[29] | 1 | // (C) Copyright Jonathan Turkanis 2005. |
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| 2 | // Distributed under the Boost Software License, Version 1.0. (See accompanying |
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| 3 | // file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt.) |
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| 4 | |
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| 5 | // See http://www.boost.org/libs/iostreams for documentation. |
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| 6 | |
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| 7 | // Todo: add tests for direct devices. |
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| 8 | |
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| 9 | #include <algorithm> // equal. |
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| 10 | #include <cctype> |
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| 11 | #include <iterator> // back_inserter. |
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| 12 | #include <vector> |
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| 13 | #include <boost/iostreams/copy.hpp> |
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| 14 | #include <boost/iostreams/device/file.hpp> |
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| 15 | #include <boost/iostreams/device/null.hpp> |
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| 16 | #include <boost/iostreams/filtering_stream.hpp> |
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| 17 | #include <boost/iostreams/restrict.hpp> |
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| 18 | #include <boost/test/test_tools.hpp> |
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| 19 | #include <boost/test/unit_test.hpp> |
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| 20 | #include "detail/constants.hpp" |
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| 21 | #include "detail/filters.hpp" |
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| 22 | #include "detail/sequence.hpp" |
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| 23 | #include "detail/temp_file.hpp" |
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| 24 | #include "detail/verification.hpp" |
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| 25 | |
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| 26 | using namespace std; |
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| 27 | using namespace boost; |
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| 28 | using namespace boost::iostreams; |
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| 29 | using namespace boost::iostreams::test; |
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| 30 | using boost::unit_test::test_suite; |
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| 31 | |
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| 32 | const char pad_char = '\n'; |
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| 33 | const int small_padding = 50; |
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| 34 | const int large_padding = default_device_buffer_size + 50; |
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| 35 | |
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| 36 | void write_padding(std::ofstream& out, int len) |
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| 37 | { |
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| 38 | for (int z = 0; z < len; ++z) |
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| 39 | out.put(pad_char); |
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| 40 | } |
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| 41 | |
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| 42 | struct restricted_test_file : public temp_file { |
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| 43 | restricted_test_file(int padding, bool half_open = false) |
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| 44 | { |
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| 45 | BOOST_IOS::openmode mode = |
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| 46 | BOOST_IOS::out | BOOST_IOS::binary; |
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| 47 | ::std::ofstream f(name().c_str(), mode); |
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| 48 | write_padding(f, padding); |
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| 49 | const char* buf = narrow_data(); |
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| 50 | for (int z = 0; z < data_reps; ++z) |
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| 51 | f.write(buf, data_length()); |
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| 52 | if (!half_open) |
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| 53 | write_padding(f, padding); |
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| 54 | } |
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| 55 | }; |
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| 56 | |
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| 57 | struct restricted_test_sequence : public std::vector<char> { |
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| 58 | restricted_test_sequence(int padding, bool half_open = false) |
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| 59 | { |
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| 60 | for (int z = 0; z < padding; ++z) |
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| 61 | push_back(pad_char); |
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| 62 | const char* buf = narrow_data(); |
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| 63 | for (int w = 0; w < data_reps; ++w) |
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| 64 | insert(end(), buf, buf + data_length()); |
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| 65 | if (!half_open) |
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| 66 | for (int x = 0; x < padding; ++x) |
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| 67 | push_back(pad_char); |
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| 68 | } |
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| 69 | }; |
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| 70 | |
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| 71 | struct restricted_uppercase_file : public temp_file { |
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| 72 | restricted_uppercase_file(int padding, bool half_open = false) |
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| 73 | { |
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| 74 | BOOST_IOS::openmode mode = |
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| 75 | BOOST_IOS::out | BOOST_IOS::binary; |
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| 76 | ::std::ofstream f(name().c_str(), mode); |
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| 77 | write_padding(f, padding); |
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| 78 | const char* buf = narrow_data(); |
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| 79 | for (int z = 0; z < data_reps; ++z) |
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| 80 | for (int w = 0; w < data_length(); ++w) |
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| 81 | f.put((char) std::toupper(buf[w])); |
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| 82 | if (!half_open) |
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| 83 | write_padding(f, padding); |
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| 84 | } |
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| 85 | }; |
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| 86 | |
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| 87 | struct restricted_lowercase_file : public temp_file { |
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| 88 | restricted_lowercase_file(int padding, bool half_open = false) |
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| 89 | { |
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| 90 | BOOST_IOS::openmode mode = |
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| 91 | BOOST_IOS::out | BOOST_IOS::binary; |
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| 92 | ::std::ofstream f(name().c_str(), mode); |
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| 93 | write_padding(f, padding); |
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| 94 | const char* buf = narrow_data(); |
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| 95 | for (int z = 0; z < data_reps; ++z) |
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| 96 | for (int w = 0; w < data_length(); ++w) |
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| 97 | f.put((char) std::tolower(buf[w])); |
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| 98 | if (!half_open) |
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| 99 | write_padding(f, padding); |
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| 100 | } |
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| 101 | }; |
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| 102 | |
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| 103 | // Can't have a restricted view of a non-seekble output filter. |
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| 104 | struct tolower_seekable_filter : public seekable_filter { |
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| 105 | typedef char char_type; |
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| 106 | struct category |
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| 107 | : output_seekable, |
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| 108 | filter_tag |
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| 109 | { }; |
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| 110 | template<typename Sink> |
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| 111 | bool put(Sink& s, char c) |
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| 112 | { return boost::iostreams::put(s, (char) std::tolower(c)); } |
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| 113 | |
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| 114 | template<typename Sink> |
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| 115 | std::streampos seek(Sink& s, stream_offset off, BOOST_IOS::seekdir way) |
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| 116 | { return boost::iostreams::seek(s, off, way); } |
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| 117 | }; |
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| 118 | |
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| 119 | void read_device() |
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| 120 | { |
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| 121 | { |
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| 122 | restricted_test_file src1(small_padding); |
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| 123 | test_file src2; |
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| 124 | stream_offset off = small_padding, |
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| 125 | len = data_reps * data_length(); |
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| 126 | filtering_istream first( restrict( file_source(src1.name(), in_mode), |
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| 127 | off, len ) ); |
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| 128 | ifstream second(src2.name().c_str(), in_mode); |
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| 129 | BOOST_CHECK_MESSAGE( |
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| 130 | compare_streams_in_chunks(first, second), |
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| 131 | "failed reading from restriction<Device> with small padding" |
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| 132 | ); |
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| 133 | } |
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| 134 | |
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| 135 | { |
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| 136 | restricted_test_file src1(large_padding); |
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| 137 | test_file src2; |
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| 138 | stream_offset off = large_padding, |
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| 139 | len = data_reps * data_length(); |
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| 140 | filtering_istream first( restrict( file_source(src1.name(), in_mode), |
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| 141 | off, len ) ); |
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| 142 | ifstream second(src2.name().c_str(), in_mode); |
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| 143 | BOOST_CHECK_MESSAGE( |
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| 144 | compare_streams_in_chunks(first, second), |
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| 145 | "failed reading from restriction<Device> with large padding" |
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| 146 | ); |
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| 147 | } |
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| 148 | |
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| 149 | { |
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| 150 | restricted_test_file src1(small_padding, true); |
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| 151 | test_file src2; |
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| 152 | stream_offset off = small_padding; |
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| 153 | filtering_istream first(restrict(file_source(src1.name(), in_mode), off)); |
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| 154 | ifstream second(src2.name().c_str(), in_mode); |
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| 155 | BOOST_CHECK_MESSAGE( |
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| 156 | compare_streams_in_chunks(first, second), |
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| 157 | "failed reading from half-open restriction<Device> " |
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| 158 | "with small padding" |
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| 159 | ); |
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| 160 | } |
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| 161 | |
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| 162 | { |
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| 163 | restricted_test_file src1(large_padding, true); |
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| 164 | test_file src2; |
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| 165 | stream_offset off = large_padding; |
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| 166 | filtering_istream first(restrict(file_source(src1.name(), in_mode), off)); |
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| 167 | ifstream second(src2.name().c_str(), in_mode); |
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| 168 | BOOST_CHECK_MESSAGE( |
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| 169 | compare_streams_in_chunks(first, second), |
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| 170 | "failed reading from half-open restriction<Device> " |
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| 171 | "with large padding" |
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| 172 | ); |
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| 173 | } |
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| 174 | } |
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| 175 | |
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| 176 | void read_direct_device() |
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| 177 | { |
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| 178 | { |
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| 179 | test_sequence<char> first; |
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| 180 | restricted_test_sequence src(small_padding); |
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| 181 | array_source array_src(&src[0], &src[0] + src.size()); |
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| 182 | stream_offset off = small_padding, |
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| 183 | len = data_reps * data_length(); |
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| 184 | filtering_istream second(restrict(array_src, off, len)); |
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| 185 | BOOST_CHECK_MESSAGE( |
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| 186 | compare_container_and_stream(first, second), |
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| 187 | "failed reading from restriction<Direct>" |
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| 188 | ); |
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| 189 | } |
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| 190 | |
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| 191 | { |
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| 192 | test_sequence<char> first; |
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| 193 | restricted_test_sequence src(small_padding, true); |
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| 194 | array_source array_src(&src[0], &src[0] + src.size()); |
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| 195 | stream_offset off = small_padding; |
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| 196 | filtering_istream second(restrict(array_src, off)); |
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| 197 | BOOST_CHECK_MESSAGE( |
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| 198 | compare_container_and_stream(first, second), |
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| 199 | "failed reading from half-open restriction<Direct>" |
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| 200 | ); |
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| 201 | } |
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| 202 | } |
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| 203 | |
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| 204 | void read_filter() |
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| 205 | { |
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| 206 | { |
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| 207 | restricted_test_file src1(small_padding); |
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| 208 | uppercase_file src2; |
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| 209 | stream_offset off = small_padding, |
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| 210 | len = data_reps * data_length(); |
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| 211 | filtering_istream first; |
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| 212 | first.push(restrict(toupper_filter(), off, len)); |
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| 213 | first.push(file_source(src1.name(), in_mode)); |
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| 214 | ifstream second(src2.name().c_str(), in_mode); |
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| 215 | BOOST_CHECK_MESSAGE( |
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| 216 | compare_streams_in_chunks(first, second), |
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| 217 | "failed reading from restriction<Filter> with small padding" |
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| 218 | ); |
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| 219 | } |
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| 220 | |
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| 221 | { |
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| 222 | restricted_test_file src1(large_padding); |
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| 223 | uppercase_file src2; |
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| 224 | stream_offset off = large_padding, |
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| 225 | len = data_reps * data_length(); |
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| 226 | filtering_istream first; |
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| 227 | first.push(restrict(toupper_filter(), off, len)); |
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| 228 | first.push(file_source(src1.name(), in_mode)); |
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| 229 | ifstream second(src2.name().c_str(), in_mode); |
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| 230 | BOOST_CHECK_MESSAGE( |
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| 231 | compare_streams_in_chunks(first, second), |
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| 232 | "failed reading from restriction<Filter> with large padding" |
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| 233 | ); |
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| 234 | } |
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| 235 | |
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| 236 | { |
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| 237 | restricted_test_file src1(small_padding, true); |
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| 238 | uppercase_file src2; |
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| 239 | stream_offset off = small_padding; |
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| 240 | filtering_istream first; |
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| 241 | first.push(restrict(toupper_filter(), off)); |
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| 242 | first.push(file_source(src1.name(), in_mode)); |
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| 243 | ifstream second(src2.name().c_str(), in_mode); |
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| 244 | BOOST_CHECK_MESSAGE( |
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| 245 | compare_streams_in_chunks(first, second), |
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| 246 | "failed reading from half-open restriction<Filter> " |
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| 247 | "with small padding" |
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| 248 | ); |
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| 249 | } |
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| 250 | |
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| 251 | { |
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| 252 | restricted_test_file src1(large_padding, true); |
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| 253 | uppercase_file src2; |
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| 254 | stream_offset off = large_padding; |
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| 255 | filtering_istream first; |
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| 256 | first.push(restrict(toupper_filter(), off)); |
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| 257 | first.push(file_source(src1.name(), in_mode)); |
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| 258 | ifstream second(src2.name().c_str(), in_mode); |
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| 259 | BOOST_CHECK_MESSAGE( |
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| 260 | compare_streams_in_chunks(first, second), |
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| 261 | "failed reading from half-open restriction<Filter> " |
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| 262 | "with large padding" |
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| 263 | ); |
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| 264 | } |
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| 265 | } |
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| 266 | |
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| 267 | void write_device() |
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| 268 | { |
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| 269 | { |
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| 270 | restricted_uppercase_file dest1(small_padding); |
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| 271 | restricted_test_file dest2(small_padding); |
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| 272 | stream_offset off = small_padding, |
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| 273 | len = data_reps * data_length(); |
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| 274 | filtering_ostream out( restrict( file(dest1.name(), BOOST_IOS::binary), |
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| 275 | off, len ) ); |
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| 276 | write_data_in_chunks(out); |
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| 277 | out.reset(); |
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| 278 | ifstream first(dest1.name().c_str(), in_mode); |
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| 279 | ifstream second(dest2.name().c_str(), in_mode); |
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| 280 | BOOST_CHECK_MESSAGE( |
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| 281 | compare_streams_in_chunks(first, second), |
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| 282 | "failed writing to restriction<Device> with small padding" |
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| 283 | ); |
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| 284 | } |
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| 285 | |
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| 286 | { |
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| 287 | restricted_uppercase_file dest1(large_padding); |
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| 288 | restricted_test_file dest2(large_padding); |
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| 289 | stream_offset off = large_padding, |
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| 290 | len = data_reps * data_length(); |
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| 291 | filtering_ostream out( restrict( file(dest1.name(), BOOST_IOS::binary), |
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| 292 | off, len ) ); |
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| 293 | write_data_in_chunks(out); |
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| 294 | out.reset(); |
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| 295 | ifstream first(dest1.name().c_str(), in_mode); |
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| 296 | ifstream second(dest2.name().c_str(), in_mode); |
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| 297 | BOOST_CHECK_MESSAGE( |
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| 298 | compare_streams_in_chunks(first, second), |
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| 299 | "failed writing to restriction<Device> with large padding" |
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| 300 | ); |
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| 301 | } |
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| 302 | |
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| 303 | { |
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| 304 | restricted_uppercase_file dest1(small_padding, true); |
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| 305 | restricted_test_file dest2(small_padding, true); |
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| 306 | stream_offset off = small_padding; |
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| 307 | filtering_ostream out(restrict(file(dest1.name(), BOOST_IOS::binary), off)); |
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| 308 | write_data_in_chunks(out); |
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| 309 | out.reset(); |
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| 310 | ifstream first(dest1.name().c_str(), in_mode); |
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| 311 | ifstream second(dest2.name().c_str(), in_mode); |
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| 312 | BOOST_CHECK_MESSAGE( |
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| 313 | compare_streams_in_chunks(first, second), |
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| 314 | "failed writing to half-open restriction<Device> " |
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| 315 | "with small padding" |
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| 316 | ); |
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| 317 | } |
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| 318 | |
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| 319 | { |
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| 320 | restricted_uppercase_file dest1(large_padding, true); |
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| 321 | restricted_test_file dest2(large_padding, true); |
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| 322 | stream_offset off = large_padding; |
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| 323 | filtering_ostream out(restrict(file(dest1.name(), BOOST_IOS::binary), off)); |
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| 324 | write_data_in_chunks(out); |
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| 325 | out.reset(); |
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| 326 | ifstream first(dest1.name().c_str(), in_mode); |
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| 327 | ifstream second(dest2.name().c_str(), in_mode); |
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| 328 | BOOST_CHECK_MESSAGE( |
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| 329 | compare_streams_in_chunks(first, second), |
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| 330 | "failed writing to half-open restriction<Device> " |
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| 331 | "with large padding" |
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| 332 | ); |
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| 333 | } |
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| 334 | } |
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| 335 | |
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| 336 | void write_direct_device() |
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| 337 | { |
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| 338 | { |
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| 339 | vector<char> dest1( data_reps * data_length() + |
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| 340 | 2 * small_padding, |
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| 341 | '\n' ); |
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| 342 | restricted_test_sequence dest2(small_padding); |
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| 343 | stream_offset off = small_padding, |
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| 344 | len = data_reps * data_length(); |
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| 345 | array_sink array(&dest1[0], &dest1[0] + dest1.size()); |
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| 346 | filtering_ostream out(restrict(array, off, len)); |
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| 347 | write_data_in_chunks(out); |
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| 348 | out.reset(); |
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| 349 | BOOST_CHECK_MESSAGE( |
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| 350 | std::equal(dest1.begin(), dest1.end(), dest2.begin()), |
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| 351 | "failed writing to restriction<Direct>" |
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| 352 | ); |
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| 353 | } |
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| 354 | |
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| 355 | { |
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| 356 | vector<char> dest1( data_reps * data_length() + small_padding, |
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| 357 | '\n' ); |
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| 358 | restricted_test_sequence dest2(small_padding, true); |
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| 359 | stream_offset off = small_padding; |
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| 360 | array_sink array(&dest1[0], &dest1[0] + dest1.size()); |
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| 361 | filtering_ostream out(restrict(array, off)); |
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| 362 | write_data_in_chunks(out); |
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| 363 | out.reset(); |
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| 364 | BOOST_CHECK_MESSAGE( |
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| 365 | std::equal(dest1.begin(), dest1.end(), dest2.begin()), |
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| 366 | "failed writing to half-open restriction<Direct>" |
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| 367 | ); |
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| 368 | } |
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| 369 | } |
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| 370 | |
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| 371 | void write_filter() |
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| 372 | { |
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| 373 | { |
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| 374 | restricted_test_file dest1(small_padding); |
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| 375 | restricted_lowercase_file dest2(small_padding); |
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| 376 | stream_offset off = small_padding, |
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| 377 | len = data_reps * data_length(); |
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| 378 | filtering_ostream out; |
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| 379 | out.push(restrict(tolower_seekable_filter(), off, len)); |
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| 380 | out.push(file(dest1.name(), BOOST_IOS::binary)); |
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| 381 | write_data_in_chunks(out); |
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| 382 | out.reset(); |
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| 383 | ifstream first(dest1.name().c_str(), in_mode); |
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| 384 | ifstream second(dest2.name().c_str(), in_mode); |
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| 385 | BOOST_CHECK_MESSAGE( |
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| 386 | compare_streams_in_chunks(first, second), |
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| 387 | "failed writing to restriction<Filter> with small padding" |
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| 388 | ); |
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| 389 | } |
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| 390 | |
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| 391 | { |
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| 392 | restricted_test_file dest1(large_padding); |
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| 393 | restricted_lowercase_file dest2(large_padding); |
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| 394 | stream_offset off = large_padding, |
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| 395 | len = data_reps * data_length(); |
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| 396 | filtering_ostream out; |
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| 397 | out.push(restrict(tolower_seekable_filter(), off, len)); |
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| 398 | out.push(file(dest1.name(), BOOST_IOS::binary)); |
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| 399 | write_data_in_chunks(out); |
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| 400 | out.reset(); |
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| 401 | ifstream first(dest1.name().c_str(), in_mode); |
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| 402 | ifstream second(dest2.name().c_str(), in_mode); |
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| 403 | BOOST_CHECK_MESSAGE( |
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| 404 | compare_streams_in_chunks(first, second), |
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| 405 | "failed writing to restriction<Filter> with large padding" |
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| 406 | ); |
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| 407 | } |
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| 408 | |
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| 409 | { |
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| 410 | restricted_test_file dest1(small_padding, true); |
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| 411 | restricted_lowercase_file dest2(small_padding, true); |
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| 412 | stream_offset off = small_padding; |
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| 413 | filtering_ostream out; |
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| 414 | out.push(restrict(tolower_seekable_filter(), off)); |
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| 415 | out.push(file(dest1.name(), BOOST_IOS::binary)); |
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| 416 | write_data_in_chunks(out); |
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| 417 | out.reset(); |
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| 418 | ifstream first(dest1.name().c_str(), in_mode); |
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| 419 | ifstream second(dest2.name().c_str(), in_mode); |
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| 420 | BOOST_CHECK_MESSAGE( |
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| 421 | compare_streams_in_chunks(first, second), |
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| 422 | "failed writing to restriction<Filter> with small padding" |
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| 423 | ); |
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| 424 | } |
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| 425 | |
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| 426 | { |
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| 427 | restricted_test_file dest1(large_padding, true); |
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| 428 | restricted_lowercase_file dest2(large_padding, true); |
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| 429 | stream_offset off = large_padding; |
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| 430 | filtering_ostream out; |
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| 431 | out.push(restrict(tolower_seekable_filter(), off)); |
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| 432 | out.push(file(dest1.name(), BOOST_IOS::binary)); |
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| 433 | write_data_in_chunks(out); |
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| 434 | out.reset(); |
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| 435 | ifstream first(dest1.name().c_str(), in_mode); |
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| 436 | ifstream second(dest2.name().c_str(), in_mode); |
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| 437 | BOOST_CHECK_MESSAGE( |
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| 438 | compare_streams_in_chunks(first, second), |
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| 439 | "failed writing to restriction<Filter> with large padding" |
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| 440 | ); |
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| 441 | } |
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| 442 | } |
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| 443 | |
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| 444 | void seek_device() |
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| 445 | { |
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| 446 | { |
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| 447 | restricted_test_file src(large_padding); |
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| 448 | stream_offset off = large_padding, |
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| 449 | len = data_reps * data_length(); |
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| 450 | filtering_stream<seekable> io( restrict( file(src.name(), BOOST_IOS::binary), |
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| 451 | off, len ) ); |
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| 452 | BOOST_CHECK_MESSAGE( |
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| 453 | test_seekable_in_chunks(io), |
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| 454 | "failed seeking within restriction<Device>" |
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| 455 | ); |
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| 456 | } |
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| 457 | |
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| 458 | { |
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| 459 | restricted_test_file src(large_padding, true); |
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| 460 | stream_offset off = large_padding; |
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| 461 | filtering_stream<seekable> io(restrict(file(src.name(), BOOST_IOS::binary), off)); |
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| 462 | BOOST_CHECK_MESSAGE( |
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| 463 | test_seekable_in_chunks(io), |
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| 464 | "failed seeking within half-open restriction<Device>" |
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| 465 | ); |
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| 466 | } |
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| 467 | } |
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| 468 | |
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| 469 | void seek_direct_device() |
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| 470 | { |
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| 471 | { |
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| 472 | vector<char> src(data_reps * data_length() + 2 * small_padding, '\n'); |
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| 473 | stream_offset off = small_padding, |
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| 474 | len = data_reps * data_length(); |
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| 475 | array ar(&src[0], &src[0] + src.size()); |
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| 476 | filtering_stream<seekable> io(restrict(ar, off, len)); |
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| 477 | BOOST_CHECK_MESSAGE( |
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| 478 | test_seekable_in_chars(io), |
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| 479 | "failed seeking within restriction<Direct> with small padding" |
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| 480 | ); |
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| 481 | } |
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| 482 | |
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| 483 | { |
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| 484 | vector<char> src(data_reps * data_length() + small_padding, '\n'); |
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| 485 | stream_offset off = small_padding; |
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| 486 | array ar(&src[0], &src[0] + src.size()); |
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| 487 | filtering_stream<seekable> io(restrict(ar, off)); |
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| 488 | BOOST_CHECK_MESSAGE( |
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| 489 | test_seekable_in_chars(io), |
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| 490 | "failed seeking within half-open restriction<Direct> " |
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| 491 | "with small padding" |
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| 492 | ); |
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| 493 | } |
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| 494 | } |
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| 495 | |
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| 496 | void seek_filter() |
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| 497 | { |
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| 498 | { |
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| 499 | restricted_test_file src(small_padding); |
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| 500 | stream_offset off = large_padding, |
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| 501 | len = data_reps * data_length(); |
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| 502 | filtering_stream<seekable> io; |
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| 503 | io.push(restrict(identity_seekable_filter(), off, len)); |
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| 504 | io.push(file(src.name(), BOOST_IOS::binary)); |
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| 505 | BOOST_CHECK_MESSAGE( |
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| 506 | test_seekable_in_chars(io), |
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| 507 | "failed seeking within restriction<Device>" |
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| 508 | ); |
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| 509 | } |
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| 510 | |
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| 511 | { |
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| 512 | restricted_test_file src(small_padding, true); |
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| 513 | stream_offset off = large_padding; |
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| 514 | filtering_stream<seekable> io; |
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| 515 | io.push(restrict(identity_seekable_filter(), off)); |
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| 516 | io.push(file(src.name(), BOOST_IOS::binary)); |
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| 517 | BOOST_CHECK_MESSAGE( |
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| 518 | test_seekable_in_chars(io), |
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| 519 | "failed seeking within half-open restriction<Device>" |
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| 520 | ); |
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| 521 | } |
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| 522 | } |
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| 523 | |
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| 524 | test_suite* init_unit_test_suite(int, char* []) |
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| 525 | { |
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| 526 | test_suite* test = BOOST_TEST_SUITE("restrict test"); |
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| 527 | test->add(BOOST_TEST_CASE(&read_device)); |
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| 528 | test->add(BOOST_TEST_CASE(&read_direct_device)); |
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| 529 | test->add(BOOST_TEST_CASE(&read_filter)); |
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| 530 | test->add(BOOST_TEST_CASE(&write_device)); |
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| 531 | test->add(BOOST_TEST_CASE(&write_direct_device)); |
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| 532 | test->add(BOOST_TEST_CASE(&write_filter)); |
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| 533 | test->add(BOOST_TEST_CASE(&seek_device)); |
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| 534 | test->add(BOOST_TEST_CASE(&seek_direct_device)); |
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| 535 | return test; |
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| 536 | } |
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