome_dll(old_version_dir.Append(installer::kChromeDll));
 295   EXPECT_FALSE(base::PathExists(old_chrome_dll));
 296
 297   // Hold on to the file exclusively to prevent the directory from
 298   // being deleted.
 299   base::win::ScopedHandle file(
 300     ::CreateFile(old_chrome_dll.value().c_str(), GENERIC_READ,
 301                  0, NULL, OPEN_ALWAYS, 0, NULL));
 302   EXPECT_TRUE(file.IsValid());
 303   EXPECT_TRUE(base::PathExists(old_chrome_dll));
 304
 305   base::ScopedTempDir temp_dir;
 306   ASSERT_TRUE(temp_dir.CreateUniqueTempDir());
 307
 308   // Don't explicitly tell the directory cleanup logic not to delete the
 309   // old version, rely on the key files to keep it around.
 310   installer_state.RemoveOldVersionDirectories(new_version,
 311                                               NULL,
 312                                               temp_dir.path());
 313
 314   // The old directory should still exist.
 315   EXPECT_TRUE(base::PathExists(old_version_dir));
 316   EXPECT_TRUE(base::PathExists(new_version_dir));
 317
 318   // Now close the file handle to make it possible to delete our key file.
 319   file.Close();
 320
 321   installer_state.RemoveOldVersionDirectories(new_version,
 322                                               NULL,
 323                                               temp_dir.path());
 324   // The new directory should still exist.
 325   EXPECT_TRUE(base::PathExists(new_version_dir));
 326
 327   // Now, the old directory and key file should be gone.
 328   EXPECT_FALSE(base::PathExists(old_chrome_dll));
 329   EXPECT_FALSE(base::PathExists(old_version_dir));
 330 }
 331
 332 TEST_F(InstallerStateTest, WithProduct) {
 333   const bool multi_install = false;
 334   const bool system_level = true;
 335   CommandLine cmd_line = CommandLine::FromString(
 336       std::wstring(L"setup.exe") +
 337       (multi_install ? L" --multi-install --chrome" : L"") +
 338       (system_level ? L" --system-level" : L""));
 339   MasterPreferences prefs(cmd_line);
 340   InstallationState machine_state;
 341   machine_state.Initialize();
 342   MockInstallerState installer_state;
 343   installer_state.Initialize(cmd_line, prefs, machine_state);
 344   installer_state.set_target_path(test_dir_.path());
 345   EXPECT_EQ(1U, installer_state.products().size());
 346   EXPECT_EQ(system_level, installer_state.system_install());
 347
 348   const char kCurrentVersion[] = "1.2.3.4";
 349   Version current_version(kCurrentVersion);
 350
 351   HKEY root = system_level ? HKEY_LOCAL_MACHINE : HKEY_CURRENT_USER;
 352   EXPECT_EQ(root, installer_state.root_key());
 353
 354   {
 355     RegistryOverrideManager override_manager;
 356     override_manager.OverrideRegistry(root);
 357     BrowserDistribution* dist = BrowserDistribution::GetSpecificDistribution(
 358         BrowserDistribution::CHROME_BROWSER);
 359     RegKey chrome_key(root, dist->GetVersionKey().c_str(), KEY_ALL_ACCESS);
 360     EXPECT_TRUE(chrome_key.Valid());
 361     if (chrome_key.Valid()) {
 362       chrome_key.WriteValue(google_update::kRegVersionField,
 363                             base::UTF8ToWide(
 364                                 current_version.GetString()).c_str());
 365       machine_state.Initialize();
 366       // TODO(tommi): Also test for when there exists a new_chrome.exe.
 367       Version found_version(*installer_state.GetCurrentVersion(machine_state));
 368       EXPECT_TRUE(found_version.IsValid());
 369       if (found_version.IsValid())
 370         EXPECT_TRUE(current_version.Equals(found_version));
 371     }
 372   }
 373 }
 374
 375 TEST_F(InstallerStateTest, InstallerResult) {
 376   const bool system_level = true;
 377   bool multi_install = false;
 378   HKEY root = system_level ? HKEY_LOCAL_MACHINE : HKEY_CURRENT_USER;
 379
 380   RegKey key;
 381   std::wstring launch_cmd = L"hey diddle diddle";
 382   std::wstring value;
 383   DWORD dw_value;
 384
 385   // check results for a fresh install of single Chrome
 386   {
 387     RegistryOverrideManager override_manager;
 388     override_manager.OverrideRegistry(root);
 389     CommandLine cmd_line = CommandLine::FromString(L"setup.exe --system-level");
 390     const MasterPreferences prefs(cmd_line);
 391     InstallationState machine_state;
 392     machine_state.Initialize();
 393     InstallerState state;
 394     state.Initialize(cmd_line, prefs, machine_state);
 395     state.WriteInstallerResult(installer::FIRST_INSTALL_SUCCESS,
 396                                IDS_INSTALL_OS_ERROR_BASE, &launch_cmd);
 397     BrowserDistribution* distribution =
 398         BrowserDistribution::GetSpecificDistribution(
 399             BrowserDistribution::CHROME_BROWSER);
 400     EXPECT_EQ(ERROR_SUCCESS,
 401         key.Open(root, distribution->GetStateKey().c_str(), KEY_READ));
 402     EXPECT_EQ(ERROR_SUCCESS,
 403         key.ReadValueDW(installer::kInstallerResult, &dw_value));
 404     EXPECT_EQ(static_cast<DWORD>(0), dw_value);
 405     EXPECT_EQ(ERROR_SUCCESS,
 406         key.ReadValueDW(installer::kInstallerError, &dw_value));
 407     EXPECT_EQ(static_cast<DWORD>(installer::FIRST_INSTALL_SUCCESS), dw_value);
 408     EXPECT_EQ(ERROR_SUCCESS,
 409         key.ReadValue(installer::kInstallerResultUIString, &value));
 410     EXPECT_FALSE(value.empty());
 411     EXPECT_EQ(ERROR_SUCCESS,
 412         key.ReadValue(installer::kInstallerSuccessLaunchCmdLine, &value));
 413     EXPECT_EQ(launch_cmd, value);
 414   }
 415
 416   // check results for a fresh install of multi Chrome
 417   {
 418     RegistryOverrideManager override_manager;
 419     override_manager.OverrideRegistry(root);
 420     CommandLine cmd_line = CommandLine::FromString(
 421         L"setup.exe --system-level --multi-install --chrome");
 422     const MasterPreferences prefs(cmd_line);
 423     InstallationState machine_state;
 424     machine_state.Initialize();
 425     InstallerState state;
 426     state.Initialize(cmd_line, prefs, machine_state);
 427     state.WriteInstallerResult(installer::FIRST_INSTALL_SUCCESS, 0,
 428                                &launch_cmd);
 429     BrowserDistribution* distribution =
 430         BrowserDistribution::GetSpecificDistribution(
 431             BrowserDistribution::CHROME_BROWSER);
 432     BrowserDistribution* binaries =
 433         BrowserDistribution::GetSpecificDistribution(
 434             BrowserDistribution::CHROME_BINARIES);
 435     EXPECT_EQ(ERROR_SUCCESS,
 436         key.Open(root, distribution->GetStateKey().c_str(), KEY_READ));
 437     EXPECT_EQ(ERROR_SUCCESS,
 438         key.ReadValue(installer::kInstallerSuccessLaunchCmdLine, &value));
 439     EXPECT_EQ(launch_cmd, value);
 440     EXPECT_EQ(ERROR_SUCCESS,
 441         key.Open(root, binaries->GetStateKey().c_str(), KEY_READ));
 442     EXPECT_EQ(ERROR_SUCCESS,
 443         key.ReadValue(installer::kInstallerSuccessLaunchCmdLine, &value));
 444     EXPECT_EQ(launch_cmd, value);
 445     key.Close();
 446   }
 447 }
 448
 449 // Test GetCurrentVersion when migrating single Chrome to multi
 450 TEST_F(InstallerStateTest, GetCurrentVersionMigrateChrome) {
 451   using installer::FakeInstallationState;
 452
 453   const bool system_install = false;
 454   FakeInstallationState machine_state;
 455
 456   // Pretend that this version of single-install Chrome is already installed.
 457   machine_state.AddChrome(system_install, false,
 458                           new Version(chrome::kChromeVersion));
 459
 460   // Now we're invoked to install multi Chrome.
 461   CommandLine cmd_line(
 462       CommandLine::FromString(L"setup.exe --multi-install --chrome"));
 463   MasterPreferences prefs(cmd_line);
 464   InstallerState installer_state;
 465   installer_state.Initialize(cmd_line, prefs, machine_state);
 466
 467   // Is the Chrome version picked up?
 468   scoped_ptr<Version> version(installer_state.GetCurrentVersion(machine_state));
 469   EXPECT_TRUE(version.get() != NULL);
 470 }
 471
 472 TEST_F(InstallerStateTest, IsFileInUse) {
 473   base::ScopedTempDir temp_dir;
 474   ASSERT_TRUE(temp_dir.CreateUniqueTempDir());
 475
 476   base::FilePath temp_file;
 477   ASSERT_TRUE(base::CreateTemporaryFileInDir(temp_dir.path(), &temp_file));
 478
 479   EXPECT_FALSE(MockInstallerState::IsFileInUse(temp_file));
 480
 481   {
 482     // Open a handle to the file with the same access mode and sharing options
 483     // as the loader.
 484     base::win::ScopedHandle temp_handle(
 485         CreateFile(temp_file.value().c_str(),
 486                    SYNCHRONIZE | FILE_EXECUTE,
 487                    FILE_SHARE_DELETE | FILE_SHARE_READ,
 488                    NULL, OPEN_EXISTING, 0, 0));
 489     ASSERT_TRUE(temp_handle.IsValid());
 490
 491     // The file should now be in use.
 492     EXPECT_TRUE(MockInstallerState::IsFileInUse(temp_file));
 493   }
 494
 495   // And once the handle is gone, it should no longer be in use.
 496   EXPECT_FALSE(MockInstallerState::IsFileInUse(temp_file));
 497 }
 498
 499 TEST_F(InstallerStateTest, RemoveOldVersionDirs) {
 500   MockInstallerState installer_state;
 501   installer_state.set_target_path(test_dir_.path());
 502   EXPECT_EQ(test_dir_.path().value(), installer_state.target_path().value());
 503
 504   const char kOldVersion[] = "2.0.0.0";
 505   const char kNewVersion[] = "3.0.0.0";
 506   const char kOldChromeExeVersion[] = "2.1.0.0";
 507   const char kChromeExeVersion[] = "2.1.1.1";
 508   const char kNewChromeExeVersion[] = "3.0.0.0";
 509
 510   Version new_version(kNewVersion);
 511   Version old_version(kOldVersion);
 512   Version old_chrome_exe_version(kOldChromeExeVersion);
 513   Version chrome_exe_version(kChromeExeVersion);
 514   Version new_chrome_exe_version(kNewChromeExeVersion);
 515
 516   ASSERT_TRUE(new_version.IsValid());
 517   ASSERT_TRUE(old_version.IsValid());
 518   ASSERT_TRUE(old_chrome_exe_version.IsValid());
 519   ASSERT_TRUE(chrome_exe_version.IsValid());
 520   ASSERT_TRUE(new_chrome_exe_version.IsValid());
 521
 522   // Set up a bunch of version dir paths.
 523   base::FilePath version_dirs[] = {
 524     installer_state.target_path().Append(L"1.2.3.4"),
 525     installer_state.target_path().Append(L"1.2.3.5"),
 526     installer_state.target_path().Append(L"1.2.3.6"),
 527     installer_state.target_path().Append(base::ASCIIToWide(kOldVersion)),
 528     installer_state.target_path().Append(
 529         base::ASCIIToWide(kOldChromeExeVersion)),
 530     installer_state.target_path().Append(L"2.1.1.0"),
 531     installer_state.target_path().Append(base::ASCIIToWide(kChromeExeVersion)),
 532     installer_state.target_path().Append(base::ASCIIToWide(kNewVersion)),
 533     installer_state.target_path().Append(L"3.9.1.1"),
 534   };
 535
 536   // Create the version directories.
 537   for (int i = 0; i < arraysize(version_dirs); i++) {
 538     base::CreateDirectory(version_dirs[i]);
 539     EXPECT_TRUE(base::PathExists(version_dirs[i]));
 540   }
 541
 542   // Create exes with the appropriate version resource.
 543   // Use the current test exe as a baseline.
 544   base::FilePath exe_path;
 545   ASSERT_TRUE(PathService::Get(base::FILE_EXE, &exe_path));
 546
 547   struct target_info {
 548     base::FilePath target_file;
 549     const Version& target_version;
 550   } targets[] = {
 551     { installer_state.target_path().Append(installer::kChromeOldExe),
 552       old_chrome_exe_version },
 553     { installer_state.target_path().Append(installer::kChromeExe),
 554       chrome_exe_version },
 555     { installer_state.target_path().Append(installer::kChromeNewExe),
 556       new_chrome_exe_version },
 557   };
 558   for (int i = 0; i < arraysize(targets); ++i) {
 559     ASSERT_TRUE(upgrade_test::GenerateSpecificPEFileVersion(
 560         exe_path, targets[i].target_file, targets[i].target_version));
 561   }
 562
 563   // Call GetExistingExeVersions, validate that picks up the
 564   // exe resources.
 565   std::set<std::string> expected_exe_versions;
 566   expected_exe_versions.insert(kOldChromeExeVersion);
 567   expected_exe_versions.insert(kChromeExeVersion);
 568   expected_exe_versions.insert(kNewChromeExeVersion);
 569
 570   std::set<std::string> actual_exe_versions;
 571   installer_state.GetExistingExeVersions(&actual_exe_versions);
 572   EXPECT_EQ(expected_exe_versions, actual_exe_versions);
 573
 574   // Call RemoveOldVersionDirectories
 575   installer_state.RemoveOldVersionDirectories(new_version,
 576                                               &old_version,
 577                                               installer_state.target_path());
 578
 579   // What we expect to have left.
 580   std::set<std::string> expected_remaining_dirs;
 581   expected_remaining_dirs.insert(kOldVersion);
 582   expected_remaining_dirs.insert(kNewVersion);
 583   expected_remaining_dirs.insert(kOldChromeExeVersion);
 584   expected_remaining_dirs.insert(kChromeExeVersion);
 585   expected_remaining_dirs.insert(kNewChromeExeVersion);
 586
 587   // Enumerate dirs in target_path(), ensure only desired remain.
 588   base::FileEnumerator version_enum(installer_state.target_path(), false,
 589                                     base::FileEnumerator::DIRECTORIES);
 590   for (base::FilePath next_version = version_enum.Next(); !next_version.empty();
 591        next_version = version_enum.Next()) {
 592     base::FilePath dir_name(next_version.BaseName());
 593     Version version(base::UTF16ToASCII(dir_name.value()));
 594     if (version.IsValid()) {
 595       EXPECT_TRUE(expected_remaining_dirs.erase(version.GetString()))
 596           << "Unexpected version dir found: " << version.GetString();
 597     }
 598   }
 599
 600   std::set<std::string>::const_iterator iter(
 601       expected_remaining_dirs.begin());
 602   for (; iter != expected_remaining_dirs.end(); ++iter)
 603     ADD_FAILURE() << "Expected to find version dir for " << *iter;
 604 }
 605
 606 TEST_F(InstallerStateTest, InitializeTwice) {
 607   // Override these paths so that they can be found after the registry override
 608   // manager is in place.
 609   base::FilePath temp;
 610   PathService::Get(base::DIR_PROGRAM_FILES, &temp);
 611   base::ScopedPathOverride program_files_override(base::DIR_PROGRAM_FILES,
 612                                                   temp);
 613   PathService::Get(base::DIR_PROGRAM_FILESX86, &temp);
 614   base::ScopedPathOverride program_filesx86_override(base::DIR_PROGRAM_FILESX86,
 615                                                      temp);
 616   PathService::Get(base::DIR_LOCAL_APP_DATA, &temp);
 617   base::ScopedPathOverride local_app_data_override(base::DIR_LOCAL_APP_DATA,
 618                                                    temp);
 619   registry_util::RegistryOverrideManager override_manager;
 620   override_manager.OverrideRegistry(HKEY_CURRENT_USER);
 621   override_manager.OverrideRegistry(HKEY_LOCAL_MACHINE);
 622
 623   InstallationState machine_state;
 624   machine_state.Initialize();
 625
 626   InstallerState installer_state;
 627
 628   // Initialize the instance to install multi Chrome.
 629   {
 630     CommandLine cmd_line(
 631         CommandLine::FromString(L"setup.exe --multi-install --chrome"));
 632     MasterPreferences prefs(cmd_line);
 633     installer_state.Initialize(cmd_line, prefs, machine_state);
 634   }
 635   // Confirm the expected state.
 636   EXPECT_EQ(InstallerState::USER_LEVEL, installer_state.level());
 637   EXPECT_EQ(InstallerState::MULTI_PACKAGE, installer_state.package_type());
 638   EXPECT_EQ(InstallerState::MULTI_INSTALL, installer_state.operation());
 639   EXPECT_TRUE(wcsstr(installer_state.target_path().value().c_str(),
 640                      BrowserDistribution::GetSpecificDistribution(
 641                          BrowserDistribution::CHROME_BINARIES)->
 642                          GetInstallSubDir().c_str()));
 643   EXPECT_FALSE(installer_state.verbose_logging());
 644   EXPECT_EQ(installer_state.state_key(),
 645             BrowserDistribution::GetSpecificDistribution(
 646                 BrowserDistribution::CHROME_BROWSER)->GetStateKey());
 647   EXPECT_EQ(installer_state.state_type(), BrowserDistribution::CHROME_BROWSER);
 648   EXPECT_TRUE(installer_state.multi_package_binaries_distribution());
 649   EXPECT_TRUE(installer_state.FindProduct(BrowserDistribution::CHROME_BROWSER));
 650
 651   // Now initialize it to install system-level single Chrome.
 652   {
 653     CommandLine cmd_line(
 654         CommandLine::FromString(L"setup.exe --system-level --verbose-logging"));
 655     MasterPreferences prefs(cmd_line);
 656     installer_state.Initialize(cmd_line, prefs, machine_state);
 657   }
 658
 659   // Confirm that the old state is gone.
 660   EXPECT_EQ(InstallerState::SYSTEM_LEVEL, installer_state.level());
 661   EXPECT_EQ(InstallerState::SINGLE_PACKAGE, installer_state.package_type());
 662   EXPECT_EQ(InstallerState::SINGLE_INSTALL_OR_UPDATE,
 663             installer_state.operation());
 664   EXPECT_TRUE(wcsstr(installer_state.target_path().value().c_str(),
 665                      BrowserDistribution::GetSpecificDistribution(
 666                          BrowserDistribution::CHROME_BROWSER)->
 667                          GetInstallSubDir().c_str()));
 668   EXPECT_TRUE(installer_state.verbose_logging());
 669   EXPECT_EQ(installer_state.state_key(),
 670             BrowserDistribution::GetSpecificDistribution(
 671                 BrowserDistribution::CHROME_BROWSER)->GetStateKey());
 672   EXPECT_EQ(installer_state.state_type(), BrowserDistribution::CHROME_BROWSER);
 673   EXPECT_TRUE(installer_state.FindProduct(BrowserDistribution::CHROME_BROWSER));
 674 }
 675
 676 // A fixture for testing InstallerState::DetermineCriticalVersion.  Individual
 677 // tests must invoke Initialize() with a critical version.
 678 class InstallerStateCriticalVersionTest : public ::testing::Test {
 679  protected:
 680   InstallerStateCriticalVersionTest() : cmd_line_(CommandLine::NO_PROGRAM) {}
 681
 682   // Creates a set of versions for use by all test runs.
 683   static void SetUpTestCase() {
 684     low_version_    = new Version("15.0.874.106");
 685     opv_version_    = new Version("15.0.874.255");
 686     middle_version_ = new Version("16.0.912.32");
 687     pv_version_     = new Version("16.0.912.255");
 688     high_version_   = new Version("17.0.932.0");
 689   }
 690
 691   // Cleans up versions used by all test runs.
 692   static void TearDownTestCase() {
 693     delete low_version_;
 694     delete opv_version_;
 695     delete middle_version_;
 696     delete pv_version_;
 697     delete high_version_;
 698   }
 699
 700   // Initializes the InstallerState to use for a test run.  The returned
 701   // instance's critical update version is set to |version|.  |version| may be
 702   // NULL, in which case the critical update version is unset.
 703   MockInstallerState& Initialize(const Version* version) {
 704     cmd_line_ = version == NULL ?
 705         CommandLine::FromString(L"setup.exe") :
 706         CommandLine::FromString(
 707             L"setup.exe --critical-update-version=" +
 708             base::ASCIIToWide(version->GetString()));
 709     prefs_.reset(new MasterPreferences(cmd_line_));
 710     machine_state_.Initialize();
 711     installer_state_.Initialize(cmd_line_, *prefs_, machine_state_);
 712     return installer_state_;
 713   }
 714
 715   static Version* low_version_;
 716   static Version* opv_version_;
 717   static Version* middle_version_;
 718   static Version* pv_version_;
 719   static Version* high_version_;
 720
 721   CommandLine cmd_line_;
 722   scoped_ptr<MasterPreferences> prefs_;
 723   InstallationState machine_state_;
 724   MockInstallerState installer_state_;
 725 };
 726
 727 Version* InstallerStateCriticalVersionTest::low_version_ = NULL;
 728 Version* InstallerStateCriticalVersionTest::opv_version_ = NULL;
 729 Version* InstallerStateCriticalVersionTest::middle_version_ = NULL;
 730 Version* InstallerStateCriticalVersionTest::pv_version_ = NULL;
 731 Version* InstallerStateCriticalVersionTest::high_version_ = NULL;
 732
 733 // Test the case where the critical version is less than the currently-running
 734 // Chrome.  The critical version is ignored since it doesn't apply.
 735 TEST_F(InstallerStateCriticalVersionTest, CriticalBeforeOpv) {
 736   MockInstallerState& installer_state(Initialize(low_version_));
 737
 738   EXPECT_TRUE(installer_state.critical_update_version().Equals(*low_version_));
 739   // Unable to determine the installed version, so assume critical update.
 740   EXPECT_TRUE(
 741       installer_state.DetermineCriticalVersion(NULL, *pv_version_).IsValid());
 742   // Installed version is past the critical update.
 743   EXPECT_FALSE(
 744       installer_state.DetermineCriticalVersion(opv_version_, *pv_version_)
 745           .IsValid());
 746   // Installed version is past the critical update.
 747   EXPECT_FALSE(
 748       installer_state.DetermineCriticalVersion(pv_version_, *pv_version_)
 749           .IsValid());
 750 }
 751
 752 // Test the case where the critical version is equal to the currently-running
 753 // Chrome.  The critical version is ignored since it doesn't apply.
 754 TEST_F(InstallerStateCriticalVersionTest, CriticalEqualsOpv) {
 755   MockInstallerState& installer_state(Initialize(opv_version_));
 756
 757   EXPECT_TRUE(installer_state.critical_update_version().Equals(*opv_version_));
 758   // Unable to determine the installed version, so assume critical update.
 759   EXPECT_TRUE(
 760       installer_state.DetermineCriticalVersion(NULL, *pv_version_).IsValid());
 761   // Installed version equals the critical update.
 762   EXPECT_FALSE(
 763       installer_state.DetermineCriticalVersion(opv_version_, *pv_version_)
 764           .IsValid());
 765   // Installed version equals the critical update.
 766   EXPECT_FALSE(
 767       installer_state.DetermineCriticalVersion(pv_version_, *pv_version_)
 768           .IsValid());
 769 }
 770
 771 // Test the case where the critical version is between the currently-running
 772 // Chrome and the to-be-installed Chrome.
 773 TEST_F(InstallerStateCriticalVersionTest, CriticalBetweenOpvAndPv) {
 774   MockInstallerState& installer_state(Initialize(middle_version_));
 775
 776   EXPECT_TRUE(installer_state.critical_update_version().Equals(
 777       *middle_version_));
 778   // Unable to determine the installed version, so assume critical update.
 779   EXPECT_TRUE(
 780       installer_state.DetermineCriticalVersion(NULL, *pv_version_).IsValid());
 781   // Installed version before the critical update.
 782   EXPECT_TRUE(
 783       installer_state.DetermineCriticalVersion(opv_version_, *pv_version_)
 784           .IsValid());
 785   // Installed version is past the critical update.
 786   EXPECT_FALSE(
 787       installer_state.DetermineCriticalVersion(pv_version_, *pv_version_)
 788           .IsValid());
 789 }
 790
 791 // Test the case where the critical version is the same as the to-be-installed
 792 // Chrome.
 793 TEST_F(InstallerStateCriticalVersionTest, CriticalEqualsPv) {
 794   MockInstallerState& installer_state(Initialize(pv_version_));
 795
 796   EXPECT_TRUE(installer_state.critical_update_version().Equals(
 797       *pv_version_));
 798   // Unable to determine the installed version, so assume critical update.
 799   EXPECT_TRUE(
 800       installer_state.DetermineCriticalVersion(NULL, *pv_version_).IsValid());
 801   // Installed version before the critical update.
 802   EXPECT_TRUE(
 803       installer_state.DetermineCriticalVersion(opv_version_, *pv_version_)
 804           .IsValid());
 805   // Installed version equals the critical update.
 806   EXPECT_FALSE(
 807       installer_state.DetermineCriticalVersion(pv_version_, *pv_version_)
 808           .IsValid());
 809 }
 810
 811 // Test the case where the critical version is greater than the to-be-installed
 812 // Chrome.
 813 TEST_F(InstallerStateCriticalVersionTest, CriticalAfterPv) {
 814   MockInstallerState& installer_state(Initialize(high_version_));
 815
 816   EXPECT_TRUE(installer_state.critical_update_version().Equals(
 817       *high_version_));
 818   // Critical update newer than the new version.
 819   EXPECT_FALSE(
 820       installer_state.DetermineCriticalVersion(NULL, *pv_version_).IsValid());
 821   EXPECT_FALSE(
 822       installer_state.DetermineCriticalVersion(opv_version_, *pv_version_)
 823           .IsValid());
 824   EXPECT_FALSE(
 825       installer_state.DetermineCriticalVersion(pv_version_, *pv_version_)
 826           .IsValid());
 827 }