]>
Commit | Line | Data |
---|---|---|
7c673cae FG |
1 | // (C) Copyright Gennadiy Rozental 2001. |
2 | // Distributed under the Boost Software License, Version 1.0. | |
3 | // (See accompanying file LICENSE_1_0.txt or copy at | |
4 | // http://www.boost.org/LICENSE_1_0.txt) | |
5 | ||
6 | // See http://www.boost.org/libs/test for the library home page. | |
7 | // | |
b32b8144 FG |
8 | /// @file |
9 | /// Defines fixture interface and object makers | |
7c673cae FG |
10 | // *************************************************************************** |
11 | ||
12 | #ifndef BOOST_TEST_TREE_FIXTURE_HPP_100311GER | |
13 | #define BOOST_TEST_TREE_FIXTURE_HPP_100311GER | |
14 | ||
15 | // Boost.Test | |
16 | #include <boost/test/detail/config.hpp> | |
17 | ||
18 | // Boost | |
19 | #include <boost/shared_ptr.hpp> | |
20 | #include <boost/scoped_ptr.hpp> | |
21 | #include <boost/function/function0.hpp> | |
b32b8144 | 22 | #include <boost/utility/declval.hpp> |
7c673cae FG |
23 | |
24 | #include <boost/test/detail/suppress_warnings.hpp> | |
25 | ||
26 | //____________________________________________________________________________// | |
27 | ||
28 | namespace boost { | |
29 | namespace unit_test { | |
30 | ||
31 | // ************************************************************************** // | |
32 | // ************** test_unit_fixture ************** // | |
33 | // ************************************************************************** // | |
34 | ||
35 | class BOOST_TEST_DECL test_unit_fixture { | |
36 | public: | |
37 | virtual ~test_unit_fixture() {} | |
38 | ||
39 | // Fixture interface | |
40 | virtual void setup() = 0; | |
41 | virtual void teardown() = 0; | |
42 | }; | |
43 | ||
44 | typedef shared_ptr<test_unit_fixture> test_unit_fixture_ptr; | |
45 | ||
b32b8144 FG |
46 | // ************************************************************************** // |
47 | // ************** fixture helper functions ************** // | |
48 | // ************************************************************************** // | |
49 | ||
50 | namespace impl_fixture { | |
51 | ||
52 | #if defined(BOOST_NO_CXX11_DECLTYPE) || defined(BOOST_NO_CXX11_TRAILING_RESULT_TYPES) | |
53 | ||
54 | template<typename U, void (U::*)()> struct fixture_detect {}; | |
55 | ||
56 | template<typename T> | |
57 | struct has_setup { | |
58 | private: | |
59 | template<typename U> static char Test(fixture_detect<U, &U::setup>*); | |
60 | template<typename U> static int Test(...); | |
61 | public: | |
62 | static const bool value = sizeof(Test<T>(0)) == sizeof(char); | |
63 | }; | |
64 | ||
65 | template<typename T> | |
66 | struct has_teardown { | |
67 | private: | |
68 | template<typename U> static char Test(fixture_detect<U, &U::teardown>*); | |
69 | template<typename U> static int Test(...); | |
70 | public: | |
71 | static const bool value = sizeof(Test<T>(0)) == sizeof(char); | |
72 | }; | |
73 | ||
74 | #else | |
75 | ||
76 | template<typename U> struct fixture_detect { typedef char type; }; | |
77 | template<typename T> | |
78 | struct has_setup { | |
79 | private: | |
80 | template<typename U> static auto Test(U*) -> typename fixture_detect<decltype(boost::declval<U>().setup())>::type; | |
81 | template<typename U> static int Test(...); | |
82 | public: | |
83 | static const bool value = sizeof(Test<T>(0)) == sizeof(char); | |
84 | }; | |
85 | ||
86 | template<typename T> | |
87 | struct has_teardown { | |
88 | private: | |
89 | template<typename U> static auto Test(U*) -> typename fixture_detect<decltype(boost::declval<U>().teardown())>::type; | |
90 | template<typename U> static int Test(...); | |
91 | public: | |
92 | static const bool value = sizeof(Test<T>(0)) == sizeof(char); | |
93 | }; | |
94 | ||
95 | #endif | |
96 | ||
97 | template <bool has_setup = false> | |
98 | struct call_setup { template <class U> void operator()(U& ) { } }; | |
99 | ||
100 | template <> | |
101 | struct call_setup<true> { template <class U> void operator()(U& u) { u.setup(); } }; | |
102 | ||
103 | template <bool has_teardown = false> | |
104 | struct call_teardown { template <class U> void operator()(U& ) { } }; | |
105 | ||
106 | template <> | |
107 | struct call_teardown<true> { template <class U> void operator()(U& u) { u.teardown(); } }; | |
108 | } | |
109 | ||
110 | //! Calls the fixture "setup" if detected by the compiler, otherwise does nothing. | |
111 | template <class U> | |
112 | void setup_conditional(U& u) { | |
113 | return impl_fixture::call_setup<impl_fixture::has_setup<U>::value>()(u); | |
114 | } | |
115 | ||
116 | //! Calls the fixture "teardown" if detected by the compiler, otherwise does nothing. | |
117 | template <class U> | |
118 | void teardown_conditional(U& u) { | |
119 | return impl_fixture::call_teardown<impl_fixture::has_teardown<U>::value>()(u); | |
120 | } | |
121 | ||
122 | ||
7c673cae FG |
123 | // ************************************************************************** // |
124 | // ************** class_based_fixture ************** // | |
125 | // ************************************************************************** // | |
126 | ||
127 | template<typename F, typename Arg=void> | |
128 | class class_based_fixture : public test_unit_fixture { | |
129 | public: | |
130 | // Constructor | |
131 | explicit class_based_fixture( Arg const& arg ) : m_inst(), m_arg( arg ) {} | |
132 | ||
133 | private: | |
134 | // Fixture interface | |
20effc67 TL |
135 | void setup() BOOST_OVERRIDE { m_inst.reset( new F( m_arg ) ); setup_conditional(*m_inst); } |
136 | void teardown() BOOST_OVERRIDE { teardown_conditional(*m_inst); m_inst.reset(); } | |
7c673cae FG |
137 | |
138 | // Data members | |
139 | scoped_ptr<F> m_inst; | |
140 | Arg m_arg; | |
141 | }; | |
142 | ||
143 | //____________________________________________________________________________// | |
144 | ||
145 | template<typename F> | |
146 | class class_based_fixture<F,void> : public test_unit_fixture { | |
147 | public: | |
148 | // Constructor | |
149 | class_based_fixture() : m_inst( 0 ) {} | |
150 | ||
151 | private: | |
152 | // Fixture interface | |
20effc67 TL |
153 | void setup() BOOST_OVERRIDE { m_inst.reset( new F ); setup_conditional(*m_inst); } |
154 | void teardown() BOOST_OVERRIDE { teardown_conditional(*m_inst); m_inst.reset(); } | |
7c673cae FG |
155 | |
156 | // Data members | |
157 | scoped_ptr<F> m_inst; | |
158 | }; | |
159 | ||
160 | //____________________________________________________________________________// | |
161 | ||
162 | // ************************************************************************** // | |
163 | // ************** function_based_fixture ************** // | |
164 | // ************************************************************************** // | |
165 | ||
166 | class function_based_fixture : public test_unit_fixture { | |
167 | public: | |
168 | // Constructor | |
169 | function_based_fixture( boost::function<void ()> const& setup_, boost::function<void ()> const& teardown_ ) | |
170 | : m_setup( setup_ ) | |
171 | , m_teardown( teardown_ ) | |
172 | { | |
173 | } | |
174 | ||
175 | private: | |
176 | // Fixture interface | |
20effc67 TL |
177 | void setup() BOOST_OVERRIDE { if( m_setup ) m_setup(); } |
178 | void teardown() BOOST_OVERRIDE { if( m_teardown ) m_teardown(); } | |
7c673cae FG |
179 | |
180 | // Data members | |
181 | boost::function<void ()> m_setup; | |
182 | boost::function<void ()> m_teardown; | |
183 | }; | |
184 | ||
185 | } // namespace unit_test | |
186 | } // namespace boost | |
187 | ||
188 | #include <boost/test/detail/enable_warnings.hpp> | |
189 | ||
190 | #endif // BOOST_TEST_TREE_FIXTURE_HPP_100311GER | |
191 |