/*
* 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 java.io.IOException;
import java.io.NotSerializableException;
import java.io.Serializable;
import org.apache.log4j.Level;
import org.apache.log4j.LogManager;
import org.apache.log4j.Logger;
import org.apache.wicket.core.util.io.SerializableChecker;
import org.apache.wicket.core.util.objects.checker.CheckingObjectOutputStream;
import org.apache.wicket.util.Log4jEventHistory;
import org.apache.wicket.util.value.ValueMap;
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
{
SerializableChecker checker = new SerializableChecker(new ByteArrayOutputStream(), new NotSerializableException());
checker.writeObject(new ValueMap());
}
/**
* Asserting an meaningful message get logged on console when serializable checker is testing
* problematic {@link Object#equals(Object)} method implementations.
*
* @see <a href="https://issues.apache.org/jira/browse/WICKET-3354">WICKET-3354</a>
* @throws IOException
*/
@Test
public void runtimeExceptionTolerance() throws IOException
{
Logger logger = LogManager.getLogger(CheckingObjectOutputStream.class);
logger.setLevel(Level.WARN);
Log4jEventHistory logHistory = new Log4jEventHistory();
logger.addAppender(logHistory);
SerializableChecker serializableChecker = new SerializableChecker(new ByteArrayOutputStream(),
new NotSerializableException());
try
{
serializableChecker.writeObject(new TestType1());
String expectedMessage = "Wasn't possible to check the object 'class org.apache.wicket.util.io.SerializableCheckerTest$ProblematicType' possible due an problematic implementation of equals method";
assertTrue(logHistory.contains(Level.WARN, expectedMessage));
}
catch (TestException notMeaningfulException)
{
fail("Should have just logged on console, the checker is after another problem");
}
}
/**
* @throws IOException
*/
@Test
public void nonSerializableTypeDetection() throws IOException
{
SerializableChecker serializableChecker = new SerializableChecker(new ByteArrayOutputStream(),
new NotSerializableException());
String exceptionMessage = null;
try
{
serializableChecker.writeObject(new TestType2());
}
catch (CheckingObjectOutputStream.ObjectCheckException e)
{
exceptionMessage = e.getMessage();
}
assertTrue(exceptionMessage.contains(NonSerializableType.class.getName()));
}
private static class TestType1 implements Serializable
{
private static final long serialVersionUID = 1L;
ProblematicType problematicType = new ProblematicType();
}
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();
}
}
}