1 //===- llvm/unittest/Support/Path.cpp - Path tests ------------------------===//
3 // The LLVM Compiler Infrastructure
5 // This file is distributed under the University of Illinois Open Source
6 // License. See LICENSE.TXT for details.
8 //===----------------------------------------------------------------------===//
10 #include "llvm/Support/Path.h"
11 #include "llvm/Support/Errc.h"
12 #include "llvm/Support/ErrorHandling.h"
13 #include "llvm/Support/FileSystem.h"
14 #include "llvm/Support/MemoryBuffer.h"
15 #include "llvm/Support/raw_ostream.h"
16 #include "gtest/gtest.h"
24 using namespace llvm::sys;
26 #define ASSERT_NO_ERROR(x) \
27 if (std::error_code ASSERT_NO_ERROR_ec = x) { \
28 SmallString<128> MessageStorage; \
29 raw_svector_ostream Message(MessageStorage); \
30 Message << #x ": did not return errc::success.\n" \
31 << "error number: " << ASSERT_NO_ERROR_ec.value() << "\n" \
32 << "error message: " << ASSERT_NO_ERROR_ec.message() << "\n"; \
33 GTEST_FATAL_FAILURE_(MessageStorage.c_str()); \
39 TEST(is_separator, Works) {
40 EXPECT_TRUE(path::is_separator('/'));
41 EXPECT_FALSE(path::is_separator('\0'));
42 EXPECT_FALSE(path::is_separator('-'));
43 EXPECT_FALSE(path::is_separator(' '));
46 EXPECT_TRUE(path::is_separator('\\'));
48 EXPECT_FALSE(path::is_separator('\\'));
53 SmallVector<StringRef, 40> paths;
56 paths.push_back("..");
57 paths.push_back("foo");
59 paths.push_back("/foo");
60 paths.push_back("foo/");
61 paths.push_back("/foo/");
62 paths.push_back("foo/bar");
63 paths.push_back("/foo/bar");
64 paths.push_back("//net");
65 paths.push_back("//net/foo");
66 paths.push_back("///foo///");
67 paths.push_back("///foo///bar");
68 paths.push_back("/.");
69 paths.push_back("./");
70 paths.push_back("/..");
71 paths.push_back("../");
72 paths.push_back("foo/.");
73 paths.push_back("foo/..");
74 paths.push_back("foo/./");
75 paths.push_back("foo/./bar");
76 paths.push_back("foo/..");
77 paths.push_back("foo/../");
78 paths.push_back("foo/../bar");
79 paths.push_back("c:");
80 paths.push_back("c:/");
81 paths.push_back("c:foo");
82 paths.push_back("c:/foo");
83 paths.push_back("c:foo/");
84 paths.push_back("c:/foo/");
85 paths.push_back("c:/foo/bar");
86 paths.push_back("prn:");
87 paths.push_back("c:\\");
88 paths.push_back("c:foo");
89 paths.push_back("c:\\foo");
90 paths.push_back("c:foo\\");
91 paths.push_back("c:\\foo\\");
92 paths.push_back("c:\\foo/");
93 paths.push_back("c:/foo\\bar");
95 SmallVector<StringRef, 5> ComponentStack;
96 for (SmallVector<StringRef, 40>::const_iterator i = paths.begin(),
100 for (sys::path::const_iterator ci = sys::path::begin(*i),
101 ce = sys::path::end(*i);
104 ASSERT_FALSE(ci->empty());
105 ComponentStack.push_back(*ci);
108 for (sys::path::reverse_iterator ci = sys::path::rbegin(*i),
109 ce = sys::path::rend(*i);
112 ASSERT_TRUE(*ci == ComponentStack.back());
113 ComponentStack.pop_back();
115 ASSERT_TRUE(ComponentStack.empty());
117 path::has_root_path(*i);
119 path::has_root_name(*i);
121 path::has_root_directory(*i);
122 path::root_directory(*i);
123 path::has_parent_path(*i);
124 path::parent_path(*i);
125 path::has_filename(*i);
129 path::has_extension(*i);
131 path::is_absolute(*i);
132 path::is_relative(*i);
134 SmallString<128> temp_store;
136 ASSERT_NO_ERROR(fs::make_absolute(temp_store));
138 path::remove_filename(temp_store);
141 path::replace_extension(temp_store, "ext");
142 StringRef filename(temp_store.begin(), temp_store.size()), stem, ext;
143 stem = path::stem(filename);
144 ext = path::extension(filename);
145 EXPECT_EQ(*sys::path::rbegin(filename), (stem + ext).str());
147 path::native(*i, temp_store);
151 TEST(Support, RelativePathIterator) {
152 SmallString<64> Path(StringRef("c/d/e/foo.txt"));
153 typedef SmallVector<StringRef, 4> PathComponents;
154 PathComponents ExpectedPathComponents;
155 PathComponents ActualPathComponents;
157 StringRef(Path).split(ExpectedPathComponents, "/");
159 for (path::const_iterator I = path::begin(Path), E = path::end(Path); I != E;
161 ActualPathComponents.push_back(*I);
164 ASSERT_EQ(ExpectedPathComponents.size(), ActualPathComponents.size());
166 for (size_t i = 0; i <ExpectedPathComponents.size(); ++i) {
167 EXPECT_EQ(ExpectedPathComponents[i].str(), ActualPathComponents[i].str());
171 TEST(Support, RelativePathDotIterator) {
172 SmallString<64> Path(StringRef(".c/.d/../."));
173 typedef SmallVector<StringRef, 4> PathComponents;
174 PathComponents ExpectedPathComponents;
175 PathComponents ActualPathComponents;
177 StringRef(Path).split(ExpectedPathComponents, "/");
179 for (path::const_iterator I = path::begin(Path), E = path::end(Path); I != E;
181 ActualPathComponents.push_back(*I);
184 ASSERT_EQ(ExpectedPathComponents.size(), ActualPathComponents.size());
186 for (size_t i = 0; i <ExpectedPathComponents.size(); ++i) {
187 EXPECT_EQ(ExpectedPathComponents[i].str(), ActualPathComponents[i].str());
191 TEST(Support, AbsolutePathIterator) {
192 SmallString<64> Path(StringRef("/c/d/e/foo.txt"));
193 typedef SmallVector<StringRef, 4> PathComponents;
194 PathComponents ExpectedPathComponents;
195 PathComponents ActualPathComponents;
197 StringRef(Path).split(ExpectedPathComponents, "/");
199 // The root path will also be a component when iterating
200 ExpectedPathComponents[0] = "/";
202 for (path::const_iterator I = path::begin(Path), E = path::end(Path); I != E;
204 ActualPathComponents.push_back(*I);
207 ASSERT_EQ(ExpectedPathComponents.size(), ActualPathComponents.size());
209 for (size_t i = 0; i <ExpectedPathComponents.size(); ++i) {
210 EXPECT_EQ(ExpectedPathComponents[i].str(), ActualPathComponents[i].str());
214 TEST(Support, AbsolutePathDotIterator) {
215 SmallString<64> Path(StringRef("/.c/.d/../."));
216 typedef SmallVector<StringRef, 4> PathComponents;
217 PathComponents ExpectedPathComponents;
218 PathComponents ActualPathComponents;
220 StringRef(Path).split(ExpectedPathComponents, "/");
222 // The root path will also be a component when iterating
223 ExpectedPathComponents[0] = "/";
225 for (path::const_iterator I = path::begin(Path), E = path::end(Path); I != E;
227 ActualPathComponents.push_back(*I);
230 ASSERT_EQ(ExpectedPathComponents.size(), ActualPathComponents.size());
232 for (size_t i = 0; i <ExpectedPathComponents.size(); ++i) {
233 EXPECT_EQ(ExpectedPathComponents[i].str(), ActualPathComponents[i].str());
238 TEST(Support, AbsolutePathIteratorWin32) {
239 SmallString<64> Path(StringRef("c:\\c\\e\\foo.txt"));
240 typedef SmallVector<StringRef, 4> PathComponents;
241 PathComponents ExpectedPathComponents;
242 PathComponents ActualPathComponents;
244 StringRef(Path).split(ExpectedPathComponents, "\\");
246 // The root path (which comes after the drive name) will also be a component
248 ExpectedPathComponents.insert(ExpectedPathComponents.begin()+1, "\\");
250 for (path::const_iterator I = path::begin(Path), E = path::end(Path); I != E;
252 ActualPathComponents.push_back(*I);
255 ASSERT_EQ(ExpectedPathComponents.size(), ActualPathComponents.size());
257 for (size_t i = 0; i <ExpectedPathComponents.size(); ++i) {
258 EXPECT_EQ(ExpectedPathComponents[i].str(), ActualPathComponents[i].str());
261 #endif // LLVM_ON_WIN32
263 TEST(Support, AbsolutePathIteratorEnd) {
264 // Trailing slashes are converted to '.' unless they are part of the root path.
265 SmallVector<StringRef, 4> Paths;
266 Paths.push_back("/foo/");
267 Paths.push_back("/foo//");
268 Paths.push_back("//net//");
270 Paths.push_back("c:\\\\");
273 for (StringRef Path : Paths) {
274 StringRef LastComponent = *path::rbegin(Path);
275 EXPECT_EQ(".", LastComponent);
278 SmallVector<StringRef, 3> RootPaths;
279 RootPaths.push_back("/");
280 RootPaths.push_back("//net/");
282 RootPaths.push_back("c:\\");
285 for (StringRef Path : RootPaths) {
286 StringRef LastComponent = *path::rbegin(Path);
287 EXPECT_EQ(1u, LastComponent.size());
288 EXPECT_TRUE(path::is_separator(LastComponent[0]));
292 TEST(Support, HomeDirectory) {
294 // This test only makes sense on Unix if $HOME is set.
295 if (::getenv("HOME")) {
297 SmallString<128> HomeDir;
298 EXPECT_TRUE(path::home_directory(HomeDir));
299 EXPECT_FALSE(HomeDir.empty());
305 class FileSystemTest : public testing::Test {
307 /// Unique temporary directory in which all created filesystem entities must
308 /// be placed. It is removed at the end of each test (must be empty).
309 SmallString<128> TestDirectory;
311 void SetUp() override {
313 fs::createUniqueDirectory("file-system-test", TestDirectory));
314 // We don't care about this specific file.
315 errs() << "Test Directory: " << TestDirectory << '\n';
319 void TearDown() override { ASSERT_NO_ERROR(fs::remove(TestDirectory.str())); }
322 TEST_F(FileSystemTest, Unique) {
323 // Create a temp file.
325 SmallString<64> TempPath;
327 fs::createTemporaryFile("prefix", "temp", FileDescriptor, TempPath));
329 // The same file should return an identical unique id.
331 ASSERT_NO_ERROR(fs::getUniqueID(Twine(TempPath), F1));
332 ASSERT_NO_ERROR(fs::getUniqueID(Twine(TempPath), F2));
335 // Different files should return different unique ids.
337 SmallString<64> TempPath2;
339 fs::createTemporaryFile("prefix", "temp", FileDescriptor2, TempPath2));
342 ASSERT_NO_ERROR(fs::getUniqueID(Twine(TempPath2), D));
344 ::close(FileDescriptor2);
346 ASSERT_NO_ERROR(fs::remove(Twine(TempPath2)));
348 // Two paths representing the same file on disk should still provide the
349 // same unique id. We can test this by making a hard link.
350 ASSERT_NO_ERROR(fs::create_link(Twine(TempPath), Twine(TempPath2)));
352 ASSERT_NO_ERROR(fs::getUniqueID(Twine(TempPath2), D2));
355 ::close(FileDescriptor);
357 SmallString<128> Dir1;
359 fs::createUniqueDirectory("dir1", Dir1));
360 ASSERT_NO_ERROR(fs::getUniqueID(Dir1.c_str(), F1));
361 ASSERT_NO_ERROR(fs::getUniqueID(Dir1.c_str(), F2));
364 SmallString<128> Dir2;
366 fs::createUniqueDirectory("dir2", Dir2));
367 ASSERT_NO_ERROR(fs::getUniqueID(Dir2.c_str(), F2));
371 TEST_F(FileSystemTest, TempFiles) {
372 // Create a temp file.
374 SmallString<64> TempPath;
376 fs::createTemporaryFile("prefix", "temp", FileDescriptor, TempPath));
378 // Make sure it exists.
379 ASSERT_TRUE(sys::fs::exists(Twine(TempPath)));
381 // Create another temp tile.
383 SmallString<64> TempPath2;
384 ASSERT_NO_ERROR(fs::createTemporaryFile("prefix", "temp", FD2, TempPath2));
385 ASSERT_TRUE(TempPath2.endswith(".temp"));
386 ASSERT_NE(TempPath.str(), TempPath2.str());
388 fs::file_status A, B;
389 ASSERT_NO_ERROR(fs::status(Twine(TempPath), A));
390 ASSERT_NO_ERROR(fs::status(Twine(TempPath2), B));
391 EXPECT_FALSE(fs::equivalent(A, B));
396 ASSERT_NO_ERROR(fs::remove(Twine(TempPath2)));
397 ASSERT_NO_ERROR(fs::remove(Twine(TempPath2)));
398 ASSERT_EQ(fs::remove(Twine(TempPath2), false),
399 errc::no_such_file_or_directory);
401 std::error_code EC = fs::status(TempPath2.c_str(), B);
402 EXPECT_EQ(EC, errc::no_such_file_or_directory);
403 EXPECT_EQ(B.type(), fs::file_type::file_not_found);
405 // Make sure Temp2 doesn't exist.
406 ASSERT_EQ(fs::access(Twine(TempPath2), sys::fs::AccessMode::Exist),
407 errc::no_such_file_or_directory);
409 SmallString<64> TempPath3;
410 ASSERT_NO_ERROR(fs::createTemporaryFile("prefix", "", TempPath3));
411 ASSERT_FALSE(TempPath3.endswith("."));
413 // Create a hard link to Temp1.
414 ASSERT_NO_ERROR(fs::create_link(Twine(TempPath), Twine(TempPath2)));
416 ASSERT_NO_ERROR(fs::equivalent(Twine(TempPath), Twine(TempPath2), equal));
418 ASSERT_NO_ERROR(fs::status(Twine(TempPath), A));
419 ASSERT_NO_ERROR(fs::status(Twine(TempPath2), B));
420 EXPECT_TRUE(fs::equivalent(A, B));
423 ::close(FileDescriptor);
424 ASSERT_NO_ERROR(fs::remove(Twine(TempPath)));
426 // Remove the hard link.
427 ASSERT_NO_ERROR(fs::remove(Twine(TempPath2)));
429 // Make sure Temp1 doesn't exist.
430 ASSERT_EQ(fs::access(Twine(TempPath), sys::fs::AccessMode::Exist),
431 errc::no_such_file_or_directory);
434 // Path name > 260 chars should get an error.
435 const char *Path270 =
436 "abcdefghijklmnopqrstuvwxyz9abcdefghijklmnopqrstuvwxyz8"
437 "abcdefghijklmnopqrstuvwxyz7abcdefghijklmnopqrstuvwxyz6"
438 "abcdefghijklmnopqrstuvwxyz5abcdefghijklmnopqrstuvwxyz4"
439 "abcdefghijklmnopqrstuvwxyz3abcdefghijklmnopqrstuvwxyz2"
440 "abcdefghijklmnopqrstuvwxyz1abcdefghijklmnopqrstuvwxyz0";
441 EXPECT_EQ(fs::createUniqueFile(Path270, FileDescriptor, TempPath),
442 errc::invalid_argument);
443 // Relative path < 247 chars, no problem.
444 const char *Path216 =
445 "abcdefghijklmnopqrstuvwxyz7abcdefghijklmnopqrstuvwxyz6"
446 "abcdefghijklmnopqrstuvwxyz5abcdefghijklmnopqrstuvwxyz4"
447 "abcdefghijklmnopqrstuvwxyz3abcdefghijklmnopqrstuvwxyz2"
448 "abcdefghijklmnopqrstuvwxyz1abcdefghijklmnopqrstuvwxyz0";
449 ASSERT_NO_ERROR(fs::createTemporaryFile(Path216, "", TempPath));
450 ASSERT_NO_ERROR(fs::remove(Twine(TempPath)));
454 TEST_F(FileSystemTest, CreateDir) {
455 ASSERT_NO_ERROR(fs::create_directory(Twine(TestDirectory) + "foo"));
456 ASSERT_NO_ERROR(fs::create_directory(Twine(TestDirectory) + "foo"));
457 ASSERT_EQ(fs::create_directory(Twine(TestDirectory) + "foo", false),
459 ASSERT_NO_ERROR(fs::remove(Twine(TestDirectory) + "foo"));
462 // Prove that create_directories() can handle a pathname > 248 characters,
463 // which is the documented limit for CreateDirectory().
464 // (248 is MAX_PATH subtracting room for an 8.3 filename.)
465 // Generate a directory path guaranteed to fall into that range.
466 size_t TmpLen = TestDirectory.size();
467 const char *OneDir = "\\123456789";
468 size_t OneDirLen = strlen(OneDir);
469 ASSERT_LT(OneDirLen, 12U);
470 size_t NLevels = ((248 - TmpLen) / OneDirLen) + 1;
471 SmallString<260> LongDir(TestDirectory);
472 for (size_t I = 0; I < NLevels; ++I)
473 LongDir.append(OneDir);
474 ASSERT_NO_ERROR(fs::create_directories(Twine(LongDir)));
475 ASSERT_NO_ERROR(fs::create_directories(Twine(LongDir)));
476 ASSERT_EQ(fs::create_directories(Twine(LongDir), false),
478 // Tidy up, "recursively" removing the directories.
479 StringRef ThisDir(LongDir);
480 for (size_t J = 0; J < NLevels; ++J) {
481 ASSERT_NO_ERROR(fs::remove(ThisDir));
482 ThisDir = path::parent_path(ThisDir);
485 // Similarly for a relative pathname. Need to set the current directory to
486 // TestDirectory so that the one we create ends up in the right place.
487 char PreviousDir[260];
488 size_t PreviousDirLen = ::GetCurrentDirectoryA(260, PreviousDir);
489 ASSERT_GT(PreviousDirLen, 0U);
490 ASSERT_LT(PreviousDirLen, 260U);
491 ASSERT_NE(::SetCurrentDirectoryA(TestDirectory.c_str()), 0);
493 // Generate a relative directory name with absolute length > 248.
494 size_t LongDirLen = 249 - TestDirectory.size();
495 LongDir.assign(LongDirLen, 'a');
496 ASSERT_NO_ERROR(fs::create_directory(Twine(LongDir)));
497 // While we're here, prove that .. and . handling works in these long paths.
498 const char *DotDotDirs = "\\..\\.\\b";
499 LongDir.append(DotDotDirs);
500 ASSERT_NO_ERROR(fs::create_directory("b"));
501 ASSERT_EQ(fs::create_directory(Twine(LongDir), false), errc::file_exists);
503 ASSERT_NO_ERROR(fs::remove("b"));
504 ASSERT_NO_ERROR(fs::remove(
505 Twine(LongDir.substr(0, LongDir.size() - strlen(DotDotDirs)))));
506 ASSERT_NE(::SetCurrentDirectoryA(PreviousDir), 0);
510 TEST_F(FileSystemTest, DirectoryIteration) {
512 for (fs::directory_iterator i(".", ec), e; i != e; i.increment(ec))
515 // Create a known hierarchy to recurse over.
517 fs::create_directories(Twine(TestDirectory) + "/recursive/a0/aa1"));
519 fs::create_directories(Twine(TestDirectory) + "/recursive/a0/ab1"));
520 ASSERT_NO_ERROR(fs::create_directories(Twine(TestDirectory) +
521 "/recursive/dontlookhere/da1"));
523 fs::create_directories(Twine(TestDirectory) + "/recursive/z0/za1"));
525 fs::create_directories(Twine(TestDirectory) + "/recursive/pop/p1"));
526 typedef std::vector<std::string> v_t;
528 for (fs::recursive_directory_iterator i(Twine(TestDirectory)
529 + "/recursive", ec), e; i != e; i.increment(ec)){
531 if (path::filename(i->path()) == "p1") {
533 // FIXME: recursive_directory_iterator should be more robust.
536 if (path::filename(i->path()) == "dontlookhere")
538 visited.push_back(path::filename(i->path()));
540 v_t::const_iterator a0 = std::find(visited.begin(), visited.end(), "a0");
541 v_t::const_iterator aa1 = std::find(visited.begin(), visited.end(), "aa1");
542 v_t::const_iterator ab1 = std::find(visited.begin(), visited.end(), "ab1");
543 v_t::const_iterator dontlookhere = std::find(visited.begin(), visited.end(),
545 v_t::const_iterator da1 = std::find(visited.begin(), visited.end(), "da1");
546 v_t::const_iterator z0 = std::find(visited.begin(), visited.end(), "z0");
547 v_t::const_iterator za1 = std::find(visited.begin(), visited.end(), "za1");
548 v_t::const_iterator pop = std::find(visited.begin(), visited.end(), "pop");
549 v_t::const_iterator p1 = std::find(visited.begin(), visited.end(), "p1");
551 // Make sure that each path was visited correctly.
552 ASSERT_NE(a0, visited.end());
553 ASSERT_NE(aa1, visited.end());
554 ASSERT_NE(ab1, visited.end());
555 ASSERT_NE(dontlookhere, visited.end());
556 ASSERT_EQ(da1, visited.end()); // Not visited.
557 ASSERT_NE(z0, visited.end());
558 ASSERT_NE(za1, visited.end());
559 ASSERT_NE(pop, visited.end());
560 ASSERT_EQ(p1, visited.end()); // Not visited.
562 // Make sure that parents were visited before children. No other ordering
563 // guarantees can be made across siblings.
568 ASSERT_NO_ERROR(fs::remove(Twine(TestDirectory) + "/recursive/a0/aa1"));
569 ASSERT_NO_ERROR(fs::remove(Twine(TestDirectory) + "/recursive/a0/ab1"));
570 ASSERT_NO_ERROR(fs::remove(Twine(TestDirectory) + "/recursive/a0"));
572 fs::remove(Twine(TestDirectory) + "/recursive/dontlookhere/da1"));
573 ASSERT_NO_ERROR(fs::remove(Twine(TestDirectory) + "/recursive/dontlookhere"));
574 ASSERT_NO_ERROR(fs::remove(Twine(TestDirectory) + "/recursive/pop/p1"));
575 ASSERT_NO_ERROR(fs::remove(Twine(TestDirectory) + "/recursive/pop"));
576 ASSERT_NO_ERROR(fs::remove(Twine(TestDirectory) + "/recursive/z0/za1"));
577 ASSERT_NO_ERROR(fs::remove(Twine(TestDirectory) + "/recursive/z0"));
578 ASSERT_NO_ERROR(fs::remove(Twine(TestDirectory) + "/recursive"));
581 const char archive[] = "!<arch>\x0A";
582 const char bitcode[] = "\xde\xc0\x17\x0b";
583 const char coff_object[] = "\x00\x00......";
584 const char coff_bigobj[] = "\x00\x00\xff\xff\x00\x02......"
585 "\xc7\xa1\xba\xd1\xee\xba\xa9\x4b\xaf\x20\xfa\xf6\x6a\xa4\xdc\xb8";
586 const char coff_import_library[] = "\x00\x00\xff\xff....";
587 const char elf_relocatable[] = { 0x7f, 'E', 'L', 'F', 1, 2, 1, 0, 0,
588 0, 0, 0, 0, 0, 0, 0, 0, 1 };
589 const char macho_universal_binary[] = "\xca\xfe\xba\xbe...\0x00";
590 const char macho_object[] = "\xfe\xed\xfa\xce..........\x00\x01";
591 const char macho_executable[] = "\xfe\xed\xfa\xce..........\x00\x02";
592 const char macho_fixed_virtual_memory_shared_lib[] =
593 "\xfe\xed\xfa\xce..........\x00\x03";
594 const char macho_core[] = "\xfe\xed\xfa\xce..........\x00\x04";
595 const char macho_preload_executable[] = "\xfe\xed\xfa\xce..........\x00\x05";
596 const char macho_dynamically_linked_shared_lib[] =
597 "\xfe\xed\xfa\xce..........\x00\x06";
598 const char macho_dynamic_linker[] = "\xfe\xed\xfa\xce..........\x00\x07";
599 const char macho_bundle[] = "\xfe\xed\xfa\xce..........\x00\x08";
600 const char macho_dsym_companion[] = "\xfe\xed\xfa\xce..........\x00\x0a";
601 const char macho_kext_bundle[] = "\xfe\xed\xfa\xce..........\x00\x0b";
602 const char windows_resource[] = "\x00\x00\x00\x00\x020\x00\x00\x00\xff";
603 const char macho_dynamically_linked_shared_lib_stub[] =
604 "\xfe\xed\xfa\xce..........\x00\x09";
606 TEST_F(FileSystemTest, Magic) {
608 const char *filename;
609 const char *magic_str;
610 size_t magic_str_len;
611 fs::file_magic magic;
613 #define DEFINE(magic) \
614 { #magic, magic, sizeof(magic), fs::file_magic::magic }
618 { "coff_bigobj", coff_bigobj, sizeof(coff_bigobj), fs::file_magic::coff_object },
619 DEFINE(coff_import_library),
620 DEFINE(elf_relocatable),
621 DEFINE(macho_universal_binary),
622 DEFINE(macho_object),
623 DEFINE(macho_executable),
624 DEFINE(macho_fixed_virtual_memory_shared_lib),
626 DEFINE(macho_preload_executable),
627 DEFINE(macho_dynamically_linked_shared_lib),
628 DEFINE(macho_dynamic_linker),
629 DEFINE(macho_bundle),
630 DEFINE(macho_dynamically_linked_shared_lib_stub),
631 DEFINE(macho_dsym_companion),
632 DEFINE(macho_kext_bundle),
633 DEFINE(windows_resource)
637 // Create some files filled with magic.
638 for (type *i = types, *e = types + (sizeof(types) / sizeof(type)); i != e;
640 SmallString<128> file_pathname(TestDirectory);
641 path::append(file_pathname, i->filename);
643 raw_fd_ostream file(file_pathname, EC, sys::fs::F_None);
644 ASSERT_FALSE(file.has_error());
645 StringRef magic(i->magic_str, i->magic_str_len);
648 EXPECT_EQ(i->magic, fs::identify_magic(magic));
649 ASSERT_NO_ERROR(fs::remove(Twine(file_pathname)));
654 TEST_F(FileSystemTest, CarriageReturn) {
655 SmallString<128> FilePathname(TestDirectory);
657 path::append(FilePathname, "test");
660 raw_fd_ostream File(FilePathname, EC, sys::fs::F_Text);
665 auto Buf = MemoryBuffer::getFile(FilePathname.str());
666 EXPECT_TRUE((bool)Buf);
667 EXPECT_EQ(Buf.get()->getBuffer(), "\r\n");
671 raw_fd_ostream File(FilePathname, EC, sys::fs::F_None);
676 auto Buf = MemoryBuffer::getFile(FilePathname.str());
677 EXPECT_TRUE((bool)Buf);
678 EXPECT_EQ(Buf.get()->getBuffer(), "\n");
680 ASSERT_NO_ERROR(fs::remove(Twine(FilePathname)));
684 TEST_F(FileSystemTest, Resize) {
686 SmallString<64> TempPath;
687 ASSERT_NO_ERROR(fs::createTemporaryFile("prefix", "temp", FD, TempPath));
688 ASSERT_NO_ERROR(fs::resize_file(FD, 123));
689 fs::file_status Status;
690 ASSERT_NO_ERROR(fs::status(FD, Status));
691 ASSERT_EQ(Status.getSize(), 123U);
694 TEST_F(FileSystemTest, FileMapping) {
695 // Create a temp file.
697 SmallString<64> TempPath;
699 fs::createTemporaryFile("prefix", "temp", FileDescriptor, TempPath));
700 unsigned Size = 4096;
701 ASSERT_NO_ERROR(fs::resize_file(FileDescriptor, Size));
703 // Map in temp file and add some content
705 StringRef Val("hello there");
707 fs::mapped_file_region mfr(FileDescriptor,
708 fs::mapped_file_region::readwrite, Size, 0, EC);
710 std::copy(Val.begin(), Val.end(), mfr.data());
711 // Explicitly add a 0.
712 mfr.data()[Val.size()] = 0;
716 // Map it back in read-only
718 EC = fs::openFileForRead(Twine(TempPath), FD);
720 fs::mapped_file_region mfr(FD, fs::mapped_file_region::readonly, Size, 0, EC);
724 EXPECT_EQ(StringRef(mfr.const_data()), Val);
727 fs::mapped_file_region m(FD, fs::mapped_file_region::readonly, Size, 0, EC);
729 ASSERT_EQ(close(FD), 0);
732 TEST(Support, NormalizePath) {
733 #if defined(LLVM_ON_WIN32)
734 #define EXPECT_PATH_IS(path__, windows__, not_windows__) \
735 EXPECT_EQ(path__, windows__);
737 #define EXPECT_PATH_IS(path__, windows__, not_windows__) \
738 EXPECT_EQ(path__, not_windows__);
741 SmallString<64> Path1("a");
742 SmallString<64> Path2("a/b");
743 SmallString<64> Path3("a\\b");
744 SmallString<64> Path4("a\\\\b");
745 SmallString<64> Path5("\\a");
746 SmallString<64> Path6("a\\");
749 EXPECT_PATH_IS(Path1, "a", "a");
752 EXPECT_PATH_IS(Path2, "a\\b", "a/b");
755 EXPECT_PATH_IS(Path3, "a\\b", "a/b");
758 EXPECT_PATH_IS(Path4, "a\\\\b", "a\\\\b");
761 EXPECT_PATH_IS(Path5, "\\a", "/a");
764 EXPECT_PATH_IS(Path6, "a\\", "a/");
766 #undef EXPECT_PATH_IS
768 } // anonymous namespace