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/*************************************************************************
/* 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;
}
}
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