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