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