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/accept_when.hpp>
7 #include <boost/metaparse/get_result.hpp>
8 #include <boost/metaparse/util/is_digit.hpp>
9 #include <boost/metaparse/is_error.hpp>
10 #include <boost/metaparse/start.hpp>
11 #include <boost/metaparse/one_char.hpp>
12
13 #include "common.hpp"
14
15 #include <boost/metaparse/util/is_digit.hpp>
16
17 #include <boost/mpl/equal_to.hpp>
18 #include <boost/mpl/apply_wrap.hpp>
19 #include <boost/mpl/assert.hpp>
20
21 #include "test_case.hpp"
22
BOOST_METAPARSE_TEST_CASE(accept_when)23 BOOST_METAPARSE_TEST_CASE(accept_when)
24 {
25 using boost::metaparse::is_error;
26 using boost::metaparse::accept_when;
27 using boost::metaparse::one_char;
28 using boost::metaparse::start;
29 using boost::metaparse::get_result;
30
31 using boost::metaparse::util::is_digit;
32
33 using boost::mpl::apply;
34 using boost::mpl::equal_to;
35 using boost::mpl::apply_wrap2;
36
37 // test_with_text
38 BOOST_MPL_ASSERT((
39 is_error<
40 apply_wrap2<
41 accept_when<one_char, is_digit<>, test_failure>,
42 str_hello,
43 start
44 >
45 >
46 ));
47
48 // test_with_number
49 BOOST_MPL_ASSERT((
50 equal_to<
51 get_result<
52 apply_wrap2<
53 accept_when<one_char, is_digit<>, test_failure>,
54 str_1983,
55 start
56 >
57 >::type,
58 char_1
59 >
60 ));
61
62 // test_with_empty_string
63 BOOST_MPL_ASSERT((
64 is_error<
65 apply_wrap2<accept_when<one_char, is_digit<>, test_failure>, str_, start>
66 >
67 ));
68 }
69
70