Subversion Repositories scarts

/*************************************************************************

/* ObjectOutputStreamTest.java -- Tests ObjectOutputStream class

/*

/* Copyright (c) 1998 by Free Software Foundation, Inc.

/*

/* This program is free software; you can redistribute it and/or modify

/* it under the terms of the GNU General Public License as published

/* by the Free Software Foundation, version 2. (see COPYING)

/*

/* This program is distributed in the hope that it will be useful, but

/* WITHOUT ANY WARRANTY; without even the implied warranty of

/* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the

/* GNU General Public License for more details.

/*

/* You should have received a copy of the GNU General Public License

/* along with this program; if not, write to the Free Software Foundation

/* Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301 USA

/*************************************************************************/

import java.io.ByteArrayOutputStream;

import java.io.Externalizable;

import java.io.FileInputStream;

import java.io.FileOutputStream;

import java.io.IOException;

import java.io.ObjectInput;

import java.io.ObjectInputStream;

import java.io.ObjectOutput;

import java.io.ObjectOutputStream;

import java.io.ObjectStreamException;

import java.io.Serializable;

public class ObjectOutputStreamTest extends Test

{

  public static void testSerial( Object obj, String filename )

  {

    if( writeMode )

    {

      try

      {

        ObjectOutputStream oos =

          new ObjectOutputStream( new FileOutputStream( filename ) );

        oos.writeObject( obj );

        oos.close();

      }

      catch( ObjectStreamException e )

      {}

      catch( IOException ioe )

      {

        ioe.printStackTrace();

      }

    }

    else

    {

      ByteArrayOutputStream bytes = new ByteArrayOutputStream();

      try

      {

        ObjectOutputStream oos = new ObjectOutputStream( bytes );

        oos.writeObject( obj );

        oos.close();

      }

      catch( ObjectStreamException e )

      {}

      catch( IOException ioe )

      {

        fail();

        return;

      }

      byte[] jcl_bytes = bytes.toByteArray();

      int data;

      FileInputStream jdk_file;

      try

      {

        jdk_file = new FileInputStream( filename );

        for( int i=0; i < jcl_bytes.length; i++ )

        {

          data = jdk_file.read();

          if( data == -1 )

          {

            fail();

            return;

          }

          if( (byte)data != jcl_bytes[i] )

          {

            fail();

            return;

          }

        }

        if( jdk_file.read() != -1 )

        {

          fail();

          return;

        }

      }

      catch( IOException e )

      {

        error();

        return;

      }

      pass();

    }

  }

  public static void main( String[] args )

  {

    writeMode = (args.length != 0);

    testSerial( new OOSNotSerial(), "notserial.data" );

    System.out.println( "Non-serializable class" );

    testSerial( new OOSBadField( 1, 2, new OOSNotSerial() ),

                "notserialfield.data" );

    System.out.println( "Object with non-serializable field" );

    testSerial( new OOSCallDefault( 1, 3.14, "test" ),

                "calldefault.data" );

    System.out.println( "Object calling defaultWriteObject()" );

    testSerial( new OOSNoCallDefault( 17, "no\ndefault", false ),

                "nocalldefault.data" );

    System.out.println( "Object not calling defaultWriteObject()" );

    testSerial( new OOSExtern( -1, "", true ), "external.data" );

    System.out.println( "Externalizable class" );

    testSerial( new HairyGraph(), "graph.data" );

    System.out.println( "Graph of objects with circular references" );

  }

  public static boolean writeMode;

}

class OOSNotSerial {}

class OOSBadField implements Serializable

{

  int x;

  int y;

  OOSNotSerial o;

  OOSBadField( int X, int Y, OOSNotSerial O )

  {

    x = X;

    y = Y;

    o = O;

  }

}