assert_match.hpp

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// SPDX-FileCopyrightText: 2026 Klaus Reimer <k@ailis.de>
// SPDX-License-Identifier: MIT
 
#pragma once
 
#include <format>
#include <optional>
#include <regex>
#include <source_location>
#include <string>
#include <string_view>
#include <utility>
 
#include <kaycxx/test/assertion_error.hpp>
#include <kaycxx/test/detail/regex_matches.hpp>
#include <kaycxx/test/detail/string_like.hpp>
#include <kaycxx/test/detail/to_string.hpp>
 
namespace kaycxx::test {
 
template <detail::string_like T>
void assert_match(
    T const& actual,
    std::string_view pattern,
    std::string_view reason = {},
    std::optional<std::source_location> location = std::source_location::current()
) {
    auto regex = std::regex(std::string(pattern));
    if (!detail::regex_matches(actual, regex)) {
        auto actual_string = detail::to_string(actual);
        auto expected_string = std::format("/{}/", pattern);
        auto message = std::format("Expected <{}> to match <{}>", actual_string, expected_string);
        throw assertion_error(message, reason, std::move(actual_string), std::move(expected_string), location);
    }
}
 
template <detail::string_like T>
void assert_match(
    T const& actual,
    std::regex const& regex,
    std::string_view reason = {},
    std::optional<std::source_location> location = std::source_location::current()
) {
    if (!detail::regex_matches(actual, regex)) {
        auto actual_string = detail::to_string(actual);
        auto message = std::format("Expected <{}> to match regex", actual_string);
 
        throw assertion_error(message, reason, std::move(actual_string), "regex", location);
    }
}
 
} // namespace kaycxx::test