unittests/Support/Path.cpp

   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/ErrorHandling.h"
  12 #include "llvm/Support/FileSystem.h"
  13 #include "llvm/Support/MemoryBuffer.h"
  14 #include "llvm/Support/raw_ostream.h"
  15 #include "gtest/gtest.h"
  16
  17 #ifdef LLVM_ON_WIN32
  18 #include <winerror.h>
  19 #endif
  20
  21 using namespace llvm;
  22 using namespace llvm::sys;
  23
  24 #define ASSERT_NO_ERROR(x) \
  25   if (error_code ASSERT_NO_ERROR_ec = x) { \
  26     SmallString<128> MessageStorage; \
  27     raw_svector_ostream Message(MessageStorage); \
  28     Message << #x ": did not return errc::success.\n" \
  29             << "error number: " << ASSERT_NO_ERROR_ec.value() << "\n" \
  30             << "error message: " << ASSERT_NO_ERROR_ec.message() << "\n"; \
  31     GTEST_FATAL_FAILURE_(MessageStorage.c_str()); \
  32   } else {}
  33
  34 namespace {
  35
  36 TEST(is_separator, Works) {
  37   EXPECT_TRUE(path::is_separator('/'));
  38   EXPECT_FALSE(path::is_separator('\0'));
  39   EXPECT_FALSE(path::is_separator('-'));
  40   EXPECT_FALSE(path::is_separator(' '));
  41
  42 #ifdef LLVM_ON_WIN32
  43   EXPECT_TRUE(path::is_separator('\\'));
  44 #else
  45   EXPECT_FALSE(path::is_separator('\\'));
  46 #endif
  47 }
  48
  49 TEST(Support, Path) {
  50   SmallVector<StringRef, 40> paths;
  51   paths.push_back("");
  52   paths.push_back(".");
  53   paths.push_back("..");
  54   paths.push_back("foo");
  55   paths.push_back("/");
  56   paths.push_back("/foo");
  57   paths.push_back("foo/");
  58   paths.push_back("/foo/");
  59   paths.push_back("foo/bar");
  60   paths.push_back("/foo/bar");
  61   paths.push_back("//net");
  62   paths.push_back("//net/foo");
  63   paths.push_back("///foo///");
  64   paths.push_back("///foo///bar");
  65   paths.push_back("/.");
  66   paths.push_back("./");
  67   paths.push_back("/..");
  68   paths.push_back("../");
  69   paths.push_back("foo/.");
  70   paths.push_back("foo/..");
  71   paths.push_back("foo/./");
  72   paths.push_back("foo/./bar");
  73   paths.push_back("foo/..");
  74   paths.push_back("foo/../");
  75   paths.push_back("foo/../bar");
  76   paths.push_back("c:");
  77   paths.push_back("c:/");
  78   paths.push_back("c:foo");
  79   paths.push_back("c:/foo");
  80   paths.push_back("c:foo/");
  81   paths.push_back("c:/foo/");
  82   paths.push_back("c:/foo/bar");
  83   paths.push_back("prn:");
  84   paths.push_back("c:\\");
  85   paths.push_back("c:foo");
  86   paths.push_back("c:\\foo");
  87   paths.push_back("c:foo\\");
  88   paths.push_back("c:\\foo\\");
  89   paths.push_back("c:\\foo/");
  90   paths.push_back("c:/foo\\bar");
  91
  92   for (SmallVector<StringRef, 40>::const_iterator i = paths.begin(),
  93                                                   e = paths.end();
  94                                                   i != e;
  95                                                   ++i) {
  96     for (sys::path::const_iterator ci = sys::path::begin(*i),
  97                                    ce = sys::path::end(*i);
  98                                    ci != ce;
  99                                    ++ci) {
 100       ASSERT_FALSE(ci->empty());
 101     }
 102
 103 #if 0 // Valgrind is whining about this.
 104     outs() << "    Reverse Iteration: [";
 105     for (sys::path::reverse_iterator ci = sys::path::rbegin(*i),
 106                                      ce = sys::path::rend(*i);
 107                                      ci != ce;
 108                                      ++ci) {
 109       outs() << *ci << ',';
 110     }
 111     outs() << "]\n";
 112 #endif
 113
 114     path::has_root_path(*i);
 115     path::root_path(*i);
 116     path::has_root_name(*i);
 117     path::root_name(*i);
 118     path::has_root_directory(*i);
 119     path::root_directory(*i);
 120     path::has_parent_path(*i);
 121     path::parent_path(*i);
 122     path::has_filename(*i);
 123     path::filename(*i);
 124     path::has_stem(*i);
 125     path::stem(*i);
 126     path::has_extension(*i);
 127     path::extension(*i);
 128     path::is_absolute(*i);
 129     path::is_relative(*i);
 130
 131     SmallString<128> temp_store;
 132     temp_store = *i;
 133     ASSERT_NO_ERROR(fs::make_absolute(temp_store));
 134     temp_store = *i;
 135     path::remove_filename(temp_store);
 136
 137     temp_store = *i;
 138     path::replace_extension(temp_store, "ext");
 139     StringRef filename(temp_store.begin(), temp_store.size()), stem, ext;
 140     stem = path::stem(filename);
 141     ext  = path::extension(filename);
 142     EXPECT_EQ(*(--sys::path::end(filename)), (stem + ext).str());
 143
 144     path::native(*i, temp_store);
 145   }
 146 }
 147
 148 TEST(Support, RelativePathIterator) {
 149   SmallString<64> Path(StringRef("c/d/e/foo.txt"));
 150   typedef SmallVector<StringRef, 4> PathComponents;
 151   PathComponents ExpectedPathComponents;
 152   PathComponents ActualPathComponents;
 153
 154   StringRef(Path).split(ExpectedPathComponents, "/");
 155
 156   for (path::const_iterator I = path::begin(Path), E = path::end(Path); I != E;
 157        ++I) {
 158     ActualPathComponents.push_back(*I);
 159   }
 160
 161   ASSERT_EQ(ExpectedPathComponents.size(), ActualPathComponents.size());
 162
 163   for (size_t i = 0; i <ExpectedPathComponents.size(); ++i) {
 164     EXPECT_EQ(ExpectedPathComponents[i].str(), ActualPathComponents[i].str());
 165   }
 166 }
 167
 168 TEST(Support, AbsolutePathIterator) {
 169   SmallString<64> Path(StringRef("/c/d/e/foo.txt"));
 170   typedef SmallVector<StringRef, 4> PathComponents;
 171   PathComponents ExpectedPathComponents;
 172   PathComponents ActualPathComponents;
 173
 174   StringRef(Path).split(ExpectedPathComponents, "/");
 175
 176   // The root path will also be a component when iterating
 177   ExpectedPathComponents[0] = "/";
 178
 179   for (path::const_iterator I = path::begin(Path), E = path::end(Path); I != E;
 180        ++I) {
 181     ActualPathComponents.push_back(*I);
 182   }
 183
 184   ASSERT_EQ(ExpectedPathComponents.size(), ActualPathComponents.size());
 185
 186   for (size_t i = 0; i <ExpectedPathComponents.size(); ++i) {
 187     EXPECT_EQ(ExpectedPathComponents[i].str(), ActualPathComponents[i].str());
 188   }
 189 }
 190
 191 #ifdef LLVM_ON_WIN32
 192 TEST(Support, AbsolutePathIteratorWin32) {
 193   SmallString<64> Path(StringRef("c:\\c\\e\\foo.txt"));
 194   typedef SmallVector<StringRef, 4> PathComponents;
 195   PathComponents ExpectedPathComponents;
 196   PathComponents ActualPathComponents;
 197
 198   StringRef(Path).split(ExpectedPathComponents, "\\");
 199
 200   // The root path (which comes after the drive name) will also be a component
 201   // when iterating.
 202   ExpectedPathComponents.insert(ExpectedPathComponents.begin()+1, "\\");
 203
 204   for (path::const_iterator I = path::begin(Path), E = path::end(Path); I != E;
 205        ++I) {
 206     ActualPathComponents.push_back(*I);
 207   }
 208
 209   ASSERT_EQ(ExpectedPathComponents.size(), ActualPathComponents.size());
 210
 211   for (size_t i = 0; i <ExpectedPathComponents.size(); ++i) {
 212     EXPECT_EQ(ExpectedPathComponents[i].str(), ActualPathComponents[i].str());
 213   }
 214 }
 215 #endif // LLVM_ON_WIN32
 216
 217 TEST(Support, AbsolutePathIteratorEnd) {
 218   // Trailing slashes are converted to '.' unless they are part of the root path.
 219   SmallVector<StringRef, 4> Paths;
 220   Paths.push_back("/foo/");
 221   Paths.push_back("/foo//");
 222   Paths.push_back("//net//");
 223 #ifdef LLVM_ON_WIN32
 224   Paths.push_back("c:\\\\");
 225 #endif
 226
 227   for (StringRef Path : Paths) {
 228     StringRef LastComponent = *--path::end(Path);
 229     EXPECT_EQ(".", LastComponent);
 230   }
 231
 232   SmallVector<StringRef, 3> RootPaths;
 233   RootPaths.push_back("/");
 234   RootPaths.push_back("//net/");
 235 #ifdef LLVM_ON_WIN32
 236   RootPaths.push_back("c:\\");
 237 #endif
 238
 239   for (StringRef Path : RootPaths) {
 240     StringRef LastComponent = *--path::end(Path);
 241     EXPECT_EQ(1u, LastComponent.size());
 242     EXPECT_TRUE(path::is_separator(LastComponent[0]));
 243   }
 244 }
 245
 246 TEST(Support, HomeDirectory) {
 247 #ifdef LLVM_ON_UNIX
 248   // This test only makes sense on Unix if $HOME is set.
 249   if (::getenv("HOME")) {
 250 #endif
 251     SmallString<128> HomeDir;
 252     EXPECT_TRUE(path::home_directory(HomeDir));
 253     EXPECT_FALSE(HomeDir.empty());
 254 #ifdef LLVM_ON_UNIX
 255   }
 256 #endif
 257 }
 258
 259 class FileSystemTest : public testing::Test {
 260 protected:
 261   /// Unique temporary directory in which all created filesystem entities must
 262   /// be placed. It is recursively removed at the end of each test.
 263   SmallString<128> TestDirectory;
 264
 265   virtual void SetUp() {
 266     ASSERT_NO_ERROR(
 267         fs::createUniqueDirectory("file-system-test", TestDirectory));
 268     // We don't care about this specific file.
 269     errs() << "Test Directory: " << TestDirectory << '\n';
 270     errs().flush();
 271   }
 272
 273   virtual void TearDown() {
 274     ASSERT_NO_ERROR(fs::remove(TestDirectory.str()));
 275   }
 276 };
 277
 278 TEST_F(FileSystemTest, Unique) {
 279   // Create a temp file.
 280   int FileDescriptor;
 281   SmallString<64> TempPath;
 282   ASSERT_NO_ERROR(
 283       fs::createTemporaryFile("prefix", "temp", FileDescriptor, TempPath));
 284
 285   // The same file should return an identical unique id.
 286   fs::UniqueID F1, F2;
 287   ASSERT_NO_ERROR(fs::getUniqueID(Twine(TempPath), F1));
 288   ASSERT_NO_ERROR(fs::getUniqueID(Twine(TempPath), F2));
 289   ASSERT_EQ(F1, F2);
 290
 291   // Different files should return different unique ids.
 292   int FileDescriptor2;
 293   SmallString<64> TempPath2;
 294   ASSERT_NO_ERROR(
 295       fs::createTemporaryFile("prefix", "temp", FileDescriptor2, TempPath2));
 296
 297   fs::UniqueID D;
 298   ASSERT_NO_ERROR(fs::getUniqueID(Twine(TempPath2), D));
 299   ASSERT_NE(D, F1);
 300   ::close(FileDescriptor2);
 301
 302   ASSERT_NO_ERROR(fs::remove(Twine(TempPath2)));
 303
 304   // Two paths representing the same file on disk should still provide the
 305   // same unique id.  We can test this by making a hard link.
 306   ASSERT_NO_ERROR(fs::create_link(Twine(TempPath), Twine(TempPath2)));
 307   fs::UniqueID D2;
 308   ASSERT_NO_ERROR(fs::getUniqueID(Twine(TempPath2), D2));
 309   ASSERT_EQ(D2, F1);
 310
 311   ::close(FileDescriptor);
 312
 313   SmallString<128> Dir1;
 314   ASSERT_NO_ERROR(
 315      fs::createUniqueDirectory("dir1", Dir1));
 316   ASSERT_NO_ERROR(fs::getUniqueID(Dir1.c_str(), F1));
 317   ASSERT_NO_ERROR(fs::getUniqueID(Dir1.c_str(), F2));
 318   ASSERT_EQ(F1, F2);
 319
 320   SmallString<128> Dir2;
 321   ASSERT_NO_ERROR(
 322      fs::createUniqueDirectory("dir2", Dir2));
 323   ASSERT_NO_ERROR(fs::getUniqueID(Dir2.c_str(), F2));
 324   ASSERT_NE(F1, F2);
 325 }
 326
 327 TEST_F(FileSystemTest, TempFiles) {
 328   // Create a temp file.
 329   int FileDescriptor;
 330   SmallString<64> TempPath;
 331   ASSERT_NO_ERROR(
 332       fs::createTemporaryFile("prefix", "temp", FileDescriptor, TempPath));
 333
 334   // Make sure it exists.
 335   bool TempFileExists;
 336   ASSERT_NO_ERROR(sys::fs::exists(Twine(TempPath), TempFileExists));
 337   EXPECT_TRUE(TempFileExists);
 338
 339   // Create another temp tile.
 340   int FD2;
 341   SmallString<64> TempPath2;
 342   ASSERT_NO_ERROR(fs::createTemporaryFile("prefix", "temp", FD2, TempPath2));
 343   ASSERT_TRUE(TempPath2.endswith(".temp"));
 344   ASSERT_NE(TempPath.str(), TempPath2.str());
 345
 346   fs::file_status A, B;
 347   ASSERT_NO_ERROR(fs::status(Twine(TempPath), A));
 348   ASSERT_NO_ERROR(fs::status(Twine(TempPath2), B));
 349   EXPECT_FALSE(fs::equivalent(A, B));
 350
 351   ::close(FD2);
 352
 353   // Remove Temp2.
 354   ASSERT_NO_ERROR(fs::remove(Twine(TempPath2)));
 355   ASSERT_NO_ERROR(fs::remove(Twine(TempPath2)));
 356   ASSERT_EQ(fs::remove(Twine(TempPath2), false),
 357             std::errc::no_such_file_or_directory);
 358
 359   error_code EC = fs::status(TempPath2.c_str(), B);
 360   EXPECT_EQ(EC, std::errc::no_such_file_or_directory);
 361   EXPECT_EQ(B.type(), fs::file_type::file_not_found);
 362
 363   // Make sure Temp2 doesn't exist.
 364   ASSERT_NO_ERROR(fs::exists(Twine(TempPath2), TempFileExists));
 365   EXPECT_FALSE(TempFileExists);
 366
 367   SmallString<64> TempPath3;
 368   ASSERT_NO_ERROR(fs::createTemporaryFile("prefix", "", TempPath3));
 369   ASSERT_FALSE(TempPath3.endswith("."));
 370
 371   // Create a hard link to Temp1.
 372   ASSERT_NO_ERROR(fs::create_link(Twine(TempPath), Twine(TempPath2)));
 373   bool equal;
 374   ASSERT_NO_ERROR(fs::equivalent(Twine(TempPath), Twine(TempPath2), equal));
 375   EXPECT_TRUE(equal);
 376   ASSERT_NO_ERROR(fs::status(Twine(TempPath), A));
 377   ASSERT_NO_ERROR(fs::status(Twine(TempPath2), B));
 378   EXPECT_TRUE(fs::equivalent(A, B));
 379
 380   // Remove Temp1.
 381   ::close(FileDescriptor);
 382   ASSERT_NO_ERROR(fs::remove(Twine(TempPath)));
 383
 384   // Remove the hard link.
 385   ASSERT_NO_ERROR(fs::remove(Twine(TempPath2)));
 386
 387   // Make sure Temp1 doesn't exist.
 388   ASSERT_NO_ERROR(fs::exists(Twine(TempPath), TempFileExists));
 389   EXPECT_FALSE(TempFileExists);
 390
 391 #ifdef LLVM_ON_WIN32
 392   // Path name > 260 chars should get an error.
 393   const char *Path270 =
 394     "abcdefghijklmnopqrstuvwxyz9abcdefghijklmnopqrstuvwxyz8"
 395     "abcdefghijklmnopqrstuvwxyz7abcdefghijklmnopqrstuvwxyz6"
 396     "abcdefghijklmnopqrstuvwxyz5abcdefghijklmnopqrstuvwxyz4"
 397     "abcdefghijklmnopqrstuvwxyz3abcdefghijklmnopqrstuvwxyz2"
 398     "abcdefghijklmnopqrstuvwxyz1abcdefghijklmnopqrstuvwxyz0";
 399   EXPECT_EQ(fs::createUniqueFile(Twine(Path270), FileDescriptor, TempPath),
 400             std::errc::no_such_file_or_directory);
 401 #endif
 402 }
 403
 404 TEST_F(FileSystemTest, CreateDir) {
 405   ASSERT_NO_ERROR(fs::create_directory(Twine(TestDirectory) + "foo"));
 406   ASSERT_NO_ERROR(fs::create_directory(Twine(TestDirectory) + "foo"));
 407   ASSERT_EQ(fs::create_directory(Twine(TestDirectory) + "foo", false),
 408             std::errc::file_exists);
 409   ASSERT_NO_ERROR(fs::remove(Twine(TestDirectory) + "foo"));
 410 }
 411
 412 TEST_F(FileSystemTest, DirectoryIteration) {
 413   error_code ec;
 414   for (fs::directory_iterator i(".", ec), e; i != e; i.increment(ec))
 415     ASSERT_NO_ERROR(ec);
 416
 417   // Create a known hierarchy to recurse over.
 418   ASSERT_NO_ERROR(
 419       fs::create_directories(Twine(TestDirectory) + "/recursive/a0/aa1"));
 420   ASSERT_NO_ERROR(
 421       fs::create_directories(Twine(TestDirectory) + "/recursive/a0/ab1"));
 422   ASSERT_NO_ERROR(fs::create_directories(Twine(TestDirectory) +
 423                                          "/recursive/dontlookhere/da1"));
 424   ASSERT_NO_ERROR(
 425       fs::create_directories(Twine(TestDirectory) + "/recursive/z0/za1"));
 426   ASSERT_NO_ERROR(
 427       fs::create_directories(Twine(TestDirectory) + "/recursive/pop/p1"));
 428   typedef std::vector<std::string> v_t;
 429   v_t visited;
 430   for (fs::recursive_directory_iterator i(Twine(TestDirectory)
 431          + "/recursive", ec), e; i != e; i.increment(ec)){
 432     ASSERT_NO_ERROR(ec);
 433     if (path::filename(i->path()) == "p1") {
 434       i.pop();
 435       // FIXME: recursive_directory_iterator should be more robust.
 436       if (i == e) break;
 437     }
 438     if (path::filename(i->path()) == "dontlookhere")
 439       i.no_push();
 440     visited.push_back(path::filename(i->path()));
 441   }
 442   v_t::const_iterator a0 = std::find(visited.begin(), visited.end(), "a0");
 443   v_t::const_iterator aa1 = std::find(visited.begin(), visited.end(), "aa1");
 444   v_t::const_iterator ab1 = std::find(visited.begin(), visited.end(), "ab1");
 445   v_t::const_iterator dontlookhere = std::find(visited.begin(), visited.end(),
 446                                                "dontlookhere");
 447   v_t::const_iterator da1 = std::find(visited.begin(), visited.end(), "da1");
 448   v_t::const_iterator z0 = std::find(visited.begin(), visited.end(), "z0");
 449   v_t::const_iterator za1 = std::find(visited.begin(), visited.end(), "za1");
 450   v_t::const_iterator pop = std::find(visited.begin(), visited.end(), "pop");
 451   v_t::const_iterator p1 = std::find(visited.begin(), visited.end(), "p1");
 452
 453   // Make sure that each path was visited correctly.
 454   ASSERT_NE(a0, visited.end());
 455   ASSERT_NE(aa1, visited.end());
 456   ASSERT_NE(ab1, visited.end());
 457   ASSERT_NE(dontlookhere, visited.end());
 458   ASSERT_EQ(da1, visited.end()); // Not visited.
 459   ASSERT_NE(z0, visited.end());
 460   ASSERT_NE(za1, visited.end());
 461   ASSERT_NE(pop, visited.end());
 462   ASSERT_EQ(p1, visited.end()); // Not visited.
 463
 464   // Make sure that parents were visited before children. No other ordering
 465   // guarantees can be made across siblings.
 466   ASSERT_LT(a0, aa1);
 467   ASSERT_LT(a0, ab1);
 468   ASSERT_LT(z0, za1);
 469
 470   ASSERT_NO_ERROR(fs::remove(Twine(TestDirectory) + "/recursive/a0/aa1"));
 471   ASSERT_NO_ERROR(fs::remove(Twine(TestDirectory) + "/recursive/a0/ab1"));
 472   ASSERT_NO_ERROR(fs::remove(Twine(TestDirectory) + "/recursive/a0"));
 473   ASSERT_NO_ERROR(
 474       fs::remove(Twine(TestDirectory) + "/recursive/dontlookhere/da1"));
 475   ASSERT_NO_ERROR(fs::remove(Twine(TestDirectory) + "/recursive/dontlookhere"));
 476   ASSERT_NO_ERROR(fs::remove(Twine(TestDirectory) + "/recursive/pop/p1"));
 477   ASSERT_NO_ERROR(fs::remove(Twine(TestDirectory) + "/recursive/pop"));
 478   ASSERT_NO_ERROR(fs::remove(Twine(TestDirectory) + "/recursive/z0/za1"));
 479   ASSERT_NO_ERROR(fs::remove(Twine(TestDirectory) + "/recursive/z0"));
 480   ASSERT_NO_ERROR(fs::remove(Twine(TestDirectory) + "/recursive"));
 481 }
 482
 483 const char archive[] = "!<arch>\x0A";
 484 const char bitcode[] = "\xde\xc0\x17\x0b";
 485 const char coff_object[] = "\x00\x00......";
 486 const char coff_import_library[] = "\x00\x00\xff\xff....";
 487 const char elf_relocatable[] = { 0x7f, 'E', 'L', 'F', 1, 2, 1, 0, 0,
 488                                  0,    0,   0,   0,   0, 0, 0, 0, 1 };
 489 const char macho_universal_binary[] = "\xca\xfe\xba\xbe...\0x00";
 490 const char macho_object[] = "\xfe\xed\xfa\xce..........\x00\x01";
 491 const char macho_executable[] = "\xfe\xed\xfa\xce..........\x00\x02";
 492 const char macho_fixed_virtual_memory_shared_lib[] =
 493     "\xfe\xed\xfa\xce..........\x00\x03";
 494 const char macho_core[] = "\xfe\xed\xfa\xce..........\x00\x04";
 495 const char macho_preload_executable[] = "\xfe\xed\xfa\xce..........\x00\x05";
 496 const char macho_dynamically_linked_shared_lib[] =
 497     "\xfe\xed\xfa\xce..........\x00\x06";
 498 const char macho_dynamic_linker[] = "\xfe\xed\xfa\xce..........\x00\x07";
 499 const char macho_bundle[] = "\xfe\xed\xfa\xce..........\x00\x08";
 500 const char macho_dsym_companion[] = "\xfe\xed\xfa\xce..........\x00\x0a";
 501 const char windows_resource[] = "\x00\x00\x00\x00\x020\x00\x00\x00\xff";
 502
 503 TEST_F(FileSystemTest, Magic) {
 504   struct type {
 505     const char *filename;
 506     const char *magic_str;
 507     size_t magic_str_len;
 508     fs::file_magic magic;
 509   } types[] = {
 510 #define DEFINE(magic)                                           \
 511     { #magic, magic, sizeof(magic), fs::file_magic::magic }
 512     DEFINE(archive),
 513     DEFINE(bitcode),
 514     DEFINE(coff_object),
 515     DEFINE(coff_import_library),
 516     DEFINE(elf_relocatable),
 517     DEFINE(macho_universal_binary),
 518     DEFINE(macho_object),
 519     DEFINE(macho_executable),
 520     DEFINE(macho_fixed_virtual_memory_shared_lib),
 521     DEFINE(macho_core),
 522     DEFINE(macho_preload_executable),
 523     DEFINE(macho_dynamically_linked_shared_lib),
 524     DEFINE(macho_dynamic_linker),
 525     DEFINE(macho_bundle),
 526     DEFINE(macho_dsym_companion),
 527     DEFINE(windows_resource)
 528 #undef DEFINE
 529     };
 530
 531   // Create some files filled with magic.
 532   for (type *i = types, *e = types + (sizeof(types) / sizeof(type)); i != e;
 533                                                                      ++i) {
 534     SmallString<128> file_pathname(TestDirectory);
 535     path::append(file_pathname, i->filename);
 536     std::string ErrMsg;
 537     raw_fd_ostream file(file_pathname.c_str(), ErrMsg, sys::fs::F_None);
 538     ASSERT_FALSE(file.has_error());
 539     StringRef magic(i->magic_str, i->magic_str_len);
 540     file << magic;
 541     file.close();
 542     bool res = false;
 543     ASSERT_NO_ERROR(fs::has_magic(file_pathname.c_str(), magic, res));
 544     EXPECT_TRUE(res);
 545     EXPECT_EQ(i->magic, fs::identify_magic(magic));
 546     ASSERT_NO_ERROR(fs::remove(Twine(file_pathname)));
 547   }
 548 }
 549
 550 #ifdef LLVM_ON_WIN32
 551 TEST_F(FileSystemTest, CarriageReturn) {
 552   SmallString<128> FilePathname(TestDirectory);
 553   std::string ErrMsg;
 554   path::append(FilePathname, "test");
 555
 556   {
 557     raw_fd_ostream File(FilePathname.c_str(), ErrMsg, sys::fs::F_Text);
 558     EXPECT_EQ(ErrMsg, "");
 559     File << '\n';
 560   }
 561   {
 562     std::unique_ptr<MemoryBuffer> Buf;
 563     MemoryBuffer::getFile(FilePathname.c_str(), Buf);
 564     EXPECT_EQ(Buf->getBuffer(), "\r\n");
 565   }
 566
 567   {
 568     raw_fd_ostream File(FilePathname.c_str(), ErrMsg, sys::fs::F_None);
 569     EXPECT_EQ(ErrMsg, "");
 570     File << '\n';
 571   }
 572   {
 573     std::unique_ptr<MemoryBuffer> Buf;
 574     MemoryBuffer::getFile(FilePathname.c_str(), Buf);
 575     EXPECT_EQ(Buf->getBuffer(), "\n");
 576   }
 577   ASSERT_NO_ERROR(fs::remove(Twine(FilePathname)));
 578 }
 579 #endif
 580
 581 TEST_F(FileSystemTest, FileMapping) {
 582   // Create a temp file.
 583   int FileDescriptor;
 584   SmallString<64> TempPath;
 585   ASSERT_NO_ERROR(
 586       fs::createTemporaryFile("prefix", "temp", FileDescriptor, TempPath));
 587   // Map in temp file and add some content
 588   error_code EC;
 589   StringRef Val("hello there");
 590   {
 591     fs::mapped_file_region mfr(FileDescriptor,
 592                                true,
 593                                fs::mapped_file_region::readwrite,
 594                                4096,
 595                                0,
 596                                EC);
 597     ASSERT_NO_ERROR(EC);
 598     std::copy(Val.begin(), Val.end(), mfr.data());
 599     // Explicitly add a 0.
 600     mfr.data()[Val.size()] = 0;
 601     // Unmap temp file
 602   }
 603
 604   // Map it back in read-only
 605   fs::mapped_file_region mfr(Twine(TempPath),
 606                              fs::mapped_file_region::readonly,
 607                              0,
 608                              0,
 609                              EC);
 610   ASSERT_NO_ERROR(EC);
 611
 612   // Verify content
 613   EXPECT_EQ(StringRef(mfr.const_data()), Val);
 614
 615   // Unmap temp file
 616
 617   fs::mapped_file_region m(Twine(TempPath),
 618                              fs::mapped_file_region::readonly,
 619                              0,
 620                              0,
 621                              EC);
 622   ASSERT_NO_ERROR(EC);
 623   const char *Data = m.const_data();
 624   fs::mapped_file_region mfrrv(std::move(m));
 625   EXPECT_EQ(mfrrv.const_data(), Data);
 626 }
 627
 628 TEST(Support, NormalizePath) {
 629 #if defined(LLVM_ON_WIN32)
 630 #define EXPECT_PATH_IS(path__, windows__, not_windows__)                        \
 631   EXPECT_EQ(path__, windows__);
 632 #else
 633 #define EXPECT_PATH_IS(path__, windows__, not_windows__)                        \
 634   EXPECT_EQ(path__, not_windows__);
 635 #endif
 636
 637   SmallString<64> Path1("a");
 638   SmallString<64> Path2("a/b");
 639   SmallString<64> Path3("a\\b");
 640   SmallString<64> Path4("a\\\\b");
 641   SmallString<64> Path5("\\a");
 642   SmallString<64> Path6("a\\");
 643
 644   ASSERT_NO_ERROR(fs::normalize_separators(Path1));
 645   EXPECT_PATH_IS(Path1, "a", "a");
 646
 647   ASSERT_NO_ERROR(fs::normalize_separators(Path2));
 648   EXPECT_PATH_IS(Path2, "a/b", "a/b");
 649
 650   ASSERT_NO_ERROR(fs::normalize_separators(Path3));
 651   EXPECT_PATH_IS(Path3, "a\\b", "a/b");
 652
 653   ASSERT_NO_ERROR(fs::normalize_separators(Path4));
 654   EXPECT_PATH_IS(Path4, "a\\\\b", "a\\\\b");
 655
 656   ASSERT_NO_ERROR(fs::normalize_separators(Path5));
 657   EXPECT_PATH_IS(Path5, "\\a", "/a");
 658
 659   ASSERT_NO_ERROR(fs::normalize_separators(Path6));
 660   EXPECT_PATH_IS(Path6, "a\\", "a/");
 661
 662 #undef EXPECT_PATH_IS
 663 }
 664 } // anonymous namespace