/*
* 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.cocoon.stax;
import static org.junit.Assert.*;
import java.io.ByteArrayOutputStream;
import java.io.InputStream;
import org.apache.cocoon.pipeline.NonCachingPipeline;
import org.apache.cocoon.pipeline.Pipeline;
import org.apache.cocoon.pipeline.SetupException;
import org.apache.cocoon.pipeline.component.PipelineComponent;
import org.apache.cocoon.stax.component.XMLSerializer;
import org.apache.cocoon.stax.component.XMLGenerator;
import org.apache.commons.io.IOUtils;
import org.custommonkey.xmlunit.Diff;
import org.custommonkey.xmlunit.XMLUnit;
import org.junit.Test;
/**
* Contains unit tests for testing and presenting the most simple cases for a StAX pipeline.<br>
*
* Communication between a StAX Generator and a StAX Serializer<br>
* Connection of SAX and StAX Components is detected as error
*/
public class StAXPipelineTest {
/**
* Very simple test case loading a simple xml file as input stream, and starts the most simple
* pipeline (Generator -> Serializer) on it. Finally the output is compared to the file used for
* input. This test should present the most basic ideas about a StAX pipeline.
*
* @exception Exception Is thrown if an error occurs loading the files or in the pipeline
* itself.
*/
@Test
public void testProducerConsumer() throws Exception {
InputStream input = StAXPipelineTest.class.getResource("/org/apache/cocoon/stax/simple.xml").openStream();
ByteArrayOutputStream out = new ByteArrayOutputStream();
Pipeline<StAXPipelineComponent> pipe = new NonCachingPipeline<StAXPipelineComponent>();
pipe.addComponent(new XMLGenerator(input));
pipe.addComponent(new XMLSerializer());
pipe.setup(out);
pipe.execute();
String created = out.toString();
String correctOne = IOUtils.toString(StAXPipelineTest.class.getResource("/org/apache/cocoon/stax/simple.xml")
.openStream());
XMLUnit.setIgnoreWhitespace(true);
Diff myDiff = new Diff(correctOne, created);
assertTrue("pieces of XML are not similar: " + myDiff, myDiff.similar());
}
/**
* Demonstrates that connecting a SAX and a StAX component in the same pipeline results in a
* {@link SetupException}.
*/
@Test(expected = SetupException.class)
public void pipelineWithWrongComponents() {
Pipeline<PipelineComponent> pipeline = new NonCachingPipeline<PipelineComponent>();
pipeline.addComponent(new org.apache.cocoon.sax.component.XMLGenerator("<test/>"));
pipeline.addComponent(new XMLSerializer());
pipeline.setup(new ByteArrayOutputStream());
fail("Mixing wrong components which has to result in a SetupException");
}
}