metaparse/test/middle_of.cpp

82 lines
2.0 KiB
C++

// Copyright Abel Sinkovics (abel@sinkovics.hu) 2010.
// 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/metaparse/middle_of.hpp>
#include <boost/metaparse/is_error.hpp>
#include <boost/metaparse/start.hpp>
#include <boost/metaparse/get_result.hpp>
#include <boost/metaparse/get_message.hpp>
#include <boost/metaparse/error/unpaired.hpp>
#include <boost/metaparse/error/literal_expected.hpp>
#include "common.hpp"
#include <boost/mpl/equal_to.hpp>
#include <boost/mpl/apply_wrap.hpp>
#include <boost/mpl/assert.hpp>
#include <boost/type_traits/is_same.hpp>
#include "test_case.hpp"
BOOST_METAPARSE_TEST_CASE(middle_of)
{
using boost::metaparse::get_result;
using boost::metaparse::middle_of;
using boost::metaparse::start;
using boost::metaparse::is_error;
using boost::metaparse::get_message;
using boost::metaparse::error::unpaired;
using boost::metaparse::error::literal_expected;
using boost::is_same;
using boost::mpl::equal_to;
using boost::mpl::apply_wrap2;
// test_three_chars
BOOST_MPL_ASSERT((
equal_to<
get_result<
apply_wrap2<middle_of<lit_h, lit_e, lit_l>, str_hello, start>
>::type,
char_e
>
));
// test_first_fails
BOOST_MPL_ASSERT((
is_error<apply_wrap2<middle_of<lit_x, lit_e, lit_l>, str_hello, start> >
));
// test_second_fails
BOOST_MPL_ASSERT((
is_error<apply_wrap2<middle_of<lit_h, lit_x, lit_l>, str_hello, start> >
));
// test_third_fails
BOOST_MPL_ASSERT((
is_error<apply_wrap2<middle_of<lit_h, lit_e, lit_x>, str_hello, start> >
));
// test_error_message_when_third_fails
BOOST_MPL_ASSERT((
is_same<
unpaired<1, 1, literal_expected<'x'> >,
get_message<
apply_wrap2<middle_of<lit_h, lit_e, lit_x>, str_hello, start>
>::type
>
));
// test_empty_input
BOOST_MPL_ASSERT((
is_error<apply_wrap2<middle_of<lit_h, lit_e, lit_l>, str_, start> >
));
}