ceph/src/boost/libs/serialization/test/test_class_info_load.cpp

   1 /////////1/////////2/////////3/////////4/////////5/////////6/////////7/////////8
   2 // test_class_info_load.cpp: test implementation level trait
   3
   4 // (C) Copyright 2002 Robert Ramey - http://www.rrsd.com .
   5 // Use, modification and distribution is subject to the Boost Software
   6 // License, Version 1.0. (See accompanying file LICENSE_1_0.txt or copy at
   7 // http://www.boost.org/LICENSE_1_0.txt)
   8
   9 // test implementation level "object_class_info"
  10 // should pass compilation and execution
  11
  12 #include <string>
  13 #include <fstream>
  14
  15 #include <boost/archive/tmpdir.hpp>
  16 #include <boost/preprocessor/stringize.hpp>
  17 #include "test_tools.hpp"
  18
  19 #include <boost/static_assert.hpp>
  20 #include <boost/serialization/level.hpp>
  21 #include <boost/serialization/tracking.hpp>
  22 #include <boost/serialization/nvp.hpp>
  23
  24 class A
  25 {
  26     friend class boost::serialization::access;
  27     template<class Archive>
  28     void serialize(Archive & /*ar*/, const unsigned int file_version){
  29         // class that don't save class info always have a version number of 0
  30         BOOST_CHECK(file_version == 0);
  31         BOOST_STATIC_ASSERT(0 == ::boost::serialization::version<A>::value);
  32         ++count;
  33     }
  34 public:
  35     unsigned int count;
  36     A() : count(0) {}
  37 };
  38
  39 BOOST_CLASS_IMPLEMENTATION(A, ::boost::serialization::object_serializable)
  40 BOOST_CLASS_TRACKING(A, ::boost::serialization::track_never)
  41
  42 // second case : serialize WITH class information
  43 class B
  44 {
  45     friend class boost::serialization::access;
  46     template<class Archive>
  47     void serialize(Archive & /*ar*/, const unsigned int file_version){
  48         // verify at execution that the version number corresponds to the saved
  49         // one
  50         BOOST_CHECK(file_version == 2);
  51         ++count;
  52     }
  53 public:
  54     unsigned int count;
  55     B() : count(0) {}
  56 };
  57
  58 BOOST_CLASS_IMPLEMENTATION(B, ::boost::serialization::object_class_info)
  59 BOOST_CLASS_TRACKING(B, ::boost::serialization::track_never)
  60 BOOST_CLASS_VERSION(B, 4)
  61
  62 void in(const char *testfile, A & a, B & b)
  63 {
  64     test_istream is(testfile, TEST_STREAM_FLAGS);
  65     test_iarchive ia(is, TEST_ARCHIVE_FLAGS);
  66     ia >> BOOST_SERIALIZATION_NVP(a);
  67     ia >> BOOST_SERIALIZATION_NVP(a);
  68     BOOST_CHECK(a.count == 2);  // no tracking => redundant loads
  69     ia >> BOOST_SERIALIZATION_NVP(b);
  70     ia >> BOOST_SERIALIZATION_NVP(b);
  71     // note: archive was saved with tracking so that is what determines
  72     // whether tracking is perform on load - regardless of the latest
  73     // tracking setting.
  74     BOOST_CHECK(b.count == 1);
  75 }
  76
  77 int
  78 test_main( int /* argc */, char* /* argv */[] )
  79 {
  80     A a;
  81     B b;
  82     std::string filename;
  83     filename += boost::archive::tmpdir();
  84     filename += '/';
  85     filename += BOOST_PP_STRINGIZE(testfile_);
  86     filename += BOOST_PP_STRINGIZE(BOOST_ARCHIVE_TEST);
  87     in(filename.c_str(), a, b);
  88     return EXIT_SUCCESS;
  89 }
  90
  91 // EOF