ceph/src/boost/libs/metaparse/test/middle_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/middle_of.hpp>
   7 #include <boost/metaparse/is_error.hpp>
   8 #include <boost/metaparse/start.hpp>
   9 #include <boost/metaparse/get_result.hpp>
  10 #include <boost/metaparse/get_message.hpp>
  11 #include <boost/metaparse/error/unpaired.hpp>
  12 #include <boost/metaparse/error/literal_expected.hpp>
  13
  14 #include "common.hpp"
  15
  16 #include <boost/mpl/equal_to.hpp>
  17 #include <boost/mpl/apply_wrap.hpp>
  18 #include <boost/mpl/assert.hpp>
  19
  20 #include <boost/type_traits/is_same.hpp>
  21
  22 #include "test_case.hpp"
  23
  24 BOOST_METAPARSE_TEST_CASE(middle_of)
  25 {
  26   using boost::metaparse::get_result;
  27   using boost::metaparse::middle_of;
  28   using boost::metaparse::start;
  29   using boost::metaparse::is_error;
  30   using boost::metaparse::get_message;
  31
  32   using boost::metaparse::error::unpaired;
  33   using boost::metaparse::error::literal_expected;
  34
  35   using boost::is_same;
  36
  37   using boost::mpl::equal_to;
  38   using boost::mpl::apply_wrap2;
  39
  40   // test_three_chars
  41   BOOST_MPL_ASSERT((
  42     equal_to<
  43       get_result<
  44         apply_wrap2<middle_of<lit_h, lit_e, lit_l>, str_hello, start>
  45       >::type,
  46       char_e
  47     >
  48   ));
  49
  50   // test_first_fails
  51   BOOST_MPL_ASSERT((
  52     is_error<apply_wrap2<middle_of<lit_x, lit_e, lit_l>, str_hello, start> >
  53   ));
  54
  55   // test_second_fails
  56   BOOST_MPL_ASSERT((
  57     is_error<apply_wrap2<middle_of<lit_h, lit_x, lit_l>, str_hello, start> >
  58   ));
  59
  60   // test_third_fails
  61   BOOST_MPL_ASSERT((
  62     is_error<apply_wrap2<middle_of<lit_h, lit_e, lit_x>, str_hello, start> >
  63   ));
  64
  65   // test_error_message_when_third_fails
  66   BOOST_MPL_ASSERT((
  67     is_same<
  68       unpaired<1, 1, literal_expected<'x'> >,
  69       get_message<
  70         apply_wrap2<middle_of<lit_h, lit_e, lit_x>, str_hello, start>
  71       >::type
  72     >
  73   ));
  74
  75   // test_empty_input
  76   BOOST_MPL_ASSERT((
  77     is_error<apply_wrap2<middle_of<lit_h, lit_e, lit_l>, str_, start> >
  78   ));
  79 }
  80
  81