Files
bitcoin/src/test/util/common.h
furszy d9c6769d03 test: refactor, decouple HasReason from test framework machinery
Avoid providing the entire unit test framework dependency to tests that only
require access to the HasReason utility class.

E.g. reverselock_tests.cpp, sync_tests.cpp, util_check_tests.cpp, util_string_tests.cpp,
and script_parse_tests.cpp only require access to HasReason and nothing else.
2026-02-26 11:28:55 -03:00

56 lines
1.4 KiB
C++

// Copyright (c) The Bitcoin Core developers
// Distributed under the MIT software license, see the accompanying
// file COPYING or https://www.opensource.org/licenses/mit-license.php.
#ifndef BITCOIN_TEST_UTIL_COMMON_H
#define BITCOIN_TEST_UTIL_COMMON_H
#include <ostream>
#include <optional>
#include <string>
/**
* BOOST_CHECK_EXCEPTION predicates to check the specific validation error.
* Use as
* BOOST_CHECK_EXCEPTION(code that throws, exception type, HasReason("foo"));
*/
class HasReason
{
public:
explicit HasReason(std::string_view reason) : m_reason(reason) {}
bool operator()(std::string_view s) const { return s.find(m_reason) != std::string_view::npos; }
bool operator()(const std::exception& e) const { return (*this)(e.what()); }
private:
const std::string m_reason;
};
// Make types usable in BOOST_CHECK_* @{
namespace std {
template <typename T> requires std::is_enum_v<T>
inline std::ostream& operator<<(std::ostream& os, const T& e)
{
return os << static_cast<std::underlying_type_t<T>>(e);
}
template <typename T>
inline std::ostream& operator<<(std::ostream& os, const std::optional<T>& v)
{
return v ? os << *v
: os << "std::nullopt";
}
} // namespace std
template <typename T>
concept HasToString = requires(const T& t) { t.ToString(); };
template <HasToString T>
inline std::ostream& operator<<(std::ostream& os, const T& obj)
{
return os << obj.ToString();
}
// @}
#endif // BITCOIN_TEST_UTIL_COMMON_H