X-Git-Url: http://demsky.eecs.uci.edu/git/?a=blobdiff_plain;f=unittests%2FSupport%2FPath.cpp;h=9a68e08f9c9cb003dfb240fc5e8110a99192ad11;hb=7172b38af7ed5d1c1e2c97fadfb0ae0c19aff816;hp=70cf213f1917a69de59a9fcc85dc60874bb14dec;hpb=34ab1f6087bc0da1df0e3a73ac99762ef070d419;p=oota-llvm.git diff --git a/unittests/Support/Path.cpp b/unittests/Support/Path.cpp index 70cf213f191..9a68e08f9c9 100644 --- a/unittests/Support/Path.cpp +++ b/unittests/Support/Path.cpp @@ -7,14 +7,40 @@ // //===----------------------------------------------------------------------===// -#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; +using namespace llvm::sys; + +#define ASSERT_NO_ERROR(x) \ + if (error_code ASSERT_NO_ERROR_ec = x) { \ + SmallString<128> MessageStorage; \ + raw_svector_ostream Message(MessageStorage); \ + Message << #x ": did not return errc::success.\n" \ + << "error number: " << ASSERT_NO_ERROR_ec.value() << "\n" \ + << "error message: " << ASSERT_NO_ERROR_ec.message() << "\n"; \ + GTEST_FATAL_FAILURE_(MessageStorage.c_str()); \ + } else {} namespace { +TEST(is_separator, Works) { + EXPECT_TRUE(path::is_separator('/')); + EXPECT_FALSE(path::is_separator('\0')); + EXPECT_FALSE(path::is_separator('-')); + EXPECT_FALSE(path::is_separator(' ')); + +#ifdef LLVM_ON_WIN32 + EXPECT_TRUE(path::is_separator('\\')); +#else + EXPECT_FALSE(path::is_separator('\\')); +#endif +} + TEST(Support, Path) { SmallVector paths; paths.push_back(""); @@ -62,15 +88,14 @@ TEST(Support, Path) { e = paths.end(); i != e; ++i) { - outs() << *i << " =>\n Iteration: ["; for (sys::path::const_iterator ci = sys::path::begin(*i), ce = sys::path::end(*i); ci != ce; ++ci) { - outs() << *ci << ','; + ASSERT_FALSE(ci->empty()); } - outs() << "]\n"; +#if 0 // Valgrind is whining about this. outs() << " Reverse Iteration: ["; for (sys::path::reverse_iterator ci = sys::path::rbegin(*i), ce = sys::path::rend(*i); @@ -79,50 +104,311 @@ TEST(Support, Path) { outs() << *ci << ','; } outs() << "]\n"; +#endif - StringRef res; - SmallString<16> temp_store; - if (error_code ec = sys::path::root_path(*i, res)) - ASSERT_FALSE(ec.message().c_str()); - outs() << " root_path: " << res << '\n'; - if (error_code ec = sys::path::root_name(*i, res)) - ASSERT_FALSE(ec.message().c_str()); - outs() << " root_name: " << res << '\n'; - if (error_code ec = sys::path::root_directory(*i, res)) - ASSERT_FALSE(ec.message().c_str()); - outs() << " root_directory: " << res << '\n'; - if (error_code ec = sys::path::parent_path(*i, res)) - ASSERT_FALSE(ec.message().c_str()); - outs() << " parent_path: " << res << '\n'; - if (error_code ec = sys::path::filename(*i, res)) - ASSERT_FALSE(ec.message().c_str()); - outs() << " filename: " << res << '\n'; - if (error_code ec = sys::path::stem(*i, res)) - ASSERT_FALSE(ec.message().c_str()); - outs() << " stem: " << res << '\n'; + path::has_root_path(*i); + path::root_path(*i); + path::has_root_name(*i); + path::root_name(*i); + path::has_root_directory(*i); + path::root_directory(*i); + path::has_parent_path(*i); + path::parent_path(*i); + path::has_filename(*i); + path::filename(*i); + path::has_stem(*i); + path::stem(*i); + path::has_extension(*i); + path::extension(*i); + path::is_absolute(*i); + path::is_relative(*i); + SmallString<128> temp_store; temp_store = *i; - if (error_code ec = sys::path::make_absolute(temp_store)) - ASSERT_FALSE(ec.message().c_str()); - outs() << " make_absolute: " << temp_store << '\n'; + ASSERT_NO_ERROR(fs::make_absolute(temp_store)); temp_store = *i; - if (error_code ec = sys::path::remove_filename(temp_store)) - ASSERT_FALSE(ec.message().c_str()); - outs() << " remove_filename: " << temp_store << '\n'; + path::remove_filename(temp_store); + temp_store = *i; - if (error_code ec = sys::path::replace_extension(temp_store, "ext")) - ASSERT_FALSE(ec.message().c_str()); - outs() << " replace_extension: " << temp_store << '\n'; - if (error_code ec = sys::path::stem( - StringRef(temp_store.begin(), temp_store.size()), res)) - ASSERT_FALSE(ec.message().c_str()); - outs() << " stem: " << res << '\n'; - if (error_code ec = sys::path::native(*i, temp_store)) - ASSERT_FALSE(ec.message().c_str()); - outs() << " native: " << temp_store << '\n'; - - outs().flush(); + path::replace_extension(temp_store, "ext"); + StringRef filename(temp_store.begin(), temp_store.size()), stem, ext; + stem = path::stem(filename); + ext = path::extension(filename); + EXPECT_EQ(*(--sys::path::end(filename)), (stem + ext).str()); + + path::native(*i, temp_store); + } +} + +class FileSystemTest : public testing::Test { +protected: + /// Unique temporary directory in which all created filesystem entities must + /// be placed. It is recursively removed at the end of each test. + SmallString<128> TestDirectory; + + virtual void SetUp() { + ASSERT_NO_ERROR( + fs::createUniqueDirectory("file-system-test", TestDirectory)); + // We don't care about this specific file. + errs() << "Test Directory: " << TestDirectory << '\n'; + errs().flush(); + } + + virtual void TearDown() { + uint32_t removed; + ASSERT_NO_ERROR(fs::remove_all(TestDirectory.str(), removed)); + } +}; + +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::createTemporaryFile("prefix", "temp", FileDescriptor, TempPath)); + + // Make sure it exists. + bool TempFileExists; + ASSERT_NO_ERROR(sys::fs::exists(Twine(TempPath), TempFileExists)); + EXPECT_TRUE(TempFileExists); + + // Create another temp tile. + int FD2; + SmallString<64> 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); + + ::close(FD2); + // Try again with the proper options. + ASSERT_NO_ERROR(fs::copy_file(Twine(TempPath), Twine(TempPath2), + fs::copy_option::overwrite_if_exists)); + // Remove Temp2. + ASSERT_NO_ERROR(fs::remove(Twine(TempPath2), TempFileExists)); + EXPECT_TRUE(TempFileExists); + + // Make sure Temp2 doesn't exist. + ASSERT_NO_ERROR(fs::exists(Twine(TempPath2), TempFileExists)); + EXPECT_FALSE(TempFileExists); + + // Create a hard link to Temp1. + ASSERT_NO_ERROR(fs::create_hard_link(Twine(TempPath), Twine(TempPath2))); + 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); + ASSERT_NO_ERROR(fs::remove(Twine(TempPath), TempFileExists)); + EXPECT_TRUE(TempFileExists); + + // Remove the hard link. + ASSERT_NO_ERROR(fs::remove(Twine(TempPath2), TempFileExists)); + EXPECT_TRUE(TempFileExists); + + // 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; + 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; + ++i) { + SmallString<128> file_pathname(TestDirectory); + path::append(file_pathname, i->filename); + std::string ErrMsg; + raw_fd_ostream file(file_pathname.c_str(), ErrMsg, + raw_fd_ostream::F_Binary); + ASSERT_FALSE(file.has_error()); + StringRef magic(i->magic_str, i->magic_str_len); + file << magic; + file.close(); + 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