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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