+ SmallString<32> Relative("foo.cpp");
+ ASSERT_NO_ERROR(sys::fs::make_absolute("/root", Relative));
+ Relative[5] = '/'; // Fix up windows paths.
+ ASSERT_EQ("/root/foo.cpp", Relative);
+}
+
+TEST(Support, RelativePathIterator) {
+ SmallString<64> Path(StringRef("c/d/e/foo.txt"));
+ typedef SmallVector<StringRef, 4> PathComponents;
+ PathComponents ExpectedPathComponents;
+ PathComponents ActualPathComponents;
+
+ StringRef(Path).split(ExpectedPathComponents, '/');
+
+ for (path::const_iterator I = path::begin(Path), E = path::end(Path); I != E;
+ ++I) {
+ ActualPathComponents.push_back(*I);
+ }
+
+ ASSERT_EQ(ExpectedPathComponents.size(), ActualPathComponents.size());
+
+ for (size_t i = 0; i <ExpectedPathComponents.size(); ++i) {
+ EXPECT_EQ(ExpectedPathComponents[i].str(), ActualPathComponents[i].str());
+ }
+}
+
+TEST(Support, RelativePathDotIterator) {
+ SmallString<64> Path(StringRef(".c/.d/../."));
+ typedef SmallVector<StringRef, 4> PathComponents;
+ PathComponents ExpectedPathComponents;
+ PathComponents ActualPathComponents;
+
+ StringRef(Path).split(ExpectedPathComponents, '/');
+
+ for (path::const_iterator I = path::begin(Path), E = path::end(Path); I != E;
+ ++I) {
+ ActualPathComponents.push_back(*I);
+ }
+
+ ASSERT_EQ(ExpectedPathComponents.size(), ActualPathComponents.size());
+
+ for (size_t i = 0; i <ExpectedPathComponents.size(); ++i) {
+ EXPECT_EQ(ExpectedPathComponents[i].str(), ActualPathComponents[i].str());
+ }
+}
+
+TEST(Support, AbsolutePathIterator) {
+ SmallString<64> Path(StringRef("/c/d/e/foo.txt"));
+ typedef SmallVector<StringRef, 4> PathComponents;
+ PathComponents ExpectedPathComponents;
+ PathComponents ActualPathComponents;
+
+ StringRef(Path).split(ExpectedPathComponents, '/');
+
+ // The root path will also be a component when iterating
+ ExpectedPathComponents[0] = "/";
+
+ for (path::const_iterator I = path::begin(Path), E = path::end(Path); I != E;
+ ++I) {
+ ActualPathComponents.push_back(*I);
+ }
+
+ ASSERT_EQ(ExpectedPathComponents.size(), ActualPathComponents.size());
+
+ for (size_t i = 0; i <ExpectedPathComponents.size(); ++i) {
+ EXPECT_EQ(ExpectedPathComponents[i].str(), ActualPathComponents[i].str());
+ }
+}
+
+TEST(Support, AbsolutePathDotIterator) {
+ SmallString<64> Path(StringRef("/.c/.d/../."));
+ typedef SmallVector<StringRef, 4> PathComponents;
+ PathComponents ExpectedPathComponents;
+ PathComponents ActualPathComponents;
+
+ StringRef(Path).split(ExpectedPathComponents, '/');
+
+ // The root path will also be a component when iterating
+ ExpectedPathComponents[0] = "/";
+
+ for (path::const_iterator I = path::begin(Path), E = path::end(Path); I != E;
+ ++I) {
+ ActualPathComponents.push_back(*I);
+ }
+
+ ASSERT_EQ(ExpectedPathComponents.size(), ActualPathComponents.size());
+
+ for (size_t i = 0; i <ExpectedPathComponents.size(); ++i) {
+ EXPECT_EQ(ExpectedPathComponents[i].str(), ActualPathComponents[i].str());
+ }
+}
+
+#ifdef LLVM_ON_WIN32
+TEST(Support, AbsolutePathIteratorWin32) {
+ SmallString<64> Path(StringRef("c:\\c\\e\\foo.txt"));
+ typedef SmallVector<StringRef, 4> PathComponents;
+ PathComponents ExpectedPathComponents;
+ PathComponents ActualPathComponents;
+
+ StringRef(Path).split(ExpectedPathComponents, "\\");
+
+ // The root path (which comes after the drive name) will also be a component
+ // when iterating.
+ ExpectedPathComponents.insert(ExpectedPathComponents.begin()+1, "\\");
+
+ for (path::const_iterator I = path::begin(Path), E = path::end(Path); I != E;
+ ++I) {
+ ActualPathComponents.push_back(*I);
+ }
+
+ ASSERT_EQ(ExpectedPathComponents.size(), ActualPathComponents.size());
+
+ for (size_t i = 0; i <ExpectedPathComponents.size(); ++i) {
+ EXPECT_EQ(ExpectedPathComponents[i].str(), ActualPathComponents[i].str());
+ }
+}
+#endif // LLVM_ON_WIN32
+
+TEST(Support, AbsolutePathIteratorEnd) {
+ // Trailing slashes are converted to '.' unless they are part of the root path.
+ SmallVector<StringRef, 4> Paths;
+ Paths.push_back("/foo/");
+ Paths.push_back("/foo//");
+ Paths.push_back("//net//");
+#ifdef LLVM_ON_WIN32
+ Paths.push_back("c:\\\\");
+#endif
+
+ for (StringRef Path : Paths) {
+ StringRef LastComponent = *path::rbegin(Path);
+ EXPECT_EQ(".", LastComponent);
+ }
+
+ SmallVector<StringRef, 3> RootPaths;
+ RootPaths.push_back("/");
+ RootPaths.push_back("//net/");
+#ifdef LLVM_ON_WIN32
+ RootPaths.push_back("c:\\");
+#endif
+
+ for (StringRef Path : RootPaths) {
+ StringRef LastComponent = *path::rbegin(Path);
+ EXPECT_EQ(1u, LastComponent.size());
+ EXPECT_TRUE(path::is_separator(LastComponent[0]));
+ }
+}
+
+TEST(Support, HomeDirectory) {
+ std::string expected;
+#ifdef LLVM_ON_WIN32
+ if (wchar_t const *path = ::_wgetenv(L"USERPROFILE")) {
+ auto pathLen = ::wcslen(path);
+ ArrayRef<char> ref{reinterpret_cast<char const *>(path),
+ pathLen * sizeof(wchar_t)};
+ convertUTF16ToUTF8String(ref, expected);
+ }
+#else
+ if (char const *path = ::getenv("HOME"))
+ expected = path;
+#endif
+ // Do not try to test it if we don't know what to expect.
+ // On Windows we use something better than env vars.
+ if (!expected.empty()) {
+ SmallString<128> HomeDir;
+ auto status = path::home_directory(HomeDir);
+ EXPECT_TRUE(status);
+ EXPECT_EQ(expected, HomeDir);
+ }
+}
+
+TEST(Support, UserCacheDirectory) {
+ SmallString<13> CacheDir;
+ SmallString<20> CacheDir2;
+ auto Status = path::user_cache_directory(CacheDir, "");
+ EXPECT_TRUE(Status ^ CacheDir.empty());
+
+ if (Status) {
+ EXPECT_TRUE(path::user_cache_directory(CacheDir2, "")); // should succeed
+ EXPECT_EQ(CacheDir, CacheDir2); // and return same paths
+
+ EXPECT_TRUE(path::user_cache_directory(CacheDir, "A", "B", "file.c"));
+ auto It = path::rbegin(CacheDir);
+ EXPECT_EQ("file.c", *It);
+ EXPECT_EQ("B", *++It);
+ EXPECT_EQ("A", *++It);
+ auto ParentDir = *++It;
+
+ // Test Unicode: "<user_cache_dir>/(pi)r^2/aleth.0"
+ EXPECT_TRUE(path::user_cache_directory(CacheDir2, "\xCF\x80r\xC2\xB2",
+ "\xE2\x84\xB5.0"));
+ auto It2 = path::rbegin(CacheDir2);
+ EXPECT_EQ("\xE2\x84\xB5.0", *It2);
+ EXPECT_EQ("\xCF\x80r\xC2\xB2", *++It2);
+ auto ParentDir2 = *++It2;
+
+ EXPECT_EQ(ParentDir, ParentDir2);
+ }
+}
+
+TEST(Support, TempDirectory) {
+ SmallString<32> TempDir;
+ path::system_temp_directory(false, TempDir);
+ EXPECT_TRUE(!TempDir.empty());
+ TempDir.clear();
+ path::system_temp_directory(true, TempDir);
+ EXPECT_TRUE(!TempDir.empty());
+}
+
+static std::string path2regex(std::string Path) {
+ size_t Pos = 0;
+ while ((Pos = Path.find('\\', Pos)) != std::string::npos) {
+ Path.replace(Pos, 1, "\\\\");
+ Pos += 2;
+ }
+ return Path;
+}
+
+/// Helper for running temp dir test in separated process. See below.
+#define EXPECT_TEMP_DIR(prepare, expected) \
+ EXPECT_EXIT( \
+ { \
+ prepare; \
+ SmallString<300> TempDir; \
+ path::system_temp_directory(true, TempDir); \
+ raw_os_ostream(std::cerr) << TempDir; \
+ std::exit(0); \
+ }, \
+ ::testing::ExitedWithCode(0), path2regex(expected))
+
+#ifdef LLVM_ON_WIN32
+TEST(SupportDeathTest, TempDirectoryOnWindows) {
+ // In this test we want to check how system_temp_directory responds to
+ // different values of specific env vars. To prevent corrupting env vars of
+ // the current process all checks are done in separated processes.
+ EXPECT_TEMP_DIR(_wputenv_s(L"TMP", L"C:\\OtherFolder"), "C:\\OtherFolder");
+ EXPECT_TEMP_DIR(_wputenv_s(L"TMP", L"C:/Unix/Path/Seperators"),
+ "C:\\Unix\\Path\\Seperators");
+ EXPECT_TEMP_DIR(_wputenv_s(L"TMP", L"Local Path"), ".+\\Local Path$");
+ EXPECT_TEMP_DIR(
+ _wputenv_s(L"TMP", L"C:\\2\x03C0r-\x00B5\x00B3\\\x2135\x2080"),
+ "C:\\2\xCF\x80r-\xC2\xB5\xC2\xB3\\\xE2\x84\xB5\xE2\x82\x80");
+
+ // Test $TMP empty, $TEMP set.
+ EXPECT_TEMP_DIR(
+ {
+ _wputenv_s(L"TMP", L"");
+ _wputenv_s(L"TEMP", L"C:\\Valid\\Path");
+ },
+ "C:\\Valid\\Path");
+
+ // Test evn var / path with 260 chars.
+ SmallString<270> Expected{"C:\\Temp\\AB\\123456789"};
+ while (Expected.size() < 260)
+ Expected.append("\\DirNameWith19Charss");
+ ASSERT_EQ(260, Expected.size());
+ EXPECT_TEMP_DIR(_putenv_s("TMP", Expected.c_str()), Expected.c_str());
+
+ // Test evn var 261 chars.
+ Expected.append("X");
+ ASSERT_EQ(261, Expected.size());
+ EXPECT_TEMP_DIR(
+ {
+ _putenv_s("TMP", Expected.c_str());
+ _wputenv_s(L"TEMP", L"C:\\Short\\Path");
+ },
+ "C:\\Short\\Path");
+}
+#endif
+
+class FileSystemTest : public testing::Test {
+protected:
+ /// Unique temporary directory in which all created filesystem entities must
+ /// be placed. It is removed at the end of each test (must be empty).
+ SmallString<128> TestDirectory;
+
+ void SetUp() override {
+ ASSERT_NO_ERROR(
+ fs::createUniqueDirectory("file-system-test", TestDirectory));
+ // We don't care about this specific file.
+ errs() << "Test Directory: " << TestDirectory << '\n';
+ errs().flush();
+ }
+
+ void TearDown() override { ASSERT_NO_ERROR(fs::remove(TestDirectory.str())); }
+};
+
+TEST_F(FileSystemTest, Unique) {
+ // Create a temp file.
+ int FileDescriptor;
+ SmallString<64> TempPath;
+ ASSERT_NO_ERROR(
+ fs::createTemporaryFile("prefix", "temp", FileDescriptor, TempPath));
+
+ // The same file should return an identical unique id.
+ fs::UniqueID F1, F2;
+ ASSERT_NO_ERROR(fs::getUniqueID(Twine(TempPath), F1));
+ ASSERT_NO_ERROR(fs::getUniqueID(Twine(TempPath), F2));
+ ASSERT_EQ(F1, F2);
+
+ // Different files should return different unique ids.
+ int FileDescriptor2;
+ SmallString<64> TempPath2;
+ ASSERT_NO_ERROR(
+ fs::createTemporaryFile("prefix", "temp", FileDescriptor2, TempPath2));
+
+ fs::UniqueID D;
+ ASSERT_NO_ERROR(fs::getUniqueID(Twine(TempPath2), D));
+ ASSERT_NE(D, F1);
+ ::close(FileDescriptor2);
+
+ ASSERT_NO_ERROR(fs::remove(Twine(TempPath2)));
+
+ // Two paths representing the same file on disk should still provide the
+ // same unique id. We can test this by making a hard link.
+ ASSERT_NO_ERROR(fs::create_link(Twine(TempPath), Twine(TempPath2)));
+ fs::UniqueID D2;
+ ASSERT_NO_ERROR(fs::getUniqueID(Twine(TempPath2), D2));
+ ASSERT_EQ(D2, F1);
+
+ ::close(FileDescriptor);
+
+ SmallString<128> Dir1;
+ ASSERT_NO_ERROR(
+ fs::createUniqueDirectory("dir1", Dir1));
+ ASSERT_NO_ERROR(fs::getUniqueID(Dir1.c_str(), F1));
+ ASSERT_NO_ERROR(fs::getUniqueID(Dir1.c_str(), F2));
+ ASSERT_EQ(F1, F2);
+
+ SmallString<128> Dir2;
+ ASSERT_NO_ERROR(
+ fs::createUniqueDirectory("dir2", Dir2));
+ ASSERT_NO_ERROR(fs::getUniqueID(Dir2.c_str(), F2));
+ ASSERT_NE(F1, F2);
+}
+
+TEST_F(FileSystemTest, TempFiles) {