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/PathV2.h"
11 #include "llvm/Support/ErrorHandling.h"
12 #include "llvm/Support/FileSystem.h"
13 #include "llvm/Support/raw_ostream.h"
14 #include "gtest/gtest.h"
17 using namespace llvm::sys;
19 #define ASSERT_NO_ERROR(x) \
20 if (error_code ASSERT_NO_ERROR_ec = x) { \
21 SmallString<128> MessageStorage; \
22 raw_svector_ostream Message(MessageStorage); \
23 Message << #x ": did not return errc::success.\n" \
24 << "error number: " << ASSERT_NO_ERROR_ec.value() << "\n" \
25 << "error message: " << ASSERT_NO_ERROR_ec.message() << "\n"; \
26 GTEST_FATAL_FAILURE_(MessageStorage.c_str()); \
31 TEST(is_separator, Works) {
32 EXPECT_TRUE(path::is_separator('/'));
33 EXPECT_FALSE(path::is_separator('\0'));
34 EXPECT_FALSE(path::is_separator('-'));
35 EXPECT_FALSE(path::is_separator(' '));
38 EXPECT_TRUE(path::is_separator('\\'));
40 EXPECT_FALSE(path::is_separator('\\'));
45 SmallVector<StringRef, 40> paths;
48 paths.push_back("..");
49 paths.push_back("foo");
51 paths.push_back("/foo");
52 paths.push_back("foo/");
53 paths.push_back("/foo/");
54 paths.push_back("foo/bar");
55 paths.push_back("/foo/bar");
56 paths.push_back("//net");
57 paths.push_back("//net/foo");
58 paths.push_back("///foo///");
59 paths.push_back("///foo///bar");
60 paths.push_back("/.");
61 paths.push_back("./");
62 paths.push_back("/..");
63 paths.push_back("../");
64 paths.push_back("foo/.");
65 paths.push_back("foo/..");
66 paths.push_back("foo/./");
67 paths.push_back("foo/./bar");
68 paths.push_back("foo/..");
69 paths.push_back("foo/../");
70 paths.push_back("foo/../bar");
71 paths.push_back("c:");
72 paths.push_back("c:/");
73 paths.push_back("c:foo");
74 paths.push_back("c:/foo");
75 paths.push_back("c:foo/");
76 paths.push_back("c:/foo/");
77 paths.push_back("c:/foo/bar");
78 paths.push_back("prn:");
79 paths.push_back("c:\\");
80 paths.push_back("c:foo");
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");
87 for (SmallVector<StringRef, 40>::const_iterator i = paths.begin(),
91 for (sys::path::const_iterator ci = sys::path::begin(*i),
92 ce = sys::path::end(*i);
95 ASSERT_FALSE(ci->empty());
98 #if 0 // Valgrind is whining about this.
99 outs() << " Reverse Iteration: [";
100 for (sys::path::reverse_iterator ci = sys::path::rbegin(*i),
101 ce = sys::path::rend(*i);
104 outs() << *ci << ',';
109 path::has_root_path(*i);
111 path::has_root_name(*i);
113 path::has_root_directory(*i);
114 path::root_directory(*i);
115 path::has_parent_path(*i);
116 path::parent_path(*i);
117 path::has_filename(*i);
121 path::has_extension(*i);
123 path::is_absolute(*i);
124 path::is_relative(*i);
126 SmallString<128> temp_store;
128 ASSERT_NO_ERROR(fs::make_absolute(temp_store));
130 path::remove_filename(temp_store);
133 path::replace_extension(temp_store, "ext");
134 StringRef filename(temp_store.begin(), temp_store.size()), stem, ext;
135 stem = path::stem(filename);
136 ext = path::extension(filename);
137 EXPECT_EQ(*(--sys::path::end(filename)), (stem + ext).str());
139 path::native(*i, temp_store);
143 class FileSystemTest : public testing::Test {
145 /// Unique temporary directory in which all created filesystem entities must
146 /// be placed. It is recursively removed at the end of each test.
147 SmallString<128> TestDirectory;
149 virtual void SetUp() {
152 fs::unique_file("file-system-test-%%-%%-%%-%%/test-directory.anchor", fd,
154 // We don't care about this specific file.
156 TestDirectory = path::parent_path(TestDirectory);
157 errs() << "Test Directory: " << TestDirectory << '\n';
161 virtual void TearDown() {
163 ASSERT_NO_ERROR(fs::remove_all(TestDirectory.str(), removed));
167 TEST_F(FileSystemTest, TempFiles) {
168 // Create a temp file.
170 SmallString<64> TempPath;
172 fs::unique_file("%%-%%-%%-%%.temp", FileDescriptor, TempPath));
174 // Make sure it exists.
176 ASSERT_NO_ERROR(sys::fs::exists(Twine(TempPath), TempFileExists));
177 EXPECT_TRUE(TempFileExists);
179 // Create another temp tile.
181 SmallString<64> TempPath2;
182 ASSERT_NO_ERROR(fs::unique_file("%%-%%-%%-%%.temp", FD2, TempPath2));
183 ASSERT_NE(TempPath.str(), TempPath2.str());
185 fs::file_status A, B;
186 ASSERT_NO_ERROR(fs::status(Twine(TempPath), A));
187 ASSERT_NO_ERROR(fs::status(Twine(TempPath2), B));
188 EXPECT_FALSE(fs::equivalent(A, B));
190 // Try to copy the first to the second.
192 fs::copy_file(Twine(TempPath), Twine(TempPath2)), errc::file_exists);
195 // Try again with the proper options.
196 ASSERT_NO_ERROR(fs::copy_file(Twine(TempPath), Twine(TempPath2),
197 fs::copy_option::overwrite_if_exists));
199 ASSERT_NO_ERROR(fs::remove(Twine(TempPath2), TempFileExists));
200 EXPECT_TRUE(TempFileExists);
202 // Make sure Temp2 doesn't exist.
203 ASSERT_NO_ERROR(fs::exists(Twine(TempPath2), TempFileExists));
204 EXPECT_FALSE(TempFileExists);
206 // Create a hard link to Temp1.
207 ASSERT_NO_ERROR(fs::create_hard_link(Twine(TempPath), Twine(TempPath2)));
209 ASSERT_NO_ERROR(fs::equivalent(Twine(TempPath), Twine(TempPath2), equal));
211 ASSERT_NO_ERROR(fs::status(Twine(TempPath), A));
212 ASSERT_NO_ERROR(fs::status(Twine(TempPath2), B));
213 EXPECT_TRUE(fs::equivalent(A, B));
216 ::close(FileDescriptor);
217 ASSERT_NO_ERROR(fs::remove(Twine(TempPath), TempFileExists));
218 EXPECT_TRUE(TempFileExists);
220 // Remove the hard link.
221 ASSERT_NO_ERROR(fs::remove(Twine(TempPath2), TempFileExists));
222 EXPECT_TRUE(TempFileExists);
224 // Make sure Temp1 doesn't exist.
225 ASSERT_NO_ERROR(fs::exists(Twine(TempPath), TempFileExists));
226 EXPECT_FALSE(TempFileExists);
229 TEST_F(FileSystemTest, DirectoryIteration) {
231 for (fs::directory_iterator i(".", ec), e; i != e; i.increment(ec))
234 // Create a known hierarchy to recurse over.
236 ASSERT_NO_ERROR(fs::create_directories(Twine(TestDirectory)
237 + "/recursive/a0/aa1", existed));
238 ASSERT_NO_ERROR(fs::create_directories(Twine(TestDirectory)
239 + "/recursive/a0/ab1", existed));
240 ASSERT_NO_ERROR(fs::create_directories(Twine(TestDirectory)
241 + "/recursive/dontlookhere/da1", existed));
242 ASSERT_NO_ERROR(fs::create_directories(Twine(TestDirectory)
243 + "/recursive/z0/za1", existed));
244 ASSERT_NO_ERROR(fs::create_directories(Twine(TestDirectory)
245 + "/recursive/pop/p1", existed));
246 typedef std::vector<std::string> v_t;
248 for (fs::recursive_directory_iterator i(Twine(TestDirectory)
249 + "/recursive", ec), e; i != e; i.increment(ec)){
251 if (path::filename(i->path()) == "p1") {
253 // FIXME: recursive_directory_iterator should be more robust.
256 if (path::filename(i->path()) == "dontlookhere")
258 visited.push_back(path::filename(i->path()));
260 v_t::const_iterator a0 = std::find(visited.begin(), visited.end(), "a0");
261 v_t::const_iterator aa1 = std::find(visited.begin(), visited.end(), "aa1");
262 v_t::const_iterator ab1 = std::find(visited.begin(), visited.end(), "ab1");
263 v_t::const_iterator dontlookhere = std::find(visited.begin(), visited.end(),
265 v_t::const_iterator da1 = std::find(visited.begin(), visited.end(), "da1");
266 v_t::const_iterator z0 = std::find(visited.begin(), visited.end(), "z0");
267 v_t::const_iterator za1 = std::find(visited.begin(), visited.end(), "za1");
268 v_t::const_iterator pop = std::find(visited.begin(), visited.end(), "pop");
269 v_t::const_iterator p1 = std::find(visited.begin(), visited.end(), "p1");
271 // Make sure that each path was visited correctly.
272 ASSERT_NE(a0, visited.end());
273 ASSERT_NE(aa1, visited.end());
274 ASSERT_NE(ab1, visited.end());
275 ASSERT_NE(dontlookhere, visited.end());
276 ASSERT_EQ(da1, visited.end()); // Not visited.
277 ASSERT_NE(z0, visited.end());
278 ASSERT_NE(za1, visited.end());
279 ASSERT_NE(pop, visited.end());
280 ASSERT_EQ(p1, visited.end()); // Not visited.
282 // Make sure that parents were visited before children. No other ordering
283 // guarantees can be made across siblings.
289 TEST_F(FileSystemTest, Magic) {
291 const char *filename;
292 const char *magic_str;
293 size_t magic_str_len;
294 } types [] = {{"magic.archive", "!<arch>\x0A", 8}};
296 // Create some files filled with magic.
297 for (type *i = types, *e = types + (sizeof(types) / sizeof(type)); i != e;
299 SmallString<128> file_pathname(TestDirectory);
300 path::append(file_pathname, i->filename);
302 raw_fd_ostream file(file_pathname.c_str(), ErrMsg,
303 raw_fd_ostream::F_Binary);
304 ASSERT_FALSE(file.has_error());
305 StringRef magic(i->magic_str, i->magic_str_len);
309 ASSERT_NO_ERROR(fs::has_magic(file_pathname.c_str(), magic, res));
314 #if !defined(_WIN32) // FIXME: Win32 has different permission schema.
315 TEST_F(FileSystemTest, Permissions) {
316 // Create a temp file.
318 SmallString<64> TempPath;
320 fs::unique_file("%%-%%-%%-%%.temp", FileDescriptor, TempPath));
322 // Mark file as read-only
323 const fs::perms AllWrite = fs::owner_write|fs::group_write|fs::others_write;
324 ASSERT_NO_ERROR(fs::permissions(Twine(TempPath), fs::remove_perms|AllWrite));
326 // Verify file is read-only
327 fs::file_status Status;
328 ASSERT_NO_ERROR(fs::status(Twine(TempPath), Status));
329 bool AnyWriteBits = (Status.permissions() & AllWrite);
330 EXPECT_FALSE(AnyWriteBits);
332 // Mark file as read-write
333 ASSERT_NO_ERROR(fs::permissions(Twine(TempPath), fs::add_perms|AllWrite));
335 // Verify file is read-write
336 ASSERT_NO_ERROR(fs::status(Twine(TempPath), Status));
337 AnyWriteBits = (Status.permissions() & AllWrite);
338 EXPECT_TRUE(AnyWriteBits);
342 TEST_F(FileSystemTest, FileMapping) {
343 // Create a temp file.
345 SmallString<64> TempPath;
347 fs::unique_file("%%-%%-%%-%%.temp", FileDescriptor, TempPath));
348 // Map in temp file and add some content
350 StringRef Val("hello there");
352 fs::mapped_file_region mfr(FileDescriptor,
353 fs::mapped_file_region::readwrite,
358 std::copy(Val.begin(), Val.end(), mfr.data());
359 // Explicitly add a 0.
360 mfr.data()[Val.size()] = 0;
364 // Map it back in read-only
365 fs::mapped_file_region mfr(Twine(TempPath),
366 fs::mapped_file_region::readonly,
373 EXPECT_EQ(StringRef(mfr.const_data()), Val);
377 #if LLVM_HAS_RVALUE_REFERENCES
378 fs::mapped_file_region m(Twine(TempPath),
379 fs::mapped_file_region::readonly,
384 const char *Data = m.const_data();
385 fs::mapped_file_region mfrrv(llvm_move(m));
386 EXPECT_EQ(mfrrv.const_data(), Data);
389 } // anonymous namespace