file_size.pass.cpp (2375B)
1 //===----------------------------------------------------------------------===// 2 // 3 // The LLVM Compiler Infrastructure 4 // 5 // This file is dual licensed under the MIT and the University of Illinois Open 6 // Source Licenses. See LICENSE.TXT for details. 7 // 8 //===----------------------------------------------------------------------===// 9 10 // UNSUPPORTED: c++98, c++03 11 12 // <filesystem> 13 14 // uintmax_t file_size(const path& p); 15 // uintmax_t file_size(const path& p, std::error_code& ec) noexcept; 16 17 #include "filesystem_include.hpp" 18 #include <type_traits> 19 #include <cassert> 20 21 #include "test_macros.h" 22 #include "rapid-cxx-test.hpp" 23 #include "filesystem_test_helper.hpp" 24 25 using namespace fs; 26 27 TEST_SUITE(file_size_test_suite) 28 29 TEST_CASE(signature_test) 30 { 31 const path p; ((void)p); 32 std::error_code ec; ((void)ec); 33 ASSERT_SAME_TYPE(decltype(file_size(p)), uintmax_t); 34 ASSERT_SAME_TYPE(decltype(file_size(p, ec)), uintmax_t); 35 ASSERT_NOT_NOEXCEPT(file_size(p)); 36 ASSERT_NOEXCEPT(file_size(p, ec)); 37 } 38 39 TEST_CASE(file_size_empty_test) 40 { 41 const path p = StaticEnv::EmptyFile; 42 TEST_CHECK(file_size(p) == 0); 43 std::error_code ec; 44 TEST_CHECK(file_size(p, ec) == 0); 45 } 46 47 TEST_CASE(file_size_non_empty) 48 { 49 scoped_test_env env; 50 const path p = env.create_file("file", 42); 51 TEST_CHECK(file_size(p) == 42); 52 std::error_code ec; 53 TEST_CHECK(file_size(p, ec) == 42); 54 } 55 56 TEST_CASE(symlink_test_case) 57 { 58 const path p = StaticEnv::File; 59 const path p2 = StaticEnv::SymlinkToFile; 60 TEST_CHECK(file_size(p) == file_size(p2)); 61 } 62 63 TEST_CASE(file_size_error_cases) 64 { 65 struct { 66 path p; 67 std::errc expected_err; 68 } TestCases[] = { 69 {StaticEnv::Dir, std::errc::is_a_directory}, 70 {StaticEnv::SymlinkToDir, std::errc::is_a_directory}, 71 {StaticEnv::BadSymlink, std::errc::no_such_file_or_directory}, 72 {StaticEnv::DNE, std::errc::no_such_file_or_directory}, 73 {"", std::errc::no_such_file_or_directory}}; 74 const uintmax_t expect = static_cast<uintmax_t>(-1); 75 for (auto& TC : TestCases) { 76 std::error_code ec = GetTestEC(); 77 TEST_CHECK(file_size(TC.p, ec) == expect); 78 TEST_CHECK(ErrorIs(ec, TC.expected_err)); 79 80 ExceptionChecker Checker(TC.p, TC.expected_err, "file_size"); 81 TEST_CHECK_THROW_RESULT(filesystem_error, Checker, file_size(TC.p)); 82 } 83 } 84 85 TEST_SUITE_END()