1 // (C) Copyright 2008 CodeRage, LLC (turkanis at coderage dot com)
2 // (C) Copyright 2004-2007 Jonathan Turkanis
3 // Distributed under the Boost Software License, Version 1.0. (See accompanying
4 // file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt.)
5
6 // See http://www.boost.org/libs/iostreams for documentation.
7
8 #include <string>
9 #include <boost/iostreams/filter/test.hpp>
10 #include <boost/test/test_tools.hpp>
11 #include <boost/test/unit_test.hpp>
12 #include "detail/filters.hpp"
13
14 using namespace boost::iostreams;
15 using namespace boost::iostreams::test;
16 using boost::unit_test::test_suite;
17
18 const std::string lower =
19 "in addition to providing an abstract framework the "
20 "library provides a number of concrete filters, sources "
21 "and sinks which serve as example applications of the "
22 "library but are also useful in their own right. these "
23 "include components for accessing memory-mapped files, "
24 "for file access via operating system file descriptors, "
25 "for code conversion, for text filtering with regular "
26 "expressions, for line-ending conversion and for "
27 "compression and decompression in the zlib, gzip and "
28 "bzip2 formats.";
29
30 const std::string upper =
31 "IN ADDITION TO PROVIDING AN ABSTRACT FRAMEWORK THE "
32 "LIBRARY PROVIDES A NUMBER OF CONCRETE FILTERS, SOURCES "
33 "AND SINKS WHICH SERVE AS EXAMPLE APPLICATIONS OF THE "
34 "LIBRARY BUT ARE ALSO USEFUL IN THEIR OWN RIGHT. THESE "
35 "INCLUDE COMPONENTS FOR ACCESSING MEMORY-MAPPED FILES, "
36 "FOR FILE ACCESS VIA OPERATING SYSTEM FILE DESCRIPTORS, "
37 "FOR CODE CONVERSION, FOR TEXT FILTERING WITH REGULAR "
38 "EXPRESSIONS, FOR LINE-ENDING CONVERSION AND FOR "
39 "COMPRESSION AND DECOMPRESSION IN THE ZLIB, GZIP AND "
40 "BZIP2 FORMATS.";
41
42 struct toupper_dual_use_filter : public dual_use_filter {
43 template<typename Source>
gettoupper_dual_use_filter44 int get(Source& s)
45 {
46 int c = boost::iostreams::get(s);
47 return c != EOF && c != WOULD_BLOCK ?
48 std::toupper((unsigned char) c) :
49 c;
50 }
51 template<typename Sink>
puttoupper_dual_use_filter52 bool put(Sink& s, char c)
53 {
54 return boost::iostreams::put(
55 s, (char) std::toupper((unsigned char) c)
56 );
57 }
58 };
59
60 struct tolower_dual_use_filter : public dual_use_filter {
61 template<typename Source>
gettolower_dual_use_filter62 int get(Source& s)
63 {
64 int c = boost::iostreams::get(s);
65 return c != EOF && c != WOULD_BLOCK ?
66 std::tolower((unsigned char) c) :
67 c;
68 }
69 template<typename Sink>
puttolower_dual_use_filter70 bool put(Sink& s, char c)
71 {
72 return boost::iostreams::put(
73 s, (char) std::tolower((unsigned char) c)
74 );
75 }
76 };
77
filter_test()78 void filter_test()
79 {
80 BOOST_CHECK(test_input_filter(toupper_filter(), lower, upper));
81 BOOST_CHECK(test_input_filter(toupper_multichar_filter(), lower, upper));
82 BOOST_CHECK(test_input_filter(toupper_dual_use_filter(), lower, upper));
83 BOOST_CHECK(test_output_filter(tolower_filter(), upper, lower));
84 BOOST_CHECK(test_output_filter(tolower_multichar_filter(), upper, lower));
85 BOOST_CHECK(test_output_filter(tolower_dual_use_filter(), upper, lower));
86 BOOST_CHECK(test_filter_pair(tolower_filter(), toupper_filter(), upper));
87 BOOST_CHECK(
88 test_filter_pair( tolower_multichar_filter(),
89 toupper_multichar_filter(), upper )
90 );
91 }
92
init_unit_test_suite(int,char * [])93 test_suite* init_unit_test_suite(int, char* [])
94 {
95 test_suite* test = BOOST_TEST_SUITE("filter test");
96 test->add(BOOST_TEST_CASE(&filter_test));
97 return test;
98 }
99