const_container/test/common_helper/test_define_test.hpp

145 lines
4.4 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 <iostream>
#include <ranges>
#include <tuple>
#include "test_ret_val.h"
template<typename Suite>
struct quick_test_def;
enum class EvalFlag { RUNTIME, CONSTEVAL, RUNTIME_CONSTEVAL };
struct test_def_base {};
template<std::invocable Func>
struct test_def_func_base : public test_def_base {
using FuncType = Func;
const char *name;
Func func;
EvalFlag evalFlag = EvalFlag::RUNTIME;
consteval test_def_func_base(const char * name, Func func) : name(name), func(func) {}
consteval test_def_func_base(const char * name, Func func, EvalFlag evalFlag)
: name(name), func(func), evalFlag(evalFlag) {}
virtual constexpr std::invoke_result_t<Func> operator()() const { return std::apply(func, std::make_tuple()); }
consteval auto run_consteval() const { return operator()(); }
};
template<std::invocable Func, typename ...Args>
struct test_definition : public test_def_func_base<Func> {
using base = test_def_func_base<Func>;
static constexpr std::size_t ARG_SIZE = sizeof...(Args);
std::tuple<Args...> args;
consteval test_definition(const char *name, Func func, Args ...args)
: test_def_func_base<Func>(name, func), args(std::make_tuple(args...)) {}
consteval test_definition(const char *name, Func func, EvalFlag evalFlag, Args ...args)
: test_def_func_base<Func>(name, func, evalFlag), args(std::make_tuple(args...)) {}
constexpr std::invoke_result_t<Func, Args...> operator()() const override { return std::apply(base::func, args); }
};
template<typename ...TestDefs>
requires (sizeof...(TestDefs) == 0 || (std::derived_from<TestDefs, test_def_func_base<typename TestDefs::FuncType>> && ...))
struct test_suite {
template<typename NewTest>
using with_added_test_t = test_suite<TestDefs..., NewTest>;
static constexpr std::size_t TEST_NR = sizeof...(TestDefs);
const char *name;
std::tuple<TestDefs...> tests;
consteval test_suite(const char *name, std::tuple<TestDefs...> tests) : name(name), tests(tests) {}
template<std::size_t ...Is>
[[nodiscard]] constexpr auto get_tests() const {
return get_tests_delegate(std::make_index_sequence<TEST_NR>());
}
template<std::size_t ...Is>
[[nodiscard]] constexpr auto get_tests_delegate(std::index_sequence<Is...>) const {
return std::array { (std::reference_wrapper(std::get<Is>(tests)), ...) };
}
};
template<typename Suite>
struct quick_test_def {
Suite current;
template<std::invocable Func, typename ...Args>
consteval auto operator()(const char *name, Func func, EvalFlag evalFlag, Args... args) const {
auto test = test_definition(name, func, evalFlag, args...);
auto suite = test_suite(name, std::tuple_cat(current.tests, std::make_tuple(test)));
return quick_test_def<decltype(suite)> { .current = suite };
}
constexpr operator Suite() const {
return current;
}
};
template<typename ...TestDefs>
test_suite(quick_test_def<test_suite<TestDefs...>>) -> test_suite<TestDefs...>;
consteval auto define_tests(const char *name) {
return quick_test_def { test_suite<>{ name, std::make_tuple() } };
}
template<std::invocable Test>
requires (std::derived_from<Test, test_def_func_base<typename Test::FuncType>>)
static consteval ret_val_s run_consteval_test(const Test& test) {
return test();
}
template<typename ...TestDefs>
void evaluate_tests(const test_suite<TestDefs...>& tests) {
for (auto [i, test_ref] : std::ranges::views::enumerate(tests.get_tests())) {
auto test = test_ref.get();
std::cout << "Running Test: \"" << test.name << "\"\n";
if (test.evalFlag == EvalFlag::RUNTIME || test.evalFlag == EvalFlag::RUNTIME_CONSTEVAL) {
ret_val_s ret = test();
std::cout << "Result of Runtime Evaluation of Test \"" << ret.test_name << "\" (number: " << i
<< "): "
<< (ret.val == ReturnCode::PASSED ? "PASSED" : "FAILED") << "\n"
<< "\t" << ret.msg << "\n";
}
std::optional<ret_val_s> cret;
if (test.evalFlag == EvalFlag::CONSTEVAL || test.evalFlag == EvalFlag::RUNTIME_CONSTEVAL) {
test.run_consteval();
}
if (cret.has_value()) {
auto ret = cret.value();
std::cout << "Result of Consteval Evaluation of Test \"" << ret.test_name << "\" (number: " << i
<< "): "
<< (ret.val == ReturnCode::PASSED ? "PASSED" : "FAILED") << "\n"
<< "\t" << ret.msg << "\n";
}
}
}
#endif //CONST_CONTAINER_TEST_DEFINE_TEST_HPP_