projects / ceph.git / blame
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|---|---|---|
| 7c673cae FG |
1 | // |
| 2 | // Copyright (c) 2013-2017 Vinnie Falco (vinnie dot falco at gmail dot com) | |
| 3 | // | |
| 4 | // Distributed under the Boost Software License, Version 1.0. (See accompanying | |
| 5 | // file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt) | |
| 6 | // | |
| 7 | ||
| 8 | // Test that header file is self-contained. | |
| 9 | #include <beast/core/detail/get_lowest_layer.hpp> | |
| 10 | ||
| 11 | #include <beast/unit_test/suite.hpp> | |
| 12 | #include <type_traits> | |
| 13 | ||
| 14 | namespace beast { | |
| 15 | namespace detail { | |
| 16 | ||
| 17 | class get_lowest_layer_test | |
| 18 | : public beast::unit_test::suite | |
| 19 | { | |
| 20 | public: | |
| 21 | struct F1 | |
| 22 | { | |
| 23 | }; | |
| 24 | ||
| 25 | struct F2 | |
| 26 | { | |
| 27 | }; | |
| 28 | ||
| 29 | template<class F> | |
| 30 | struct F3 | |
| 31 | { | |
| 32 | using next_layer_type = | |
| 33 | typename std::remove_reference<F>::type; | |
| 34 | ||
| 35 | using lowest_layer_type = typename | |
| 36 | get_lowest_layer<next_layer_type>::type; | |
| 37 | }; | |
| 38 | ||
| 39 | template<class F> | |
| 40 | struct F4 | |
| 41 | { | |
| 42 | using next_layer_type = | |
| 43 | typename std::remove_reference<F>::type; | |
| 44 | ||
| 45 | using lowest_layer_type = typename | |
| 46 | get_lowest_layer<next_layer_type>::type; | |
| 47 | }; | |
| 48 | ||
| 49 | void | |
| 50 | run() | |
| 51 | { | |
| 52 | static_assert(! has_lowest_layer<F1>::value, ""); | |
| 53 | static_assert(! has_lowest_layer<F2>::value, ""); | |
| 54 | static_assert(has_lowest_layer<F3<F1>>::value, ""); | |
| 55 | static_assert(has_lowest_layer<F4<F3<F2>>>::value, ""); | |
| 56 | ||
| 57 | static_assert(std::is_same< | |
| 58 | get_lowest_layer<F1>::type, F1>::value, ""); | |
| 59 | ||
| 60 | static_assert(std::is_same< | |
| 61 | get_lowest_layer<F2>::type, F2>::value, ""); | |
| 62 | ||
| 63 | static_assert(std::is_same< | |
| 64 | get_lowest_layer<F3<F1>>::type, F1>::value, ""); | |
| 65 | ||
| 66 | static_assert(std::is_same< | |
| 67 | get_lowest_layer<F3<F2>>::type, F2>::value, ""); | |
| 68 | ||
| 69 | static_assert(std::is_same< | |
| 70 | get_lowest_layer<F4<F1>>::type, F1>::value, ""); | |
| 71 | ||
| 72 | static_assert(std::is_same< | |
| 73 | get_lowest_layer<F4<F2>>::type, F2>::value, ""); | |
| 74 | ||
| 75 | static_assert(std::is_same< | |
| 76 | get_lowest_layer<F4<F3<F1>>>::type, F1>::value, ""); | |
| 77 | ||
| 78 | static_assert(std::is_same< | |
| 79 | get_lowest_layer<F4<F3<F2>>>::type, F2>::value, ""); | |
| 80 | ||
| 81 | pass(); | |
| 82 | } | |
| 83 | }; | |
| 84 | ||
| 85 | BEAST_DEFINE_TESTSUITE(get_lowest_layer,core,beast); | |
| 86 | ||
| 87 | } // detail | |
| 88 | } // beast |