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
TEST(is_separator,Works)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
TEST(Support,Path)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
TEST(Support,RelativePathIterator)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
TEST(Support,RelativePathDotIterator)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
TEST(Support,AbsolutePathIterator)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
TEST(Support,AbsolutePathDotIterator)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
TEST(Support,AbsolutePathIteratorWin32)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
TEST(Support,AbsolutePathIteratorEnd)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
TEST(Support,HomeDirectory)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
TEST(Support,UserCacheDirectory)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
TEST(Support,TempDirectory)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
path2regex(std::string Path)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
TEST(SupportDeathTest,TempDirectoryOnWindows)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
SetUp()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
TearDown()439 void TearDown() override { ASSERT_NO_ERROR(fs::remove(TestDirectory.str())); }
440 };
441
TEST_F(FileSystemTest,Unique)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
TEST_F(FileSystemTest,TempFiles)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
TEST_F(FileSystemTest,CreateDir)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
TEST_F(FileSystemTest,DirectoryIteration)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
TEST_F(FileSystemTest,Magic)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
TEST_F(FileSystemTest,CarriageReturn)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
TEST_F(FileSystemTest,Resize)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
TEST_F(FileSystemTest,FileMapping)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
TEST(Support,NormalizePath)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
TEST(Support,RemoveLeadingDotSlash)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
remove_dots(StringRef path,bool remove_dot_dot)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
TEST(Support,RemoveDots)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
TEST(Support,ReplacePathPrefix)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
TEST_F(FileSystemTest,PathFromFD)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
TEST_F(FileSystemTest,PathFromFDWin32)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
TEST_F(FileSystemTest,PathFromFDUnicode)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
TEST_F(FileSystemTest,OpenFileForRead)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