| // boost/endian/detail/lightweight_test.hpp --------------------------------------------// |
| |
| #ifndef BOOST_ENDIAN_LIGHTWEIGHT_TEST_HPP |
| #define BOOST_ENDIAN_LIGHTWEIGHT_TEST_HPP |
| |
| // MS compatible compilers support #pragma once |
| |
| #if defined(_MSC_VER) |
| # pragma once |
| #endif |
| |
| // |
| // Copyright (c) 2002, 2009, 2014 Peter Dimov |
| // Copyright (2) Beman Dawes 2010, 2011, 2015 |
| // Copyright (3) Ion Gaztanaga 2013 |
| // |
| // Distributed under the Boost Software License, Version 1.0. |
| // See http://www.boost.org/LICENSE_1_0.txt |
| // |
| |
| #include <boost/assert.hpp> |
| #include <boost/current_function.hpp> |
| #include <boost/core/no_exceptions_support.hpp> |
| #include <cstring> // for memcmp |
| #include <iostream> |
| |
| // IDE's like Visual Studio perform better if output goes to std::cout or |
| // some other stream, so allow user to configure output stream: |
| #ifndef BOOST_LIGHTWEIGHT_TEST_OSTREAM |
| # define BOOST_LIGHTWEIGHT_TEST_OSTREAM std::cerr |
| #endif |
| |
| namespace boost |
| { |
| namespace endian |
| { |
| namespace detail |
| { |
| |
| struct report_errors_reminder |
| { |
| bool called_report_errors_function; |
| |
| report_errors_reminder() : called_report_errors_function(false) {} |
| |
| ~report_errors_reminder() |
| { |
| BOOST_ASSERT(called_report_errors_function); // verify report_errors() was called |
| } |
| }; |
| |
| inline report_errors_reminder& report_errors_remind() |
| { |
| static report_errors_reminder r; |
| return r; |
| } |
| |
| inline int & test_errors() |
| { |
| static int x = 0; |
| report_errors_remind(); |
| return x; |
| } |
| |
| inline void test_failed_impl(char const * expr, char const * file, int line, char const * function) |
| { |
| BOOST_LIGHTWEIGHT_TEST_OSTREAM |
| << file << "(" << line << "): test '" << expr << "' failed in function '" |
| << function << "'" << std::endl; |
| ++test_errors(); |
| } |
| |
| inline void error_impl(char const * msg, char const * file, int line, char const * function) |
| { |
| BOOST_LIGHTWEIGHT_TEST_OSTREAM |
| << file << "(" << line << "): " << msg << " in function '" |
| << function << "'" << std::endl; |
| ++test_errors(); |
| } |
| |
| inline void throw_failed_impl(char const * excep, char const * file, int line, char const * function) |
| { |
| BOOST_LIGHTWEIGHT_TEST_OSTREAM |
| << file << "(" << line << "): Exception '" << excep << "' not thrown in function '" |
| << function << "'" << std::endl; |
| ++test_errors(); |
| } |
| |
| template<class T, class U> inline void test_eq_impl( char const * expr1, char const * expr2, |
| char const * file, int line, char const * function, T const & t, U const & u ) |
| { |
| if( t == u ) |
| { |
| report_errors_remind(); |
| } |
| else |
| { |
| BOOST_LIGHTWEIGHT_TEST_OSTREAM |
| << file << "(" << line << "): test '" << expr1 << " == " << expr2 |
| << "' failed in function '" << function << "': " |
| << "'" << t << "' != '" << u << "'" << std::endl; |
| ++test_errors(); |
| } |
| } |
| |
| template<class T, class U> inline void test_ne_impl( char const * expr1, char const * expr2, |
| char const * file, int line, char const * function, T const & t, U const & u ) |
| { |
| if( t != u ) |
| { |
| report_errors_remind(); |
| } |
| else |
| { |
| BOOST_LIGHTWEIGHT_TEST_OSTREAM |
| << file << "(" << line << "): test '" << expr1 << " != " << expr2 |
| << "' failed in function '" << function << "': " |
| << "'" << t << "' == '" << u << "'" << std::endl; |
| ++test_errors(); |
| } |
| } |
| |
| template <class T> |
| std::string to_hex(const T& x) |
| { |
| const char hex[] = { '0','1','2','3','4','5','6','7','8','9','a','b','c','d','e','f' }; |
| std::string tmp; |
| const unsigned char* p = reinterpret_cast<const unsigned char*>(&x); |
| const unsigned char* e = p + sizeof(T); |
| |
| for (; p < e; ++p) |
| { |
| tmp += hex[*p >> 4]; // high-order nibble |
| tmp += hex[*p & 0x0f]; // low-order nibble |
| } |
| return tmp; |
| } |
| |
| template<class T, class U> inline bool test_memcmp_eq_impl(char const * expr1, |
| char const * expr2, char const * file, int line, char const * function, T const & t, |
| U const & u) |
| { |
| BOOST_ASSERT(sizeof(T) == sizeof(U)); |
| if (sizeof(T) == sizeof(U) |
| && std::memcmp(&t, &u, sizeof(T)) == 0) |
| { |
| report_errors_remind(); |
| return true; |
| } |
| else |
| { |
| BOOST_LIGHTWEIGHT_TEST_OSTREAM |
| << file << "(" << line << "): test 'std::memcmp(" << expr1 << ", " << expr2 |
| << ") == 0' fails in function '" << function << "': " |
| << " with values '" << to_hex(t) << "' and '" << to_hex(u) << "'" << std::endl; |
| ++test_errors(); |
| return false; |
| } |
| } |
| |
| } // namespace detail |
| |
| inline int report_errors() |
| { |
| boost::endian::detail::report_errors_remind().called_report_errors_function = true; |
| |
| int errors = boost::endian::detail::test_errors(); |
| |
| if( errors == 0 ) |
| { |
| BOOST_LIGHTWEIGHT_TEST_OSTREAM |
| << "No errors detected." << std::endl; |
| return 0; |
| } |
| else |
| { |
| BOOST_LIGHTWEIGHT_TEST_OSTREAM |
| << errors << " error" << (errors == 1? "": "s") << " detected." << std::endl; |
| return 1; |
| } |
| } |
| |
| } // namespace endian |
| } // namespace boost |
| |
| ////////////////////////////////////////////////////////////////////////////////////////// |
| // TODO: Should all test macros return bool? See BOOST_TEST_MEM_EQ usage in fp_exaustive_test,cpp |
| ////////////////////////////////////////////////////////////////////////////////////////// |
| |
| |
| #define BOOST_TEST(expr) \ |
| ((expr)? (void)0: ::boost::endian::detail::test_failed_impl(#expr, __FILE__, __LINE__, BOOST_CURRENT_FUNCTION)) |
| |
| #define BOOST_ERROR(msg) \ |
| ( ::boost::endian::detail::error_impl(msg, __FILE__, __LINE__, BOOST_CURRENT_FUNCTION) ) |
| |
| #define BOOST_TEST_EQ(expr1,expr2) \ |
| ( ::boost::endian::detail::test_eq_impl(#expr1, #expr2, __FILE__, __LINE__, BOOST_CURRENT_FUNCTION, expr1, expr2) ) |
| #define BOOST_TEST_NE(expr1,expr2) \ |
| ( ::boost::endian::detail::test_ne_impl(#expr1, #expr2, __FILE__, __LINE__, BOOST_CURRENT_FUNCTION, expr1, expr2) ) |
| |
| #define BOOST_TEST_MEM_EQ(expr1,expr2) \ |
| (::boost::endian::detail::test_memcmp_eq_impl(#expr1, #expr2, __FILE__, __LINE__, BOOST_CURRENT_FUNCTION, expr1, expr2)) |
| |
| #ifndef BOOST_NO_EXCEPTIONS |
| #define BOOST_TEST_THROWS( EXPR, EXCEP ) \ |
| try { \ |
| EXPR; \ |
| ::boost::detail::throw_failed_impl \ |
| (#EXCEP, __FILE__, __LINE__, BOOST_CURRENT_FUNCTION); \ |
| } \ |
| catch(EXCEP const&) { \ |
| } \ |
| catch(...) { \ |
| ::boost::detail::throw_failed_impl \ |
| (#EXCEP, __FILE__, __LINE__, BOOST_CURRENT_FUNCTION); \ |
| } \ |
| // |
| #else |
| #define BOOST_TEST_THROWS( EXPR, EXCEP ) |
| #endif |
| |
| #endif // #ifndef BOOST_ENDIAN_LIGHTWEIGHT_TEST_HPP |