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// Tags: JDK1.2

// Copyright (C) 2004 David Gilbert <david.gilbert@object-refinery.com>

// This file is part of Mauve.

// Mauve 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; either version 2, or (at your option)
// any later version.

// Mauve 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 Mauve; see the file COPYING.  If not, write to
// the Free Software Foundation, 59 Temple Place - Suite 330,
// Boston, MA 02111-1307, USA.

package gnu.testlet.java.awt.font.TextAttribute;

import gnu.testlet.TestHarness;
import gnu.testlet.Testlet;

import java.awt.font.TextAttribute;
import java.io.ByteArrayInputStream;
import java.io.ByteArrayOutputStream;
import java.io.ObjectInput;
import java.io.ObjectInputStream;
import java.io.ObjectOutput;
import java.io.ObjectOutputStream;

/**
 * Some checks for serialization of the {@link TextAttribute} class.
 */
public class serialization implements Testlet 
{

  /**
   * Runs the test using the specified harness.
   * 
   * @param harness  the test harness (<code>null</code> not permitted).
   */
  public void test(TestHarness harness)      
  {
    checkSerial(TextAttribute.BACKGROUND, harness);
    checkSerial(TextAttribute.BIDI_EMBEDDING, harness);
    checkSerial(TextAttribute.CHAR_REPLACEMENT, harness);
    checkSerial(TextAttribute.FAMILY, harness);
    checkSerial(TextAttribute.FONT, harness);
    checkSerial(TextAttribute.FOREGROUND, harness);
    checkSerial(TextAttribute.INPUT_METHOD_HIGHLIGHT, harness);
    checkSerial(TextAttribute.JUSTIFICATION, harness);
    checkSerial(TextAttribute.NUMERIC_SHAPING, harness);
    checkSerial(TextAttribute.POSTURE, harness);
    checkSerial(TextAttribute.RUN_DIRECTION, harness);
    checkSerial(TextAttribute.SIZE, harness);
    checkSerial(TextAttribute.STRIKETHROUGH, harness);
    checkSerial(TextAttribute.WEIGHT, harness);
    checkSerial(TextAttribute.WIDTH, harness);
  }
  
  private void checkSerial(TextAttribute ta1, TestHarness harness) 
  {
    TextAttribute ta2 = null;

    try {
      ByteArrayOutputStream buffer = new ByteArrayOutputStream();
      ObjectOutput out = new ObjectOutputStream(buffer);
      out.writeObject(ta1);
      out.close();

      ObjectInput in = new ObjectInputStream(
        new ByteArrayInputStream(buffer.toByteArray())
      );
      ta2 = (TextAttribute) in.readObject();
      in.close();
    }
    catch (Exception e) {
      harness.debug(e);
    }
    harness.check(ta1 == ta2);  // the readResolve() method ensures that only
                                // one object can represent each attribute
  }

}