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 "detail/filters.hpp" // Must come before operations.hpp for VC6. |
9 | #include <boost/iostreams/categories.hpp> |
10 | #include <boost/iostreams/constants.hpp> |
11 | #include <boost/iostreams/device/null.hpp> |
12 | #include <boost/iostreams/operations.hpp> |
13 | #include <boost/test/test_tools.hpp> |
14 | #include <boost/test/unit_test.hpp> |
15 | |
16 | using namespace std; |
17 | using namespace boost::iostreams; |
18 | using namespace boost::iostreams::test; |
19 | using boost::unit_test::test_suite; |
20 | |
21 | struct optimally_buffered_filter { |
22 | typedef char char_type; |
23 | struct category |
24 | : input_filter_tag, |
25 | optimally_buffered_tag |
26 | { }; |
27 | std::streamsize optimal_buffer_size() const |
28 | { return default_filter_buffer_size + 1; } |
29 | }; |
30 | |
31 | void buffer_size_test() |
32 | { |
33 | // Test device buffer sizes. |
34 | |
35 | BOOST_CHECK_MESSAGE( |
36 | optimal_buffer_size(null_source()) == default_device_buffer_size, |
37 | "wrong buffer size for sourcer" |
38 | ); |
39 | BOOST_CHECK_MESSAGE( |
40 | optimal_buffer_size(null_sink()) == default_device_buffer_size, |
41 | "wrong buffer size for sink" |
42 | ); |
43 | |
44 | // Test filter buffer sizes. |
45 | |
46 | BOOST_CHECK_MESSAGE( |
47 | optimal_buffer_size(toupper_filter()) == default_filter_buffer_size, |
48 | "wrong buffer size for input filter" |
49 | ); |
50 | BOOST_CHECK_MESSAGE( |
51 | optimal_buffer_size(tolower_filter()) == default_filter_buffer_size, |
52 | "wrong buffer size for output filter" |
53 | ); |
54 | BOOST_CHECK_MESSAGE( |
55 | optimal_buffer_size(toupper_multichar_filter()) |
56 | == |
57 | default_filter_buffer_size, |
58 | "wrong buffer size for multi-character input filter" |
59 | ); |
60 | BOOST_CHECK_MESSAGE( |
61 | optimal_buffer_size(tolower_multichar_filter()) |
62 | == |
63 | default_filter_buffer_size, |
64 | "wrong buffer size for multi-character output filter" |
65 | ); |
66 | |
67 | // Test custom buffer size. |
68 | |
69 | BOOST_CHECK_MESSAGE( |
70 | optimal_buffer_size(optimally_buffered_filter()) |
71 | == |
72 | optimally_buffered_filter().optimal_buffer_size(), |
73 | "wrong buffer size for multi-character output filter" |
74 | ); |
75 | } |
76 | |
77 | test_suite* init_unit_test_suite(int, char* []) |
78 | { |
79 | test_suite* test = BOOST_TEST_SUITE("buffer_size test" ); |
80 | test->add(BOOST_TEST_CASE(&buffer_size_test)); |
81 | return test; |
82 | } |
83 | |