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// Copyright 2018-2024 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>
#ifdef BOOST_LEAF_NO_EXCEPTIONS
#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/diagnostics.hpp>
# include <boost/leaf/pred.hpp>
# include <boost/leaf/exception.hpp>
# include <boost/leaf/on_error.hpp>
#endif
#include "lightweight_test.hpp"
namespace leaf = boost::leaf;
struct info { int value; };
struct abstract_base_exception
{
virtual ~abstract_base_exception() { }
virtual int get_val() const = 0;
};
struct my_exception:
std::exception,
abstract_base_exception
{
int val;;
explicit my_exception(int v): val{v} { }
int get_val() const { return val; }
};
int get_val( abstract_base_exception const & ex )
{
return ex.get_val();
}
int get_val( my_exception const & ex )
{
return ex.val;
}
int get_val( leaf::catch_<abstract_base_exception> const & ex )
{
return ex.matched.get_val();
}
int get_val( leaf::catch_<my_exception> const & ex )
{
return ex.matched.val;
}
template <class Ex, class F>
int test( F && f )
{
return leaf::try_catch(
[&]() -> int
{
f();
return 0;
},
[]( Ex ex, leaf::match_value<info,42>, leaf::e_source_location )
{
BOOST_TEST_EQ(get_val(ex), 42);
return 20;
},
[]( Ex ex, leaf::match_value<info,42>, info )
{
BOOST_TEST_EQ(get_val(ex), 42);
return 21;
},
[]( Ex ex, leaf::e_source_location )
{
BOOST_TEST_EQ(get_val(ex), 42);
return 22;
},
[]( Ex ex )
{
BOOST_TEST_EQ(get_val(ex), 42);
return 23;
},
[]( leaf::match_value<info,42>, leaf::e_source_location )
{
return 40;
},
[]( leaf::match_value<info,42>, info )
{
return 41;
},
[]( leaf::e_source_location )
{
return 42;
},
[]
{
return 43;
} );
}
int main()
{
BOOST_TEST_EQ(20, test<leaf::catch_<my_exception>>([]{ BOOST_LEAF_THROW_EXCEPTION(my_exception(42), info{42}); }));
BOOST_TEST_EQ(21, test<leaf::catch_<my_exception>>([]{ leaf::throw_exception(my_exception(42), info{42}); }));
BOOST_TEST_EQ(21, test<leaf::catch_<my_exception>>([]{ my_exception exc(42); leaf::throw_exception(exc, info{42}); }));
BOOST_TEST_EQ(21, test<leaf::catch_<my_exception>>([]{ my_exception const exc(42); leaf::throw_exception(exc, info{42}); }));
BOOST_TEST_EQ(22, test<leaf::catch_<my_exception>>([]{ BOOST_LEAF_THROW_EXCEPTION(my_exception(42)); }));
BOOST_TEST_EQ(23, test<leaf::catch_<my_exception>>([]{ leaf::throw_exception(my_exception(42)); }));
BOOST_TEST_EQ(23, test<leaf::catch_<my_exception>>([]{ my_exception exc(42); leaf::throw_exception(exc); }));
BOOST_TEST_EQ(23, test<leaf::catch_<my_exception>>([]{ my_exception const exc(42); leaf::throw_exception(exc); }));
BOOST_TEST_EQ(20, test<my_exception const &>([]{ BOOST_LEAF_THROW_EXCEPTION(my_exception(42), info{42}); }));
BOOST_TEST_EQ(21, test<my_exception const &>([]{ leaf::throw_exception(my_exception(42), info{42}); }));
BOOST_TEST_EQ(21, test<my_exception const &>([]{ my_exception exc(42); leaf::throw_exception(exc, info{42}); }));
BOOST_TEST_EQ(21, test<my_exception const &>([]{ my_exception const exc(42); leaf::throw_exception(exc, info{42}); }));
BOOST_TEST_EQ(22, test<my_exception const &>([]{ BOOST_LEAF_THROW_EXCEPTION(my_exception(42)); }));
BOOST_TEST_EQ(23, test<my_exception const &>([]{ leaf::throw_exception(my_exception(42)); }));
BOOST_TEST_EQ(23, test<my_exception const &>([]{ my_exception exc(42); leaf::throw_exception(exc); }));
BOOST_TEST_EQ(23, test<my_exception const &>([]{ my_exception const exc(42); leaf::throw_exception(exc); }));
BOOST_TEST_EQ(40, test<my_exception &>([]{ BOOST_LEAF_THROW_EXCEPTION(info{42}); }));
BOOST_TEST_EQ(41, test<my_exception &>([]{ leaf::throw_exception(info{42}); }));
BOOST_TEST_EQ(41, test<my_exception &>([]{ info inf{42}; leaf::throw_exception(inf); }));
BOOST_TEST_EQ(41, test<my_exception &>([]{ info const inf{42}; leaf::throw_exception(inf); }));
BOOST_TEST_EQ(42, test<my_exception &>([]{ BOOST_LEAF_THROW_EXCEPTION(); }));
BOOST_TEST_EQ(43, test<my_exception &>([]{ leaf::throw_exception(); }));
BOOST_TEST_EQ(23, test<my_exception &>([]{ my_exception exc(42); leaf::throw_exception(exc); }));
BOOST_TEST_EQ(23, test<my_exception &>([]{ my_exception const exc(42); leaf::throw_exception(exc); }));
BOOST_TEST_EQ(20, test<my_exception const>([]{ BOOST_LEAF_THROW_EXCEPTION(my_exception(42), info{42}); }));
BOOST_TEST_EQ(21, test<my_exception const>([]{ leaf::throw_exception(my_exception(42), info{42}); }));
BOOST_TEST_EQ(21, test<my_exception const>([]{ my_exception exc(42); leaf::throw_exception(exc, info{42}); }));
BOOST_TEST_EQ(21, test<my_exception const>([]{ my_exception const exc(42); leaf::throw_exception(exc, info{42}); }));
BOOST_TEST_EQ(22, test<my_exception const>([]{ BOOST_LEAF_THROW_EXCEPTION(my_exception(42)); }));
BOOST_TEST_EQ(23, test<my_exception const>([]{ leaf::throw_exception(my_exception(42)); }));
BOOST_TEST_EQ(23, test<my_exception const>([]{ my_exception exc(42); leaf::throw_exception(exc); }));
BOOST_TEST_EQ(23, test<my_exception const>([]{ my_exception const exc(42); leaf::throw_exception(exc); }));
BOOST_TEST_EQ(40, test<my_exception>([]{ BOOST_LEAF_THROW_EXCEPTION(info{42}); }));
BOOST_TEST_EQ(41, test<my_exception>([]{ leaf::throw_exception(info{42}); }));
BOOST_TEST_EQ(41, test<my_exception>([]{ info inf{42}; leaf::throw_exception(inf); }));
BOOST_TEST_EQ(41, test<my_exception>([]{ info const inf{42}; leaf::throw_exception(inf); }));
BOOST_TEST_EQ(42, test<my_exception>([]{ BOOST_LEAF_THROW_EXCEPTION(); }));
BOOST_TEST_EQ(43, test<my_exception>([]{ leaf::throw_exception(); }));
BOOST_TEST_EQ(23, test<my_exception>([]{ my_exception exc(42); leaf::throw_exception(exc); }));
BOOST_TEST_EQ(23, test<my_exception>([]{ my_exception const exc(42); leaf::throw_exception(exc); }));
BOOST_TEST_EQ(20, test<leaf::catch_<abstract_base_exception>>([]{ BOOST_LEAF_THROW_EXCEPTION(my_exception(42), info{42}); }));
BOOST_TEST_EQ(21, test<leaf::catch_<abstract_base_exception>>([]{ leaf::throw_exception(my_exception(42), info{42}); }));
BOOST_TEST_EQ(21, test<leaf::catch_<abstract_base_exception>>([]{ my_exception exc(42); leaf::throw_exception(exc, info{42}); }));
BOOST_TEST_EQ(21, test<leaf::catch_<abstract_base_exception>>([]{ my_exception const exc(42); leaf::throw_exception(exc, info{42}); }));
BOOST_TEST_EQ(22, test<leaf::catch_<abstract_base_exception>>([]{ BOOST_LEAF_THROW_EXCEPTION(my_exception(42)); }));
BOOST_TEST_EQ(23, test<leaf::catch_<abstract_base_exception>>([]{ leaf::throw_exception(my_exception(42)); }));
BOOST_TEST_EQ(23, test<leaf::catch_<abstract_base_exception>>([]{ my_exception exc(42); leaf::throw_exception(exc); }));
BOOST_TEST_EQ(23, test<leaf::catch_<abstract_base_exception>>([]{ my_exception const exc(42); leaf::throw_exception(exc); }));
BOOST_TEST_EQ(20, test<abstract_base_exception const &>([]{ BOOST_LEAF_THROW_EXCEPTION(my_exception(42), info{42}); }));
BOOST_TEST_EQ(21, test<abstract_base_exception const &>([]{ leaf::throw_exception(my_exception(42), info{42}); }));
BOOST_TEST_EQ(21, test<abstract_base_exception const &>([]{ my_exception exc(42); leaf::throw_exception(exc, info{42}); }));
BOOST_TEST_EQ(21, test<abstract_base_exception const &>([]{ my_exception const exc(42); leaf::throw_exception(exc, info{42}); }));
BOOST_TEST_EQ(22, test<abstract_base_exception const &>([]{ BOOST_LEAF_THROW_EXCEPTION(my_exception(42)); }));
BOOST_TEST_EQ(23, test<abstract_base_exception const &>([]{ leaf::throw_exception(my_exception(42)); }));
BOOST_TEST_EQ(23, test<abstract_base_exception const &>([]{ my_exception exc(42); leaf::throw_exception(exc); }));
BOOST_TEST_EQ(23, test<abstract_base_exception const &>([]{ my_exception const exc(42); leaf::throw_exception(exc); }));
BOOST_TEST_EQ(40, test<abstract_base_exception &>([]{ BOOST_LEAF_THROW_EXCEPTION(info{42}); }));
BOOST_TEST_EQ(41, test<abstract_base_exception &>([]{ leaf::throw_exception(info{42}); }));
BOOST_TEST_EQ(41, test<abstract_base_exception &>([]{ info inf{42}; leaf::throw_exception(inf); }));
BOOST_TEST_EQ(41, test<abstract_base_exception &>([]{ info const inf{42}; leaf::throw_exception(inf); }));
BOOST_TEST_EQ(42, test<abstract_base_exception &>([]{ BOOST_LEAF_THROW_EXCEPTION(); }));
BOOST_TEST_EQ(43, test<abstract_base_exception &>([]{ leaf::throw_exception(); }));
BOOST_TEST_EQ(23, test<abstract_base_exception &>([]{ my_exception exc(42); leaf::throw_exception(exc); }));
BOOST_TEST_EQ(23, test<abstract_base_exception &>([]{ my_exception const exc(42); leaf::throw_exception(exc); }));
{
char const * wh = 0;
leaf::try_catch(
[]
{
throw std::runtime_error("Test");
},
[&]( std::exception const & ex )
{
wh = ex.what();
} );
BOOST_TEST(wh != 0 || !strcmp(wh,"Test"));
}
{
int const id = leaf::detail::current_id();
BOOST_TEST_EQ( 21, test<my_exception const &>( []
{
auto load = leaf::on_error(info{42});
throw my_exception(42);
} ) );
BOOST_TEST_NE(id, leaf::detail::current_id());
}
{
int const id = leaf::detail::current_id();
BOOST_TEST_EQ( 21, test<my_exception &>( []
{
auto load = leaf::on_error(info{42});
throw my_exception(42);
} ) );
BOOST_TEST_NE(id, leaf::detail::current_id());
}
{
BOOST_TEST_EQ( 23, test<my_exception const &>( []
{
int const id = leaf::detail::current_id();
try
{
leaf::try_catch(
[]
{
throw my_exception(42);
} );
}
catch(...)
{
BOOST_TEST_EQ(id, leaf::detail::current_id());
throw;
}
} ) );
}
{
BOOST_TEST_EQ( 23, test<my_exception &>( []
{
int const id = leaf::detail::current_id();
try
{
leaf::try_catch(
[]
{
throw my_exception(42);
} );
}
catch(...)
{
BOOST_TEST_EQ(id, leaf::detail::current_id());
throw;
}
} ) );
}
{
leaf::try_catch(
[]
{
leaf::throw_exception( info{42} );
},
[]( info x )
{
BOOST_TEST_EQ(x.value, 42);
} );
int r = leaf::try_catch(
[]() -> int
{
throw std::exception();
},
[]( info )
{
return -1;
},
[]
{
return 1;
} );
BOOST_TEST_EQ(r, 1);
}
return boost::report_errors();
}
#endif
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