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Files
hof/test/construct.cpp
2015-08-28 16:29:19 -05:00

86 lines
2.3 KiB
C++

#include <fit/construct.h>
#include "test.h"
#include <fit/conditional.h>
#include <fit/by.h>
#include <fit/placeholders.h>
#include <tuple>
#include <type_traits>
#include <vector>
template<class T>
struct ac
{
T value;
constexpr ac(T i) : value(i)
{}
};
FIT_TEST_CASE()
{
auto v = fit::construct<std::vector<int>>()(5, 5);
FIT_TEST_CHECK(v.size() == 5);
FIT_TEST_CHECK(v == std::vector<int>{5, 5, 5, 5, 5});
}
FIT_TEST_CASE()
{
auto make = fit::construct<std::vector<int>>().by(fit::_1 * fit::_1);
auto v = make(3, 3);
FIT_TEST_CHECK(v.size() == 9);
FIT_TEST_CHECK(v == std::vector<int>{9, 9, 9, 9, 9, 9, 9, 9, 9});
}
FIT_TEST_CASE()
{
auto v = fit::construct<std::vector<int>>()({5, 5, 5, 5, 5});
FIT_TEST_CHECK(v.size() == 5);
FIT_TEST_CHECK(v == std::vector<int>{5, 5, 5, 5, 5});
}
FIT_TEST_CASE()
{
auto t = fit::construct<std::tuple>()(1, 2, 3);
static_assert(std::is_same<std::tuple<int, int, int>, decltype(t)>::value, "");
FIT_TEST_CHECK(t == std::make_tuple(1, 2, 3));
// GCC 4.7 doesn't have fully constexpr tuple
#if defined(__GNUC__) && !defined (__clang__) && __GNUC__ == 4 && __GNUC_MINOR__ > 7
FIT_STATIC_TEST_CHECK(std::make_tuple(1, 2, 3) == fit::construct<std::tuple>()(1, 2, 3));
#endif
}
FIT_TEST_CASE()
{
auto t = fit::construct<std::pair>()(1, 2);
static_assert(std::is_same<std::pair<int, int>, decltype(t)>::value, "");
FIT_TEST_CHECK(t == std::make_pair(1, 2));
// GCC 4.7 doesn't have fully constexpr pair
#if defined(__GNUC__) && !defined (__clang__) && __GNUC__ == 4 && __GNUC_MINOR__ > 7
FIT_STATIC_TEST_CHECK(std::make_pair(1, 2) == fit::construct<std::pair>()(1, 2));
#endif
}
FIT_TEST_CASE()
{
auto make = fit::construct<std::tuple>().by(fit::_1 * fit::_1);
auto t = make(1, 2, 3);
static_assert(std::is_same<std::tuple<int, int, int>, decltype(t)>::value, "");
FIT_TEST_CHECK(t == std::make_tuple(1, 4, 9));
}
FIT_TEST_CASE()
{
auto f = fit::conditional(fit::construct<std::pair>(), fit::identity);
FIT_TEST_CHECK(f(1, 2) == std::make_pair(1, 2));
FIT_TEST_CHECK(f(1) == 1);
}
FIT_TEST_CASE()
{
auto x = fit::construct<ac>()(1);
static_assert(std::is_same<ac<int>, decltype(x)>::value, "");
FIT_TEST_CHECK(x.value == ac<int>(1).value);
FIT_STATIC_TEST_CHECK(ac<int>(1).value == fit::construct<ac>()(1).value);
}