Adam Lesinski | 16c4d15 | 2014-01-24 13:27:13 -0800 | [diff] [blame] | 1 | /* |
| 2 | * Copyright (C) 2010 The Android Open Source Project |
| 3 | * |
| 4 | * Licensed under the Apache License, Version 2.0 (the "License"); |
| 5 | * you may not use this file except in compliance with the License. |
| 6 | * You may obtain a copy of the License at |
| 7 | * |
| 8 | * http://www.apache.org/licenses/LICENSE-2.0 |
| 9 | * |
| 10 | * Unless required by applicable law or agreed to in writing, software |
| 11 | * distributed under the License is distributed on an "AS IS" BASIS, |
| 12 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| 13 | * See the License for the specific language governing permissions and |
| 14 | * limitations under the License. |
| 15 | */ |
| 16 | |
| 17 | #define LOG_TAG "ObbFile_test" |
| 18 | #include <androidfw/BackupHelpers.h> |
| 19 | #include <utils/Log.h> |
| 20 | #include <utils/String8.h> |
| 21 | |
| 22 | #include <gtest/gtest.h> |
| 23 | |
| 24 | #include <sys/types.h> |
| 25 | #include <sys/stat.h> |
| 26 | #include <fcntl.h> |
| 27 | #include <string.h> |
| 28 | |
| 29 | namespace android { |
| 30 | |
| 31 | #define TEST_FILENAME "/test.bd" |
| 32 | |
| 33 | // keys of different lengths to test padding |
| 34 | #define KEY1 "key1" |
| 35 | #define KEY2 "key2a" |
| 36 | #define KEY3 "key3bc" |
| 37 | #define KEY4 "key4def" |
| 38 | |
| 39 | // payloads of different lengths to test padding |
| 40 | #define DATA1 "abcdefg" |
| 41 | #define DATA2 "hijklmnopq" |
| 42 | #define DATA3 "rstuvwxyz" |
| 43 | // KEY4 is only ever deleted |
| 44 | |
| 45 | class BackupDataTest : public testing::Test { |
| 46 | protected: |
| 47 | char* m_external_storage; |
| 48 | char* m_filename; |
| 49 | String8 mKey1; |
| 50 | String8 mKey2; |
| 51 | String8 mKey3; |
| 52 | String8 mKey4; |
| 53 | |
| 54 | virtual void SetUp() { |
| 55 | m_external_storage = getenv("EXTERNAL_STORAGE"); |
| 56 | |
| 57 | const int totalLen = strlen(m_external_storage) + strlen(TEST_FILENAME) + 1; |
| 58 | m_filename = new char[totalLen]; |
| 59 | snprintf(m_filename, totalLen, "%s%s", m_external_storage, TEST_FILENAME); |
| 60 | |
| 61 | ::unlink(m_filename); |
| 62 | int fd = ::open(m_filename, O_CREAT | O_TRUNC, S_IRUSR | S_IWUSR); |
| 63 | if (fd < 0) { |
| 64 | FAIL() << "Couldn't create " << m_filename << " for writing"; |
| 65 | } |
| 66 | mKey1 = String8(KEY1); |
| 67 | mKey2 = String8(KEY2); |
| 68 | mKey3 = String8(KEY3); |
| 69 | mKey4 = String8(KEY4); |
| 70 | } |
| 71 | |
| 72 | virtual void TearDown() { |
| 73 | } |
| 74 | }; |
| 75 | |
| 76 | TEST_F(BackupDataTest, WriteAndReadSingle) { |
| 77 | int fd = ::open(m_filename, O_WRONLY); |
| 78 | BackupDataWriter* writer = new BackupDataWriter(fd); |
| 79 | |
| 80 | EXPECT_EQ(NO_ERROR, writer->WriteEntityHeader(mKey1, sizeof(DATA1))) |
| 81 | << "WriteEntityHeader returned an error"; |
| 82 | EXPECT_EQ(NO_ERROR, writer->WriteEntityData(DATA1, sizeof(DATA1))) |
| 83 | << "WriteEntityData returned an error"; |
| 84 | |
| 85 | ::close(fd); |
| 86 | fd = ::open(m_filename, O_RDONLY); |
| 87 | BackupDataReader* reader = new BackupDataReader(fd); |
| 88 | EXPECT_EQ(NO_ERROR, reader->Status()) |
| 89 | << "Reader ctor failed"; |
| 90 | |
| 91 | bool done; |
| 92 | int type; |
| 93 | reader->ReadNextHeader(&done, &type); |
| 94 | EXPECT_EQ(BACKUP_HEADER_ENTITY_V1, type) |
| 95 | << "wrong type from ReadNextHeader"; |
| 96 | |
| 97 | String8 key; |
| 98 | size_t dataSize; |
| 99 | EXPECT_EQ(NO_ERROR, reader->ReadEntityHeader(&key, &dataSize)) |
| 100 | << "ReadEntityHeader returned an error"; |
| 101 | EXPECT_EQ(mKey1, key) |
| 102 | << "wrong key from ReadEntityHeader"; |
| 103 | EXPECT_EQ(sizeof(DATA1), dataSize) |
| 104 | << "wrong size from ReadEntityHeader"; |
| 105 | |
| 106 | char* dataBytes = new char[dataSize]; |
| 107 | EXPECT_EQ((int) dataSize, reader->ReadEntityData(dataBytes, dataSize)) |
| 108 | << "ReadEntityData returned an error"; |
| 109 | for (unsigned int i = 0; i < sizeof(DATA1); i++) { |
| 110 | EXPECT_EQ(DATA1[i], dataBytes[i]) |
| 111 | << "data character " << i << " should be equal"; |
| 112 | } |
| 113 | delete dataBytes; |
| 114 | delete writer; |
| 115 | delete reader; |
| 116 | } |
| 117 | |
| 118 | TEST_F(BackupDataTest, WriteAndReadMultiple) { |
| 119 | int fd = ::open(m_filename, O_WRONLY); |
| 120 | BackupDataWriter* writer = new BackupDataWriter(fd); |
| 121 | writer->WriteEntityHeader(mKey1, sizeof(DATA1)); |
| 122 | writer->WriteEntityData(DATA1, sizeof(DATA1)); |
| 123 | writer->WriteEntityHeader(mKey2, sizeof(DATA2)); |
| 124 | writer->WriteEntityData(DATA2, sizeof(DATA2)); |
| 125 | |
| 126 | ::close(fd); |
| 127 | fd = ::open(m_filename, O_RDONLY); |
| 128 | BackupDataReader* reader = new BackupDataReader(fd); |
| 129 | |
| 130 | bool done; |
| 131 | int type; |
| 132 | String8 key; |
| 133 | size_t dataSize; |
| 134 | char* dataBytes; |
| 135 | // read first entity |
| 136 | reader->ReadNextHeader(&done, &type); |
| 137 | reader->ReadEntityHeader(&key, &dataSize); |
| 138 | dataBytes = new char[dataSize]; |
| 139 | reader->ReadEntityData(dataBytes, dataSize); |
| 140 | delete dataBytes; |
| 141 | |
| 142 | // read and verify second entity |
| 143 | reader->ReadNextHeader(&done, &type); |
| 144 | EXPECT_EQ(BACKUP_HEADER_ENTITY_V1, type) |
| 145 | << "wrong type from ReadNextHeader"; |
| 146 | |
| 147 | EXPECT_EQ(NO_ERROR, reader->ReadEntityHeader(&key, &dataSize)) |
| 148 | << "ReadEntityHeader returned an error on second entity"; |
| 149 | EXPECT_EQ(mKey2, key) |
| 150 | << "wrong key from ReadEntityHeader on second entity"; |
| 151 | EXPECT_EQ(sizeof(DATA2), dataSize) |
| 152 | << "wrong size from ReadEntityHeader on second entity"; |
| 153 | |
| 154 | dataBytes = new char[dataSize]; |
| 155 | EXPECT_EQ((int)dataSize, reader->ReadEntityData(dataBytes, dataSize)) |
| 156 | << "ReadEntityData returned an error on second entity"; |
| 157 | for (unsigned int i = 0; i < sizeof(DATA2); i++) { |
| 158 | EXPECT_EQ(DATA2[i], dataBytes[i]) |
| 159 | << "data character " << i << " should be equal"; |
| 160 | } |
| 161 | delete dataBytes; |
| 162 | delete writer; |
| 163 | delete reader; |
| 164 | } |
| 165 | |
| 166 | TEST_F(BackupDataTest, SkipEntity) { |
| 167 | int fd = ::open(m_filename, O_WRONLY); |
| 168 | BackupDataWriter* writer = new BackupDataWriter(fd); |
| 169 | writer->WriteEntityHeader(mKey1, sizeof(DATA1)); |
| 170 | writer->WriteEntityData(DATA1, sizeof(DATA1)); |
| 171 | writer->WriteEntityHeader(mKey2, sizeof(DATA2)); |
| 172 | writer->WriteEntityData(DATA2, sizeof(DATA2)); |
| 173 | writer->WriteEntityHeader(mKey3, sizeof(DATA3)); |
| 174 | writer->WriteEntityData(DATA3, sizeof(DATA3)); |
| 175 | |
| 176 | ::close(fd); |
| 177 | fd = ::open(m_filename, O_RDONLY); |
| 178 | BackupDataReader* reader = new BackupDataReader(fd); |
| 179 | |
| 180 | bool done; |
| 181 | int type; |
| 182 | String8 key; |
| 183 | size_t dataSize; |
| 184 | char* dataBytes; |
| 185 | // read first entity |
| 186 | reader->ReadNextHeader(&done, &type); |
| 187 | reader->ReadEntityHeader(&key, &dataSize); |
| 188 | dataBytes = new char[dataSize]; |
| 189 | reader->ReadEntityData(dataBytes, dataSize); |
| 190 | delete dataBytes; |
| 191 | |
| 192 | // skip second entity |
| 193 | reader->ReadNextHeader(&done, &type); |
| 194 | reader->ReadEntityHeader(&key, &dataSize); |
| 195 | reader->SkipEntityData(); |
| 196 | |
| 197 | // read and verify third entity |
| 198 | reader->ReadNextHeader(&done, &type); |
| 199 | EXPECT_EQ(BACKUP_HEADER_ENTITY_V1, type) |
| 200 | << "wrong type from ReadNextHeader after skip"; |
| 201 | |
| 202 | EXPECT_EQ(NO_ERROR, reader->ReadEntityHeader(&key, &dataSize)) |
| 203 | << "ReadEntityHeader returned an error on third entity"; |
| 204 | EXPECT_EQ(mKey3, key) |
| 205 | << "wrong key from ReadEntityHeader on third entity"; |
| 206 | EXPECT_EQ(sizeof(DATA3), dataSize) |
| 207 | << "wrong size from ReadEntityHeader on third entity"; |
| 208 | |
| 209 | dataBytes = new char[dataSize]; |
| 210 | EXPECT_EQ((int) dataSize, reader->ReadEntityData(dataBytes, dataSize)) |
| 211 | << "ReadEntityData returned an error on third entity"; |
| 212 | for (unsigned int i = 0; i < sizeof(DATA3); i++) { |
| 213 | EXPECT_EQ(DATA3[i], dataBytes[i]) |
| 214 | << "data character " << i << " should be equal"; |
| 215 | } |
| 216 | delete dataBytes; |
| 217 | delete writer; |
| 218 | delete reader; |
| 219 | } |
| 220 | |
| 221 | TEST_F(BackupDataTest, DeleteEntity) { |
| 222 | int fd = ::open(m_filename, O_WRONLY); |
| 223 | BackupDataWriter* writer = new BackupDataWriter(fd); |
| 224 | writer->WriteEntityHeader(mKey1, sizeof(DATA1)); |
| 225 | writer->WriteEntityData(DATA1, sizeof(DATA1)); |
| 226 | writer->WriteEntityHeader(mKey2, -1); |
| 227 | |
| 228 | ::close(fd); |
| 229 | fd = ::open(m_filename, O_RDONLY); |
| 230 | BackupDataReader* reader = new BackupDataReader(fd); |
| 231 | |
| 232 | bool done; |
| 233 | int type; |
| 234 | String8 key; |
| 235 | size_t dataSize; |
| 236 | char* dataBytes; |
| 237 | // read first entity |
| 238 | reader->ReadNextHeader(&done, &type); |
| 239 | reader->ReadEntityHeader(&key, &dataSize); |
| 240 | dataBytes = new char[dataSize]; |
| 241 | reader->ReadEntityData(dataBytes, dataSize); |
| 242 | delete dataBytes; |
| 243 | |
| 244 | // read and verify deletion |
| 245 | reader->ReadNextHeader(&done, &type); |
| 246 | EXPECT_EQ(BACKUP_HEADER_ENTITY_V1, type) |
| 247 | << "wrong type from ReadNextHeader on deletion"; |
| 248 | |
| 249 | EXPECT_EQ(NO_ERROR, reader->ReadEntityHeader(&key, &dataSize)) |
| 250 | << "ReadEntityHeader returned an error on second entity"; |
| 251 | EXPECT_EQ(mKey2, key) |
| 252 | << "wrong key from ReadEntityHeader on second entity"; |
| 253 | EXPECT_EQ(-1, (int) dataSize) |
| 254 | << "not recognizing deletion on second entity"; |
| 255 | |
| 256 | delete writer; |
| 257 | delete reader; |
| 258 | } |
| 259 | |
| 260 | TEST_F(BackupDataTest, EneityAfterDelete) { |
| 261 | int fd = ::open(m_filename, O_WRONLY); |
| 262 | BackupDataWriter* writer = new BackupDataWriter(fd); |
| 263 | writer->WriteEntityHeader(mKey1, sizeof(DATA1)); |
| 264 | writer->WriteEntityData(DATA1, sizeof(DATA1)); |
| 265 | writer->WriteEntityHeader(mKey2, -1); |
| 266 | writer->WriteEntityHeader(mKey3, sizeof(DATA3)); |
| 267 | writer->WriteEntityData(DATA3, sizeof(DATA3)); |
| 268 | |
| 269 | ::close(fd); |
| 270 | fd = ::open(m_filename, O_RDONLY); |
| 271 | BackupDataReader* reader = new BackupDataReader(fd); |
| 272 | |
| 273 | bool done; |
| 274 | int type; |
| 275 | String8 key; |
| 276 | size_t dataSize; |
| 277 | char* dataBytes; |
| 278 | // read first entity |
| 279 | reader->ReadNextHeader(&done, &type); |
| 280 | reader->ReadEntityHeader(&key, &dataSize); |
| 281 | dataBytes = new char[dataSize]; |
| 282 | reader->ReadEntityData(dataBytes, dataSize); |
| 283 | delete dataBytes; |
| 284 | |
| 285 | // read and verify deletion |
| 286 | reader->ReadNextHeader(&done, &type); |
| 287 | EXPECT_EQ(BACKUP_HEADER_ENTITY_V1, type) |
| 288 | << "wrong type from ReadNextHeader on deletion"; |
| 289 | |
| 290 | EXPECT_EQ(NO_ERROR, reader->ReadEntityHeader(&key, &dataSize)) |
| 291 | << "ReadEntityHeader returned an error on second entity"; |
| 292 | EXPECT_EQ(mKey2, key) |
| 293 | << "wrong key from ReadEntityHeader on second entity"; |
| 294 | EXPECT_EQ(-1, (int)dataSize) |
| 295 | << "not recognizing deletion on second entity"; |
| 296 | |
| 297 | // read and verify third entity |
| 298 | reader->ReadNextHeader(&done, &type); |
| 299 | EXPECT_EQ(BACKUP_HEADER_ENTITY_V1, type) |
| 300 | << "wrong type from ReadNextHeader after deletion"; |
| 301 | |
| 302 | EXPECT_EQ(NO_ERROR, reader->ReadEntityHeader(&key, &dataSize)) |
| 303 | << "ReadEntityHeader returned an error on third entity"; |
| 304 | EXPECT_EQ(mKey3, key) |
| 305 | << "wrong key from ReadEntityHeader on third entity"; |
| 306 | EXPECT_EQ(sizeof(DATA3), dataSize) |
| 307 | << "wrong size from ReadEntityHeader on third entity"; |
| 308 | |
| 309 | dataBytes = new char[dataSize]; |
| 310 | EXPECT_EQ((int) dataSize, reader->ReadEntityData(dataBytes, dataSize)) |
| 311 | << "ReadEntityData returned an error on third entity"; |
| 312 | for (unsigned int i = 0; i < sizeof(DATA3); i++) { |
| 313 | EXPECT_EQ(DATA3[i], dataBytes[i]) |
| 314 | << "data character " << i << " should be equal"; |
| 315 | } |
| 316 | delete dataBytes; |
| 317 | delete writer; |
| 318 | delete reader; |
| 319 | } |
| 320 | |
| 321 | TEST_F(BackupDataTest, OnlyDeleteEntities) { |
| 322 | int fd = ::open(m_filename, O_WRONLY); |
| 323 | BackupDataWriter* writer = new BackupDataWriter(fd); |
| 324 | writer->WriteEntityHeader(mKey1, -1); |
| 325 | writer->WriteEntityHeader(mKey2, -1); |
| 326 | writer->WriteEntityHeader(mKey3, -1); |
| 327 | writer->WriteEntityHeader(mKey4, -1); |
| 328 | |
| 329 | ::close(fd); |
| 330 | fd = ::open(m_filename, O_RDONLY); |
| 331 | BackupDataReader* reader = new BackupDataReader(fd); |
| 332 | |
| 333 | bool done; |
| 334 | int type; |
| 335 | String8 key; |
| 336 | size_t dataSize; |
| 337 | // read and verify first deletion |
| 338 | reader->ReadNextHeader(&done, &type); |
| 339 | EXPECT_EQ(BACKUP_HEADER_ENTITY_V1, type) |
| 340 | << "wrong type from ReadNextHeader first deletion"; |
| 341 | |
| 342 | EXPECT_EQ(NO_ERROR, reader->ReadEntityHeader(&key, &dataSize)) |
| 343 | << "ReadEntityHeader returned an error on first entity"; |
| 344 | EXPECT_EQ(mKey1, key) |
| 345 | << "wrong key from ReadEntityHeader on first entity"; |
| 346 | EXPECT_EQ(-1, (int) dataSize) |
| 347 | << "not recognizing deletion on first entity"; |
| 348 | |
| 349 | // read and verify second deletion |
| 350 | reader->ReadNextHeader(&done, &type); |
| 351 | EXPECT_EQ(BACKUP_HEADER_ENTITY_V1, type) |
| 352 | << "wrong type from ReadNextHeader second deletion"; |
| 353 | |
| 354 | EXPECT_EQ(NO_ERROR, reader->ReadEntityHeader(&key, &dataSize)) |
| 355 | << "ReadEntityHeader returned an error on second entity"; |
| 356 | EXPECT_EQ(mKey2, key) |
| 357 | << "wrong key from ReadEntityHeader on second entity"; |
| 358 | EXPECT_EQ(-1, (int) dataSize) |
| 359 | << "not recognizing deletion on second entity"; |
| 360 | |
| 361 | // read and verify third deletion |
| 362 | reader->ReadNextHeader(&done, &type); |
| 363 | EXPECT_EQ(BACKUP_HEADER_ENTITY_V1, type) |
| 364 | << "wrong type from ReadNextHeader third deletion"; |
| 365 | |
| 366 | EXPECT_EQ(NO_ERROR, reader->ReadEntityHeader(&key, &dataSize)) |
| 367 | << "ReadEntityHeader returned an error on third entity"; |
| 368 | EXPECT_EQ(mKey3, key) |
| 369 | << "wrong key from ReadEntityHeader on third entity"; |
| 370 | EXPECT_EQ(-1, (int) dataSize) |
| 371 | << "not recognizing deletion on third entity"; |
| 372 | |
| 373 | // read and verify fourth deletion |
| 374 | reader->ReadNextHeader(&done, &type); |
| 375 | EXPECT_EQ(BACKUP_HEADER_ENTITY_V1, type) |
| 376 | << "wrong type from ReadNextHeader fourth deletion"; |
| 377 | |
| 378 | EXPECT_EQ(NO_ERROR, reader->ReadEntityHeader(&key, &dataSize)) |
| 379 | << "ReadEntityHeader returned an error on fourth entity"; |
| 380 | EXPECT_EQ(mKey4, key) |
| 381 | << "wrong key from ReadEntityHeader on fourth entity"; |
| 382 | EXPECT_EQ(-1, (int) dataSize) |
| 383 | << "not recognizing deletion on fourth entity"; |
| 384 | |
| 385 | delete writer; |
| 386 | delete reader; |
| 387 | } |
| 388 | |
| 389 | TEST_F(BackupDataTest, ReadDeletedEntityData) { |
| 390 | int fd = ::open(m_filename, O_WRONLY); |
| 391 | BackupDataWriter* writer = new BackupDataWriter(fd); |
| 392 | writer->WriteEntityHeader(mKey1, -1); |
| 393 | writer->WriteEntityHeader(mKey2, -1); |
| 394 | |
| 395 | ::close(fd); |
| 396 | fd = ::open(m_filename, O_RDONLY); |
| 397 | BackupDataReader* reader = new BackupDataReader(fd); |
| 398 | |
| 399 | bool done; |
| 400 | int type; |
| 401 | String8 key; |
| 402 | size_t dataSize; |
| 403 | // read and verify first deletion |
| 404 | reader->ReadNextHeader(&done, &type); |
| 405 | EXPECT_EQ(BACKUP_HEADER_ENTITY_V1, type) |
| 406 | << "wrong type from ReadNextHeader first deletion"; |
| 407 | |
| 408 | EXPECT_EQ(NO_ERROR, reader->ReadEntityHeader(&key, &dataSize)) |
| 409 | << "ReadEntityHeader returned an error on first entity"; |
| 410 | EXPECT_EQ(mKey1, key) |
| 411 | << "wrong key from ReadEntityHeader on first entity"; |
| 412 | EXPECT_EQ(-1, (int) dataSize) |
| 413 | << "not recognizing deletion on first entity"; |
| 414 | |
| 415 | // erroneously try to read first entity data |
| 416 | char* dataBytes = new char[10]; |
| 417 | dataBytes[0] = 'A'; |
| 418 | EXPECT_EQ(NO_ERROR, reader->ReadEntityData(dataBytes, dataSize)); |
| 419 | // expect dataBytes to be unmodofied |
| 420 | EXPECT_EQ('A', dataBytes[0]); |
| 421 | |
| 422 | // read and verify second deletion |
| 423 | reader->ReadNextHeader(&done, &type); |
| 424 | EXPECT_EQ(BACKUP_HEADER_ENTITY_V1, type) |
| 425 | << "wrong type from ReadNextHeader second deletion"; |
| 426 | |
| 427 | EXPECT_EQ(NO_ERROR, reader->ReadEntityHeader(&key, &dataSize)) |
| 428 | << "ReadEntityHeader returned an error on second entity"; |
| 429 | EXPECT_EQ(mKey2, key) |
| 430 | << "wrong key from ReadEntityHeader on second entity"; |
| 431 | EXPECT_EQ(-1, (int) dataSize) |
| 432 | << "not recognizing deletion on second entity"; |
| 433 | |
| 434 | delete writer; |
| 435 | delete reader; |
| 436 | } |
| 437 | |
| 438 | } |