/*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You under the Apache License, Version 2.0
* (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.apache.wicket.util.io;
import static org.hamcrest.Matchers.is;
import java.io.IOException;
import java.io.NotSerializableException;
import java.io.Serializable;
import java.util.Map;
import java.util.Set;
import org.apache.wicket.core.util.objects.checker.CheckingObjectOutputStream;
import org.apache.wicket.core.util.objects.checker.ObjectSerializationChecker;
import org.apache.wicket.core.util.objects.checker.AbstractObjectChecker;
import org.apache.wicket.core.util.objects.checker.CheckingObjectOutputStream;
import org.apache.wicket.core.util.objects.checker.IObjectChecker;
import org.apache.wicket.util.value.ValueMap;
import org.hamcrest.Matchers;
import org.junit.Assert;
import org.junit.Test;
/**
* @author Pedro Santos
*/
public class SerializableCheckerTest extends Assert
{
/**
* Test {@link ValueMap} serializability.
*
* @throws IOException
*/
@Test
public void valueMap() throws IOException
{
CheckingObjectOutputStream checker = new CheckingObjectOutputStream(new ByteArrayOutputStream(),
new ObjectSerializationChecker(new NotSerializableException()));
checker.writeObject(new ValueMap());
}
/**
* Asserts that {@link org.apache.wicket.core.util.objects.checker.CheckingObjectOutputStream}
* will check an instance just once, despite it occurs more than once in the object tree
*
* https://issues.apache.org/jira/browse/WICKET-5642
*
* @throws IOException
*/
@Test
public void checkObjectsByIdentity() throws IOException
{
CountingChecker countingChecker = new CountingChecker();
CheckingObjectOutputStream outputStream = new CheckingObjectOutputStream(new ByteArrayOutputStream(), countingChecker);
final IdentityTestType type = new IdentityTestType();
type.member = new SerializableTypeWithMember(type);
outputStream.writeObject(type);
assertThat(countingChecker.getCount(), is(2));
}
private static class CountingChecker extends AbstractObjectChecker
{
private int count = 0;
@Override
public Result check(Object object)
{
count++;
return super.check(object);
}
private int getCount()
{
return count;
}
}
private static class SerializableTypeWithMember extends SerializableType
{
private final IdentityTestType member;
private SerializableTypeWithMember(IdentityTestType member)
{
this.member = member;
}
}
/**
* @throws IOException
*/
@Test
public void nonSerializableTypeDetection() throws IOException
{
CheckingObjectOutputStream checker = new CheckingObjectOutputStream(new ByteArrayOutputStream(),
new ObjectSerializationChecker(new NotSerializableException()));
String exceptionMessage = null;
try
{
checker.writeObject(new TestType2());
}
catch (CheckingObjectOutputStream.ObjectCheckException e)
{
exceptionMessage = e.getMessage();
}
assertTrue(exceptionMessage.contains(NonSerializableType.class.getName()));
}
private static class IdentityTestType implements Serializable
{
private static final long serialVersionUID = 1L;
private SerializableType member;
@Override
public boolean equals(Object obj)
{
return false;
}
}
private static class TestType2 implements Serializable
{
private static final long serialVersionUID = 1L;
ProblematicType problematicType = new ProblematicType();
SerializableType serializableType = new SerializableType();
NonSerializableType nonSerializable = new NonSerializableType();
}
private static class NonSerializableType
{
}
private static class SerializableType implements Serializable
{
private static final long serialVersionUID = 1L;
}
private static class TestException extends RuntimeException
{
private static final long serialVersionUID = 1L;
}
private static class ProblematicType implements Serializable
{
private static final long serialVersionUID = 1L;
@Override
public boolean equals(Object obj)
{
throw new TestException();
}
}
}