1 //===- llvm/unittest/Support/Path.cpp - Path tests ------------------------===// 2 // 3 // The LLVM Compiler Infrastructure 4 // 5 // This file is distributed under the University of Illinois Open Source 6 // License. See LICENSE.TXT for details. 7 // 8 //===----------------------------------------------------------------------===// 9 10 #include "llvm/Support/Path.h" 11 #include "llvm/Support/ConvertUTF.h" 12 #include "llvm/Support/Errc.h" 13 #include "llvm/Support/ErrorHandling.h" 14 #include "llvm/Support/FileSystem.h" 15 #include "llvm/Support/MemoryBuffer.h" 16 #include "llvm/Support/raw_ostream.h" 17 #include "gtest/gtest.h" 18 19 #ifdef LLVM_ON_WIN32 20 #include "llvm/ADT/ArrayRef.h" 21 #include <windows.h> 22 #include <winerror.h> 23 #endif 24 25 #ifdef LLVM_ON_UNIX 26 #include <sys/stat.h> 27 #endif 28 29 using namespace llvm; 30 using namespace llvm::sys; 31 32 #define ASSERT_NO_ERROR(x) \ 33 if (std::error_code ASSERT_NO_ERROR_ec = x) { \ 34 SmallString<128> MessageStorage; \ 35 raw_svector_ostream Message(MessageStorage); \ 36 Message << #x ": did not return errc::success.\n" \ 37 << "error number: " << ASSERT_NO_ERROR_ec.value() << "\n" \ 38 << "error message: " << ASSERT_NO_ERROR_ec.message() << "\n"; \ 39 GTEST_FATAL_FAILURE_(MessageStorage.c_str()); \ 40 } else { \ 41 } 42 43 namespace { 44 45 TEST(is_separator, Works) { 46 EXPECT_TRUE(path::is_separator('/')); 47 EXPECT_FALSE(path::is_separator('\0')); 48 EXPECT_FALSE(path::is_separator('-')); 49 EXPECT_FALSE(path::is_separator(' ')); 50 51 #ifdef LLVM_ON_WIN32 52 EXPECT_TRUE(path::is_separator('\\')); 53 #else 54 EXPECT_FALSE(path::is_separator('\\')); 55 #endif 56 } 57 58 TEST(Support, Path) { 59 SmallVector<StringRef, 40> paths; 60 paths.push_back(""); 61 paths.push_back("."); 62 paths.push_back(".."); 63 paths.push_back("foo"); 64 paths.push_back("/"); 65 paths.push_back("/foo"); 66 paths.push_back("foo/"); 67 paths.push_back("/foo/"); 68 paths.push_back("foo/bar"); 69 paths.push_back("/foo/bar"); 70 paths.push_back("//net"); 71 paths.push_back("//net/foo"); 72 paths.push_back("///foo///"); 73 paths.push_back("///foo///bar"); 74 paths.push_back("/."); 75 paths.push_back("./"); 76 paths.push_back("/.."); 77 paths.push_back("../"); 78 paths.push_back("foo/."); 79 paths.push_back("foo/.."); 80 paths.push_back("foo/./"); 81 paths.push_back("foo/./bar"); 82 paths.push_back("foo/.."); 83 paths.push_back("foo/../"); 84 paths.push_back("foo/../bar"); 85 paths.push_back("c:"); 86 paths.push_back("c:/"); 87 paths.push_back("c:foo"); 88 paths.push_back("c:/foo"); 89 paths.push_back("c:foo/"); 90 paths.push_back("c:/foo/"); 91 paths.push_back("c:/foo/bar"); 92 paths.push_back("prn:"); 93 paths.push_back("c:\\"); 94 paths.push_back("c:foo"); 95 paths.push_back("c:\\foo"); 96 paths.push_back("c:foo\\"); 97 paths.push_back("c:\\foo\\"); 98 paths.push_back("c:\\foo/"); 99 paths.push_back("c:/foo\\bar"); 100 101 SmallVector<StringRef, 5> ComponentStack; 102 for (SmallVector<StringRef, 40>::const_iterator i = paths.begin(), 103 e = paths.end(); 104 i != e; 105 ++i) { 106 for (sys::path::const_iterator ci = sys::path::begin(*i), 107 ce = sys::path::end(*i); 108 ci != ce; 109 ++ci) { 110 ASSERT_FALSE(ci->empty()); 111 ComponentStack.push_back(*ci); 112 } 113 114 for (sys::path::reverse_iterator ci = sys::path::rbegin(*i), 115 ce = sys::path::rend(*i); 116 ci != ce; 117 ++ci) { 118 ASSERT_TRUE(*ci == ComponentStack.back()); 119 ComponentStack.pop_back(); 120 } 121 ASSERT_TRUE(ComponentStack.empty()); 122 123 path::has_root_path(*i); 124 path::root_path(*i); 125 path::has_root_name(*i); 126 path::root_name(*i); 127 path::has_root_directory(*i); 128 path::root_directory(*i); 129 path::has_parent_path(*i); 130 path::parent_path(*i); 131 path::has_filename(*i); 132 path::filename(*i); 133 path::has_stem(*i); 134 path::stem(*i); 135 path::has_extension(*i); 136 path::extension(*i); 137 path::is_absolute(*i); 138 path::is_relative(*i); 139 140 SmallString<128> temp_store; 141 temp_store = *i; 142 ASSERT_NO_ERROR(fs::make_absolute(temp_store)); 143 temp_store = *i; 144 path::remove_filename(temp_store); 145 146 temp_store = *i; 147 path::replace_extension(temp_store, "ext"); 148 StringRef filename(temp_store.begin(), temp_store.size()), stem, ext; 149 stem = path::stem(filename); 150 ext = path::extension(filename); 151 EXPECT_EQ(*sys::path::rbegin(filename), (stem + ext).str()); 152 153 path::native(*i, temp_store); 154 } 155 156 SmallString<32> Relative("foo.cpp"); 157 ASSERT_NO_ERROR(sys::fs::make_absolute("/root", Relative)); 158 Relative[5] = '/'; // Fix up windows paths. 159 ASSERT_EQ("/root/foo.cpp", Relative); 160 } 161 162 TEST(Support, RelativePathIterator) { 163 SmallString<64> Path(StringRef("c/d/e/foo.txt")); 164 typedef SmallVector<StringRef, 4> PathComponents; 165 PathComponents ExpectedPathComponents; 166 PathComponents ActualPathComponents; 167 168 StringRef(Path).split(ExpectedPathComponents, '/'); 169 170 for (path::const_iterator I = path::begin(Path), E = path::end(Path); I != E; 171 ++I) { 172 ActualPathComponents.push_back(*I); 173 } 174 175 ASSERT_EQ(ExpectedPathComponents.size(), ActualPathComponents.size()); 176 177 for (size_t i = 0; i <ExpectedPathComponents.size(); ++i) { 178 EXPECT_EQ(ExpectedPathComponents[i].str(), ActualPathComponents[i].str()); 179 } 180 } 181 182 TEST(Support, RelativePathDotIterator) { 183 SmallString<64> Path(StringRef(".c/.d/../.")); 184 typedef SmallVector<StringRef, 4> PathComponents; 185 PathComponents ExpectedPathComponents; 186 PathComponents ActualPathComponents; 187 188 StringRef(Path).split(ExpectedPathComponents, '/'); 189 190 for (path::const_iterator I = path::begin(Path), E = path::end(Path); I != E; 191 ++I) { 192 ActualPathComponents.push_back(*I); 193 } 194 195 ASSERT_EQ(ExpectedPathComponents.size(), ActualPathComponents.size()); 196 197 for (size_t i = 0; i <ExpectedPathComponents.size(); ++i) { 198 EXPECT_EQ(ExpectedPathComponents[i].str(), ActualPathComponents[i].str()); 199 } 200 } 201 202 TEST(Support, AbsolutePathIterator) { 203 SmallString<64> Path(StringRef("/c/d/e/foo.txt")); 204 typedef SmallVector<StringRef, 4> PathComponents; 205 PathComponents ExpectedPathComponents; 206 PathComponents ActualPathComponents; 207 208 StringRef(Path).split(ExpectedPathComponents, '/'); 209 210 // The root path will also be a component when iterating 211 ExpectedPathComponents[0] = "/"; 212 213 for (path::const_iterator I = path::begin(Path), E = path::end(Path); I != E; 214 ++I) { 215 ActualPathComponents.push_back(*I); 216 } 217 218 ASSERT_EQ(ExpectedPathComponents.size(), ActualPathComponents.size()); 219 220 for (size_t i = 0; i <ExpectedPathComponents.size(); ++i) { 221 EXPECT_EQ(ExpectedPathComponents[i].str(), ActualPathComponents[i].str()); 222 } 223 } 224 225 TEST(Support, AbsolutePathDotIterator) { 226 SmallString<64> Path(StringRef("/.c/.d/../.")); 227 typedef SmallVector<StringRef, 4> PathComponents; 228 PathComponents ExpectedPathComponents; 229 PathComponents ActualPathComponents; 230 231 StringRef(Path).split(ExpectedPathComponents, '/'); 232 233 // The root path will also be a component when iterating 234 ExpectedPathComponents[0] = "/"; 235 236 for (path::const_iterator I = path::begin(Path), E = path::end(Path); I != E; 237 ++I) { 238 ActualPathComponents.push_back(*I); 239 } 240 241 ASSERT_EQ(ExpectedPathComponents.size(), ActualPathComponents.size()); 242 243 for (size_t i = 0; i <ExpectedPathComponents.size(); ++i) { 244 EXPECT_EQ(ExpectedPathComponents[i].str(), ActualPathComponents[i].str()); 245 } 246 } 247 248 #ifdef LLVM_ON_WIN32 249 TEST(Support, AbsolutePathIteratorWin32) { 250 SmallString<64> Path(StringRef("c:\\c\\e\\foo.txt")); 251 typedef SmallVector<StringRef, 4> PathComponents; 252 PathComponents ExpectedPathComponents; 253 PathComponents ActualPathComponents; 254 255 StringRef(Path).split(ExpectedPathComponents, "\\"); 256 257 // The root path (which comes after the drive name) will also be a component 258 // when iterating. 259 ExpectedPathComponents.insert(ExpectedPathComponents.begin()+1, "\\"); 260 261 for (path::const_iterator I = path::begin(Path), E = path::end(Path); I != E; 262 ++I) { 263 ActualPathComponents.push_back(*I); 264 } 265 266 ASSERT_EQ(ExpectedPathComponents.size(), ActualPathComponents.size()); 267 268 for (size_t i = 0; i <ExpectedPathComponents.size(); ++i) { 269 EXPECT_EQ(ExpectedPathComponents[i].str(), ActualPathComponents[i].str()); 270 } 271 } 272 #endif // LLVM_ON_WIN32 273 274 TEST(Support, AbsolutePathIteratorEnd) { 275 // Trailing slashes are converted to '.' unless they are part of the root path. 276 SmallVector<StringRef, 4> Paths; 277 Paths.push_back("/foo/"); 278 Paths.push_back("/foo//"); 279 Paths.push_back("//net//"); 280 #ifdef LLVM_ON_WIN32 281 Paths.push_back("c:\\\\"); 282 #endif 283 284 for (StringRef Path : Paths) { 285 StringRef LastComponent = *path::rbegin(Path); 286 EXPECT_EQ(".", LastComponent); 287 } 288 289 SmallVector<StringRef, 3> RootPaths; 290 RootPaths.push_back("/"); 291 RootPaths.push_back("//net/"); 292 #ifdef LLVM_ON_WIN32 293 RootPaths.push_back("c:\\"); 294 #endif 295 296 for (StringRef Path : RootPaths) { 297 StringRef LastComponent = *path::rbegin(Path); 298 EXPECT_EQ(1u, LastComponent.size()); 299 EXPECT_TRUE(path::is_separator(LastComponent[0])); 300 } 301 } 302 303 TEST(Support, HomeDirectory) { 304 std::string expected; 305 #ifdef LLVM_ON_WIN32 306 if (wchar_t const *path = ::_wgetenv(L"USERPROFILE")) { 307 auto pathLen = ::wcslen(path); 308 ArrayRef<char> ref{reinterpret_cast<char const *>(path), 309 pathLen * sizeof(wchar_t)}; 310 convertUTF16ToUTF8String(ref, expected); 311 } 312 #else 313 if (char const *path = ::getenv("HOME")) 314 expected = path; 315 #endif 316 // Do not try to test it if we don't know what to expect. 317 // On Windows we use something better than env vars. 318 if (!expected.empty()) { 319 SmallString<128> HomeDir; 320 auto status = path::home_directory(HomeDir); 321 EXPECT_TRUE(status); 322 EXPECT_EQ(expected, HomeDir); 323 } 324 } 325 326 TEST(Support, UserCacheDirectory) { 327 SmallString<13> CacheDir; 328 SmallString<20> CacheDir2; 329 auto Status = path::user_cache_directory(CacheDir, ""); 330 EXPECT_TRUE(Status ^ CacheDir.empty()); 331 332 if (Status) { 333 EXPECT_TRUE(path::user_cache_directory(CacheDir2, "")); // should succeed 334 EXPECT_EQ(CacheDir, CacheDir2); // and return same paths 335 336 EXPECT_TRUE(path::user_cache_directory(CacheDir, "A", "B", "file.c")); 337 auto It = path::rbegin(CacheDir); 338 EXPECT_EQ("file.c", *It); 339 EXPECT_EQ("B", *++It); 340 EXPECT_EQ("A", *++It); 341 auto ParentDir = *++It; 342 343 // Test Unicode: "<user_cache_dir>/(pi)r^2/aleth.0" 344 EXPECT_TRUE(path::user_cache_directory(CacheDir2, "\xCF\x80r\xC2\xB2", 345 "\xE2\x84\xB5.0")); 346 auto It2 = path::rbegin(CacheDir2); 347 EXPECT_EQ("\xE2\x84\xB5.0", *It2); 348 EXPECT_EQ("\xCF\x80r\xC2\xB2", *++It2); 349 auto ParentDir2 = *++It2; 350 351 EXPECT_EQ(ParentDir, ParentDir2); 352 } 353 } 354 355 TEST(Support, TempDirectory) { 356 SmallString<32> TempDir; 357 path::system_temp_directory(false, TempDir); 358 EXPECT_TRUE(!TempDir.empty()); 359 TempDir.clear(); 360 path::system_temp_directory(true, TempDir); 361 EXPECT_TRUE(!TempDir.empty()); 362 } 363 364 #ifdef LLVM_ON_WIN32 365 static std::string path2regex(std::string Path) { 366 size_t Pos = 0; 367 while ((Pos = Path.find('\\', Pos)) != std::string::npos) { 368 Path.replace(Pos, 1, "\\\\"); 369 Pos += 2; 370 } 371 return Path; 372 } 373 374 /// Helper for running temp dir test in separated process. See below. 375 #define EXPECT_TEMP_DIR(prepare, expected) \ 376 EXPECT_EXIT( \ 377 { \ 378 prepare; \ 379 SmallString<300> TempDir; \ 380 path::system_temp_directory(true, TempDir); \ 381 raw_os_ostream(std::cerr) << TempDir; \ 382 std::exit(0); \ 383 }, \ 384 ::testing::ExitedWithCode(0), path2regex(expected)) 385 386 TEST(SupportDeathTest, TempDirectoryOnWindows) { 387 // In this test we want to check how system_temp_directory responds to 388 // different values of specific env vars. To prevent corrupting env vars of 389 // the current process all checks are done in separated processes. 390 EXPECT_TEMP_DIR(_wputenv_s(L"TMP", L"C:\\OtherFolder"), "C:\\OtherFolder"); 391 EXPECT_TEMP_DIR(_wputenv_s(L"TMP", L"C:/Unix/Path/Seperators"), 392 "C:\\Unix\\Path\\Seperators"); 393 EXPECT_TEMP_DIR(_wputenv_s(L"TMP", L"Local Path"), ".+\\Local Path$"); 394 EXPECT_TEMP_DIR(_wputenv_s(L"TMP", L"F:\\TrailingSep\\"), "F:\\TrailingSep"); 395 EXPECT_TEMP_DIR( 396 _wputenv_s(L"TMP", L"C:\\2\x03C0r-\x00B5\x00B3\\\x2135\x2080"), 397 "C:\\2\xCF\x80r-\xC2\xB5\xC2\xB3\\\xE2\x84\xB5\xE2\x82\x80"); 398 399 // Test $TMP empty, $TEMP set. 400 EXPECT_TEMP_DIR( 401 { 402 _wputenv_s(L"TMP", L""); 403 _wputenv_s(L"TEMP", L"C:\\Valid\\Path"); 404 }, 405 "C:\\Valid\\Path"); 406 407 // All related env vars empty 408 EXPECT_TEMP_DIR( 409 { 410 _wputenv_s(L"TMP", L""); 411 _wputenv_s(L"TEMP", L""); 412 _wputenv_s(L"USERPROFILE", L""); 413 }, 414 "C:\\Temp"); 415 416 // Test evn var / path with 260 chars. 417 SmallString<270> Expected{"C:\\Temp\\AB\\123456789"}; 418 while (Expected.size() < 260) 419 Expected.append("\\DirNameWith19Charss"); 420 ASSERT_EQ(260U, Expected.size()); 421 EXPECT_TEMP_DIR(_putenv_s("TMP", Expected.c_str()), Expected.c_str()); 422 } 423 #endif 424 425 class FileSystemTest : public testing::Test { 426 protected: 427 /// Unique temporary directory in which all created filesystem entities must 428 /// be placed. It is removed at the end of each test (must be empty). 429 SmallString<128> TestDirectory; 430 431 void SetUp() override { 432 ASSERT_NO_ERROR( 433 fs::createUniqueDirectory("file-system-test", TestDirectory)); 434 // We don't care about this specific file. 435 errs() << "Test Directory: " << TestDirectory << '\n'; 436 errs().flush(); 437 } 438 439 void TearDown() override { ASSERT_NO_ERROR(fs::remove(TestDirectory.str())); } 440 }; 441 442 TEST_F(FileSystemTest, Unique) { 443 // Create a temp file. 444 int FileDescriptor; 445 SmallString<64> TempPath; 446 ASSERT_NO_ERROR( 447 fs::createTemporaryFile("prefix", "temp", FileDescriptor, TempPath)); 448 449 // The same file should return an identical unique id. 450 fs::UniqueID F1, F2; 451 ASSERT_NO_ERROR(fs::getUniqueID(Twine(TempPath), F1)); 452 ASSERT_NO_ERROR(fs::getUniqueID(Twine(TempPath), F2)); 453 ASSERT_EQ(F1, F2); 454 455 // Different files should return different unique ids. 456 int FileDescriptor2; 457 SmallString<64> TempPath2; 458 ASSERT_NO_ERROR( 459 fs::createTemporaryFile("prefix", "temp", FileDescriptor2, TempPath2)); 460 461 fs::UniqueID D; 462 ASSERT_NO_ERROR(fs::getUniqueID(Twine(TempPath2), D)); 463 ASSERT_NE(D, F1); 464 ::close(FileDescriptor2); 465 466 ASSERT_NO_ERROR(fs::remove(Twine(TempPath2))); 467 468 // Two paths representing the same file on disk should still provide the 469 // same unique id. We can test this by making a hard link. 470 ASSERT_NO_ERROR(fs::create_link(Twine(TempPath), Twine(TempPath2))); 471 fs::UniqueID D2; 472 ASSERT_NO_ERROR(fs::getUniqueID(Twine(TempPath2), D2)); 473 ASSERT_EQ(D2, F1); 474 475 ::close(FileDescriptor); 476 477 SmallString<128> Dir1; 478 ASSERT_NO_ERROR( 479 fs::createUniqueDirectory("dir1", Dir1)); 480 ASSERT_NO_ERROR(fs::getUniqueID(Dir1.c_str(), F1)); 481 ASSERT_NO_ERROR(fs::getUniqueID(Dir1.c_str(), F2)); 482 ASSERT_EQ(F1, F2); 483 484 SmallString<128> Dir2; 485 ASSERT_NO_ERROR( 486 fs::createUniqueDirectory("dir2", Dir2)); 487 ASSERT_NO_ERROR(fs::getUniqueID(Dir2.c_str(), F2)); 488 ASSERT_NE(F1, F2); 489 } 490 491 TEST_F(FileSystemTest, TempFiles) { 492 // Create a temp file. 493 int FileDescriptor; 494 SmallString<64> TempPath; 495 ASSERT_NO_ERROR( 496 fs::createTemporaryFile("prefix", "temp", FileDescriptor, TempPath)); 497 498 // Make sure it exists. 499 ASSERT_TRUE(sys::fs::exists(Twine(TempPath))); 500 501 // Create another temp tile. 502 int FD2; 503 SmallString<64> TempPath2; 504 ASSERT_NO_ERROR(fs::createTemporaryFile("prefix", "temp", FD2, TempPath2)); 505 ASSERT_TRUE(TempPath2.endswith(".temp")); 506 ASSERT_NE(TempPath.str(), TempPath2.str()); 507 508 fs::file_status A, B; 509 ASSERT_NO_ERROR(fs::status(Twine(TempPath), A)); 510 ASSERT_NO_ERROR(fs::status(Twine(TempPath2), B)); 511 EXPECT_FALSE(fs::equivalent(A, B)); 512 513 ::close(FD2); 514 515 // Remove Temp2. 516 ASSERT_NO_ERROR(fs::remove(Twine(TempPath2))); 517 ASSERT_NO_ERROR(fs::remove(Twine(TempPath2))); 518 ASSERT_EQ(fs::remove(Twine(TempPath2), false), 519 errc::no_such_file_or_directory); 520 521 std::error_code EC = fs::status(TempPath2.c_str(), B); 522 EXPECT_EQ(EC, errc::no_such_file_or_directory); 523 EXPECT_EQ(B.type(), fs::file_type::file_not_found); 524 525 // Make sure Temp2 doesn't exist. 526 ASSERT_EQ(fs::access(Twine(TempPath2), sys::fs::AccessMode::Exist), 527 errc::no_such_file_or_directory); 528 529 SmallString<64> TempPath3; 530 ASSERT_NO_ERROR(fs::createTemporaryFile("prefix", "", TempPath3)); 531 ASSERT_FALSE(TempPath3.endswith(".")); 532 533 // Create a hard link to Temp1. 534 ASSERT_NO_ERROR(fs::create_link(Twine(TempPath), Twine(TempPath2))); 535 bool equal; 536 ASSERT_NO_ERROR(fs::equivalent(Twine(TempPath), Twine(TempPath2), equal)); 537 EXPECT_TRUE(equal); 538 ASSERT_NO_ERROR(fs::status(Twine(TempPath), A)); 539 ASSERT_NO_ERROR(fs::status(Twine(TempPath2), B)); 540 EXPECT_TRUE(fs::equivalent(A, B)); 541 542 // Remove Temp1. 543 ::close(FileDescriptor); 544 ASSERT_NO_ERROR(fs::remove(Twine(TempPath))); 545 546 // Remove the hard link. 547 ASSERT_NO_ERROR(fs::remove(Twine(TempPath2))); 548 549 // Make sure Temp1 doesn't exist. 550 ASSERT_EQ(fs::access(Twine(TempPath), sys::fs::AccessMode::Exist), 551 errc::no_such_file_or_directory); 552 553 #ifdef LLVM_ON_WIN32 554 // Path name > 260 chars should get an error. 555 const char *Path270 = 556 "abcdefghijklmnopqrstuvwxyz9abcdefghijklmnopqrstuvwxyz8" 557 "abcdefghijklmnopqrstuvwxyz7abcdefghijklmnopqrstuvwxyz6" 558 "abcdefghijklmnopqrstuvwxyz5abcdefghijklmnopqrstuvwxyz4" 559 "abcdefghijklmnopqrstuvwxyz3abcdefghijklmnopqrstuvwxyz2" 560 "abcdefghijklmnopqrstuvwxyz1abcdefghijklmnopqrstuvwxyz0"; 561 EXPECT_EQ(fs::createUniqueFile(Path270, FileDescriptor, TempPath), 562 errc::invalid_argument); 563 // Relative path < 247 chars, no problem. 564 const char *Path216 = 565 "abcdefghijklmnopqrstuvwxyz7abcdefghijklmnopqrstuvwxyz6" 566 "abcdefghijklmnopqrstuvwxyz5abcdefghijklmnopqrstuvwxyz4" 567 "abcdefghijklmnopqrstuvwxyz3abcdefghijklmnopqrstuvwxyz2" 568 "abcdefghijklmnopqrstuvwxyz1abcdefghijklmnopqrstuvwxyz0"; 569 ASSERT_NO_ERROR(fs::createTemporaryFile(Path216, "", TempPath)); 570 ASSERT_NO_ERROR(fs::remove(Twine(TempPath))); 571 #endif 572 } 573 574 TEST_F(FileSystemTest, CreateDir) { 575 ASSERT_NO_ERROR(fs::create_directory(Twine(TestDirectory) + "foo")); 576 ASSERT_NO_ERROR(fs::create_directory(Twine(TestDirectory) + "foo")); 577 ASSERT_EQ(fs::create_directory(Twine(TestDirectory) + "foo", false), 578 errc::file_exists); 579 ASSERT_NO_ERROR(fs::remove(Twine(TestDirectory) + "foo")); 580 581 #ifdef LLVM_ON_UNIX 582 // Set a 0000 umask so that we can test our directory permissions. 583 mode_t OldUmask = ::umask(0000); 584 585 fs::file_status Status; 586 ASSERT_NO_ERROR( 587 fs::create_directory(Twine(TestDirectory) + "baz500", false, 588 fs::perms::owner_read | fs::perms::owner_exe)); 589 ASSERT_NO_ERROR(fs::status(Twine(TestDirectory) + "baz500", Status)); 590 ASSERT_EQ(Status.permissions() & fs::perms::all_all, 591 fs::perms::owner_read | fs::perms::owner_exe); 592 ASSERT_NO_ERROR(fs::create_directory(Twine(TestDirectory) + "baz777", false, 593 fs::perms::all_all)); 594 ASSERT_NO_ERROR(fs::status(Twine(TestDirectory) + "baz777", Status)); 595 ASSERT_EQ(Status.permissions() & fs::perms::all_all, fs::perms::all_all); 596 597 // Restore umask to be safe. 598 ::umask(OldUmask); 599 #endif 600 601 #ifdef LLVM_ON_WIN32 602 // Prove that create_directories() can handle a pathname > 248 characters, 603 // which is the documented limit for CreateDirectory(). 604 // (248 is MAX_PATH subtracting room for an 8.3 filename.) 605 // Generate a directory path guaranteed to fall into that range. 606 size_t TmpLen = TestDirectory.size(); 607 const char *OneDir = "\\123456789"; 608 size_t OneDirLen = strlen(OneDir); 609 ASSERT_LT(OneDirLen, 12U); 610 size_t NLevels = ((248 - TmpLen) / OneDirLen) + 1; 611 SmallString<260> LongDir(TestDirectory); 612 for (size_t I = 0; I < NLevels; ++I) 613 LongDir.append(OneDir); 614 ASSERT_NO_ERROR(fs::create_directories(Twine(LongDir))); 615 ASSERT_NO_ERROR(fs::create_directories(Twine(LongDir))); 616 ASSERT_EQ(fs::create_directories(Twine(LongDir), false), 617 errc::file_exists); 618 // Tidy up, "recursively" removing the directories. 619 StringRef ThisDir(LongDir); 620 for (size_t J = 0; J < NLevels; ++J) { 621 ASSERT_NO_ERROR(fs::remove(ThisDir)); 622 ThisDir = path::parent_path(ThisDir); 623 } 624 625 // Similarly for a relative pathname. Need to set the current directory to 626 // TestDirectory so that the one we create ends up in the right place. 627 char PreviousDir[260]; 628 size_t PreviousDirLen = ::GetCurrentDirectoryA(260, PreviousDir); 629 ASSERT_GT(PreviousDirLen, 0U); 630 ASSERT_LT(PreviousDirLen, 260U); 631 ASSERT_NE(::SetCurrentDirectoryA(TestDirectory.c_str()), 0); 632 LongDir.clear(); 633 // Generate a relative directory name with absolute length > 248. 634 size_t LongDirLen = 249 - TestDirectory.size(); 635 LongDir.assign(LongDirLen, 'a'); 636 ASSERT_NO_ERROR(fs::create_directory(Twine(LongDir))); 637 // While we're here, prove that .. and . handling works in these long paths. 638 const char *DotDotDirs = "\\..\\.\\b"; 639 LongDir.append(DotDotDirs); 640 ASSERT_NO_ERROR(fs::create_directory("b")); 641 ASSERT_EQ(fs::create_directory(Twine(LongDir), false), errc::file_exists); 642 // And clean up. 643 ASSERT_NO_ERROR(fs::remove("b")); 644 ASSERT_NO_ERROR(fs::remove( 645 Twine(LongDir.substr(0, LongDir.size() - strlen(DotDotDirs))))); 646 ASSERT_NE(::SetCurrentDirectoryA(PreviousDir), 0); 647 #endif 648 } 649 650 TEST_F(FileSystemTest, DirectoryIteration) { 651 std::error_code ec; 652 for (fs::directory_iterator i(".", ec), e; i != e; i.increment(ec)) 653 ASSERT_NO_ERROR(ec); 654 655 // Create a known hierarchy to recurse over. 656 ASSERT_NO_ERROR( 657 fs::create_directories(Twine(TestDirectory) + "/recursive/a0/aa1")); 658 ASSERT_NO_ERROR( 659 fs::create_directories(Twine(TestDirectory) + "/recursive/a0/ab1")); 660 ASSERT_NO_ERROR(fs::create_directories(Twine(TestDirectory) + 661 "/recursive/dontlookhere/da1")); 662 ASSERT_NO_ERROR( 663 fs::create_directories(Twine(TestDirectory) + "/recursive/z0/za1")); 664 ASSERT_NO_ERROR( 665 fs::create_directories(Twine(TestDirectory) + "/recursive/pop/p1")); 666 typedef std::vector<std::string> v_t; 667 v_t visited; 668 for (fs::recursive_directory_iterator i(Twine(TestDirectory) 669 + "/recursive", ec), e; i != e; i.increment(ec)){ 670 ASSERT_NO_ERROR(ec); 671 if (path::filename(i->path()) == "p1") { 672 i.pop(); 673 // FIXME: recursive_directory_iterator should be more robust. 674 if (i == e) break; 675 } 676 if (path::filename(i->path()) == "dontlookhere") 677 i.no_push(); 678 visited.push_back(path::filename(i->path())); 679 } 680 v_t::const_iterator a0 = std::find(visited.begin(), visited.end(), "a0"); 681 v_t::const_iterator aa1 = std::find(visited.begin(), visited.end(), "aa1"); 682 v_t::const_iterator ab1 = std::find(visited.begin(), visited.end(), "ab1"); 683 v_t::const_iterator dontlookhere = std::find(visited.begin(), visited.end(), 684 "dontlookhere"); 685 v_t::const_iterator da1 = std::find(visited.begin(), visited.end(), "da1"); 686 v_t::const_iterator z0 = std::find(visited.begin(), visited.end(), "z0"); 687 v_t::const_iterator za1 = std::find(visited.begin(), visited.end(), "za1"); 688 v_t::const_iterator pop = std::find(visited.begin(), visited.end(), "pop"); 689 v_t::const_iterator p1 = std::find(visited.begin(), visited.end(), "p1"); 690 691 // Make sure that each path was visited correctly. 692 ASSERT_NE(a0, visited.end()); 693 ASSERT_NE(aa1, visited.end()); 694 ASSERT_NE(ab1, visited.end()); 695 ASSERT_NE(dontlookhere, visited.end()); 696 ASSERT_EQ(da1, visited.end()); // Not visited. 697 ASSERT_NE(z0, visited.end()); 698 ASSERT_NE(za1, visited.end()); 699 ASSERT_NE(pop, visited.end()); 700 ASSERT_EQ(p1, visited.end()); // Not visited. 701 702 // Make sure that parents were visited before children. No other ordering 703 // guarantees can be made across siblings. 704 ASSERT_LT(a0, aa1); 705 ASSERT_LT(a0, ab1); 706 ASSERT_LT(z0, za1); 707 708 ASSERT_NO_ERROR(fs::remove(Twine(TestDirectory) + "/recursive/a0/aa1")); 709 ASSERT_NO_ERROR(fs::remove(Twine(TestDirectory) + "/recursive/a0/ab1")); 710 ASSERT_NO_ERROR(fs::remove(Twine(TestDirectory) + "/recursive/a0")); 711 ASSERT_NO_ERROR( 712 fs::remove(Twine(TestDirectory) + "/recursive/dontlookhere/da1")); 713 ASSERT_NO_ERROR(fs::remove(Twine(TestDirectory) + "/recursive/dontlookhere")); 714 ASSERT_NO_ERROR(fs::remove(Twine(TestDirectory) + "/recursive/pop/p1")); 715 ASSERT_NO_ERROR(fs::remove(Twine(TestDirectory) + "/recursive/pop")); 716 ASSERT_NO_ERROR(fs::remove(Twine(TestDirectory) + "/recursive/z0/za1")); 717 ASSERT_NO_ERROR(fs::remove(Twine(TestDirectory) + "/recursive/z0")); 718 ASSERT_NO_ERROR(fs::remove(Twine(TestDirectory) + "/recursive")); 719 720 // Test recursive_directory_iterator level() 721 ASSERT_NO_ERROR( 722 fs::create_directories(Twine(TestDirectory) + "/reclevel/a/b/c")); 723 fs::recursive_directory_iterator I(Twine(TestDirectory) + "/reclevel", ec), E; 724 for (int l = 0; I != E; I.increment(ec), ++l) { 725 ASSERT_NO_ERROR(ec); 726 EXPECT_EQ(I.level(), l); 727 } 728 EXPECT_EQ(I, E); 729 ASSERT_NO_ERROR(fs::remove(Twine(TestDirectory) + "/reclevel/a/b/c")); 730 ASSERT_NO_ERROR(fs::remove(Twine(TestDirectory) + "/reclevel/a/b")); 731 ASSERT_NO_ERROR(fs::remove(Twine(TestDirectory) + "/reclevel/a")); 732 ASSERT_NO_ERROR(fs::remove(Twine(TestDirectory) + "/reclevel")); 733 } 734 735 const char archive[] = "!<arch>\x0A"; 736 const char bitcode[] = "\xde\xc0\x17\x0b"; 737 const char coff_object[] = "\x00\x00......"; 738 const char coff_bigobj[] = "\x00\x00\xff\xff\x00\x02......" 739 "\xc7\xa1\xba\xd1\xee\xba\xa9\x4b\xaf\x20\xfa\xf6\x6a\xa4\xdc\xb8"; 740 const char coff_import_library[] = "\x00\x00\xff\xff...."; 741 const char elf_relocatable[] = { 0x7f, 'E', 'L', 'F', 1, 2, 1, 0, 0, 742 0, 0, 0, 0, 0, 0, 0, 0, 1 }; 743 const char macho_universal_binary[] = "\xca\xfe\xba\xbe...\x00"; 744 const char macho_object[] = 745 "\xfe\xed\xfa\xce........\x00\x00\x00\x01............"; 746 const char macho_executable[] = 747 "\xfe\xed\xfa\xce........\x00\x00\x00\x02............"; 748 const char macho_fixed_virtual_memory_shared_lib[] = 749 "\xfe\xed\xfa\xce........\x00\x00\x00\x03............"; 750 const char macho_core[] = 751 "\xfe\xed\xfa\xce........\x00\x00\x00\x04............"; 752 const char macho_preload_executable[] = 753 "\xfe\xed\xfa\xce........\x00\x00\x00\x05............"; 754 const char macho_dynamically_linked_shared_lib[] = 755 "\xfe\xed\xfa\xce........\x00\x00\x00\x06............"; 756 const char macho_dynamic_linker[] = 757 "\xfe\xed\xfa\xce........\x00\x00\x00\x07............"; 758 const char macho_bundle[] = 759 "\xfe\xed\xfa\xce........\x00\x00\x00\x08............"; 760 const char macho_dsym_companion[] = 761 "\xfe\xed\xfa\xce........\x00\x00\x00\x0a............"; 762 const char macho_kext_bundle[] = 763 "\xfe\xed\xfa\xce........\x00\x00\x00\x0b............"; 764 const char windows_resource[] = "\x00\x00\x00\x00\x020\x00\x00\x00\xff"; 765 const char macho_dynamically_linked_shared_lib_stub[] = 766 "\xfe\xed\xfa\xce........\x00\x00\x00\x09............"; 767 768 TEST_F(FileSystemTest, Magic) { 769 struct type { 770 const char *filename; 771 const char *magic_str; 772 size_t magic_str_len; 773 fs::file_magic magic; 774 } types[] = { 775 #define DEFINE(magic) \ 776 { #magic, magic, sizeof(magic), fs::file_magic::magic } 777 DEFINE(archive), 778 DEFINE(bitcode), 779 DEFINE(coff_object), 780 { "coff_bigobj", coff_bigobj, sizeof(coff_bigobj), fs::file_magic::coff_object }, 781 DEFINE(coff_import_library), 782 DEFINE(elf_relocatable), 783 DEFINE(macho_universal_binary), 784 DEFINE(macho_object), 785 DEFINE(macho_executable), 786 DEFINE(macho_fixed_virtual_memory_shared_lib), 787 DEFINE(macho_core), 788 DEFINE(macho_preload_executable), 789 DEFINE(macho_dynamically_linked_shared_lib), 790 DEFINE(macho_dynamic_linker), 791 DEFINE(macho_bundle), 792 DEFINE(macho_dynamically_linked_shared_lib_stub), 793 DEFINE(macho_dsym_companion), 794 DEFINE(macho_kext_bundle), 795 DEFINE(windows_resource) 796 #undef DEFINE 797 }; 798 799 // Create some files filled with magic. 800 for (type *i = types, *e = types + (sizeof(types) / sizeof(type)); i != e; 801 ++i) { 802 SmallString<128> file_pathname(TestDirectory); 803 path::append(file_pathname, i->filename); 804 std::error_code EC; 805 raw_fd_ostream file(file_pathname, EC, sys::fs::F_None); 806 ASSERT_FALSE(file.has_error()); 807 StringRef magic(i->magic_str, i->magic_str_len); 808 file << magic; 809 file.close(); 810 EXPECT_EQ(i->magic, fs::identify_magic(magic)); 811 ASSERT_NO_ERROR(fs::remove(Twine(file_pathname))); 812 } 813 } 814 815 #ifdef LLVM_ON_WIN32 816 TEST_F(FileSystemTest, CarriageReturn) { 817 SmallString<128> FilePathname(TestDirectory); 818 std::error_code EC; 819 path::append(FilePathname, "test"); 820 821 { 822 raw_fd_ostream File(FilePathname, EC, sys::fs::F_Text); 823 ASSERT_NO_ERROR(EC); 824 File << '\n'; 825 } 826 { 827 auto Buf = MemoryBuffer::getFile(FilePathname.str()); 828 EXPECT_TRUE((bool)Buf); 829 EXPECT_EQ(Buf.get()->getBuffer(), "\r\n"); 830 } 831 832 { 833 raw_fd_ostream File(FilePathname, EC, sys::fs::F_None); 834 ASSERT_NO_ERROR(EC); 835 File << '\n'; 836 } 837 { 838 auto Buf = MemoryBuffer::getFile(FilePathname.str()); 839 EXPECT_TRUE((bool)Buf); 840 EXPECT_EQ(Buf.get()->getBuffer(), "\n"); 841 } 842 ASSERT_NO_ERROR(fs::remove(Twine(FilePathname))); 843 } 844 #endif 845 846 TEST_F(FileSystemTest, Resize) { 847 int FD; 848 SmallString<64> TempPath; 849 ASSERT_NO_ERROR(fs::createTemporaryFile("prefix", "temp", FD, TempPath)); 850 ASSERT_NO_ERROR(fs::resize_file(FD, 123)); 851 fs::file_status Status; 852 ASSERT_NO_ERROR(fs::status(FD, Status)); 853 ASSERT_EQ(Status.getSize(), 123U); 854 } 855 856 TEST_F(FileSystemTest, FileMapping) { 857 // Create a temp file. 858 int FileDescriptor; 859 SmallString<64> TempPath; 860 ASSERT_NO_ERROR( 861 fs::createTemporaryFile("prefix", "temp", FileDescriptor, TempPath)); 862 unsigned Size = 4096; 863 ASSERT_NO_ERROR(fs::resize_file(FileDescriptor, Size)); 864 865 // Map in temp file and add some content 866 std::error_code EC; 867 StringRef Val("hello there"); 868 { 869 fs::mapped_file_region mfr(FileDescriptor, 870 fs::mapped_file_region::readwrite, Size, 0, EC); 871 ASSERT_NO_ERROR(EC); 872 std::copy(Val.begin(), Val.end(), mfr.data()); 873 // Explicitly add a 0. 874 mfr.data()[Val.size()] = 0; 875 // Unmap temp file 876 } 877 878 // Map it back in read-only 879 int FD; 880 EC = fs::openFileForRead(Twine(TempPath), FD); 881 ASSERT_NO_ERROR(EC); 882 fs::mapped_file_region mfr(FD, fs::mapped_file_region::readonly, Size, 0, EC); 883 ASSERT_NO_ERROR(EC); 884 885 // Verify content 886 EXPECT_EQ(StringRef(mfr.const_data()), Val); 887 888 // Unmap temp file 889 fs::mapped_file_region m(FD, fs::mapped_file_region::readonly, Size, 0, EC); 890 ASSERT_NO_ERROR(EC); 891 ASSERT_EQ(close(FD), 0); 892 } 893 894 TEST(Support, NormalizePath) { 895 #if defined(LLVM_ON_WIN32) 896 #define EXPECT_PATH_IS(path__, windows__, not_windows__) \ 897 EXPECT_EQ(path__, windows__); 898 #else 899 #define EXPECT_PATH_IS(path__, windows__, not_windows__) \ 900 EXPECT_EQ(path__, not_windows__); 901 #endif 902 903 SmallString<64> Path1("a"); 904 SmallString<64> Path2("a/b"); 905 SmallString<64> Path3("a\\b"); 906 SmallString<64> Path4("a\\\\b"); 907 SmallString<64> Path5("\\a"); 908 SmallString<64> Path6("a\\"); 909 910 path::native(Path1); 911 EXPECT_PATH_IS(Path1, "a", "a"); 912 913 path::native(Path2); 914 EXPECT_PATH_IS(Path2, "a\\b", "a/b"); 915 916 path::native(Path3); 917 EXPECT_PATH_IS(Path3, "a\\b", "a/b"); 918 919 path::native(Path4); 920 EXPECT_PATH_IS(Path4, "a\\\\b", "a\\\\b"); 921 922 path::native(Path5); 923 EXPECT_PATH_IS(Path5, "\\a", "/a"); 924 925 path::native(Path6); 926 EXPECT_PATH_IS(Path6, "a\\", "a/"); 927 928 #undef EXPECT_PATH_IS 929 } 930 931 TEST(Support, RemoveLeadingDotSlash) { 932 StringRef Path1("././/foolz/wat"); 933 StringRef Path2("./////"); 934 935 Path1 = path::remove_leading_dotslash(Path1); 936 EXPECT_EQ(Path1, "foolz/wat"); 937 Path2 = path::remove_leading_dotslash(Path2); 938 EXPECT_EQ(Path2, ""); 939 } 940 941 static std::string remove_dots(StringRef path, 942 bool remove_dot_dot) { 943 SmallString<256> buffer(path); 944 path::remove_dots(buffer, remove_dot_dot); 945 return buffer.str(); 946 } 947 948 TEST(Support, RemoveDots) { 949 #if defined(LLVM_ON_WIN32) 950 EXPECT_EQ("foolz\\wat", remove_dots(".\\.\\\\foolz\\wat", false)); 951 EXPECT_EQ("", remove_dots(".\\\\\\\\\\", false)); 952 953 EXPECT_EQ("a\\..\\b\\c", remove_dots(".\\a\\..\\b\\c", false)); 954 EXPECT_EQ("b\\c", remove_dots(".\\a\\..\\b\\c", true)); 955 EXPECT_EQ("c", remove_dots(".\\.\\c", true)); 956 957 SmallString<64> Path1(".\\.\\c"); 958 EXPECT_TRUE(path::remove_dots(Path1, true)); 959 EXPECT_EQ("c", Path1); 960 #else 961 EXPECT_EQ("foolz/wat", remove_dots("././/foolz/wat", false)); 962 EXPECT_EQ("", remove_dots("./////", false)); 963 964 EXPECT_EQ("a/../b/c", remove_dots("./a/../b/c", false)); 965 EXPECT_EQ("b/c", remove_dots("./a/../b/c", true)); 966 EXPECT_EQ("c", remove_dots("././c", true)); 967 968 SmallString<64> Path1("././c"); 969 EXPECT_TRUE(path::remove_dots(Path1, true)); 970 EXPECT_EQ("c", Path1); 971 #endif 972 } 973 974 TEST(Support, ReplacePathPrefix) { 975 SmallString<64> Path1("/foo"); 976 SmallString<64> Path2("/old/foo"); 977 SmallString<64> OldPrefix("/old"); 978 SmallString<64> NewPrefix("/new"); 979 SmallString<64> NewPrefix2("/longernew"); 980 SmallString<64> EmptyPrefix(""); 981 982 SmallString<64> Path = Path1; 983 path::replace_path_prefix(Path, OldPrefix, NewPrefix); 984 EXPECT_EQ(Path, "/foo"); 985 Path = Path2; 986 path::replace_path_prefix(Path, OldPrefix, NewPrefix); 987 EXPECT_EQ(Path, "/new/foo"); 988 Path = Path2; 989 path::replace_path_prefix(Path, OldPrefix, NewPrefix2); 990 EXPECT_EQ(Path, "/longernew/foo"); 991 Path = Path1; 992 path::replace_path_prefix(Path, EmptyPrefix, NewPrefix); 993 EXPECT_EQ(Path, "/new/foo"); 994 Path = Path2; 995 path::replace_path_prefix(Path, OldPrefix, EmptyPrefix); 996 EXPECT_EQ(Path, "/foo"); 997 } 998 999 TEST_F(FileSystemTest, PathFromFD) { 1000 // Create a temp file. 1001 int FileDescriptor; 1002 SmallString<64> TempPath; 1003 ASSERT_NO_ERROR( 1004 fs::createTemporaryFile("prefix", "temp", FileDescriptor, TempPath)); 1005 1006 // Make sure it exists. 1007 ASSERT_TRUE(sys::fs::exists(Twine(TempPath))); 1008 1009 // Try to get the path from the file descriptor 1010 SmallString<64> ResultPath; 1011 std::error_code ErrorCode = 1012 fs::getPathFromOpenFD(FileDescriptor, ResultPath); 1013 1014 // If we succeeded, check that the paths are the same (modulo case): 1015 if (!ErrorCode) { 1016 // The paths returned by createTemporaryFile and getPathFromOpenFD 1017 // should reference the same file on disk. 1018 fs::UniqueID D1, D2; 1019 ASSERT_NO_ERROR(fs::getUniqueID(Twine(TempPath), D1)); 1020 ASSERT_NO_ERROR(fs::getUniqueID(Twine(ResultPath), D2)); 1021 ASSERT_EQ(D1, D2); 1022 } 1023 1024 ::close(FileDescriptor); 1025 } 1026 1027 TEST_F(FileSystemTest, PathFromFDWin32) { 1028 // Create a temp file. 1029 int FileDescriptor; 1030 SmallString<64> TempPath; 1031 ASSERT_NO_ERROR( 1032 fs::createTemporaryFile("prefix", "temp", FileDescriptor, TempPath)); 1033 1034 // Make sure it exists. 1035 ASSERT_TRUE(sys::fs::exists(Twine(TempPath))); 1036 1037 SmallVector<char, 8> ResultPath; 1038 std::error_code ErrorCode = 1039 fs::getPathFromOpenFD(FileDescriptor, ResultPath); 1040 1041 if (!ErrorCode) { 1042 // Now that we know how much space is required for the path, create a path 1043 // buffer with exactly enough space (sans null terminator, which should not 1044 // be present), and call getPathFromOpenFD again to ensure that the API 1045 // properly handles exactly-sized buffers. 1046 SmallVector<char, 8> ExactSizedPath(ResultPath.size()); 1047 ErrorCode = fs::getPathFromOpenFD(FileDescriptor, ExactSizedPath); 1048 ResultPath = ExactSizedPath; 1049 } 1050 1051 if (!ErrorCode) { 1052 fs::UniqueID D1, D2; 1053 ASSERT_NO_ERROR(fs::getUniqueID(Twine(TempPath), D1)); 1054 ASSERT_NO_ERROR(fs::getUniqueID(Twine(ResultPath), D2)); 1055 ASSERT_EQ(D1, D2); 1056 } 1057 ::close(FileDescriptor); 1058 } 1059 1060 TEST_F(FileSystemTest, PathFromFDUnicode) { 1061 // Create a temp file. 1062 int FileDescriptor; 1063 SmallString<64> TempPath; 1064 1065 // Test Unicode: "<temp directory>/(pi)r^2<temp rand chars>.aleth.0" 1066 ASSERT_NO_ERROR( 1067 fs::createTemporaryFile("\xCF\x80r\xC2\xB2", 1068 "\xE2\x84\xB5.0", FileDescriptor, TempPath)); 1069 1070 // Make sure it exists. 1071 ASSERT_TRUE(sys::fs::exists(Twine(TempPath))); 1072 1073 SmallVector<char, 8> ResultPath; 1074 std::error_code ErrorCode = 1075 fs::getPathFromOpenFD(FileDescriptor, ResultPath); 1076 1077 if (!ErrorCode) { 1078 fs::UniqueID D1, D2; 1079 ASSERT_NO_ERROR(fs::getUniqueID(Twine(TempPath), D1)); 1080 ASSERT_NO_ERROR(fs::getUniqueID(Twine(ResultPath), D2)); 1081 ASSERT_EQ(D1, D2); 1082 } 1083 ::close(FileDescriptor); 1084 } 1085 1086 TEST_F(FileSystemTest, OpenFileForRead) { 1087 // Create a temp file. 1088 int FileDescriptor; 1089 SmallString<64> TempPath; 1090 ASSERT_NO_ERROR( 1091 fs::createTemporaryFile("prefix", "temp", FileDescriptor, TempPath)); 1092 1093 // Make sure it exists. 1094 ASSERT_TRUE(sys::fs::exists(Twine(TempPath))); 1095 1096 // Open the file for read 1097 int FileDescriptor2; 1098 SmallString<64> ResultPath; 1099 ASSERT_NO_ERROR( 1100 fs::openFileForRead(Twine(TempPath), FileDescriptor2, &ResultPath)) 1101 1102 // If we succeeded, check that the paths are the same (modulo case): 1103 if (!ResultPath.empty()) { 1104 // The paths returned by createTemporaryFile and getPathFromOpenFD 1105 // should reference the same file on disk. 1106 fs::UniqueID D1, D2; 1107 ASSERT_NO_ERROR(fs::getUniqueID(Twine(TempPath), D1)); 1108 ASSERT_NO_ERROR(fs::getUniqueID(Twine(ResultPath), D2)); 1109 ASSERT_EQ(D1, D2); 1110 } 1111 1112 ::close(FileDescriptor); 1113 } 1114 } // anonymous namespace 1115
