ceph/src/boost/boost/test/tree/test_case_template.hpp

   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 //
   8 ///@ file
   9 /// Defines template_test_case_gen
  10 // ***************************************************************************
  11
  12 #ifndef BOOST_TEST_TREE_TEST_CASE_TEMPLATE_HPP_091911GER
  13 #define BOOST_TEST_TREE_TEST_CASE_TEMPLATE_HPP_091911GER
  14
  15 // Boost.Test
  16 #include <boost/test/detail/config.hpp>
  17 #include <boost/test/detail/global_typedef.hpp>
  18 #include <boost/test/detail/fwd_decl.hpp>
  19 #include <boost/test/detail/workaround.hpp>
  20
  21 #include <boost/test/utils/class_properties.hpp>
  22
  23 #include <boost/test/tree/observer.hpp>
  24
  25
  26 // Boost
  27 #include <boost/shared_ptr.hpp>
  28 #include <boost/mpl/for_each.hpp>
  29 #include <boost/mpl/identity.hpp>
  30 #include <boost/type.hpp>
  31 #include <boost/type_traits/is_const.hpp>
  32 #include <boost/function/function0.hpp>
  33
  34 #if defined(BOOST_NO_TYPEID) || defined(BOOST_NO_RTTI)
  35 #  include <boost/current_function.hpp>
  36 #else
  37 #  include <boost/core/demangle.hpp>
  38 #endif
  39
  40 // STL
  41 #include <string>   // for std::string
  42 #include <list>     // for std::list
  43
  44 #if !defined(BOOST_NO_CXX11_VARIADIC_TEMPLATES) && \
  45     !defined(BOOST_NO_CXX11_HDR_TUPLE) && \
  46     !defined(BOOST_NO_CXX11_AUTO_DECLARATIONS)
  47   #include <tuple>
  48 #endif
  49
  50 #include <boost/test/detail/suppress_warnings.hpp>
  51
  52
  53 //____________________________________________________________________________//
  54
  55 namespace boost {
  56 namespace unit_test {
  57 namespace ut_detail {
  58
  59 // ************************************************************************** //
  60 // **************          test_case_template_invoker          ************** //
  61 // ************************************************************************** //
  62
  63 template<typename TestCaseTemplate,typename TestType>
  64 class test_case_template_invoker {
  65 public:
  66     void    operator()()    { TestCaseTemplate::run( (boost::type<TestType>*)0 ); }
  67 };
  68
  69 // ************************************************************************** //
  70 // **************           generate_test_case_4_type          ************** //
  71 // ************************************************************************** //
  72
  73 template<typename Generator, typename TestCaseTemplate>
  74 struct generate_test_case_4_type {
  75     explicit    generate_test_case_4_type( const_string tc_name, const_string tc_file, std::size_t tc_line, Generator& G )
  76     : m_test_case_name( tc_name )
  77     , m_test_case_file( tc_file )
  78     , m_test_case_line( tc_line )
  79     , m_holder( G )
  80     {}
  81
  82     template<typename TestType>
  83     void        operator()( mpl::identity<TestType> )
  84     {
  85         std::string full_name;
  86         assign_op( full_name, m_test_case_name, 0 );
  87         full_name += '<';
  88 #if !defined(BOOST_NO_TYPEID) && !defined(BOOST_NO_RTTI)
  89         full_name += boost::core::demangle(typeid(TestType).name()); // same as execution_monitor.ipp
  90 #else
  91         full_name += BOOST_CURRENT_FUNCTION;
  92 #endif
  93         if( boost::is_const<TestType>::value )
  94             full_name += "_const";
  95         full_name += '>';
  96
  97         m_holder.m_test_cases.push_back( new test_case( ut_detail::normalize_test_case_name( full_name ),
  98                                                         m_test_case_file,
  99                                                         m_test_case_line,
 100                                                         test_case_template_invoker<TestCaseTemplate,TestType>() ) );
 101     }
 102
 103 private:
 104     // Data members
 105     const_string    m_test_case_name;
 106     const_string    m_test_case_file;
 107     std::size_t     m_test_case_line;
 108     Generator&      m_holder;
 109 };
 110
 111 // ************************************************************************** //
 112 // **************              test_case_template              ************** //
 113 // ************************************************************************** //
 114
 115 class template_test_case_gen_base : public test_unit_generator {
 116 public:
 117     virtual test_unit* next() const
 118     {
 119         if( m_test_cases.empty() )
 120             return 0;
 121
 122         test_unit* res = m_test_cases.front();
 123         m_test_cases.pop_front();
 124
 125         return res;
 126     }
 127
 128     // Data members
 129     mutable std::list<test_unit*> m_test_cases;
 130 };
 131
 132 template<typename TestCaseTemplate,typename TestTypesList>
 133 class template_test_case_gen : public template_test_case_gen_base {
 134 public:
 135     // Constructor
 136     template_test_case_gen( const_string tc_name, const_string tc_file, std::size_t tc_line )
 137     {
 138         typedef generate_test_case_4_type<template_test_case_gen<TestCaseTemplate,TestTypesList>,TestCaseTemplate> single_test_gen;
 139
 140         mpl::for_each<TestTypesList,mpl::make_identity<mpl::_> >( single_test_gen( tc_name, tc_file, tc_line, *this ) );
 141     }
 142 };
 143
 144 // adding support for tuple
 145 #if !defined(BOOST_NO_CXX11_VARIADIC_TEMPLATES) && \
 146     !defined(BOOST_NO_CXX11_HDR_TUPLE) && \
 147     !defined(BOOST_NO_CXX11_AUTO_DECLARATIONS)
 148
 149 template<typename TestCaseTemplate, typename... tuple_parameter_pack>
 150 class template_test_case_gen<TestCaseTemplate, std::tuple<tuple_parameter_pack...> > : public template_test_case_gen_base {
 151
 152     template<int... Is>
 153     struct seq { };
 154
 155     template<int N, int... Is>
 156     struct gen_seq : gen_seq<N - 1, N - 1, Is...> { };
 157
 158     template<int... Is>
 159     struct gen_seq<0, Is...> : seq<Is...> { };
 160
 161     template<typename tuple_t, typename F, int... Is>
 162     void for_each(F &f, seq<Is...>)
 163     {
 164         auto l = { (f(mpl::identity<typename std::tuple_element<Is, tuple_t>::type>()), 0)... };
 165         (void)l; // silence warning
 166     }
 167
 168 public:
 169     // Constructor
 170     template_test_case_gen( const_string tc_name, const_string tc_file, std::size_t tc_line )
 171     {
 172         using tuple_t = std::tuple<tuple_parameter_pack...>;
 173         using this_type = template_test_case_gen<TestCaseTemplate, tuple_t >;
 174         using single_test_gen = generate_test_case_4_type<this_type, TestCaseTemplate>;
 175
 176         single_test_gen op( tc_name, tc_file, tc_line, *this );
 177
 178         this->for_each<tuple_t>(op, gen_seq<sizeof...(tuple_parameter_pack)>());
 179     }
 180 };
 181
 182 #endif /* C++11 variadic and tuples */
 183
 184 } // namespace ut_detail
 185 } // unit_test
 186 } // namespace boost
 187
 188 #include <boost/test/detail/enable_warnings.hpp>
 189
 190 #endif // BOOST_TEST_TREE_TEST_CASE_TEMPLATE_HPP_091911GER