98 lines
2.3 KiB
C++
98 lines
2.3 KiB
C++
// Copyright Abel Sinkovics (abel@sinkovics.hu) 2010.
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// Distributed under the Boost Software License, Version 1.0.
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// (See accompanying file LICENSE_1_0.txt or copy at
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// http://www.boost.org/LICENSE_1_0.txt)
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#include <boost/metaparse/nth_of.hpp>
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#include <boost/metaparse/nth_of_c.hpp>
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#include <boost/metaparse/is_error.hpp>
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#include <boost/metaparse/get_result.hpp>
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#include <boost/metaparse/start.hpp>
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#include "common.hpp"
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#include <boost/mpl/equal_to.hpp>
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#include <boost/mpl/apply_wrap.hpp>
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#include <boost/mpl/assert.hpp>
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#include "test_case.hpp"
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BOOST_METAPARSE_TEST_CASE(nth_of)
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{
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using boost::metaparse::get_result;
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using boost::metaparse::nth_of_c;
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using boost::metaparse::start;
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using boost::metaparse::nth_of;
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using boost::metaparse::is_error;
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using boost::mpl::equal_to;
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using boost::mpl::apply_wrap2;
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namespace mpl = boost::mpl;
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namespace mp = boost::metaparse;
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// test_first_of_one
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BOOST_MPL_ASSERT((
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equal_to<
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get_result<apply_wrap2<nth_of_c<0, lit_h>, str_hello, start> >::type,
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char_h
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>
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));
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// test_first_of_two
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BOOST_MPL_ASSERT((
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equal_to<
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get_result<
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apply_wrap2<nth_of_c<0, lit_h, lit_e>, str_hello, start>
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>::type,
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char_h
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>
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));
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// test_second_of_two
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BOOST_MPL_ASSERT((
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equal_to<
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get_result<
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apply_wrap2<nth_of<int1, lit_h, lit_e>, str_hello, start>
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>::type,
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char_e
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>
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));
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// test_nothing
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BOOST_MPL_ASSERT((
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is_error<apply_wrap2<nth_of_c<1, lit_x, lit_e>, str_hello, start> >
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));
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// test_first_of_none
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BOOST_MPL_ASSERT((
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is_error<apply_wrap2<nth_of_c<0>, str_hello, start> >
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));
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// test_n_is_less_than_zero
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BOOST_MPL_ASSERT((
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is_error<apply_wrap2<nth_of_c<-1, lit_h, lit_e>, str_hello, start> >
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));
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// test_n_is_greater_than_the_number_of_parsers
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BOOST_MPL_ASSERT((
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is_error<apply_wrap2<nth_of_c<2, lit_h, lit_e>, str_hello, start> >
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));
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// test_error_before_the_nth
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BOOST_MPL_ASSERT((
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is_error<apply_wrap2<nth_of_c<1, lit_x, lit_e, lit_l>, str_hello, start> >
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));
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// test_error_at_the_nth
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BOOST_MPL_ASSERT((
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is_error<apply_wrap2<nth_of_c<1, lit_h, lit_x, lit_l>, str_hello, start> >
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));
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// test_error_after_the_nth
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BOOST_MPL_ASSERT((
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is_error<apply_wrap2<nth_of_c<1, lit_h, lit_e, lit_x>, str_hello, start> >
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));
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}
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