Compat1.java

// Tags: JDK1.2
// Uses: SerBase

/* SerTest.java -- Test class that "overrides" private field 'a'.

   Copyright (c) 2003 by Free Software Foundation, Inc.
   Written by Guilhem Lavaux (guilhem@kaffe.org).
   Based on a test by Pat Tullmann <pat_kaffe@tullmann.org>.

   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., 59 Temple Place - Suite 330, Boston, MA  02111-1307 USA */
package gnu.testlet.java.io.ObjectInputOutput;
import gnu.testlet.Testlet;
import gnu.testlet.TestHarness;
import java.io.ObjectInputStream;
import java.io.ObjectOutputStream;
import java.io.FileOutputStream;
import java.io.FileInputStream;
import java.math.BigInteger;
import java.io.IOException;
import java.io.File;

public class Compat1 implements Testlet
{
  static String SERIAL_REFERENCE = "serial.bin";
  static String SERIAL_SCRATCH_FILENAME = "Compat1.tmp";
  static int SERIAL_REF_ID = 0;
  
  BigInteger getBigInt(int id)
  {
    return 
      new BigInteger("1010101010101101010101010102102102013103913019301210" + id);
  }

  void generate(String fname, int id) throws IOException
  { 
    FileOutputStream of = new FileOutputStream (fname);
    ObjectOutputStream oos = new ObjectOutputStream (of);
  
    oos.writeObject (getBigInt (id));
    oos.flush();
  }

  BigInteger readSerial(String fname) throws Exception
  {
    FileInputStream ifs = new FileInputStream (fname);
    ObjectInputStream ios = new ObjectInputStream (ifs);
    
    return (BigInteger)ios.readObject();
  }

  public void test(TestHarness t)
  {
    int rand_id = 0;

    t.checkPoint ("Compatibility test for BigInteger");

    try
      {
	generate (SERIAL_SCRATCH_FILENAME, rand_id);
	t.check (true);
	t.check(readSerial (SERIAL_SCRATCH_FILENAME), getBigInt (rand_id));
      }
    catch (Exception e)
      {
	t.check (false,"fail 1");
	t.debug (e);
      }
    
    try
      {
	ObjectInputStream ois = new ObjectInputStream (
      getClass().getResourceAsStream("/Compat1"+SERIAL_REFERENCE));

	t.check(ois.readObject(), getBigInt (SERIAL_REF_ID), "check 2.");
      }
    catch (Exception e)
      {
	t.check (false, "fail 2");
  e.printStackTrace();
	t.debug (e);
      }

    new File(SERIAL_SCRATCH_FILENAME).delete();
  }

  static public void main(String args[]) throws IOException
  {
    new Compat1().generate (SERIAL_REFERENCE, SERIAL_REF_ID);
  }
}