TEST_ObjectOutputStream_Instanceof.java

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package gnu.testlet.Junittests.io;

import java.io.*;

import gnu.testlet.*;
import java.io.*;


public class TEST_ObjectOutputStream_Instanceof extends Mv_Assert {
  private SAMPLE_ObjectStream_B root, b;

  private Object object;

  private byte[] output;

  private ObjectInputStream ois;
  private ByteArrayInputStream bais;
  private ByteArrayOutputStream baos;
  private ObjectOutputStream oos;


  public TEST_ObjectOutputStream_Instanceof() {
    super();


    root=SAMPLE_SerialObject.getRootObject();

    openOutputStream();

    try {
      oos.writeObject(root);
      oos.flush();

    }catch(IOException ioe) {
      closeOutputStream();
      fail(ioe.toString());
    }

    output = baos.toByteArray();

    closeOutputStream();




    openInputStream(output);

    try {
      object = ois.readObject();
    }catch(Exception e) {
      fail(e.toString());
    }
    closeInputStream();
  }

  public void setUp() {
    b=(SAMPLE_ObjectStream_B)object;
  }



  public void tearDown() {
  }



  private void closeOutputStream() {
    try {
      baos.close();
    } catch(IOException ioe) {
      fail(ioe.toString());
    }

  }

  private void openOutputStream() {
    try {
      baos = new ByteArrayOutputStream();
      oos = new ObjectOutputStream(baos);
    }catch(IOException ioe) {
      ioe.printStackTrace();
      fail("unexpected io exception occurred while setting up");
    }
  }





  public void closeInputStream() {
    try {
      bais.close();
    }catch(IOException ioe) {
      fail("IO Exception while closing input stream");
    }

  }

  private void openInputStream(byte [] data) {
    try {
      bais=new ByteArrayInputStream(data);
      ois=new ObjectInputStream(bais);
    }catch(IOException ioe) {
      fail("openStream> "+ioe.toString());
      return;
    }
  }


  protected void runTest() {
    assertTrue("read object not an instance of original",
            object instanceof SAMPLE_ObjectStream_B);
    assertTrue("read object not an instance of SAMPLE_ObjectStream_B",
                b.getLeft() instanceof SAMPLE_ObjectStream_B);
    assertTrue("read object not an instance of SAMPLE_ObjectStream_C",
                b.getRight() instanceof SAMPLE_ObjectStream_C);
    assertTrue("read object not an instance of SAMPLE_ObjectStream_A",
                b.getLeft().getLeft() instanceof SAMPLE_ObjectStream_A);
    assertTrue("read object not an instance of SAMPLE_ObjectStream_C",
                b.getLeft().getRight() instanceof SAMPLE_ObjectStream_C);
  }

}