// Eggs.Test

//

// Copyright Agustin K-ballo Berge, Fusion Fenix 2026

//

// Distributed under the Boost Software License, Version 1.0. (See accompanying

// file LICENSE.txt or copy at http://www.boost.org/LICENSE_1_0.txt)

#include <eggs/test.hpp>

#include <stdexcept>

#include <string>

#include <string_view>

namespace {

int parse_int(std::string_view s)

{

std::size_t pos = 0;

int const result = std::stoi(std::string(s), &pos);

if (pos != s.size()) throw std::invalid_argument{"trailing characters"};

return result;

}

} // namespace

TEST_CASE(parse_throws, "throwing and non-throwing expressions")

{

CHECK_THROWS(parse_int("abc"));

CHECK_THROWS(parse_int("1abc"));

CHECK_NOTHROW(parse_int("42"));

}

TEST_CASE(parse_throws_as, "matching the exception type")

{

CHECK_THROWS_AS(std::invalid_argument, parse_int("abc"));

CHECK_THROWS_AS(std::exception, parse_int("abc")); // base class matches too

CHECK_THROWS_AS(std::out_of_range, parse_int("99999999999999999999"));

}

TEST_CASE(parse_catches_as, "inspecting the caught exception")

{

CHECK_CATCHES_AS(std::invalid_argument, parse_int("1abc"))

{

CHECK(std::string_view(exc.what()) == "trailing characters");

}

}