X-Git-Url: http://demsky.eecs.uci.edu/git/?a=blobdiff_plain;f=unittests%2FSupport%2FPath.cpp;h=9a68e08f9c9cb003dfb240fc5e8110a99192ad11;hb=7172b38af7ed5d1c1e2c97fadfb0ae0c19aff816;hp=60d08bc92dbec262a459175f939a1087a77bac40;hpb=63cc3a85cc10093f83f76ea9192f77929b58569e;p=oota-llvm.git diff --git a/unittests/Support/Path.cpp b/unittests/Support/Path.cpp index 60d08bc92db..9a68e08f9c9 100644 --- a/unittests/Support/Path.cpp +++ b/unittests/Support/Path.cpp @@ -7,11 +7,10 @@ // //===----------------------------------------------------------------------===// -#include "llvm/Support/FileSystem.h" -#include "llvm/Support/PathV2.h" +#include "llvm/Support/Path.h" #include "llvm/Support/ErrorHandling.h" +#include "llvm/Support/FileSystem.h" #include "llvm/Support/raw_ostream.h" - #include "gtest/gtest.h" using namespace llvm; @@ -148,13 +147,9 @@ protected: SmallString<128> TestDirectory; virtual void SetUp() { - int fd; ASSERT_NO_ERROR( - fs::unique_file("file-system-test-%%-%%-%%-%%/test-directory.anchor", fd, - TestDirectory)); + fs::createUniqueDirectory("file-system-test", TestDirectory)); // We don't care about this specific file. - ::close(fd); - TestDirectory = path::parent_path(TestDirectory); errs() << "Test Directory: " << TestDirectory << '\n'; errs().flush(); } @@ -165,12 +160,48 @@ protected: } }; +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. + uint64_t 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)); + + uint64_t 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_hard_link(Twine(TempPath), Twine(TempPath2))); + uint64_t D2; + ASSERT_NO_ERROR(fs::getUniqueID(Twine(TempPath2), D2)); + ASSERT_EQ(D2, F1); + + ::close(FileDescriptor); +} + TEST_F(FileSystemTest, TempFiles) { // Create a temp file. int FileDescriptor; SmallString<64> TempPath; ASSERT_NO_ERROR( - fs::unique_file("%%-%%-%%-%%.temp", FileDescriptor, TempPath)); + fs::createTemporaryFile("prefix", "temp", FileDescriptor, TempPath)); // Make sure it exists. bool TempFileExists; @@ -180,9 +211,14 @@ TEST_F(FileSystemTest, TempFiles) { // Create another temp tile. int FD2; SmallString<64> TempPath2; - ASSERT_NO_ERROR(fs::unique_file("%%-%%-%%-%%.temp", FD2, TempPath2)); + ASSERT_NO_ERROR(fs::createTemporaryFile("prefix", "temp", FD2, TempPath2)); ASSERT_NE(TempPath.str(), TempPath2.str()); + fs::file_status A, B; + ASSERT_NO_ERROR(fs::status(Twine(TempPath), A)); + ASSERT_NO_ERROR(fs::status(Twine(TempPath2), B)); + EXPECT_FALSE(fs::equivalent(A, B)); + // Try to copy the first to the second. EXPECT_EQ( fs::copy_file(Twine(TempPath), Twine(TempPath2)), errc::file_exists); @@ -204,6 +240,9 @@ TEST_F(FileSystemTest, TempFiles) { bool equal; ASSERT_NO_ERROR(fs::equivalent(Twine(TempPath), Twine(TempPath2), equal)); EXPECT_TRUE(equal); + ASSERT_NO_ERROR(fs::status(Twine(TempPath), A)); + ASSERT_NO_ERROR(fs::status(Twine(TempPath2), B)); + EXPECT_TRUE(fs::equivalent(A, B)); // Remove Temp1. ::close(FileDescriptor); @@ -217,20 +256,93 @@ TEST_F(FileSystemTest, TempFiles) { // Make sure Temp1 doesn't exist. ASSERT_NO_ERROR(fs::exists(Twine(TempPath), TempFileExists)); EXPECT_FALSE(TempFileExists); + +#ifdef LLVM_ON_WIN32 + // Path name > 260 chars should get an error. + const char *Path270 = + "abcdefghijklmnopqrstuvwxyz9abcdefghijklmnopqrstuvwxyz8" + "abcdefghijklmnopqrstuvwxyz7abcdefghijklmnopqrstuvwxyz6" + "abcdefghijklmnopqrstuvwxyz5abcdefghijklmnopqrstuvwxyz4" + "abcdefghijklmnopqrstuvwxyz3abcdefghijklmnopqrstuvwxyz2" + "abcdefghijklmnopqrstuvwxyz1abcdefghijklmnopqrstuvwxyz0"; + EXPECT_EQ(fs::createUniqueFile(Twine(Path270), FileDescriptor, TempPath), + windows_error::path_not_found); +#endif } TEST_F(FileSystemTest, DirectoryIteration) { error_code ec; for (fs::directory_iterator i(".", ec), e; i != e; i.increment(ec)) ASSERT_NO_ERROR(ec); + + // Create a known hierarchy to recurse over. + bool existed; + ASSERT_NO_ERROR(fs::create_directories(Twine(TestDirectory) + + "/recursive/a0/aa1", existed)); + ASSERT_NO_ERROR(fs::create_directories(Twine(TestDirectory) + + "/recursive/a0/ab1", existed)); + ASSERT_NO_ERROR(fs::create_directories(Twine(TestDirectory) + + "/recursive/dontlookhere/da1", existed)); + ASSERT_NO_ERROR(fs::create_directories(Twine(TestDirectory) + + "/recursive/z0/za1", existed)); + ASSERT_NO_ERROR(fs::create_directories(Twine(TestDirectory) + + "/recursive/pop/p1", existed)); + typedef std::vector v_t; + v_t visited; + for (fs::recursive_directory_iterator i(Twine(TestDirectory) + + "/recursive", ec), e; i != e; i.increment(ec)){ + ASSERT_NO_ERROR(ec); + if (path::filename(i->path()) == "p1") { + i.pop(); + // FIXME: recursive_directory_iterator should be more robust. + if (i == e) break; + } + if (path::filename(i->path()) == "dontlookhere") + i.no_push(); + visited.push_back(path::filename(i->path())); + } + v_t::const_iterator a0 = std::find(visited.begin(), visited.end(), "a0"); + v_t::const_iterator aa1 = std::find(visited.begin(), visited.end(), "aa1"); + v_t::const_iterator ab1 = std::find(visited.begin(), visited.end(), "ab1"); + v_t::const_iterator dontlookhere = std::find(visited.begin(), visited.end(), + "dontlookhere"); + v_t::const_iterator da1 = std::find(visited.begin(), visited.end(), "da1"); + v_t::const_iterator z0 = std::find(visited.begin(), visited.end(), "z0"); + v_t::const_iterator za1 = std::find(visited.begin(), visited.end(), "za1"); + v_t::const_iterator pop = std::find(visited.begin(), visited.end(), "pop"); + v_t::const_iterator p1 = std::find(visited.begin(), visited.end(), "p1"); + + // Make sure that each path was visited correctly. + ASSERT_NE(a0, visited.end()); + ASSERT_NE(aa1, visited.end()); + ASSERT_NE(ab1, visited.end()); + ASSERT_NE(dontlookhere, visited.end()); + ASSERT_EQ(da1, visited.end()); // Not visited. + ASSERT_NE(z0, visited.end()); + ASSERT_NE(za1, visited.end()); + ASSERT_NE(pop, visited.end()); + ASSERT_EQ(p1, visited.end()); // Not visited. + + // Make sure that parents were visited before children. No other ordering + // guarantees can be made across siblings. + ASSERT_LT(a0, aa1); + ASSERT_LT(a0, ab1); + ASSERT_LT(z0, za1); } +const char elf[] = {0x7f, 'E', 'L', 'F', 1, 2, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1}; + TEST_F(FileSystemTest, Magic) { struct type { const char *filename; const char *magic_str; - size_t magic_str_len; - } types [] = {{"magic.archive", "!\x0A", 8}}; + size_t magic_str_len; + fs::file_magic magic; + } types [] = { + {"magic.archive", "!\x0A", 8, fs::file_magic::archive}, + {"magic.elf", elf, sizeof(elf), + fs::file_magic::elf_relocatable} + }; // Create some files filled with magic. for (type *i = types, *e = types + (sizeof(types) / sizeof(type)); i != e; @@ -247,7 +359,56 @@ TEST_F(FileSystemTest, Magic) { bool res = false; ASSERT_NO_ERROR(fs::has_magic(file_pathname.c_str(), magic, res)); EXPECT_TRUE(res); + EXPECT_EQ(i->magic, fs::identify_magic(magic)); } } +TEST_F(FileSystemTest, FileMapping) { + // Create a temp file. + int FileDescriptor; + SmallString<64> TempPath; + ASSERT_NO_ERROR( + fs::createTemporaryFile("prefix", "temp", FileDescriptor, TempPath)); + // Map in temp file and add some content + error_code EC; + StringRef Val("hello there"); + { + fs::mapped_file_region mfr(FileDescriptor, + true, + fs::mapped_file_region::readwrite, + 4096, + 0, + EC); + ASSERT_NO_ERROR(EC); + std::copy(Val.begin(), Val.end(), mfr.data()); + // Explicitly add a 0. + mfr.data()[Val.size()] = 0; + // Unmap temp file + } + + // Map it back in read-only + fs::mapped_file_region mfr(Twine(TempPath), + fs::mapped_file_region::readonly, + 0, + 0, + EC); + ASSERT_NO_ERROR(EC); + + // Verify content + EXPECT_EQ(StringRef(mfr.const_data()), Val); + + // Unmap temp file + +#if LLVM_HAS_RVALUE_REFERENCES + fs::mapped_file_region m(Twine(TempPath), + fs::mapped_file_region::readonly, + 0, + 0, + EC); + ASSERT_NO_ERROR(EC); + const char *Data = m.const_data(); + fs::mapped_file_region mfrrv(llvm_move(m)); + EXPECT_EQ(mfrrv.const_data(), Data); +#endif +} } // anonymous namespace