libs/iostreams/test/seekable_filter_test.cpp

   1 // (C) Copyright 2008 CodeRage, LLC (turkanis at coderage dot com)
   2 // (C) Copyright 2004-2007 Jonathan Turkanis
   3 // Distributed under the Boost Software License, Version 1.0. (See accompanying
   4 // file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt.)
   5
   6 // See http://www.boost.org/libs/iostreams for documentation.
   7
   8 #include <vector>
   9 #include <boost/config.hpp>
  10 #include <boost/detail/workaround.hpp>
  11 #include <boost/iostreams/device/array.hpp>
  12 #include <boost/iostreams/device/array.hpp>
  13 #include <boost/iostreams/filtering_stream.hpp>
  14 #include <boost/test/test_tools.hpp>
  15 #include <boost/test/unit_test.hpp>
  16 #include "../example/container_device.hpp"  // We use container_device instead
  17 #include "detail/filters.hpp"               // of make_iterator_range to
  18 #include "detail/temp_file.hpp"             // reduce dependence on Boost.Range
  19 #include "detail/verification.hpp"
  20
  21
  22 using namespace std;
  23 using namespace boost;
  24 using namespace boost::iostreams;
  25 using namespace boost::iostreams::example;
  26 using namespace boost::iostreams::test;
  27 using boost::unit_test::test_suite;
  28
  29
  30 // Code generation bugs cause tests to fail with global optimization.
  31 #if BOOST_WORKAROUND(BOOST_MSVC, < 1300)
  32 # pragma optimize("g", off)
  33 #endif
  34
  35 void seekable_filter_test()
  36 {
  37     {
  38         vector<char> test(data_reps * data_length(), '0');
  39         filtering_stream<seekable> io;
  40         io.push(identity_seekable_filter());
  41         io.push(container_device< vector<char> >(test));
  42         io.exceptions(BOOST_IOS::failbit | BOOST_IOS::badbit);
  43         BOOST_CHECK_MESSAGE(
  44             test_seekable_in_chars(io),
  45             "failed seeking within a file, in chars"
  46         );
  47     }
  48
  49     {
  50         vector<char> test(data_reps * data_length(), '0');
  51         filtering_stream<seekable> io;
  52         io.push(identity_seekable_filter());
  53         io.push(container_device< vector<char> >(test));
  54         io.exceptions(BOOST_IOS::failbit | BOOST_IOS::badbit);
  55         BOOST_CHECK_MESSAGE(
  56             test_seekable_in_chunks(io),
  57             "failed seeking within a file, in chunks"
  58         );
  59     }
  60
  61     {
  62         vector<char> test(data_reps * data_length(), '0');
  63         filtering_stream<seekable> io;
  64         io.push(identity_seekable_multichar_filter());
  65         io.push(container_device< vector<char> >(test));
  66         io.exceptions(BOOST_IOS::failbit | BOOST_IOS::badbit);
  67         BOOST_CHECK_MESSAGE(
  68             test_seekable_in_chars(io),
  69             "failed seeking within a file, in chars"
  70         );
  71     }
  72
  73     {
  74         vector<char> test(data_reps * data_length(), '0');
  75         filtering_stream<seekable> io;
  76         io.push(identity_seekable_multichar_filter());
  77         io.push(container_device< vector<char> >(test));
  78         io.exceptions(BOOST_IOS::failbit | BOOST_IOS::badbit);
  79         BOOST_CHECK_MESSAGE(
  80             test_seekable_in_chunks(io),
  81             "failed seeking within a file, in chunks"
  82         );
  83     }
  84 }
  85
  86 #if BOOST_WORKAROUND(BOOST_MSVC, < 1300)
  87 # pragma optimize("", on)
  88 #endif
  89
  90 test_suite* init_unit_test_suite(int, char* [])
  91 {
  92     test_suite* test = BOOST_TEST_SUITE("seekable filter test");
  93     test->add(BOOST_TEST_CASE(&seekable_filter_test));
  94     return test;
  95 }