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