text: /*
   *  Copyright 2003 The WebRTC Project Authors. All rights reserved.
   *
   *  Use of this source code is governed by a BSD-style license
   *  that can be found in the LICENSE file in the root of the source
   *  tree. An additional intellectual property rights grant can be found
   *  in the file PATENTS.  All contributing project authors may
   *  be found in the AUTHORS file in the root of the source tree.
   */
  
  // Unittest for registry access API
  
  #include "webrtc/base/gunit.h"
  #include "webrtc/base/common.h"
  #include "webrtc/base/win32regkey.h"
  
  namespace rtc {
  
  #ifndef EXPECT_SUCCEEDED
  #define EXPECT_SUCCEEDED(x)  EXPECT_TRUE(SUCCEEDED(x))
  #endif
  
  #ifndef EXPECT_FAILED
  #define EXPECT_FAILED(x)  EXPECT_TRUE(FAILED(x))
  #endif
  
  #define kBaseKey           L"Software\\Google\\__TEST"
  #define kSubkeyName        L"subkey_test"
  
  const wchar_t kRkey1[] = kBaseKey;
  const wchar_t kRkey1SubkeyName[] = kSubkeyName;
  const wchar_t kRkey1Subkey[] = kBaseKey L"\\" kSubkeyName;
  const wchar_t kFullRkey1[] = L"HKCU\\" kBaseKey;
  const wchar_t kFullRkey1Subkey[] = L"HKCU\\" kBaseKey L"\\" kSubkeyName;
  
  const wchar_t kValNameInt[] = L"Int32 Value";
  const DWORD kIntVal = 20;
  const DWORD kIntVal2 = 30;
  
  const wchar_t kValNameInt64[] = L"Int64 Value";
  const DWORD64 kIntVal64 = 119600064000000000uI64;
  
  const wchar_t kValNameFloat[] = L"Float Value";
  const float kFloatVal = 12.3456789f;
  
  const wchar_t kValNameDouble[] = L"Double Value";
  const double kDoubleVal = 98.7654321;
  
  const wchar_t kValNameStr[] = L"Str Value";
  const wchar_t kStrVal[] = L"Some string data 1";
  const wchar_t kStrVal2[] = L"Some string data 2";
  
  const wchar_t kValNameBinary[] = L"Binary Value";
  const char kBinaryVal[] = "Some binary data abcdefghi 1";
  const char kBinaryVal2[] = "Some binary data abcdefghi 2";
  
  const wchar_t kValNameMultiStr[] = L"MultiStr Value";
  const wchar_t kMultiSZ[] = L"abc\0def\0P12345\0";
  const wchar_t kEmptyMultiSZ[] = L"";
  const wchar_t kInvalidMultiSZ[] = {L'6', L'7', L'8'};
  
  // friend function of RegKey
  void RegKeyHelperFunctionsTest() {
    // Try out some dud values
    std::wstring temp_key = L"";
    EXPECT_TRUE(RegKey::GetRootKeyInfo(&temp_key) == NULL);
    EXPECT_STREQ(temp_key.c_str(), L"");
  
    temp_key = L"a";
    EXPECT_TRUE(RegKey::GetRootKeyInfo(&temp_key) == NULL);
    EXPECT_STREQ(temp_key.c_str(), L"");
  
    // The basics
    temp_key = L"HKLM\\a";
    EXPECT_EQ(RegKey::GetRootKeyInfo(&temp_key), HKEY_LOCAL_MACHINE);
    EXPECT_STREQ(temp_key.c_str(), L"a");
  
    temp_key = L"HKEY_LOCAL_MACHINE\\a";
    EXPECT_EQ(RegKey::GetRootKeyInfo(&temp_key), HKEY_LOCAL_MACHINE);
    EXPECT_STREQ(temp_key.c_str(), L"a");
  
    temp_key = L"HKCU\\a";
    EXPECT_EQ(RegKey::GetRootKeyInfo(&temp_key), HKEY_CURRENT_USER);
    EXPECT_STREQ(temp_key.c_str(), L"a");
  
    temp_key = L"HKEY_CURRENT_USER\\a";
    EXPECT_EQ(RegKey::GetRootKeyInfo(&temp_key), HKEY_CURRENT_USER);
    EXPECT_STREQ(temp_key.c_str(), L"a");
  
    temp_key = L"HKU\\a";
    EXPECT_EQ(RegKey::GetRootKeyInfo(&temp_key), HKEY_USERS);
    EXPECT_STREQ(temp_key.c_str(), L"a");
  
    temp_key = L"HKEY_USERS\\a";
    EXPECT_EQ(RegKey::GetRootKeyInfo(&temp_key), HKEY_USERS);
    EXPECT_STREQ(temp_key.c_str(), L"a");
  
    temp_key = L"HKCR\\a";
    EXPECT_EQ(RegKey::GetRootKeyInfo(&temp_key), HKEY_CLASSES_ROOT);
    EXPECT_STREQ(temp_key.c_str(), L"a");
  
    temp_key = L"HKEY_CLASSES_ROOT\\a";
    EXPECT_EQ(RegKey::GetRootKeyInfo(&temp_key), HKEY_CLASSES_ROOT);
    EXPECT_STREQ(temp_key.c_str(), L"a");
  
    // Make sure it is case insensitive
    temp_key = L"hkcr\\a";
    EXPECT_EQ(RegKey::GetRootKeyInfo(&temp_key), HKEY_CLASSES_ROOT);
    EXPECT_STREQ(temp_key.c_str(), L"a");
  
    temp_key = L"hkey_CLASSES_ROOT\\a";
    EXPECT_EQ(RegKey::GetRootKeyInfo(&temp_key), HKEY_CLASSES_ROOT);
    EXPECT_STREQ(temp_key.c_str(), L"a");
  
    //
    // Test RegKey::GetParentKeyInfo
    //
  
    // dud cases
    temp_key = L"";
    EXPECT_STREQ(RegKey::GetParentKeyInfo(&temp_key).c_str(), L"");
    EXPECT_STREQ(temp_key.c_str(), L"");
  
    temp_key = L"a";
    EXPECT_STREQ(RegKey::GetParentKeyInfo(&temp_key).c_str(), L"");
    EXPECT_STREQ(temp_key.c_str(), L"a");
  
    temp_key = L"a\\b";
    EXPECT_STREQ(RegKey::GetParentKeyInfo(&temp_key).c_str(), L"a");
    EXPECT_STREQ(temp_key.c_str(), L"b");
  
    temp_key = L"\\b";
    EXPECT_STREQ(RegKey::GetParentKeyInfo(&temp_key).c_str(), L"");
    EXPECT_STREQ(temp_key.c_str(), L"b");
  
    // Some regular cases
    temp_key = L"HKEY_CLASSES_ROOT\\moon";
    EXPECT_STREQ(RegKey::GetParentKeyInfo(&temp_key).c_str(),
                 L"HKEY_CLASSES_ROOT");
    EXPECT_STREQ(temp_key.c_str(), L"moon");
  
    temp_key = L"HKEY_CLASSES_ROOT\\moon\\doggy";
    EXPECT_STREQ(RegKey::GetParentKeyInfo(&temp_key).c_str(),
                 L"HKEY_CLASSES_ROOT\\moon");
    EXPECT_STREQ(temp_key.c_str(), L"doggy");
  
    //
    // Test MultiSZBytesToStringArray
    //
  
    std::vector<std::wstring> result;
    EXPECT_SUCCEEDED(RegKey::MultiSZBytesToStringArray(
        reinterpret_cast<const uint8*>(kMultiSZ), sizeof(kMultiSZ), &result));
    EXPECT_EQ(result.size(), 3);
    EXPECT_STREQ(result[0].c_str(), L"abc");
    EXPECT_STREQ(result[1].c_str(), L"def");
    EXPECT_STREQ(result[2].c_str(), L"P12345");
  
    EXPECT_SUCCEEDED(RegKey::MultiSZBytesToStringArray(
        reinterpret_cast<const uint8*>(kEmptyMultiSZ),
        sizeof(kEmptyMultiSZ), &result));
    EXPECT_EQ(result.size(), 0);
    EXPECT_FALSE(SUCCEEDED(RegKey::MultiSZBytesToStringArray(
        reinterpret_cast<const uint8*>(kInvalidMultiSZ),
        sizeof(kInvalidMultiSZ), &result)));
  }
  
  TEST(RegKeyTest, RegKeyHelperFunctionsTest) {
    RegKeyHelperFunctionsTest();
  }
  
  void RegKeyNonStaticFunctionsTest() {
    DWORD int_val = 0;
    DWORD64 int64_val = 0;
    wchar_t* str_val = NULL;
    uint8* binary_val = NULL;
    DWORD uint8_count = 0;
  
    // Just in case...
    // make sure the no test key residue is left from previous aborted runs
    RegKey::DeleteKey(kFullRkey1);
  
    // initial state
    RegKey r_key;
    EXPECT_TRUE(r_key.key() == NULL);
  
    // create a reg key
    EXPECT_SUCCEEDED(r_key.Create(HKEY_CURRENT_USER, kRkey1));
  
    // do the create twice - it should return the already created one
    EXPECT_SUCCEEDED(r_key.Create(HKEY_CURRENT_USER, kRkey1));
  
    // now do an open - should work just fine
    EXPECT_SUCCEEDED(r_key.Open(HKEY_CURRENT_USER, kRkey1));
  
    // get an in-existent value
    EXPECT_EQ(r_key.GetValue(kValNameInt, &int_val),
              HRESULT_FROM_WIN32(ERROR_FILE_NOT_FOUND));
  
    // set and get some values
  
    // set an INT 32
    EXPECT_SUCCEEDED(r_key.SetValue(kValNameInt, kIntVal));
  
    // check that the value exists
    EXPECT_TRUE(r_key.HasValue(kValNameInt));
  
    // read it back
    EXPECT_SUCCEEDED(r_key.GetValue(kValNameInt, &int_val));
    EXPECT_EQ(int_val, kIntVal);
  
    // set it again!
    EXPECT_SUCCEEDED(r_key.SetValue(kValNameInt, kIntVal2));
  
    // read it again
    EXPECT_SUCCEEDED(r_key.GetValue(kValNameInt, &int_val));
    EXPECT_EQ(int_val, kIntVal2);
  
    // delete the value
    EXPECT_SUCCEEDED(r_key.DeleteValue(kValNameInt));
  
    // check that the value is gone
    EXPECT_FALSE(r_key.HasValue(kValNameInt));
  
    // set an INT 64
    EXPECT_SUCCEEDED(r_key.SetValue(kValNameInt64, kIntVal64));
  
    // check that the value exists
    EXPECT_TRUE(r_key.HasValue(kValNameInt64));
  
    // read it back
    EXPECT_SUCCEEDED(r_key.GetValue(kValNameInt64, &int64_val));
    EXPECT_EQ(int64_val, kIntVal64);
  
    // delete the value
    EXPECT_SUCCEEDED(r_key.DeleteValue(kValNameInt64));
  
    // check that the value is gone
    EXPECT_FALSE(r_key.HasValue(kValNameInt64));
  
    // set a string
    EXPECT_SUCCEEDED(r_key.SetValue(kValNameStr, kStrVal));
  
    // check that the value exists
    EXPECT_TRUE(r_key.HasValue(kValNameStr));
  
    // read it back
    EXPECT_SUCCEEDED(r_key.GetValue(kValNameStr, &str_val));
    EXPECT_TRUE(lstrcmp(str_val, kStrVal) == 0);
    delete[] str_val;
  
    // set it again
    EXPECT_SUCCEEDED(r_key.SetValue(kValNameStr, kStrVal2));
  
    // read it again
    EXPECT_SUCCEEDED(r_key.GetValue(kValNameStr, &str_val));
    EXPECT_TRUE(lstrcmp(str_val, kStrVal2) == 0);
    delete[] str_val;
  
    // delete the value
    EXPECT_SUCCEEDED(r_key.DeleteValue(kValNameStr));
  
    // check that the value is gone
    EXPECT_FALSE(r_key.HasValue(kValNameInt));
  
    // set a binary value
    EXPECT_SUCCEEDED(r_key.SetValue(kValNameBinary,
        reinterpret_cast<const uint8*>(kBinaryVal), sizeof(kBinaryVal) - 1));
  
    // check that the value exists
    EXPECT_TRUE(r_key.HasValue(kValNameBinary));
  
    // read it back
    EXPECT_SUCCEEDED(r_key.GetValue(kValNameBinary, &binary_val, &uint8_count));
    EXPECT_TRUE(memcmp(binary_val, kBinaryVal, sizeof(kBinaryVal) - 1) == 0);
    delete[] binary_val;
  
    // set it again
    EXPECT_SUCCEEDED(r_key.SetValue(kValNameBinary,
        reinterpret_cast<const uint8*>(kBinaryVal2), sizeof(kBinaryVal) - 1));
  
    // read it again
    EXPECT_SUCCEEDED(r_key.GetValue(kValNameBinary, &binary_val, &uint8_count));
    EXPECT_TRUE(memcmp(binary_val, kBinaryVal2, sizeof(kBinaryVal2) - 1) == 0);
    delete[] binary_val;
  
    // delete the value
    EXPECT_SUCCEEDED(r_key.DeleteValue(kValNameBinary));
  
    // check that the value is gone
    EXPECT_FALSE(r_key.HasValue(kValNameBinary));
  
    // set some values and check the total count
  
    // set an INT 32
    EXPECT_SUCCEEDED(r_key.SetValue(kValNameInt, kIntVal));
  
    // set an INT 64
    EXPECT_SUCCEEDED(r_key.SetValue(kValNameInt64, kIntVal64));
  
    // set a string
    EXPECT_SUCCEEDED(r_key.SetValue(kValNameStr, kStrVal));
  
    // set a binary value
    EXPECT_SUCCEEDED(r_key.SetValue(kValNameBinary,
        reinterpret_cast<const uint8*>(kBinaryVal), sizeof(kBinaryVal) - 1));
  
    // get the value count
    uint32 value_count = r_key.GetValueCount();
    EXPECT_EQ(value_count, 4);
  
    // check the value names
    std::wstring value_name;
    DWORD type = 0;
  
    EXPECT_SUCCEEDED(r_key.GetValueNameAt(0, &value_name, &type));
    EXPECT_STREQ(value_name.c_str(), kValNameInt);
    EXPECT_EQ(type, REG_DWORD);
  
    EXPECT_SUCCEEDED(r_key.GetValueNameAt(1, &value_name, &type));
    EXPECT_STREQ(value_name.c_str(), kValNameInt64);
    EXPECT_EQ(type, REG_QWORD);
  
    EXPECT_SUCCEEDED(r_key.GetValueNameAt(2, &value_name, &type));
    EXPECT_STREQ(value_name.c_str(), kValNameStr);
    EXPECT_EQ(type, REG_SZ);
  
    EXPECT_SUCCEEDED(r_key.GetValueNameAt(3, &value_name, &type));
    EXPECT_STREQ(value_name.c_str(), kValNameBinary);
    EXPECT_EQ(type, REG_BINARY);
  
    // check that there are no more values
    EXPECT_FAILED(r_key.GetValueNameAt(4, &value_name, &type));
  
    uint32 subkey_count = r_key.GetSubkeyCount();
    EXPECT_EQ(subkey_count, 0);
  
    // now create a subkey and make sure we can get the name
    RegKey temp_key;
    EXPECT_SUCCEEDED(temp_key.Create(HKEY_CURRENT_USER, kRkey1Subkey));
  
    // check the subkey exists
    EXPECT_TRUE(r_key.HasSubkey(kRkey1SubkeyName));
  
    // check the name
    EXPECT_EQ(r_key.GetSubkeyCount(), 1);
  
    std::wstring subkey_name;
    EXPECT_SUCCEEDED(r_key.GetSubkeyNameAt(0, &subkey_name));
    EXPECT_STREQ(subkey_name.c_str(), kRkey1SubkeyName);
  
    // delete the key
    EXPECT_SUCCEEDED(r_key.DeleteSubKey(kRkey1));
  
    // close this key
    EXPECT_SUCCEEDED(r_key.Close());
  
    // whack the whole key
    EXPECT_SUCCEEDED(RegKey::DeleteKey(kFullRkey1));
  }
  
  void RegKeyStaticFunctionsTest() {
    DWORD int_val = 0;
    DWORD64 int64_val = 0;
    float float_val = 0;
    double double_val = 0;
    wchar_t* str_val = NULL;
    std::wstring wstr_val;
    uint8* binary_val = NULL;
    DWORD uint8_count = 0;
  
    // Just in case...
    // make sure the no test key residue is left from previous aborted runs
    RegKey::DeleteKey(kFullRkey1);
  
    // get an in-existent value from an un-existent key
    EXPECT_EQ(RegKey::GetValue(kFullRkey1, kValNameInt, &int_val),
              HRESULT_FROM_WIN32(ERROR_FILE_NOT_FOUND));
  
    // set int32
    EXPECT_SUCCEEDED(RegKey::SetValue(kFullRkey1, kValNameInt, kIntVal));
  
    // check that the value exists
    EXPECT_TRUE(RegKey::HasValue(kFullRkey1, kValNameInt));
  
    // get an in-existent value from an existent key
    EXPECT_EQ(RegKey::GetValue(kFullRkey1, L"bogus", &int_val),
              HRESULT_FROM_WIN32(ERROR_FILE_NOT_FOUND));
  
    // read it back
    EXPECT_SUCCEEDED(RegKey::GetValue(kFullRkey1, kValNameInt, &int_val));
    EXPECT_EQ(int_val, kIntVal);
  
    // delete the value
    EXPECT_SUCCEEDED(RegKey::DeleteValue(kFullRkey1, kValNameInt));
  
    // check that the value is gone
    EXPECT_FALSE(RegKey::HasValue(kFullRkey1, kValNameInt));
  
    // set int64
    EXPECT_SUCCEEDED(RegKey::SetValue(kFullRkey1, kValNameInt64, kIntVal64));
  
    // check that the value exists
    EXPECT_TRUE(RegKey::HasValue(kFullRkey1, kValNameInt64));
  
    // read it back
    EXPECT_SUCCEEDED(RegKey::GetValue(kFullRkey1, kValNameInt64, &int64_val));
    EXPECT_EQ(int64_val, kIntVal64);
  
    // delete the value
    EXPECT_SUCCEEDED(RegKey::DeleteValue(kFullRkey1, kValNameInt64));
  
    // check that the value is gone
    EXPECT_FALSE(RegKey::HasValue(kFullRkey1, kValNameInt64));
  
    // set float
    EXPECT_SUCCEEDED(RegKey::SetValue(kFullRkey1, kValNameFloat, kFloatVal));
  
    // check that the value exists
    EXPECT_TRUE(RegKey::HasValue(kFullRkey1, kValNameFloat));
  
    // read it back
    EXPECT_SUCCEEDED(RegKey::GetValue(kFullRkey1, kValNameFloat, &float_val));
    EXPECT_EQ(float_val, kFloatVal);
  
    // delete the value
    EXPECT_SUCCEEDED(RegKey::DeleteValue(kFullRkey1, kValNameFloat));
  
    // check that the value is gone
    EXPECT_FALSE(RegKey::HasValue(kFullRkey1, kValNameFloat));
    EXPECT_FAILED(RegKey::GetValue(kFullRkey1, kValNameFloat, &float_val));
  
    // set double
    EXPECT_SUCCEEDED(RegKey::SetValue(kFullRkey1, kValNameDouble, kDoubleVal));
  
    // check that the value exists
    EXPECT_TRUE(RegKey::HasValue(kFullRkey1, kValNameDouble));
  
    // read it back
    EXPECT_SUCCEEDED(RegKey::GetValue(kFullRkey1, kValNameDouble, &double_val));
    EXPECT_EQ(double_val, kDoubleVal);
  
    // delete the value
    EXPECT_SUCCEEDED(RegKey::DeleteValue(kFullRkey1, kValNameDouble));
  
    // check that the value is gone
    EXPECT_FALSE(RegKey::HasValue(kFullRkey1, kValNameDouble));
    EXPECT_FAILED(RegKey::GetValue(kFullRkey1, kValNameDouble, &double_val));
  
    // set string
    EXPECT_SUCCEEDED(RegKey::SetValue(kFullRkey1, kValNameStr, kStrVal));
  
    // check that the value exists
    EXPECT_TRUE(RegKey::HasValue(kFullRkey1, kValNameStr));
  
    // read it back
    EXPECT_SUCCEEDED(RegKey::GetValue(kFullRkey1, kValNameStr, &str_val));
    EXPECT_TRUE(lstrcmp(str_val, kStrVal) == 0);
    delete[] str_val;
  
    // read it back in std::wstring
    EXPECT_SUCCEEDED(RegKey::GetValue(kFullRkey1, kValNameStr, &wstr_val));
    EXPECT_STREQ(wstr_val.c_str(), kStrVal);
  
    // get an in-existent value from an existent key
    EXPECT_EQ(RegKey::GetValue(kFullRkey1, L"bogus", &str_val),
              HRESULT_FROM_WIN32(ERROR_FILE_NOT_FOUND));
  
    // delete the value
    EXPECT_SUCCEEDED(RegKey::DeleteValue(kFullRkey1, kValNameStr));
  
    // check that the value is gone
    EXPECT_FALSE(RegKey::HasValue(kFullRkey1, kValNameStr));
  
    // set binary
    EXPECT_SUCCEEDED(RegKey::SetValue(kFullRkey1, kValNameBinary,
        reinterpret_cast<const uint8*>(kBinaryVal), sizeof(kBinaryVal)-1));
  
    // check that the value exists
    EXPECT_TRUE(RegKey::HasValue(kFullRkey1, kValNameBinary));
  
    // read it back
    EXPECT_SUCCEEDED(RegKey::GetValue(kFullRkey1, kValNameBinary,
        &binary_val, &uint8_count));
    EXPECT_TRUE(memcmp(binary_val, kBinaryVal, sizeof(kBinaryVal)-1) == 0);
    delete[] binary_val;
  
    // delete the value
    EXPECT_SUCCEEDED(RegKey::DeleteValue(kFullRkey1, kValNameBinary));
  
    // check that the value is gone
    EXPECT_FALSE(RegKey::HasValue(kFullRkey1, kValNameBinary));
  
    // special case - set a binary value with length 0
    EXPECT_SUCCEEDED(RegKey::SetValue(kFullRkey1, kValNameBinary,
        reinterpret_cast<const uint8*>(kBinaryVal), 0));
  
    // check that the value exists
    EXPECT_TRUE(RegKey::HasValue(kFullRkey1, kValNameBinary));
  
    // read it back
    EXPECT_SUCCEEDED(RegKey::GetValue(kFullRkey1, kValNameBinary,
        &binary_val, &uint8_count));
    EXPECT_EQ(uint8_count, 0);
    EXPECT_TRUE(binary_val == NULL);
    delete[] binary_val;
  
    // delete the value
    EXPECT_SUCCEEDED(RegKey::DeleteValue(kFullRkey1, kValNameBinary));
  
    // check that the value is gone
    EXPECT_FALSE(RegKey::HasValue(kFullRkey1, kValNameBinary));
  
    // special case - set a NULL binary value
    EXPECT_SUCCEEDED(RegKey::SetValue(kFullRkey1, kValNameBinary, NULL, 100));
  
    // check that the value exists
    EXPECT_TRUE(RegKey::HasValue(kFullRkey1, kValNameBinary));
  
    // read it back
    EXPECT_SUCCEEDED(RegKey::GetValue(kFullRkey1, kValNameBinary,
                                      &binary_val, &uint8_count));
    EXPECT_EQ(uint8_count, 0);
    EXPECT_TRUE(binary_val == NULL);
    delete[] binary_val;
  
    // delete the value
    EXPECT_SUCCEEDED(RegKey::DeleteValue(kFullRkey1, kValNameBinary));
  
    // check that the value is gone
    EXPECT_FALSE(RegKey::HasValue(kFullRkey1, kValNameBinary));
  
    // test read/write REG_MULTI_SZ value
    std::vector<std::wstring> result;
    EXPECT_SUCCEEDED(RegKey::SetValueMultiSZ(kFullRkey1, kValNameMultiStr,
        reinterpret_cast<const uint8*>(kMultiSZ), sizeof(kMultiSZ)));
    EXPECT_SUCCEEDED(RegKey::GetValue(kFullRkey1, kValNameMultiStr, &result));
    EXPECT_EQ(result.size(), 3);
    EXPECT_STREQ(result[0].c_str(), L"abc");
    EXPECT_STREQ(result[1].c_str(), L"def");
    EXPECT_STREQ(result[2].c_str(), L"P12345");
    EXPECT_SUCCEEDED(RegKey::SetValueMultiSZ(kFullRkey1, kValNameMultiStr,
        reinterpret_cast<const uint8*>(kEmptyMultiSZ), sizeof(kEmptyMultiSZ)));
    EXPECT_SUCCEEDED(RegKey::GetValue(kFullRkey1, kValNameMultiStr, &result));
    EXPECT_EQ(result.size(), 0);
    // writing REG_MULTI_SZ value will automatically add ending null characters
    EXPECT_SUCCEEDED(RegKey::SetValueMultiSZ(kFullRkey1, kValNameMultiStr,
        reinterpret_cast<const uint8*>(kInvalidMultiSZ), sizeof(kInvalidMultiSZ)));
    EXPECT_SUCCEEDED(RegKey::GetValue(kFullRkey1, kValNameMultiStr, &result));
    EXPECT_EQ(result.size(), 1);
    EXPECT_STREQ(result[0].c_str(), L"678");
  
    // Run the following test only in dev machine
    // This is because the build machine might not have admin privilege
  #ifdef IS_PRIVATE_BUILD
    // get a temp file name
    wchar_t temp_path[MAX_PATH] = {0};
    EXPECT_LT(::GetTempPath(ARRAY_SIZE(temp_path), temp_path),
              static_cast<DWORD>(ARRAY_SIZE(temp_path)));
    wchar_t temp_file[MAX_PATH] = {0};
    EXPECT_NE(::GetTempFileName(temp_path, L"rkut_",
                                ::GetTickCount(), temp_file), 0);
  
    // test save
    EXPECT_SUCCEEDED(RegKey::SetValue(kFullRkey1Subkey, kValNameInt, kIntVal));
    EXPECT_SUCCEEDED(RegKey::SetValue(kFullRkey1Subkey, kValNameInt64, kIntVal64));
    EXPECT_SUCCEEDED(RegKey::Save(kFullRkey1Subkey, temp_file));
    EXPECT_SUCCEEDED(RegKey::DeleteValue(kFullRkey1Subkey, kValNameInt));
    EXPECT_SUCCEEDED(RegKey::DeleteValue(kFullRkey1Subkey, kValNameInt64));
  
    // test restore
    EXPECT_SUCCEEDED(RegKey::Restore(kFullRkey1Subkey, temp_file));
    int_val = 0;
    EXPECT_SUCCEEDED(RegKey::GetValue(kFullRkey1Subkey, kValNameInt, &int_val));
    EXPECT_EQ(int_val, kIntVal);
    int64_val = 0;
    EXPECT_SUCCEEDED(RegKey::GetValue(kFullRkey1Subkey,
                                      kValNameInt64,
                                      &int64_val));
    EXPECT_EQ(int64_val, kIntVal64);
  
    // delete the temp file
    EXPECT_EQ(TRUE, ::DeleteFile(temp_file));
  #endif
  
    // whack the whole key
    EXPECT_SUCCEEDED(RegKey::DeleteKey(kFullRkey1));
  }
  
  // Run both tests under the same test target. Because they access (read and
  // write) the same registry keys they can't run in parallel with eachother.
  TEST(RegKeyTest, RegKeyFunctionsTest) {
    RegKeyNonStaticFunctionsTest();
    RegKeyStaticFunctionsTest();
  }
  
  }  // namespace rtc
  