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| 1 // Copyright (c) 2012 The Chromium Authors. All rights reserved. | 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 | 2 // Use of this source code is governed by a BSD-style license that can be | 
| 3 // found in the LICENSE file. | 3 // found in the LICENSE file. | 
| 4 | 4 | 
| 5 #include "base/prefs/json_pref_store.h" | 5 #include "base/prefs/json_pref_store.h" | 
| 6 | 6 | 
| 7 #include "base/file_util.h" | 7 #include "base/file_util.h" | 
| 8 #include "base/files/scoped_temp_dir.h" | 8 #include "base/files/scoped_temp_dir.h" | 
| 9 #include "base/memory/ref_counted.h" | 9 #include "base/memory/ref_counted.h" | 
| 10 #include "base/memory/scoped_ptr.h" | 10 #include "base/memory/scoped_ptr.h" | 
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| 52   // The path to the directory where the test data is stored. | 52   // The path to the directory where the test data is stored. | 
| 53   base::FilePath data_dir_; | 53   base::FilePath data_dir_; | 
| 54   // A message loop that we can use as the file thread message loop. | 54   // A message loop that we can use as the file thread message loop. | 
| 55   MessageLoop message_loop_; | 55   MessageLoop message_loop_; | 
| 56 }; | 56 }; | 
| 57 | 57 | 
| 58 // Test fallback behavior for a nonexistent file. | 58 // Test fallback behavior for a nonexistent file. | 
| 59 TEST_F(JsonPrefStoreTest, NonExistentFile) { | 59 TEST_F(JsonPrefStoreTest, NonExistentFile) { | 
| 60   base::FilePath bogus_input_file = data_dir_.AppendASCII("read.txt"); | 60   base::FilePath bogus_input_file = data_dir_.AppendASCII("read.txt"); | 
| 61   ASSERT_FALSE(file_util::PathExists(bogus_input_file)); | 61   ASSERT_FALSE(file_util::PathExists(bogus_input_file)); | 
| 62   scoped_refptr<JsonPrefStore> pref_store = | 62   scoped_refptr<JsonPrefStore> pref_store = new JsonPrefStore( | 
| 63       new JsonPrefStore( | 63       bogus_input_file, message_loop_.message_loop_proxy().get()); | 
| 64           bogus_input_file, message_loop_.message_loop_proxy()); |  | 
| 65   EXPECT_EQ(PersistentPrefStore::PREF_READ_ERROR_NO_FILE, | 64   EXPECT_EQ(PersistentPrefStore::PREF_READ_ERROR_NO_FILE, | 
| 66             pref_store->ReadPrefs()); | 65             pref_store->ReadPrefs()); | 
| 67   EXPECT_FALSE(pref_store->ReadOnly()); | 66   EXPECT_FALSE(pref_store->ReadOnly()); | 
| 68 } | 67 } | 
| 69 | 68 | 
| 70 // Test fallback behavior for an invalid file. | 69 // Test fallback behavior for an invalid file. | 
| 71 TEST_F(JsonPrefStoreTest, InvalidFile) { | 70 TEST_F(JsonPrefStoreTest, InvalidFile) { | 
| 72   base::FilePath invalid_file_original = data_dir_.AppendASCII("invalid.json"); | 71   base::FilePath invalid_file_original = data_dir_.AppendASCII("invalid.json"); | 
| 73   base::FilePath invalid_file = temp_dir_.path().AppendASCII("invalid.json"); | 72   base::FilePath invalid_file = temp_dir_.path().AppendASCII("invalid.json"); | 
| 74   ASSERT_TRUE(file_util::CopyFile(invalid_file_original, invalid_file)); | 73   ASSERT_TRUE(file_util::CopyFile(invalid_file_original, invalid_file)); | 
| 75   scoped_refptr<JsonPrefStore> pref_store = | 74   scoped_refptr<JsonPrefStore> pref_store = | 
| 76       new JsonPrefStore( | 75       new JsonPrefStore(invalid_file, message_loop_.message_loop_proxy().get()); | 
| 77           invalid_file, message_loop_.message_loop_proxy()); |  | 
| 78   EXPECT_EQ(PersistentPrefStore::PREF_READ_ERROR_JSON_PARSE, | 76   EXPECT_EQ(PersistentPrefStore::PREF_READ_ERROR_JSON_PARSE, | 
| 79             pref_store->ReadPrefs()); | 77             pref_store->ReadPrefs()); | 
| 80   EXPECT_FALSE(pref_store->ReadOnly()); | 78   EXPECT_FALSE(pref_store->ReadOnly()); | 
| 81 | 79 | 
| 82   // The file should have been moved aside. | 80   // The file should have been moved aside. | 
| 83   EXPECT_FALSE(file_util::PathExists(invalid_file)); | 81   EXPECT_FALSE(file_util::PathExists(invalid_file)); | 
| 84   base::FilePath moved_aside = temp_dir_.path().AppendASCII("invalid.bad"); | 82   base::FilePath moved_aside = temp_dir_.path().AppendASCII("invalid.bad"); | 
| 85   EXPECT_TRUE(file_util::PathExists(moved_aside)); | 83   EXPECT_TRUE(file_util::PathExists(moved_aside)); | 
| 86   EXPECT_TRUE(file_util::TextContentsEqual(invalid_file_original, | 84   EXPECT_TRUE(file_util::TextContentsEqual(invalid_file_original, | 
| 87                                            moved_aside)); | 85                                            moved_aside)); | 
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| 154 } | 152 } | 
| 155 | 153 | 
| 156 TEST_F(JsonPrefStoreTest, Basic) { | 154 TEST_F(JsonPrefStoreTest, Basic) { | 
| 157   ASSERT_TRUE(file_util::CopyFile(data_dir_.AppendASCII("read.json"), | 155   ASSERT_TRUE(file_util::CopyFile(data_dir_.AppendASCII("read.json"), | 
| 158                                   temp_dir_.path().AppendASCII("write.json"))); | 156                                   temp_dir_.path().AppendASCII("write.json"))); | 
| 159 | 157 | 
| 160   // Test that the persistent value can be loaded. | 158   // Test that the persistent value can be loaded. | 
| 161   base::FilePath input_file = temp_dir_.path().AppendASCII("write.json"); | 159   base::FilePath input_file = temp_dir_.path().AppendASCII("write.json"); | 
| 162   ASSERT_TRUE(file_util::PathExists(input_file)); | 160   ASSERT_TRUE(file_util::PathExists(input_file)); | 
| 163   scoped_refptr<JsonPrefStore> pref_store = | 161   scoped_refptr<JsonPrefStore> pref_store = | 
| 164       new JsonPrefStore( | 162       new JsonPrefStore(input_file, message_loop_.message_loop_proxy().get()); | 
| 165           input_file, message_loop_.message_loop_proxy()); |  | 
| 166   ASSERT_EQ(PersistentPrefStore::PREF_READ_ERROR_NONE, pref_store->ReadPrefs()); | 163   ASSERT_EQ(PersistentPrefStore::PREF_READ_ERROR_NONE, pref_store->ReadPrefs()); | 
| 167   ASSERT_FALSE(pref_store->ReadOnly()); | 164   ASSERT_FALSE(pref_store->ReadOnly()); | 
| 168 | 165 | 
| 169   // The JSON file looks like this: | 166   // The JSON file looks like this: | 
| 170   // { | 167   // { | 
| 171   //   "homepage": "http://www.cnn.com", | 168   //   "homepage": "http://www.cnn.com", | 
| 172   //   "some_directory": "/usr/local/", | 169   //   "some_directory": "/usr/local/", | 
| 173   //   "tabs": { | 170   //   "tabs": { | 
| 174   //     "new_windows_in_tabs": true, | 171   //     "new_windows_in_tabs": true, | 
| 175   //     "max_tabs": 20 | 172   //     "max_tabs": 20 | 
| 176   //   } | 173   //   } | 
| 177   // } | 174   // } | 
| 178 | 175 | 
| 179   RunBasicJsonPrefStoreTest( | 176   RunBasicJsonPrefStoreTest( | 
| 180       pref_store.get(), input_file, data_dir_.AppendASCII("write.golden.json")); | 177       pref_store.get(), input_file, data_dir_.AppendASCII("write.golden.json")); | 
| 181 } | 178 } | 
| 182 | 179 | 
| 183 TEST_F(JsonPrefStoreTest, BasicAsync) { | 180 TEST_F(JsonPrefStoreTest, BasicAsync) { | 
| 184   ASSERT_TRUE(file_util::CopyFile(data_dir_.AppendASCII("read.json"), | 181   ASSERT_TRUE(file_util::CopyFile(data_dir_.AppendASCII("read.json"), | 
| 185                                   temp_dir_.path().AppendASCII("write.json"))); | 182                                   temp_dir_.path().AppendASCII("write.json"))); | 
| 186 | 183 | 
| 187   // Test that the persistent value can be loaded. | 184   // Test that the persistent value can be loaded. | 
| 188   base::FilePath input_file = temp_dir_.path().AppendASCII("write.json"); | 185   base::FilePath input_file = temp_dir_.path().AppendASCII("write.json"); | 
| 189   ASSERT_TRUE(file_util::PathExists(input_file)); | 186   ASSERT_TRUE(file_util::PathExists(input_file)); | 
| 190   scoped_refptr<JsonPrefStore> pref_store = | 187   scoped_refptr<JsonPrefStore> pref_store = | 
| 191       new JsonPrefStore( | 188       new JsonPrefStore(input_file, message_loop_.message_loop_proxy().get()); | 
| 192           input_file, message_loop_.message_loop_proxy()); |  | 
| 193 | 189 | 
| 194   { | 190   { | 
| 195     MockPrefStoreObserver mock_observer; | 191     MockPrefStoreObserver mock_observer; | 
| 196     pref_store->AddObserver(&mock_observer); | 192     pref_store->AddObserver(&mock_observer); | 
| 197 | 193 | 
| 198     MockReadErrorDelegate* mock_error_delegate = new MockReadErrorDelegate; | 194     MockReadErrorDelegate* mock_error_delegate = new MockReadErrorDelegate; | 
| 199     pref_store->ReadPrefsAsync(mock_error_delegate); | 195     pref_store->ReadPrefsAsync(mock_error_delegate); | 
| 200 | 196 | 
| 201     EXPECT_CALL(mock_observer, OnInitializationCompleted(true)).Times(1); | 197     EXPECT_CALL(mock_observer, OnInitializationCompleted(true)).Times(1); | 
| 202     EXPECT_CALL(*mock_error_delegate, | 198     EXPECT_CALL(*mock_error_delegate, | 
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| 218   // } | 214   // } | 
| 219 | 215 | 
| 220   RunBasicJsonPrefStoreTest( | 216   RunBasicJsonPrefStoreTest( | 
| 221       pref_store.get(), input_file, data_dir_.AppendASCII("write.golden.json")); | 217       pref_store.get(), input_file, data_dir_.AppendASCII("write.golden.json")); | 
| 222 } | 218 } | 
| 223 | 219 | 
| 224 // Tests asynchronous reading of the file when there is no file. | 220 // Tests asynchronous reading of the file when there is no file. | 
| 225 TEST_F(JsonPrefStoreTest, AsyncNonExistingFile) { | 221 TEST_F(JsonPrefStoreTest, AsyncNonExistingFile) { | 
| 226   base::FilePath bogus_input_file = data_dir_.AppendASCII("read.txt"); | 222   base::FilePath bogus_input_file = data_dir_.AppendASCII("read.txt"); | 
| 227   ASSERT_FALSE(file_util::PathExists(bogus_input_file)); | 223   ASSERT_FALSE(file_util::PathExists(bogus_input_file)); | 
| 228   scoped_refptr<JsonPrefStore> pref_store = | 224   scoped_refptr<JsonPrefStore> pref_store = new JsonPrefStore( | 
| 229       new JsonPrefStore( | 225       bogus_input_file, message_loop_.message_loop_proxy().get()); | 
| 230           bogus_input_file, message_loop_.message_loop_proxy()); |  | 
| 231   MockPrefStoreObserver mock_observer; | 226   MockPrefStoreObserver mock_observer; | 
| 232   pref_store->AddObserver(&mock_observer); | 227   pref_store->AddObserver(&mock_observer); | 
| 233 | 228 | 
| 234   MockReadErrorDelegate *mock_error_delegate = new MockReadErrorDelegate; | 229   MockReadErrorDelegate *mock_error_delegate = new MockReadErrorDelegate; | 
| 235   pref_store->ReadPrefsAsync(mock_error_delegate); | 230   pref_store->ReadPrefsAsync(mock_error_delegate); | 
| 236 | 231 | 
| 237   EXPECT_CALL(mock_observer, OnInitializationCompleted(true)).Times(1); | 232   EXPECT_CALL(mock_observer, OnInitializationCompleted(true)).Times(1); | 
| 238   EXPECT_CALL(*mock_error_delegate, | 233   EXPECT_CALL(*mock_error_delegate, | 
| 239               OnError(PersistentPrefStore::PREF_READ_ERROR_NO_FILE)).Times(1); | 234               OnError(PersistentPrefStore::PREF_READ_ERROR_NO_FILE)).Times(1); | 
| 240   RunLoop().RunUntilIdle(); | 235   RunLoop().RunUntilIdle(); | 
| 241   pref_store->RemoveObserver(&mock_observer); | 236   pref_store->RemoveObserver(&mock_observer); | 
| 242 | 237 | 
| 243   EXPECT_FALSE(pref_store->ReadOnly()); | 238   EXPECT_FALSE(pref_store->ReadOnly()); | 
| 244 } | 239 } | 
| 245 | 240 | 
| 246 TEST_F(JsonPrefStoreTest, NeedsEmptyValue) { | 241 TEST_F(JsonPrefStoreTest, NeedsEmptyValue) { | 
| 247   base::FilePath pref_file = temp_dir_.path().AppendASCII("write.json"); | 242   base::FilePath pref_file = temp_dir_.path().AppendASCII("write.json"); | 
| 248 | 243 | 
| 249   ASSERT_TRUE(file_util::CopyFile( | 244   ASSERT_TRUE(file_util::CopyFile( | 
| 250       data_dir_.AppendASCII("read.need_empty_value.json"), | 245       data_dir_.AppendASCII("read.need_empty_value.json"), | 
| 251       pref_file)); | 246       pref_file)); | 
| 252 | 247 | 
| 253   // Test that the persistent value can be loaded. | 248   // Test that the persistent value can be loaded. | 
| 254   ASSERT_TRUE(file_util::PathExists(pref_file)); | 249   ASSERT_TRUE(file_util::PathExists(pref_file)); | 
| 255   scoped_refptr<JsonPrefStore> pref_store = | 250   scoped_refptr<JsonPrefStore> pref_store = | 
| 256       new JsonPrefStore( | 251       new JsonPrefStore(pref_file, message_loop_.message_loop_proxy().get()); | 
| 257           pref_file, message_loop_.message_loop_proxy()); |  | 
| 258   ASSERT_EQ(PersistentPrefStore::PREF_READ_ERROR_NONE, pref_store->ReadPrefs()); | 252   ASSERT_EQ(PersistentPrefStore::PREF_READ_ERROR_NONE, pref_store->ReadPrefs()); | 
| 259   ASSERT_FALSE(pref_store->ReadOnly()); | 253   ASSERT_FALSE(pref_store->ReadOnly()); | 
| 260 | 254 | 
| 261   // The JSON file looks like this: | 255   // The JSON file looks like this: | 
| 262   // { | 256   // { | 
| 263   //   "list": [ 1 ], | 257   //   "list": [ 1 ], | 
| 264   //   "list_needs_empty_value": [ 2 ], | 258   //   "list_needs_empty_value": [ 2 ], | 
| 265   //   "dict": { | 259   //   "dict": { | 
| 266   //     "dummy": true, | 260   //     "dummy": true, | 
| 267   //   }, | 261   //   }, | 
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| 285   RunLoop().RunUntilIdle(); | 279   RunLoop().RunUntilIdle(); | 
| 286 | 280 | 
| 287   // Compare to expected output. | 281   // Compare to expected output. | 
| 288   base::FilePath golden_output_file = | 282   base::FilePath golden_output_file = | 
| 289       data_dir_.AppendASCII("write.golden.need_empty_value.json"); | 283       data_dir_.AppendASCII("write.golden.need_empty_value.json"); | 
| 290   ASSERT_TRUE(file_util::PathExists(golden_output_file)); | 284   ASSERT_TRUE(file_util::PathExists(golden_output_file)); | 
| 291   EXPECT_TRUE(file_util::TextContentsEqual(golden_output_file, pref_file)); | 285   EXPECT_TRUE(file_util::TextContentsEqual(golden_output_file, pref_file)); | 
| 292 } | 286 } | 
| 293 | 287 | 
| 294 }  // namespace base | 288 }  // namespace base | 
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