ceph/src/boost/libs/metaparse/test/first_of.cpp

   1 // Copyright Abel Sinkovics (abel@sinkovics.hu) 2010.
   2 // Distributed under the Boost Software License, Version 1.0.
   3 //    (See accompanying file LICENSE_1_0.txt or copy at
   4 //          http://www.boost.org/LICENSE_1_0.txt)
   5
   6 #include <boost/metaparse/first_of.hpp>
   7 #include <boost/metaparse/is_error.hpp>
   8 #include <boost/metaparse/start.hpp>
   9 #include <boost/metaparse/get_result.hpp>
  10
  11 #include "common.hpp"
  12
  13 #include <boost/mpl/equal_to.hpp>
  14 #include <boost/mpl/apply_wrap.hpp>
  15 #include <boost/mpl/assert.hpp>
  16
  17 #include "test_case.hpp"
  18
  19 BOOST_METAPARSE_TEST_CASE(first_of)
  20 {
  21   using boost::metaparse::get_result;
  22   using boost::metaparse::first_of;
  23   using boost::metaparse::start;
  24   using boost::metaparse::is_error;
  25
  26   using boost::mpl::equal_to;
  27   using boost::mpl::apply_wrap2;
  28
  29   // test_one_char
  30   BOOST_MPL_ASSERT((
  31     equal_to<
  32       get_result<apply_wrap2<first_of<lit_h>, str_hello, start> >::type,
  33       char_h
  34     >
  35   ));
  36
  37   // test_two_chars
  38   BOOST_MPL_ASSERT((
  39     equal_to<
  40       get_result<apply_wrap2<first_of<lit_h, lit_e>, str_hello, start> >::type,
  41       char_h
  42     >
  43   ));
  44
  45   // test_first_fails
  46   BOOST_MPL_ASSERT((
  47     is_error<apply_wrap2<first_of<lit_x, lit_e>, str_hello, start> >
  48   ));
  49
  50   // test_second_fails
  51   BOOST_MPL_ASSERT((
  52     is_error<apply_wrap2<first_of<lit_h, lit_x>, str_hello, start> >
  53   ));
  54
  55   // test_empty_input
  56   BOOST_MPL_ASSERT((is_error<apply_wrap2<first_of<lit_h,lit_e>, str_,start> >));
  57
  58   // test_three_chars
  59   BOOST_MPL_ASSERT((
  60     equal_to<
  61       get_result<
  62         apply_wrap2<first_of<lit_h, lit_e, lit_l>, str_hello, start>
  63       >::type,
  64       char_h
  65     >
  66   ));
  67 }
  68