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package org.apache.velocity.test;
/*
* 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.
*/
import junit.framework.Test;
import junit.framework.TestSuite;
import org.apache.velocity.VelocityContext;
import org.apache.velocity.app.VelocityEngine;
import org.apache.velocity.context.Context;
import org.apache.velocity.exception.MethodInvocationException;
import org.apache.velocity.runtime.RuntimeConstants;
import org.apache.velocity.test.misc.ExceptionGeneratingDirective;
import org.apache.velocity.test.misc.ExceptionGeneratingEventHandler;
import org.apache.velocity.test.misc.ExceptionGeneratingResourceLoader;
import org.apache.velocity.test.provider.TestProvider;
import java.io.StringWriter;
/**
* Test case for miscellaneous Exception related issues.
*
* @author <a href="mailto:wglass@forio.com">Will Glass-Husain</a>
* @version $Id$
*/
public class ExceptionTestCase extends BaseTestCase implements TemplateTestBase
{
VelocityEngine ve;
/**
* Default constructor.
*/
public ExceptionTestCase(String name)
{
super(name);
}
public static Test suite ()
{
return new TestSuite(ExceptionTestCase.class);
}
public void testReferenceInsertionEventHandlerException()
throws Exception
{
ve = new VelocityEngine();
ve.setProperty(RuntimeConstants.EVENTHANDLER_REFERENCEINSERTION,ExceptionGeneratingEventHandler.class.getName());
ve.init();
assertException(ve);
}
/**
* Note - this is the one case where RuntimeExceptions *are not* passed through
* verbatim.
* @throws Exception
*/
public void testMethodExceptionEventHandlerException()
throws Exception
{
ve = new VelocityEngine();
ve.setProperty(RuntimeConstants.EVENTHANDLER_METHODEXCEPTION,ExceptionGeneratingEventHandler.class.getName());
ve.init();
Context context = new VelocityContext();
context.put ("test",new TestProvider());
assertMethodInvocationException(ve,context,"$test.getThrow()");
assertMethodInvocationException(ve,context,"$test.throw");
}
public void testIncludeEventHandlerException()
throws Exception
{
ve = new VelocityEngine();
ve.setProperty(RuntimeConstants.EVENTHANDLER_INCLUDE,ExceptionGeneratingEventHandler.class.getName());
ve.init();
assertException(ve,"#include('dummy')");
}
public void testResourceLoaderException()
throws Exception
{
ve = new VelocityEngine();
ve.setProperty(RuntimeConstants.RESOURCE_LOADERS,"except");
ve.setProperty("except.resource.loader.class",ExceptionGeneratingResourceLoader.class.getName());
try
{
ve.init(); // tries to get the macro file
ve.getTemplate("test.txt");
fail("Should have thrown RuntimeException");
}
catch (RuntimeException E)
{
// do nothing
}
}
public void testDirectiveException()
throws Exception
{
ve = new VelocityEngine();
ve.setProperty("userdirective",ExceptionGeneratingDirective.class.getName());
ve.init();
assertException(ve,"#Exception() test #end");
}
public void assertException(VelocityEngine ve)
throws Exception
{
Context context = new VelocityContext();
context.put ("test","test");
assertException(ve,context,"this is a $test");
}
public void assertException(VelocityEngine ve, String input)
throws Exception
{
Context context = new VelocityContext();
context.put ("test","test");
assertException(ve,context,input);
}
public void assertException(VelocityEngine ve, Context context, String input)
throws Exception
{
try
{
StringWriter writer = new StringWriter();
ve.evaluate(context,writer,"test",input);
fail("Expected RuntimeException");
}
catch (RuntimeException E)
{
// do nothing
}
}
public void assertMethodInvocationException(VelocityEngine ve, Context context, String input)
throws Exception
{
try
{
StringWriter writer = new StringWriter();
ve.evaluate(context,writer,"test",input);
fail("Expected MethodInvocationException");
}
catch (MethodInvocationException E)
{
// do nothing
}
}
}
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