AimRT/_deps/boost-src/libs/leaf/test/print_test.cpp
2025-01-12 20:40:48 +08:00

127 lines
2.4 KiB
C++

// Copyright 2018-2022 Emil Dotchevski and Reverge Studios, Inc.
// Distributed under the Boost Software License, Version 1.0. (See accompanying
// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
#include <boost/leaf/config.hpp>
#if !BOOST_LEAF_CFG_DIAGNOSTICS
#include <iostream>
int main()
{
std::cout << "Unit test not applicable." << std::endl;
return 0;
}
#else
#ifdef BOOST_LEAF_TEST_SINGLE_HEADER
# include "leaf.hpp"
#else
# include <boost/leaf/detail/print.hpp>
#endif
#include "lightweight_test.hpp"
#include <sstream>
namespace leaf = boost::leaf;
struct c0
{
friend std::ostream & operator<<( std::ostream & os, c0 const & )
{
return os << "c0";
}
};
struct c1
{
int value;
friend std::ostream & operator<<( std::ostream & os, c1 const & )
{
return os << "c1";
}
};
struct c2
{
int value;
};
std::ostream & operator<<( std::ostream & os, c2 const & )
{
return os << "c2";
}
struct c3
{
int value;
};
struct c4
{
struct unprintable { };
unprintable value;;
};
template <class T>
bool check( T const & x, char const * sub )
{
using namespace leaf::leaf_detail;
std::ostringstream s;
diagnostic<T>::print(s,x);
std::string q = s.str();
return q.find(sub)!=q.npos;
}
struct my_exception: std::exception
{
char const * what() const noexcept override { return "my_exception_what"; }
};
int main()
{
BOOST_TEST(check(c0{ },"c0"));
BOOST_TEST(check(c1{42},"c1"));
{
c1 x;
c1 & y = x;
BOOST_TEST(check(x,"c1"));
BOOST_TEST(check(y,"c1"));
}
BOOST_TEST(check(c2{42},"c2"));
{
c2 x = {42};
c2 & y = x;
BOOST_TEST(check(x,"c2"));
BOOST_TEST(check(y,"c2"));
}
BOOST_TEST(check(c3{42},"c3"));
BOOST_TEST(check(c3{42},"42"));
{
c3 x = {42};
c3 & y = x;
BOOST_TEST(check(x,"c3"));
BOOST_TEST(check(x,"42"));
BOOST_TEST(check(y,"c3"));
BOOST_TEST(check(y,"42"));
}
BOOST_TEST(check(c4(),"c4"));
BOOST_TEST(check(c4(),"{Non-Printable}"));
{
c4 x;
c4 & y = x;
BOOST_TEST(check(x,"c4"));
BOOST_TEST(check(x,"{Non-Printable}"));
BOOST_TEST(check(y,"c4"));
BOOST_TEST(check(y,"{Non-Printable}"));
}
BOOST_TEST(check(my_exception{}, "std::exception::what(): my_exception_what"));
return boost::report_errors();
}
#endif