src/chrome/installer/util/create_reg_key_work_item_unittest.cc

   1 // Copyright (c) 2011 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 "base/files/file_path.h"
   8 #include "base/memory/scoped_ptr.h"
   9 #include "base/strings/string_util.h"
  10 #include "base/win/registry.h"
  11 #include "chrome/installer/util/create_reg_key_work_item.h"
  12 #include "chrome/installer/util/work_item.h"
  13 #include "testing/gtest/include/gtest/gtest.h"
  14
  15 using base::win::RegKey;
  16
  17 namespace {
  18
  19 wchar_t test_root[] = L"TmpTmp";
  20
  21 class CreateRegKeyWorkItemTest : public testing::Test {
  22  protected:
  23   virtual void SetUp() {
  24     // Create a temporary key for testing
  25     RegKey key(HKEY_CURRENT_USER, L"", KEY_ALL_ACCESS);
  26     key.DeleteKey(test_root);
  27     ASSERT_NE(ERROR_SUCCESS, key.Open(HKEY_CURRENT_USER, test_root, KEY_READ));
  28     ASSERT_EQ(ERROR_SUCCESS, key.Create(HKEY_CURRENT_USER, test_root,
  29                                         KEY_READ));
  30   }
  31   virtual void TearDown() {
  32     logging::CloseLogFile();
  33     // Clean up the temporary key
  34     RegKey key(HKEY_CURRENT_USER, L"", KEY_ALL_ACCESS);
  35     ASSERT_EQ(ERROR_SUCCESS, key.DeleteKey(test_root));
  36   }
  37 };
  38
  39 }  // namespace
  40
  41 TEST_F(CreateRegKeyWorkItemTest, CreateKey) {
  42   RegKey key;
  43
  44   base::FilePath parent_key(test_root);
  45   parent_key = parent_key.AppendASCII("a");
  46   ASSERT_EQ(ERROR_SUCCESS,
  47       key.Create(HKEY_CURRENT_USER, parent_key.value().c_str(), KEY_READ));
  48
  49   base::FilePath top_key_to_create(parent_key);
  50   top_key_to_create = top_key_to_create.AppendASCII("b");
  51
  52   base::FilePath key_to_create(top_key_to_create);
  53   key_to_create = key_to_create.AppendASCII("c");
  54   key_to_create = key_to_create.AppendASCII("d");
  55
  56   scoped_ptr<CreateRegKeyWorkItem> work_item(
  57       WorkItem::CreateCreateRegKeyWorkItem(HKEY_CURRENT_USER,
  58                                            key_to_create.value()));
  59
  60   EXPECT_TRUE(work_item->Do());
  61
  62   EXPECT_EQ(ERROR_SUCCESS,
  63       key.Open(HKEY_CURRENT_USER, key_to_create.value().c_str(), KEY_READ));
  64
  65   work_item->Rollback();
  66
  67   // Rollback should delete all the keys up to top_key_to_create.
  68   EXPECT_NE(ERROR_SUCCESS,
  69       key.Open(HKEY_CURRENT_USER, top_key_to_create.value().c_str(), KEY_READ));
  70   EXPECT_EQ(ERROR_SUCCESS,
  71       key.Open(HKEY_CURRENT_USER, parent_key.value().c_str(), KEY_READ));
  72 }
  73
  74 TEST_F(CreateRegKeyWorkItemTest, CreateExistingKey) {
  75   RegKey key;
  76
  77   base::FilePath key_to_create(test_root);
  78   key_to_create = key_to_create.AppendASCII("aa");
  79   ASSERT_EQ(ERROR_SUCCESS,
  80       key.Create(HKEY_CURRENT_USER, key_to_create.value().c_str(), KEY_READ));
  81
  82   scoped_ptr<CreateRegKeyWorkItem> work_item(
  83       WorkItem::CreateCreateRegKeyWorkItem(HKEY_CURRENT_USER,
  84                                            key_to_create.value()));
  85
  86   EXPECT_TRUE(work_item->Do());
  87
  88   EXPECT_EQ(ERROR_SUCCESS,
  89       key.Open(HKEY_CURRENT_USER, key_to_create.value().c_str(), KEY_READ));
  90
  91   work_item->Rollback();
  92
  93   // Rollback should not remove the key since it exists before
  94   // the CreateRegKeyWorkItem is called.
  95   EXPECT_EQ(ERROR_SUCCESS,
  96       key.Open(HKEY_CURRENT_USER, key_to_create.value().c_str(), KEY_READ));
  97 }
  98
  99 TEST_F(CreateRegKeyWorkItemTest, CreateSharedKey) {
 100   RegKey key;
 101   base::FilePath key_to_create_1(test_root);
 102   key_to_create_1 = key_to_create_1.AppendASCII("aaa");
 103
 104   base::FilePath key_to_create_2(key_to_create_1);
 105   key_to_create_2 = key_to_create_2.AppendASCII("bbb");
 106
 107   base::FilePath key_to_create_3(key_to_create_2);
 108   key_to_create_3 = key_to_create_3.AppendASCII("ccc");
 109
 110   scoped_ptr<CreateRegKeyWorkItem> work_item(
 111       WorkItem::CreateCreateRegKeyWorkItem(HKEY_CURRENT_USER,
 112                                            key_to_create_3.value()));
 113
 114   EXPECT_TRUE(work_item->Do());
 115
 116   EXPECT_EQ(ERROR_SUCCESS,
 117       key.Open(HKEY_CURRENT_USER, key_to_create_3.value().c_str(), KEY_READ));
 118
 119   // Create another key under key_to_create_2
 120   base::FilePath key_to_create_4(key_to_create_2);
 121   key_to_create_4 = key_to_create_4.AppendASCII("ddd");
 122   ASSERT_EQ(ERROR_SUCCESS,
 123       key.Create(HKEY_CURRENT_USER, key_to_create_4.value().c_str(), KEY_READ));
 124
 125   work_item->Rollback();
 126
 127   // Rollback should delete key_to_create_3.
 128   EXPECT_NE(ERROR_SUCCESS,
 129       key.Open(HKEY_CURRENT_USER, key_to_create_3.value().c_str(), KEY_READ));
 130
 131   // Rollback should not delete key_to_create_2 as it is shared.
 132   EXPECT_EQ(ERROR_SUCCESS,
 133       key.Open(HKEY_CURRENT_USER, key_to_create_2.value().c_str(), KEY_READ));
 134   EXPECT_EQ(ERROR_SUCCESS,
 135       key.Open(HKEY_CURRENT_USER, key_to_create_4.value().c_str(), KEY_READ));
 136 }
 137
 138 TEST_F(CreateRegKeyWorkItemTest, RollbackWithMissingKey) {
 139   RegKey key;
 140   base::FilePath key_to_create_1(test_root);
 141   key_to_create_1 = key_to_create_1.AppendASCII("aaaa");
 142
 143   base::FilePath key_to_create_2(key_to_create_1);
 144   key_to_create_2 = key_to_create_2.AppendASCII("bbbb");
 145
 146   base::FilePath key_to_create_3(key_to_create_2);
 147   key_to_create_3 = key_to_create_3.AppendASCII("cccc");
 148
 149   scoped_ptr<CreateRegKeyWorkItem> work_item(
 150       WorkItem::CreateCreateRegKeyWorkItem(HKEY_CURRENT_USER,
 151                                            key_to_create_3.value()));
 152
 153   EXPECT_TRUE(work_item->Do());
 154
 155   EXPECT_EQ(ERROR_SUCCESS,
 156       key.Open(HKEY_CURRENT_USER, key_to_create_3.value().c_str(), KEY_READ));
 157   key.Close();
 158
 159   // now delete key_to_create_3
 160   ASSERT_EQ(ERROR_SUCCESS,
 161       RegDeleteKey(HKEY_CURRENT_USER, key_to_create_3.value().c_str()));
 162   ASSERT_NE(ERROR_SUCCESS,
 163       key.Open(HKEY_CURRENT_USER, key_to_create_3.value().c_str(), KEY_READ));
 164
 165   work_item->Rollback();
 166
 167   // key_to_create_3 has already been deleted, Rollback should delete
 168   // the rest.
 169   ASSERT_NE(ERROR_SUCCESS,
 170       key.Open(HKEY_CURRENT_USER, key_to_create_1.value().c_str(), KEY_READ));
 171 }
 172
 173 TEST_F(CreateRegKeyWorkItemTest, RollbackWithSetValue) {
 174   RegKey key;
 175
 176   base::FilePath key_to_create(test_root);
 177   key_to_create = key_to_create.AppendASCII("aaaaa");
 178
 179   scoped_ptr<CreateRegKeyWorkItem> work_item(
 180       WorkItem::CreateCreateRegKeyWorkItem(HKEY_CURRENT_USER,
 181                                            key_to_create.value()));
 182
 183   EXPECT_TRUE(work_item->Do());
 184
 185   // Write a value under the key we just created.
 186   EXPECT_EQ(ERROR_SUCCESS, key.Open(HKEY_CURRENT_USER,
 187       key_to_create.value().c_str(), KEY_READ | KEY_SET_VALUE));
 188   EXPECT_EQ(ERROR_SUCCESS, key.WriteValue(L"name", L"value"));
 189   key.Close();
 190
 191   work_item->Rollback();
 192
 193   // Rollback should not remove the key.
 194   EXPECT_EQ(ERROR_SUCCESS,
 195       key.Open(HKEY_CURRENT_USER, key_to_create.value().c_str(), KEY_READ));
 196 }