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Template tests: added TEMPLATE_PRODUCT_TEST_CASE

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support for generating test cases based on multiple template template
types combined with template arguments for each of the template template
types specified

e.g.
```
TEMPLATE_PRODUCT_TEST_CASE("template product","[template]",
			   (std::tuple, std::pair, std::map),
			   ((int,float),(char,double),(int,char)))
```
will effectively create 9 test cases with types:
std::tuple<int,float>
std::tuple<char,double>
std::tuple<int,char>
std::pair<int,float>
std::pair<char, double>
std::pair<int,char>
std::map<int,float>
std::map<char,double>
std::map<int,char>

Tested type is accessible in test case body as TestType
Unique name is created by appending ` - <index>` to test name
since preprocessor has some limitations in recursions

Closes #1454
This commit is contained in:
Jozef Grajciar
2018-12-06 19:27:33 +01:00
parent 4902cd7215
commit 21a1cd5683
12 changed files with 630 additions and 8 deletions
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76
include/internal/catch_meta.hpp Normal file
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@@ -0,0 +1,76 @@
/*
* Created by Jozef on 02/12/2018.
* Copyright 2018 Two Blue Cubes Ltd. All rights reserved.
*
* Distributed under the Boost Software License, Version 1.0. (See accompanying
* file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
*/
#ifndef TWOBLUECUBES_CATCH_META_HPP_INCLUDED
#define TWOBLUECUBES_CATCH_META_HPP_INCLUDED
template< typename... >
struct TypeList{};
template< typename... >
struct append;
template< template<typename...> class L1
, typename...E1
, template<typename...> class L2
, typename...E2
>
struct append< L1<E1...>, L2<E2...> >
{
using type = L1<E1..., E2...>;
};
template< template<typename...> class L1
, typename...E1
, template<typename...> class L2
, typename...E2
, typename...Rest
>
struct append< L1<E1...>, L2<E2...>, Rest...>
{
using type = typename append< L1<E1..., E2...>, Rest... >::type;
};
template< template<typename...> class
, typename...
>
struct rewrap;
template< template<typename...> class Container
, template<typename...> class List
, typename...elems
>
struct rewrap<Container, List<elems...>>
{
using type = TypeList< Container< elems... > >;
};
template< template<typename...> class Container
, template<typename...> class List
, class...Elems
, typename...Elements>
struct rewrap<Container, List<Elems...>, Elements...>
{
using type = typename append<TypeList<Container<Elems...>>, typename rewrap<Container, Elements...>::type>::type;
};
template< template<typename...> class...Containers >
struct combine
{
template< typename...Types >
struct with_types
{
template< template <typename...> class Final >
struct into
{
using type = typename append<Final<>, typename rewrap<Containers, Types...>::type...>::type;
};
};
};
#endif // TWOBLUECUBES_CATCH_META_HPP_INCLUDED