1 // Unit test for boost::lexical_cast.
3 // See http://www.boost.org for most recent version, including documentation.
5 // Copyright Antony Polukhin, 2011.
7 // Distributed under the Boost
8 // Software License, Version 1.0. (See accompanying file
9 // LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt).
11 #include <boost/config.hpp>
13 #if defined(__INTEL_COMPILER)
14 #pragma warning(disable: 193 383 488 981 1418 1419)
15 #elif defined(BOOST_MSVC)
16 #pragma warning(disable: 4097 4100 4121 4127 4146 4244 4245 4511 4512 4701 4800)
19 #include <boost/lexical_cast.hpp>
20 #include <boost/test/unit_test.hpp>
21 #include <boost/range/iterator_range.hpp>
23 using namespace boost
;
25 #if defined(BOOST_NO_STRINGSTREAM) || defined(BOOST_NO_STD_WSTRING)
26 #define BOOST_LCAST_NO_WCHAR_T
30 void do_test_on_empty_input(T
& v
)
32 BOOST_CHECK_THROW(lexical_cast
<int>(v
), bad_lexical_cast
);
33 BOOST_CHECK_THROW(lexical_cast
<float>(v
), bad_lexical_cast
);
34 BOOST_CHECK_THROW(lexical_cast
<double>(v
), bad_lexical_cast
);
35 #ifndef BOOST_MATH_NO_LONG_DOUBLE_MATH_FUNCTIONS
36 BOOST_CHECK_THROW(lexical_cast
<long double>(v
), bad_lexical_cast
);
38 BOOST_CHECK_THROW(lexical_cast
<unsigned int>(v
), bad_lexical_cast
);
39 BOOST_CHECK_THROW(lexical_cast
<unsigned short>(v
), bad_lexical_cast
);
40 #if defined(BOOST_HAS_LONG_LONG)
41 BOOST_CHECK_THROW(lexical_cast
<boost::ulong_long_type
>(v
), bad_lexical_cast
);
42 BOOST_CHECK_THROW(lexical_cast
<boost::long_long_type
>(v
), bad_lexical_cast
);
43 #elif defined(BOOST_HAS_MS_INT64)
44 BOOST_CHECK_THROW(lexical_cast
<unsigned __int64
>(v
), bad_lexical_cast
);
45 BOOST_CHECK_THROW(lexical_cast
<__int64
>(v
), bad_lexical_cast
);
49 void test_empty_iterator_range()
52 boost::iterator_range
<char*> v
;
53 do_test_on_empty_input(v
);
54 BOOST_CHECK_EQUAL(lexical_cast
<std::string
>(v
), std::string());
55 BOOST_CHECK_THROW(lexical_cast
<char>(v
), bad_lexical_cast
);
56 BOOST_CHECK_THROW(lexical_cast
<unsigned char>(v
), bad_lexical_cast
);
57 BOOST_CHECK_THROW(lexical_cast
<signed char>(v
), bad_lexical_cast
);
59 boost::iterator_range
<const char*> cv
;
60 do_test_on_empty_input(cv
);
61 BOOST_CHECK_EQUAL(lexical_cast
<std::string
>(cv
), std::string());
62 BOOST_CHECK_THROW(lexical_cast
<char>(cv
), bad_lexical_cast
);
63 BOOST_CHECK_THROW(lexical_cast
<unsigned char>(cv
), bad_lexical_cast
);
64 BOOST_CHECK_THROW(lexical_cast
<signed char>(cv
), bad_lexical_cast
);
66 const boost::iterator_range
<const char*> ccv
;
67 do_test_on_empty_input(ccv
);
68 BOOST_CHECK_EQUAL(lexical_cast
<std::string
>(ccv
), std::string());
69 BOOST_CHECK_THROW(lexical_cast
<char>(ccv
), bad_lexical_cast
);
70 BOOST_CHECK_THROW(lexical_cast
<unsigned char>(ccv
), bad_lexical_cast
);
71 BOOST_CHECK_THROW(lexical_cast
<signed char>(ccv
), bad_lexical_cast
);
74 void test_empty_string()
77 do_test_on_empty_input(v
);
78 BOOST_CHECK_THROW(lexical_cast
<char>(v
), bad_lexical_cast
);
79 BOOST_CHECK_THROW(lexical_cast
<unsigned char>(v
), bad_lexical_cast
);
80 BOOST_CHECK_THROW(lexical_cast
<signed char>(v
), bad_lexical_cast
);
82 #ifndef BOOST_LCAST_NO_WCHAR_T
84 do_test_on_empty_input(vw
);
85 BOOST_CHECK_THROW(lexical_cast
<wchar_t>(vw
), bad_lexical_cast
);
88 // Currently, no compiler and STL library fully support char16_t and char32_t
89 //#ifndef BOOST_NO_CXX11_CHAR16_T
90 // std::basic_string<char16_t> v16w;
91 // do_test_on_empty_input(v16w);
92 // BOOST_CHECK_THROW(lexical_cast<char16_t>(v16w), bad_lexical_cast);
94 //#ifndef BOOST_NO_CXX11_CHAR32_T
95 // std::basic_string<char32_t> v32w;
96 // do_test_on_empty_input(v32w);
97 // BOOST_CHECK_THROW(lexical_cast<char32_t>(v32w), bad_lexical_cast);
103 Escape(const std::string
& s
)
110 inline std::ostream
& operator<< (std::ostream
& o
, const Escape
& rhs
)
112 return o
<< rhs
.str_
;
115 void test_empty_user_class()
118 do_test_on_empty_input(v
);
119 BOOST_CHECK_THROW(lexical_cast
<char>(v
), bad_lexical_cast
);
120 BOOST_CHECK_THROW(lexical_cast
<unsigned char>(v
), bad_lexical_cast
);
121 BOOST_CHECK_THROW(lexical_cast
<signed char>(v
), bad_lexical_cast
);
125 inline std::ostream
& operator<<(std::ostream
& out
, const std::vector
<long> & v
)
127 std::ostream_iterator
<long> it(out
);
128 std::copy(v
.begin(), v
.end(), it
);
134 void test_empty_vector()
137 do_test_on_empty_input(v
);
138 BOOST_CHECK_THROW(lexical_cast
<char>(v
), bad_lexical_cast
);
139 BOOST_CHECK_THROW(lexical_cast
<unsigned char>(v
), bad_lexical_cast
);
140 BOOST_CHECK_THROW(lexical_cast
<signed char>(v
), bad_lexical_cast
);
145 friend std::ostream
&operator<<(std::ostream
& sout
, my_string
const&/* st*/) {
150 void test_empty_zero_terminated_string()
153 BOOST_CHECK_EQUAL(boost::lexical_cast
<std::string
>(st
), std::string());;
156 unit_test::test_suite
*init_unit_test_suite(int, char *[])
158 unit_test::test_suite
*suite
=
159 BOOST_TEST_SUITE("lexical_cast. Empty input unit test");
160 suite
->add(BOOST_TEST_CASE(&test_empty_iterator_range
));
161 suite
->add(BOOST_TEST_CASE(&test_empty_string
));
162 suite
->add(BOOST_TEST_CASE(&test_empty_user_class
));
163 suite
->add(BOOST_TEST_CASE(&test_empty_vector
));
164 suite
->add(BOOST_TEST_CASE(&test_empty_zero_terminated_string
));