const_container/test/common_helper/test_define_test.hpp

90 lines
2.4 KiB
C++

//
// Created by Patrick Maschek on 08/04/2024.
//
#ifndef CONST_CONTAINER_TEST_DEFINE_TEST_HPP_
#define CONST_CONTAINER_TEST_DEFINE_TEST_HPP_
#include <array>
#include <concepts>
#include <tuple>
#include "test_ret_val.h"
template<std::invocable Func>
struct test_def_base {
using FuncType = Func;
const char *name;
Func func;
constexpr test_def_base(const char * name, Func func) : name(name), func(func) {}
virtual constexpr std::invoke_result_t<Func> operator()() { return std::apply(func, std::make_tuple()); }
};
template<std::invocable Func, typename ...Args>
struct test_definition : public test_def_base<Func> {
using base = test_def_base<Func>;
static constexpr std::size_t ARG_SIZE = sizeof...(Args);
std::tuple<Args...> args;
constexpr test_definition(const char *name, Func func, Args ...args)
: test_def_base<Func>(name, func), args(std::make_tuple(args...)) {}
constexpr std::invoke_result_t<Func, Args...> operator()() override { return std::apply(base::func, args); }
};
struct test_suite_base {
const char *name;
};
template<typename ...TestDefs>
requires (sizeof...(TestDefs) == 0 || (std::derived_from<TestDefs, test_def_base<typename TestDefs::FuncType>> && ...))
struct test_suite : public test_suite_base {
static constexpr std::size_t TEST_NR = sizeof...(TestDefs);
std::tuple<TestDefs...> tests;
constexpr test_suite(const char *name, std::tuple<TestDefs...> tests) : test_suite_base(name), tests(tests) {}
constexpr ret_val<TEST_NR> run() {
std::vector<ret_val_s> v;
std::apply([&v](auto&& ...args) { ((v.push_back(args())), ...); }, tests);
ret_val<TEST_NR> ret = { name };
std::ranges::move(v, ret.vals.begin());
return ret;
}
};
template<typename Suite>
struct quick_test_def {
Suite current;
template<std::invocable Func, typename ...Args>
constexpr auto operator()(const char *name, Func func, Args... args) {
auto test = test_definition(name, func, args...);
auto new_suite = test_suite(current.name, std::tuple_cat(current.tests, std::make_tuple(test)));
return quick_test_def<decltype(new_suite)> { new_suite };
}
constexpr operator Suite() {
return current;
}
};
template<typename ...TestDefs>
test_suite(quick_test_def<test_suite<TestDefs...>>) -> test_suite<TestDefs...>;
constexpr auto define_tests(const char *name) {
return quick_test_def { test_suite<>{ name, std::make_tuple() } };
}
#endif //CONST_CONTAINER_TEST_DEFINE_TEST_HPP_