1 2 /** 3 * Copyright (C) 2018-present MongoDB, Inc. 4 * 5 * This program is free software: you can redistribute it and/or modify 6 * it under the terms of the Server Side Public License, version 1, 7 * as published by MongoDB, Inc. 8 * 9 * This program is distributed in the hope that it will be useful, 10 * but WITHOUT ANY WARRANTY; without even the implied warranty of 11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 12 * Server Side Public License for more details. 13 * 14 * You should have received a copy of the Server Side Public License 15 * along with this program. If not, see 16 * <http://www.mongodb.com/licensing/server-side-public-license>. 17 * 18 * As a special exception, the copyright holders give permission to link the 19 * code of portions of this program with the OpenSSL library under certain 20 * conditions as described in each individual source file and distribute 21 * linked combinations including the program with the OpenSSL library. You 22 * must comply with the Server Side Public License in all respects for 23 * all of the code used other than as permitted herein. If you modify file(s) 24 * with this exception, you may extend this exception to your version of the 25 * file(s), but you are not obligated to do so. If you do not wish to do so, 26 * delete this exception statement from your version. If you delete this 27 * exception statement from all source files in the program, then also delete 28 * it in the license file. 29 */ 30 31 #pragma once 32 33 #include <memory> 34 #include <string> 35 36 #include "mongo/base/disallow_copying.h" 37 #include "mongo/stdx/memory.h" 38 #include "mongo/unittest/unittest.h" 39 40 /** 41 * Constructs a single death test named "TEST_NAME" within the test case "CASE_NAME". 42 * 43 * The test only succeeds if the process terminates abnormally, e.g. through an fassert 44 * failure or deadly signal. 45 * 46 * Death tests are incompatible with already-running threads. If you need multiple threads 47 * in your death test, start them in the test body, or use DEATH_TEST_F and start them 48 * in the setUp() method of the fixture. 49 */ 50 #define DEATH_TEST(CASE_NAME, TEST_NAME, MATCH_EXPR) \ 51 class _TEST_TYPE_NAME(CASE_NAME, TEST_NAME) : public ::mongo::unittest::Test { \ 52 private: \ 53 virtual void _doTest(); \ 54 \ 55 static const RegistrationAgent< \ 56 ::mongo::unittest::DeathTest<_TEST_TYPE_NAME(CASE_NAME, TEST_NAME)>> \ 57 _agent; \ 58 }; \ 59 const ::mongo::unittest::Test::RegistrationAgent< \ 60 ::mongo::unittest::DeathTest<_TEST_TYPE_NAME(CASE_NAME, TEST_NAME)>> \ 61 _TEST_TYPE_NAME(CASE_NAME, TEST_NAME)::_agent(#CASE_NAME, #TEST_NAME); \ 62 std::string getDeathTestPattern(_TEST_TYPE_NAME(CASE_NAME, TEST_NAME)*) { \ 63 return MATCH_EXPR; \ 64 } \ 65 void _TEST_TYPE_NAME(CASE_NAME, TEST_NAME)::_doTest() 66 67 /** 68 * Constructs a single test named TEST_NAME that has access to a common fixture 69 * named "FIXTURE_NAME". 70 * 71 * See description of DEATH_TEST for more details on death tests. 72 */ 73 #define DEATH_TEST_F(FIXTURE_NAME, TEST_NAME, MATCH_EXPR) \ 74 class _TEST_TYPE_NAME(FIXTURE_NAME, TEST_NAME) : public FIXTURE_NAME { \ 75 private: \ 76 virtual void _doTest(); \ 77 \ 78 static const RegistrationAgent< \ 79 ::mongo::unittest::DeathTest<_TEST_TYPE_NAME(FIXTURE_NAME, TEST_NAME)>> \ 80 _agent; \ 81 }; \ 82 const ::mongo::unittest::Test::RegistrationAgent< \ 83 ::mongo::unittest::DeathTest<_TEST_TYPE_NAME(FIXTURE_NAME, TEST_NAME)>> \ 84 _TEST_TYPE_NAME(FIXTURE_NAME, TEST_NAME)::_agent(#FIXTURE_NAME, #TEST_NAME); \ 85 std::string getDeathTestPattern(_TEST_TYPE_NAME(FIXTURE_NAME, TEST_NAME)*) { \ 86 return MATCH_EXPR; \ 87 } \ 88 void _TEST_TYPE_NAME(FIXTURE_NAME, TEST_NAME)::_doTest() 89 90 namespace mongo { 91 namespace unittest { 92 93 class DeathTestImpl : public Test { 94 MONGO_DISALLOW_COPYING(DeathTestImpl); 95 96 protected: 97 DeathTestImpl(std::unique_ptr<Test> test); 98 99 private: 100 void _doTest() override; 101 virtual std::string getPattern() = 0; 102 std::unique_ptr<Test> _test; 103 }; 104 105 template <typename T> 106 class DeathTest : public DeathTestImpl { 107 public: 108 static const std::string pattern; 109 110 template <typename... Args> DeathTest(Args &&...args)111 DeathTest(Args&&... args) : DeathTestImpl(stdx::make_unique<T>(std::forward<Args>(args)...)) {} 112 113 private: getPattern()114 std::string getPattern() override { 115 return getDeathTestPattern(static_cast<T*>(nullptr)); 116 } 117 }; 118 119 } // namespace unittest 120 } // namespace mongo 121