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7c673cae FG |
1 | /* |
2 | * Copyright Andrey Semashev 2013. | |
3 | * Distributed under the Boost Software License, Version 1.0. | |
4 | * (See accompanying file LICENSE_1_0.txt or copy at | |
5 | * http://www.boost.org/LICENSE_1_0.txt) | |
6 | */ | |
7 | /*! | |
8 | * \file string_ref_test_io.cpp | |
9 | * \author Andrey Semashev | |
10 | * \date 26.05.2013 | |
11 | * | |
12 | * \brief This header contains tests for stream operations of \c basic_string_ref. | |
13 | */ | |
14 | ||
7c673cae FG |
15 | #include <boost/utility/string_view.hpp> |
16 | ||
17 | #include <iomanip> | |
18 | #include <sstream> | |
19 | #include <algorithm> | |
20 | #include <iterator> | |
21 | #include <string> | |
22 | ||
23 | #include <boost/config.hpp> | |
11fdf7f2 TL |
24 | #include <boost/core/lightweight_test.hpp> |
25 | ||
7c673cae | 26 | /* Current implementations seem to be missing codecvt facets to convert chars to char16_t and char32_t even though the types are available. |
7c673cae | 27 | */ |
7c673cae FG |
28 | |
29 | static const char* test_strings[] = | |
30 | { | |
31 | "begin", | |
32 | "abcd", | |
33 | "end" | |
34 | }; | |
35 | ||
36 | //! The context with test data for particular character type | |
37 | template< typename CharT > | |
38 | struct context | |
39 | { | |
40 | typedef CharT char_type; | |
41 | typedef std::basic_string< char_type > string_type; | |
42 | typedef std::basic_ostringstream< char_type > ostream_type; | |
43 | ||
44 | string_type begin, abcd, end; | |
45 | ||
46 | context() | |
47 | { | |
48 | boost::string_view str = test_strings[0]; | |
49 | std::copy(str.begin(), str.end(), std::back_inserter(begin)); | |
50 | ||
51 | str = test_strings[1]; | |
52 | std::copy(str.begin(), str.end(), std::back_inserter(abcd)); | |
53 | ||
54 | str = test_strings[2]; | |
55 | std::copy(str.begin(), str.end(), std::back_inserter(end)); | |
56 | } | |
57 | }; | |
58 | ||
59 | // Test regular output | |
11fdf7f2 TL |
60 | template<class CharT> |
61 | void test_string_view_output() | |
7c673cae FG |
62 | { |
63 | typedef CharT char_type; | |
64 | typedef std::basic_ostringstream< char_type > ostream_type; | |
65 | typedef boost::basic_string_view< char_type > string_view_type; | |
66 | ||
67 | context< char_type > ctx; | |
68 | ||
69 | ostream_type strm; | |
70 | strm << string_view_type(ctx.abcd); | |
11fdf7f2 | 71 | BOOST_TEST(strm.str() == ctx.abcd); |
7c673cae FG |
72 | } |
73 | ||
74 | // Test support for padding | |
11fdf7f2 TL |
75 | template<class CharT> |
76 | void test_padding() | |
7c673cae FG |
77 | { |
78 | typedef CharT char_type; | |
79 | typedef std::basic_ostringstream< char_type > ostream_type; | |
80 | typedef boost::basic_string_view< char_type > string_view_type; | |
81 | ||
82 | context< char_type > ctx; | |
83 | ||
84 | // Test for padding | |
85 | { | |
86 | ostream_type strm_ref; | |
87 | strm_ref << ctx.begin << std::setw(8) << string_view_type(ctx.abcd) << ctx.end; | |
88 | ||
89 | ostream_type strm_correct; | |
90 | strm_correct << ctx.begin << std::setw(8) << ctx.abcd << ctx.end; | |
91 | ||
11fdf7f2 | 92 | BOOST_TEST(strm_ref.str() == strm_correct.str()); |
7c673cae FG |
93 | } |
94 | ||
95 | // Test for long padding | |
96 | { | |
97 | ostream_type strm_ref; | |
98 | strm_ref << ctx.begin << std::setw(100) << string_view_type(ctx.abcd) << ctx.end; | |
99 | ||
100 | ostream_type strm_correct; | |
101 | strm_correct << ctx.begin << std::setw(100) << ctx.abcd << ctx.end; | |
102 | ||
11fdf7f2 | 103 | BOOST_TEST(strm_ref.str() == strm_correct.str()); |
7c673cae FG |
104 | } |
105 | ||
106 | // Test that short width does not truncate the string | |
107 | { | |
108 | ostream_type strm_ref; | |
109 | strm_ref << ctx.begin << std::setw(1) << string_view_type(ctx.abcd) << ctx.end; | |
110 | ||
111 | ostream_type strm_correct; | |
112 | strm_correct << ctx.begin << std::setw(1) << ctx.abcd << ctx.end; | |
113 | ||
11fdf7f2 | 114 | BOOST_TEST(strm_ref.str() == strm_correct.str()); |
7c673cae FG |
115 | } |
116 | } | |
117 | ||
118 | // Test support for padding fill | |
11fdf7f2 TL |
119 | template<class CharT> |
120 | void test_padding_fill() | |
7c673cae FG |
121 | { |
122 | typedef CharT char_type; | |
123 | typedef std::basic_ostringstream< char_type > ostream_type; | |
124 | typedef boost::basic_string_view< char_type > string_view_type; | |
125 | ||
126 | context< char_type > ctx; | |
127 | ||
128 | ostream_type strm_ref; | |
129 | strm_ref << ctx.begin << std::setfill(static_cast< char_type >('x')) << std::setw(8) << string_view_type(ctx.abcd) << ctx.end; | |
130 | ||
131 | ostream_type strm_correct; | |
132 | strm_correct << ctx.begin << std::setfill(static_cast< char_type >('x')) << std::setw(8) << ctx.abcd << ctx.end; | |
133 | ||
11fdf7f2 | 134 | BOOST_TEST(strm_ref.str() == strm_correct.str()); |
7c673cae FG |
135 | } |
136 | ||
137 | // Test support for alignment | |
11fdf7f2 TL |
138 | template<class CharT> |
139 | void test_alignment() | |
7c673cae FG |
140 | { |
141 | typedef CharT char_type; | |
142 | typedef std::basic_ostringstream< char_type > ostream_type; | |
143 | typedef boost::basic_string_view< char_type > string_view_type; | |
144 | ||
145 | context< char_type > ctx; | |
146 | ||
147 | // Left alignment | |
148 | { | |
149 | ostream_type strm_ref; | |
150 | strm_ref << ctx.begin << std::left << std::setw(8) << string_view_type(ctx.abcd) << ctx.end; | |
151 | ||
152 | ostream_type strm_correct; | |
153 | strm_correct << ctx.begin << std::left << std::setw(8) << ctx.abcd << ctx.end; | |
154 | ||
11fdf7f2 | 155 | BOOST_TEST(strm_ref.str() == strm_correct.str()); |
7c673cae FG |
156 | } |
157 | ||
158 | // Right alignment | |
159 | { | |
160 | ostream_type strm_ref; | |
161 | strm_ref << ctx.begin << std::right << std::setw(8) << string_view_type(ctx.abcd) << ctx.end; | |
162 | ||
163 | ostream_type strm_correct; | |
164 | strm_correct << ctx.begin << std::right << std::setw(8) << ctx.abcd << ctx.end; | |
165 | ||
11fdf7f2 | 166 | BOOST_TEST(strm_ref.str() == strm_correct.str()); |
7c673cae FG |
167 | } |
168 | } | |
11fdf7f2 TL |
169 | |
170 | template<class CharT> | |
171 | void test() | |
172 | { | |
173 | test_string_view_output<CharT>(); | |
174 | test_padding<CharT>(); | |
175 | test_padding_fill<CharT>(); | |
176 | test_alignment<CharT>(); | |
177 | } | |
178 | ||
179 | int main() | |
180 | { | |
181 | test<char>(); | |
182 | test<wchar_t>(); | |
183 | return boost::report_errors(); | |
184 | } |