//============================================================================
// Name        : Request
// Author      : Avi
// Revision    : $Revision: #7 $ 
//
// Copyright 2009-2020 ECMWF.
// This software is licensed under the terms of the Apache Licence version 2.0 
// which can be obtained at http://www.apache.org/licenses/LICENSE-2.0. 
// In applying this licence, ECMWF does not waive the privileges and immunities 
// granted to it by virtue of its status as an intergovernmental organisation 
// nor does it submit to any jurisdiction. 
//
// Description :
//============================================================================
#include <boost/test/unit_test.hpp>
#include "boost/filesystem/operations.hpp"

#include "TestVersioning.hpp"
#include "Serialization.hpp"

using namespace std;
using namespace boost;

BOOST_AUTO_TEST_SUITE( CoreTestSuite )

// This class will create a Class X. This is serialised.
// This class is then reloaded, with different kinds of version changes, to base version 0;
// Note: we simulate different release of class X, by using name spaces
//       This is possible since the name space is not written.
BOOST_AUTO_TEST_CASE( test_versioning )
{
   cout << "ACore:: ...test_versioning\n";
   {
      // write out version 0; This will be reloaded with different version of X
      const version0::X t = version0::X(10);
      ecf::save("version0",t);
   }

   {
      // Version 1 adds a new data member: i.e min_
      version_new_data_member::X t;
      ecf::restore("version0",t);
      BOOST_CHECK_MESSAGE(t == version_new_data_member::X(10,0),"Should be the same");
   }

   {
      // Version 1 change data member name: from hour_ -> hours_:
      // This required no change at all. Since serialisation relies on order.
      version_change_dm_name::X t;
      ecf::restore("version0",t);
      BOOST_CHECK_MESSAGE(t == version_change_dm_name::X(10),"Should be the same");
   }

   {
      // Version 1 change data member type: from int -> string :
      version_change_dm_type::X t;
      ecf::restore("version0",t);
      BOOST_CHECK_MESSAGE(t == version_change_dm_type::X("10"),"Reading integer as string expected '10', but found string " << t.str());
   }

   // remove the generate file
   boost::filesystem::remove("version0");
}

BOOST_AUTO_TEST_SUITE_END()
