chrome/installer/setup/setup_util_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 "chrome/installer/setup/setup_util_unittest.h"
   6
   7 #include <windows.h>
   8
   9 #include <string>
  10
  11 #include "base/command_line.h"
  12 #include "base/files/file_util.h"
  13 #include "base/files/scoped_temp_dir.h"
  14 #include "base/macros.h"
  15 #include "base/memory/scoped_ptr.h"
  16 #include "base/process/kill.h"
  17 #include "base/process/launch.h"
  18 #include "base/process/process_handle.h"
  19 #include "base/strings/string_util.h"
  20 #include "base/test/test_reg_util_win.h"
  21 #include "base/test/test_timeouts.h"
  22 #include "base/threading/platform_thread.h"
  23 #include "base/version.h"
  24 #include "base/win/registry.h"
  25 #include "base/win/scoped_handle.h"
  26 #include "base/win/windows_version.h"
  27 #include "chrome/installer/setup/setup_constants.h"
  28 #include "chrome/installer/setup/setup_util.h"
  29 #include "chrome/installer/util/browser_distribution.h"
  30 #include "chrome/installer/util/google_update_constants.h"
  31 #include "chrome/installer/util/installation_state.h"
  32 #include "chrome/installer/util/installer_state.h"
  33 #include "chrome/installer/util/updating_app_registration_data.h"
  34 #include "chrome/installer/util/util_constants.h"
  35 #include "testing/gtest/include/gtest/gtest.h"
  36
  37 namespace {
  38
  39 // The privilege tested in ScopeTokenPrivilege tests below.
  40 // Use SE_RESTORE_NAME as it is one of the many privileges that is available,
  41 // but not enabled by default on processes running at high integrity.
  42 static const wchar_t kTestedPrivilege[] = SE_RESTORE_NAME;
  43
  44 // Returns true if the current process' token has privilege |privilege_name|
  45 // enabled.
  46 bool CurrentProcessHasPrivilege(const wchar_t* privilege_name) {
  47   HANDLE temp_handle;
  48   if (!::OpenProcessToken(::GetCurrentProcess(), TOKEN_QUERY,
  49                           &temp_handle)) {
  50     ADD_FAILURE();
  51     return false;
  52   }
  53
  54   base::win::ScopedHandle token(temp_handle);
  55
  56   // First get the size of the buffer needed for |privileges| below.
  57   DWORD size;
  58   EXPECT_FALSE(::GetTokenInformation(token.Get(), TokenPrivileges, NULL, 0,
  59                                      &size));
  60
  61   scoped_ptr<BYTE[]> privileges_bytes(new BYTE[size]);
  62   TOKEN_PRIVILEGES* privileges =
  63       reinterpret_cast<TOKEN_PRIVILEGES*>(privileges_bytes.get());
  64
  65   if (!::GetTokenInformation(token.Get(), TokenPrivileges, privileges, size,
  66                              &size)) {
  67     ADD_FAILURE();
  68     return false;
  69   }
  70
  71   // There is no point getting a buffer to store more than |privilege_name|\0 as
  72   // anything longer will obviously not be equal to |privilege_name|.
  73   const DWORD desired_size = static_cast<DWORD>(wcslen(privilege_name));
  74   const DWORD buffer_size = desired_size + 1;
  75   scoped_ptr<wchar_t[]> name_buffer(new wchar_t[buffer_size]);
  76   for (int i = privileges->PrivilegeCount - 1; i >= 0 ; --i) {
  77     LUID_AND_ATTRIBUTES& luid_and_att = privileges->Privileges[i];
  78     DWORD size = buffer_size;
  79     ::LookupPrivilegeName(NULL, &luid_and_att.Luid, name_buffer.get(), &size);
  80     if (size == desired_size &&
  81         wcscmp(name_buffer.get(), privilege_name) == 0) {
  82       return luid_and_att.Attributes == SE_PRIVILEGE_ENABLED;
  83     }
  84   }
  85   return false;
  86 }
  87
  88 }  // namespace
  89
  90 // Test that we are parsing Chrome version correctly.
  91 TEST(SetupUtilTest, GetMaxVersionFromArchiveDirTest) {
  92   // Create a version dir
  93   base::ScopedTempDir test_dir;
  94   ASSERT_TRUE(test_dir.CreateUniqueTempDir());
  95   base::FilePath chrome_dir = test_dir.path().AppendASCII("1.0.0.0");
  96   base::CreateDirectory(chrome_dir);
  97   ASSERT_TRUE(base::PathExists(chrome_dir));
  98   scoped_ptr<Version> version(
  99       installer::GetMaxVersionFromArchiveDir(test_dir.path()));
 100   ASSERT_EQ(version->GetString(), "1.0.0.0");
 101
 102   base::DeleteFile(chrome_dir, true);
 103   ASSERT_FALSE(base::PathExists(chrome_dir)) << chrome_dir.value();
 104   ASSERT_TRUE(installer::GetMaxVersionFromArchiveDir(test_dir.path()) == NULL);
 105
 106   chrome_dir = test_dir.path().AppendASCII("ABC");
 107   base::CreateDirectory(chrome_dir);
 108   ASSERT_TRUE(base::PathExists(chrome_dir));
 109   ASSERT_TRUE(installer::GetMaxVersionFromArchiveDir(test_dir.path()) == NULL);
 110
 111   chrome_dir = test_dir.path().AppendASCII("2.3.4.5");
 112   base::CreateDirectory(chrome_dir);
 113   ASSERT_TRUE(base::PathExists(chrome_dir));
 114   version.reset(installer::GetMaxVersionFromArchiveDir(test_dir.path()));
 115   ASSERT_EQ(version->GetString(), "2.3.4.5");
 116
 117   // Create multiple version dirs, ensure that we select the greatest.
 118   chrome_dir = test_dir.path().AppendASCII("9.9.9.9");
 119   base::CreateDirectory(chrome_dir);
 120   ASSERT_TRUE(base::PathExists(chrome_dir));
 121   chrome_dir = test_dir.path().AppendASCII("1.1.1.1");
 122   base::CreateDirectory(chrome_dir);
 123   ASSERT_TRUE(base::PathExists(chrome_dir));
 124
 125   version.reset(installer::GetMaxVersionFromArchiveDir(test_dir.path()));
 126   ASSERT_EQ(version->GetString(), "9.9.9.9");
 127 }
 128
 129 TEST(SetupUtilTest, DeleteFileFromTempProcess) {
 130   base::ScopedTempDir test_dir;
 131   ASSERT_TRUE(test_dir.CreateUniqueTempDir());
 132   base::FilePath test_file;
 133   base::CreateTemporaryFileInDir(test_dir.path(), &test_file);
 134   ASSERT_TRUE(base::PathExists(test_file));
 135   base::WriteFile(test_file, "foo", 3);
 136   EXPECT_TRUE(installer::DeleteFileFromTempProcess(test_file, 0));
 137   base::PlatformThread::Sleep(TestTimeouts::tiny_timeout() * 3);
 138   EXPECT_FALSE(base::PathExists(test_file)) << test_file.value();
 139 }
 140
 141 // Note: This test is only valid when run at high integrity (i.e. it will fail
 142 // at medium integrity).
 143 TEST(SetupUtilTest, ScopedTokenPrivilegeBasic) {
 144   ASSERT_FALSE(CurrentProcessHasPrivilege(kTestedPrivilege));
 145
 146   {
 147     installer::ScopedTokenPrivilege test_scoped_privilege(kTestedPrivilege);
 148     ASSERT_TRUE(test_scoped_privilege.is_enabled());
 149     ASSERT_TRUE(CurrentProcessHasPrivilege(kTestedPrivilege));
 150   }
 151
 152   ASSERT_FALSE(CurrentProcessHasPrivilege(kTestedPrivilege));
 153 }
 154
 155 // Note: This test is only valid when run at high integrity (i.e. it will fail
 156 // at medium integrity).
 157 TEST(SetupUtilTest, ScopedTokenPrivilegeAlreadyEnabled) {
 158   ASSERT_FALSE(CurrentProcessHasPrivilege(kTestedPrivilege));
 159
 160   {
 161     installer::ScopedTokenPrivilege test_scoped_privilege(kTestedPrivilege);
 162     ASSERT_TRUE(test_scoped_privilege.is_enabled());
 163     ASSERT_TRUE(CurrentProcessHasPrivilege(kTestedPrivilege));
 164     {
 165       installer::ScopedTokenPrivilege dup_scoped_privilege(kTestedPrivilege);
 166       ASSERT_TRUE(dup_scoped_privilege.is_enabled());
 167       ASSERT_TRUE(CurrentProcessHasPrivilege(kTestedPrivilege));
 168     }
 169     ASSERT_TRUE(CurrentProcessHasPrivilege(kTestedPrivilege));
 170   }
 171
 172   ASSERT_FALSE(CurrentProcessHasPrivilege(kTestedPrivilege));
 173 }
 174
 175 const char kAdjustProcessPriority[] = "adjust-process-priority";
 176
 177 PriorityClassChangeResult DoProcessPriorityAdjustment() {
 178   return installer::AdjustProcessPriority() ? PCCR_CHANGED : PCCR_UNCHANGED;
 179 }
 180
 181 namespace {
 182
 183 // A scoper that sets/resets the current process's priority class.
 184 class ScopedPriorityClass {
 185  public:
 186   // Applies |priority_class|, returning an instance if a change was made.
 187   // Otherwise, returns an empty scoped_ptr.
 188   static scoped_ptr<ScopedPriorityClass> Create(DWORD priority_class);
 189   ~ScopedPriorityClass();
 190
 191  private:
 192   explicit ScopedPriorityClass(DWORD original_priority_class);
 193   DWORD original_priority_class_;
 194   DISALLOW_COPY_AND_ASSIGN(ScopedPriorityClass);
 195 };
 196
 197 scoped_ptr<ScopedPriorityClass> ScopedPriorityClass::Create(
 198     DWORD priority_class) {
 199   HANDLE this_process = ::GetCurrentProcess();
 200   DWORD original_priority_class = ::GetPriorityClass(this_process);
 201   EXPECT_NE(0U, original_priority_class);
 202   if (original_priority_class && original_priority_class != priority_class) {
 203     BOOL result = ::SetPriorityClass(this_process, priority_class);
 204     EXPECT_NE(FALSE, result);
 205     if (result) {
 206       return scoped_ptr<ScopedPriorityClass>(
 207           new ScopedPriorityClass(original_priority_class));
 208     }
 209   }
 210   return scoped_ptr<ScopedPriorityClass>();
 211 }
 212
 213 ScopedPriorityClass::ScopedPriorityClass(DWORD original_priority_class)
 214     : original_priority_class_(original_priority_class) {}
 215
 216 ScopedPriorityClass::~ScopedPriorityClass() {
 217   BOOL result = ::SetPriorityClass(::GetCurrentProcess(),
 218                                    original_priority_class_);
 219   EXPECT_NE(FALSE, result);
 220 }
 221
 222 PriorityClassChangeResult RelaunchAndDoProcessPriorityAdjustment() {
 223   base::CommandLine cmd_line(*base::CommandLine::ForCurrentProcess());
 224   cmd_line.AppendSwitch(kAdjustProcessPriority);
 225   base::Process process = base::LaunchProcess(cmd_line, base::LaunchOptions());
 226   int exit_code = 0;
 227   if (!process.IsValid()) {
 228     ADD_FAILURE() << " to launch subprocess.";
 229   } else if (!process.WaitForExit(&exit_code)) {
 230     ADD_FAILURE() << " to wait for subprocess to exit.";
 231   } else {
 232     return static_cast<PriorityClassChangeResult>(exit_code);
 233   }
 234   return PCCR_UNKNOWN;
 235 }
 236
 237 }  // namespace
 238
 239 // Launching a subprocess at normal priority class is a noop.
 240 TEST(SetupUtilTest, AdjustFromNormalPriority) {
 241   ASSERT_EQ(NORMAL_PRIORITY_CLASS, ::GetPriorityClass(::GetCurrentProcess()));
 242   EXPECT_EQ(PCCR_UNCHANGED, RelaunchAndDoProcessPriorityAdjustment());
 243 }
 244
 245 // Launching a subprocess below normal priority class drops it to bg mode for
 246 // sufficiently recent operating systems.
 247 TEST(SetupUtilTest, AdjustFromBelowNormalPriority) {
 248   scoped_ptr<ScopedPriorityClass> below_normal =
 249       ScopedPriorityClass::Create(BELOW_NORMAL_PRIORITY_CLASS);
 250   ASSERT_TRUE(below_normal);
 251   if (base::win::GetVersion() > base::win::VERSION_SERVER_2003)
 252     EXPECT_EQ(PCCR_CHANGED, RelaunchAndDoProcessPriorityAdjustment());
 253   else
 254     EXPECT_EQ(PCCR_UNCHANGED, RelaunchAndDoProcessPriorityAdjustment());
 255 }
 256
 257 namespace {
 258
 259 // A test fixture that configures an InstallationState and an InstallerState
 260 // with a product being updated.
 261 class FindArchiveToPatchTest : public testing::Test {
 262  protected:
 263   class FakeInstallationState : public installer::InstallationState {
 264   };
 265
 266   class FakeProductState : public installer::ProductState {
 267    public:
 268     static FakeProductState* FromProductState(const ProductState* product) {
 269       return static_cast<FakeProductState*>(const_cast<ProductState*>(product));
 270     }
 271
 272     void set_version(const Version& version) {
 273       if (version.IsValid())
 274         version_.reset(new Version(version));
 275       else
 276         version_.reset();
 277     }
 278
 279     void set_uninstall_command(const base::CommandLine& uninstall_command) {
 280       uninstall_command_ = uninstall_command;
 281     }
 282   };
 283
 284   FindArchiveToPatchTest() {}
 285
 286   void SetUp() override {
 287     ASSERT_TRUE(test_dir_.CreateUniqueTempDir());
 288     registry_override_manager_.OverrideRegistry(HKEY_CURRENT_USER);
 289     registry_override_manager_.OverrideRegistry(HKEY_LOCAL_MACHINE);
 290     product_version_ = Version("30.0.1559.0");
 291     max_version_ = Version("47.0.1559.0");
 292
 293     // Install the product according to the version.
 294     original_state_.reset(new FakeInstallationState());
 295     InstallProduct();
 296
 297     // Prepare to update the product in the temp dir.
 298     installer_state_.reset(new installer::InstallerState(
 299         kSystemInstall_ ? installer::InstallerState::SYSTEM_LEVEL :
 300         installer::InstallerState::USER_LEVEL));
 301     installer_state_->AddProductFromState(
 302         kProductType_,
 303         *original_state_->GetProductState(kSystemInstall_, kProductType_));
 304
 305     // Create archives in the two version dirs.
 306     ASSERT_TRUE(
 307         base::CreateDirectory(GetProductVersionArchivePath().DirName()));
 308     ASSERT_EQ(1, base::WriteFile(GetProductVersionArchivePath(), "a", 1));
 309     ASSERT_TRUE(
 310         base::CreateDirectory(GetMaxVersionArchivePath().DirName()));
 311     ASSERT_EQ(1, base::WriteFile(GetMaxVersionArchivePath(), "b", 1));
 312   }
 313
 314   void TearDown() override {
 315     original_state_.reset();
 316   }
 317
 318   base::FilePath GetArchivePath(const Version& version) const {
 319     return test_dir_.path()
 320         .AppendASCII(version.GetString())
 321         .Append(installer::kInstallerDir)
 322         .Append(installer::kChromeArchive);
 323   }
 324
 325   base::FilePath GetMaxVersionArchivePath() const {
 326     return GetArchivePath(max_version_);
 327   }
 328
 329   base::FilePath GetProductVersionArchivePath() const {
 330     return GetArchivePath(product_version_);
 331   }
 332
 333   void InstallProduct() {
 334     FakeProductState* product = FakeProductState::FromProductState(
 335         original_state_->GetNonVersionedProductState(kSystemInstall_,
 336                                                      kProductType_));
 337
 338     product->set_version(product_version_);
 339     base::CommandLine uninstall_command(
 340         test_dir_.path()
 341             .AppendASCII(product_version_.GetString())
 342             .Append(installer::kInstallerDir)
 343             .Append(installer::kSetupExe));
 344     uninstall_command.AppendSwitch(installer::switches::kUninstall);
 345     product->set_uninstall_command(uninstall_command);
 346   }
 347
 348   void UninstallProduct() {
 349     FakeProductState::FromProductState(
 350         original_state_->GetNonVersionedProductState(kSystemInstall_,
 351                                                      kProductType_))
 352         ->set_version(Version());
 353   }
 354
 355   static const bool kSystemInstall_;
 356   static const BrowserDistribution::Type kProductType_;
 357   base::ScopedTempDir test_dir_;
 358   Version product_version_;
 359   Version max_version_;
 360   scoped_ptr<FakeInstallationState> original_state_;
 361   scoped_ptr<installer::InstallerState> installer_state_;
 362
 363  private:
 364   registry_util::RegistryOverrideManager registry_override_manager_;
 365
 366   DISALLOW_COPY_AND_ASSIGN(FindArchiveToPatchTest);
 367 };
 368
 369 const bool FindArchiveToPatchTest::kSystemInstall_ = false;
 370 const BrowserDistribution::Type FindArchiveToPatchTest::kProductType_ =
 371     BrowserDistribution::CHROME_BROWSER;
 372
 373 }  // namespace
 374
 375 // Test that the path to the advertised product version is found.
 376 TEST_F(FindArchiveToPatchTest, ProductVersionFound) {
 377   base::FilePath patch_source(installer::FindArchiveToPatch(
 378       *original_state_, *installer_state_, base::Version()));
 379   EXPECT_EQ(GetProductVersionArchivePath().value(), patch_source.value());
 380 }
 381
 382 // Test that the path to the max version is found if the advertised version is
 383 // missing.
 384 TEST_F(FindArchiveToPatchTest, MaxVersionFound) {
 385   // The patch file is absent.
 386   ASSERT_TRUE(base::DeleteFile(GetProductVersionArchivePath(), false));
 387   base::FilePath patch_source(installer::FindArchiveToPatch(
 388       *original_state_, *installer_state_, base::Version()));
 389   EXPECT_EQ(GetMaxVersionArchivePath().value(), patch_source.value());
 390
 391   // The product doesn't appear to be installed, so the max version is found.
 392   UninstallProduct();
 393   patch_source = installer::FindArchiveToPatch(
 394       *original_state_, *installer_state_, base::Version());
 395   EXPECT_EQ(GetMaxVersionArchivePath().value(), patch_source.value());
 396 }
 397
 398 // Test that an empty path is returned if no version is found.
 399 TEST_F(FindArchiveToPatchTest, NoVersionFound) {
 400   // The product doesn't appear to be installed and no archives are present.
 401   UninstallProduct();
 402   ASSERT_TRUE(base::DeleteFile(GetProductVersionArchivePath(), false));
 403   ASSERT_TRUE(base::DeleteFile(GetMaxVersionArchivePath(), false));
 404
 405   base::FilePath patch_source(installer::FindArchiveToPatch(
 406       *original_state_, *installer_state_, base::Version()));
 407   EXPECT_EQ(base::FilePath::StringType(), patch_source.value());
 408 }
 409
 410 TEST_F(FindArchiveToPatchTest, DesiredVersionFound) {
 411   base::FilePath patch_source1(installer::FindArchiveToPatch(
 412     *original_state_, *installer_state_, product_version_));
 413   EXPECT_EQ(GetProductVersionArchivePath().value(), patch_source1.value());
 414   base::FilePath patch_source2(installer::FindArchiveToPatch(
 415     *original_state_, *installer_state_, max_version_));
 416   EXPECT_EQ(GetMaxVersionArchivePath().value(), patch_source2.value());
 417 }
 418
 419 TEST_F(FindArchiveToPatchTest, DesiredVersionNotFound) {
 420   base::FilePath patch_source(installer::FindArchiveToPatch(
 421     *original_state_, *installer_state_, base::Version("1.2.3.4")));
 422   EXPECT_EQ(base::FilePath().value(), patch_source.value());
 423 }
 424
 425 #if defined(GOOGLE_CHROME_BUILD)
 426 namespace {
 427 const bool kSystemLevel = false;
 428 const HKEY kRootKey = kSystemLevel ? HKEY_LOCAL_MACHINE : HKEY_CURRENT_USER;
 429 const wchar_t kVersionString[] = L"30.0.1574.0";
 430 const wchar_t kMultiChannel[] = L"2.0-dev-multi-chromeframe";
 431
 432 class MigrateMultiToSingleTest : public testing::Test {
 433  protected:
 434   void SetUp() override {
 435     registry_override_manager_.OverrideRegistry(kRootKey);
 436   }
 437
 438  private:
 439   registry_util::RegistryOverrideManager registry_override_manager_;
 440 };
 441 }  // namespace
 442
 443 // Test migrating Chrome Frame from multi to single.
 444 TEST_F(MigrateMultiToSingleTest, ChromeFrame) {
 445   installer::ProductState chrome_frame;
 446   installer::ProductState binaries;
 447   DWORD usagestats = 0;
 448
 449   // Set up a config with dev-channel multi-install GCF.
 450   base::win::RegKey key;
 451
 452   BrowserDistribution* dist = BrowserDistribution::GetSpecificDistribution(
 453       BrowserDistribution::CHROME_BINARIES);
 454   ASSERT_EQ(ERROR_SUCCESS,
 455             base::win::RegKey(kRootKey, dist->GetVersionKey().c_str(),
 456                               KEY_SET_VALUE)
 457                 .WriteValue(google_update::kRegVersionField, kVersionString));
 458   ASSERT_EQ(ERROR_SUCCESS,
 459             base::win::RegKey(kRootKey, dist->GetStateKey().c_str(),
 460                               KEY_SET_VALUE)
 461                 .WriteValue(google_update::kRegApField, kMultiChannel));
 462   ASSERT_EQ(ERROR_SUCCESS,
 463             base::win::RegKey(kRootKey, dist->GetStateKey().c_str(),
 464                               KEY_SET_VALUE)
 465                 .WriteValue(google_update::kRegUsageStatsField, 1U));
 466
 467   dist = BrowserDistribution::GetSpecificDistribution(
 468       BrowserDistribution::CHROME_FRAME);
 469   ASSERT_EQ(ERROR_SUCCESS,
 470             base::win::RegKey(kRootKey, dist->GetVersionKey().c_str(),
 471                               KEY_SET_VALUE)
 472                 .WriteValue(google_update::kRegVersionField, kVersionString));
 473   ASSERT_EQ(ERROR_SUCCESS,
 474             base::win::RegKey(kRootKey, dist->GetStateKey().c_str(),
 475                               KEY_SET_VALUE)
 476                 .WriteValue(google_update::kRegApField, kMultiChannel));
 477
 478   // Do the registry migration.
 479   installer::InstallationState machine_state;
 480   machine_state.Initialize();
 481
 482   installer::MigrateGoogleUpdateStateMultiToSingle(
 483       kSystemLevel,
 484       BrowserDistribution::CHROME_FRAME,
 485       machine_state);
 486
 487   // Confirm that usagestats were copied to CF and that its channel was
 488   // stripped.
 489   ASSERT_TRUE(chrome_frame.Initialize(kSystemLevel,
 490                                       BrowserDistribution::CHROME_FRAME));
 491   EXPECT_TRUE(chrome_frame.GetUsageStats(&usagestats));
 492   EXPECT_EQ(1U, usagestats);
 493   EXPECT_EQ(L"2.0-dev", chrome_frame.channel().value());
 494
 495   // Confirm that the binaries' channel no longer contains GCF.
 496   ASSERT_TRUE(binaries.Initialize(kSystemLevel,
 497                                   BrowserDistribution::CHROME_BINARIES));
 498   EXPECT_EQ(L"2.0-dev-multi", binaries.channel().value());
 499 }
 500 #endif
 501
 502 TEST(SetupUtilTest, ContainsUnsupportedSwitch) {
 503   EXPECT_FALSE(installer::ContainsUnsupportedSwitch(
 504       base::CommandLine::FromString(L"foo.exe")));
 505   EXPECT_FALSE(installer::ContainsUnsupportedSwitch(
 506       base::CommandLine::FromString(L"foo.exe --multi-install --chrome")));
 507   EXPECT_TRUE(installer::ContainsUnsupportedSwitch(
 508       base::CommandLine::FromString(L"foo.exe --chrome-frame")));
 509 }
 510
 511 TEST(SetupUtilTest, GetRegistrationDataCommandKey) {
 512   base::string16 app_guid = L"{AAAAAAAA-BBBB-1111-0123-456789ABCDEF}";
 513   UpdatingAppRegistrationData reg_data(app_guid);
 514   base::string16 key =
 515       installer::GetRegistrationDataCommandKey(reg_data, L"test_name");
 516   EXPECT_TRUE(base::EndsWith(key, app_guid + L"\\Commands\\test_name",
 517                              base::CompareCase::SENSITIVE));
 518 }
 519
 520 namespace installer {
 521
 522 class DeleteRegistryKeyPartialTest : public ::testing::Test {
 523  protected:
 524   using RegKey = base::win::RegKey;
 525
 526   void SetUp() override {
 527     _registry_override_manager.OverrideRegistry(root_);
 528     to_preserve_.push_back(L"preSERve1");
 529     to_preserve_.push_back(L"1evRESerp");
 530   }
 531
 532   void CreateSubKeys(bool with_preserves) {
 533     ASSERT_FALSE(RegKey(root_, path_.c_str(), KEY_READ).Valid());
 534     // These subkeys are added such that 1) keys to preserve are intermixed with
 535     // other keys, and 2) the case of the keys to preserve doesn't match the
 536     // values in |to_preserve_|.
 537     ASSERT_EQ(ERROR_SUCCESS, RegKey(root_, path_.c_str(), KEY_WRITE)
 538                                  .CreateKey(L"0sub", KEY_WRITE));
 539     if (with_preserves) {
 540       ASSERT_EQ(ERROR_SUCCESS, RegKey(root_, path_.c_str(), KEY_WRITE)
 541                                    .CreateKey(L"1evreserp", KEY_WRITE));
 542     }
 543     ASSERT_EQ(ERROR_SUCCESS, RegKey(root_, path_.c_str(), KEY_WRITE)
 544                                  .CreateKey(L"asub", KEY_WRITE));
 545     if (with_preserves) {
 546       ASSERT_EQ(ERROR_SUCCESS, RegKey(root_, path_.c_str(), KEY_WRITE)
 547                                    .CreateKey(L"preserve1", KEY_WRITE));
 548     }
 549     ASSERT_EQ(ERROR_SUCCESS, RegKey(root_, path_.c_str(), KEY_WRITE)
 550                                  .CreateKey(L"sub1", KEY_WRITE));
 551   }
 552
 553   const HKEY root_ = HKEY_CURRENT_USER;
 554   base::string16 path_ = L"key_path";
 555   std::vector<base::string16> to_preserve_;
 556
 557  private:
 558   registry_util::RegistryOverrideManager _registry_override_manager;
 559 };
 560
 561 TEST_F(DeleteRegistryKeyPartialTest, NoKey) {
 562   DeleteRegistryKeyPartial(root_, L"does_not_exist",
 563                            std::vector<base::string16>());
 564   DeleteRegistryKeyPartial(root_, L"does_not_exist", to_preserve_);
 565 }
 566
 567 TEST_F(DeleteRegistryKeyPartialTest, EmptyKey) {
 568   ASSERT_FALSE(RegKey(root_, path_.c_str(), KEY_READ).Valid());
 569   ASSERT_TRUE(RegKey(root_, path_.c_str(), KEY_WRITE).Valid());
 570   DeleteRegistryKeyPartial(root_, path_.c_str(), std::vector<base::string16>());
 571   ASSERT_FALSE(RegKey(root_, path_.c_str(), KEY_READ).Valid());
 572
 573   ASSERT_TRUE(RegKey(root_, path_.c_str(), KEY_WRITE).Valid());
 574   DeleteRegistryKeyPartial(root_, path_.c_str(), to_preserve_);
 575   ASSERT_FALSE(RegKey(root_, path_.c_str(), KEY_READ).Valid());
 576 }
 577
 578 TEST_F(DeleteRegistryKeyPartialTest, NonEmptyKey) {
 579   CreateSubKeys(false); /* !with_preserves */
 580   DeleteRegistryKeyPartial(root_, path_.c_str(), std::vector<base::string16>());
 581   ASSERT_FALSE(RegKey(root_, path_.c_str(), KEY_READ).Valid());
 582
 583   CreateSubKeys(false); /* !with_preserves */
 584   ASSERT_TRUE(RegKey(root_, path_.c_str(), KEY_WRITE).Valid());
 585   DeleteRegistryKeyPartial(root_, path_.c_str(), to_preserve_);
 586   ASSERT_FALSE(RegKey(root_, path_.c_str(), KEY_READ).Valid());
 587 }
 588
 589 TEST_F(DeleteRegistryKeyPartialTest, NonEmptyKeyWithPreserve) {
 590   CreateSubKeys(true); /* with_preserves */
 591
 592   // Put some values into the main key.
 593   {
 594     RegKey key(root_, path_.c_str(), KEY_SET_VALUE);
 595     ASSERT_TRUE(key.Valid());
 596     ASSERT_EQ(ERROR_SUCCESS, key.WriteValue(nullptr, 5U));
 597     ASSERT_EQ(
 598         1, base::win::RegistryValueIterator(root_, path_.c_str()).ValueCount());
 599     ASSERT_EQ(ERROR_SUCCESS, key.WriteValue(L"foo", L"bar"));
 600     ASSERT_EQ(
 601         2, base::win::RegistryValueIterator(root_, path_.c_str()).ValueCount());
 602     ASSERT_EQ(ERROR_SUCCESS, key.WriteValue(L"baz", L"huh"));
 603     ASSERT_EQ(
 604         3, base::win::RegistryValueIterator(root_, path_.c_str()).ValueCount());
 605   }
 606
 607   ASSERT_TRUE(RegKey(root_, path_.c_str(), KEY_WRITE).Valid());
 608   DeleteRegistryKeyPartial(root_, path_.c_str(), to_preserve_);
 609   ASSERT_TRUE(RegKey(root_, path_.c_str(), KEY_READ).Valid());
 610
 611   // Ensure that the preserved subkeys are still present.
 612   {
 613     base::win::RegistryKeyIterator it(root_, path_.c_str());
 614     ASSERT_EQ(to_preserve_.size(), it.SubkeyCount());
 615     for (it; it.Valid(); ++it) {
 616       ASSERT_NE(to_preserve_.end(),
 617                 std::find_if(to_preserve_.begin(), to_preserve_.end(),
 618                              [&it](const base::string16& key_name) {
 619                                return base::ToLowerASCII(it.Name()) ==
 620                                       base::ToLowerASCII(key_name);
 621                              }))
 622           << it.Name();
 623     }
 624   }
 625
 626   // Ensure that all values are absent.
 627   {
 628     base::win::RegistryValueIterator it(root_, path_.c_str());
 629     ASSERT_EQ(0, it.ValueCount());
 630   }
 631 }
 632
 633 }  // namespace installer