1 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception 2 // -*- mode: C++ -*- 3 // 4 // Copyright 2022 Google LLC 5 // 6 // Licensed under the Apache License v2.0 with LLVM Exceptions (the 7 // "License"); you may not use this file except in compliance with the 8 // License. You may obtain a copy of the License at 9 // 10 // https://llvm.org/LICENSE.txt 11 // 12 // Unless required by applicable law or agreed to in writing, software 13 // distributed under the License is distributed on an "AS IS" BASIS, 14 // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 15 // See the License for the specific language governing permissions and 16 // limitations under the License. 17 // 18 // Author: Matthias Maennich 19 20 #include "file_descriptor.h" 21 22 #include <fcntl.h> 23 #include <unistd.h> 24 25 #include <utility> 26 27 #include <catch2/catch.hpp> 28 29 namespace Test { 30 31 TEST_CASE("default construction") { 32 const stg::FileDescriptor fd; 33 CHECK_THROWS(fd.Value()); 34 } 35 36 TEST_CASE("successful open") { 37 const stg::FileDescriptor fd("/dev/null", O_RDONLY); 38 CHECK(fd.Value()); 39 } 40 41 TEST_CASE("failed open") { 42 CHECK_THROWS(stg::FileDescriptor("/dev/unicorn_null", O_RDONLY)); 43 } 44 45 TEST_CASE("double close") { __anon9e0281750102() 46 CHECK_THROWS([]() { 47 const stg::FileDescriptor fd("/dev/null", O_RDONLY); 48 close(fd.Value()); 49 CHECK_NOTHROW(fd.Value()); // value is still ok 50 }()); // throws on destruction 51 } 52 53 TEST_CASE("ownership transfer on move") { 54 stg::FileDescriptor fd("/dev/null", O_RDONLY); 55 CHECK_NOTHROW(fd.Value()); // value is still ok 56 57 const auto fd_val = fd.Value(); 58 59 auto fd2(std::move(fd)); 60 CHECK_THROWS(fd.Value()); 61 CHECK(fd_val == fd2.Value()); 62 63 const auto fd3(std::move(fd2)); 64 CHECK_THROWS(fd2.Value()); 65 CHECK(fd_val == fd3.Value()); 66 } 67 68 } // namespace Test 69