/*
* $Id$
*
* Copyright 2006, The jCoderZ.org Project. All rights reserved.
*
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* modification, are permitted provided that the following conditions are
* met:
*
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* notice, this list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above
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* disclaimer in the documentation and/or other materials
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package org.jcoderz.commons.util;
import java.io.ByteArrayInputStream;
import java.io.ByteArrayOutputStream;
import java.io.IOException;
import java.io.ObjectInputStream;
import java.io.ObjectOutputStream;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.HashSet;
import java.util.Iterator;
import java.util.List;
import java.util.NoSuchElementException;
import java.util.Set;
import junit.framework.TestCase;
/**
* Tests the Serializable Iterator.
* @author Albrecht Messner
*/
public class SerializableIteratorTest
extends TestCase
{
/**
* Tests serialization of the SerializableIterator.
* @throws Exception if the testcase fails
*/
public void testSerialization ()
throws Exception
{
final String[] testData
= new String[] {"foo", "bar", "bingo", "bongo", "hallo"};
final SerializableIterator si = SerializableIterator.fromArray(testData);
final byte[] serialized = serialize(si);
final SerializableIterator si2
= (SerializableIterator) deserialize(serialized);
int count = 0;
while (si2.hasNext())
{
si2.next();
count++;
}
assertEquals("wrong # of items in iterator", testData.length, count);
}
public void testContentsAndBoundaries ()
throws Exception
{
final String[] testData = new String[] {"a", "b", "c"};
final SerializableIterator si = SerializableIterator.fromArray(testData);
final List testDataAsList = new ArrayList(Arrays.asList(testData));
for (int i = 0; i < testData.length; i++)
{
final String s = (String) si.next();
assertTrue("Result should be in test data list",
testDataAsList.contains(s));
testDataAsList.remove(s);
}
try
{
si.next();
fail("Should be at end of iterator");
}
catch (NoSuchElementException x)
{
// expected
}
}
public void testWithCollection ()
{
final Set hs = new HashSet();
hs.add("gandalf");
hs.add("frodo");
hs.add("bilbo");
hs.add("aragorn");
final Iterator it = SerializableIterator.fromCollection(hs);
while (it.hasNext())
{
final String s = (String) it.next();
assertTrue("String must be in test data", hs.contains(s));
}
}
private byte[] serialize (Object o)
throws IOException
{
final ByteArrayOutputStream byteOutStream = new ByteArrayOutputStream();
final ObjectOutputStream objOutStream
= new ObjectOutputStream(byteOutStream);
objOutStream.writeObject(o);
objOutStream.flush();
objOutStream.close();
return byteOutStream.toByteArray();
}
private Object deserialize (byte [] b)
throws IOException, ClassNotFoundException
{
final ByteArrayInputStream byteInStream = new ByteArrayInputStream(b);
final ObjectInputStream objInStream = new ObjectInputStream(byteInStream);
return objInStream.readObject();
}
}