src/test/org/apache/velocity/test/issues/Velocity285TestCase.java

package org.apache.velocity.test.issues;

/*
 * 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 java.io.BufferedWriter;
import java.io.FileOutputStream;
import java.io.OutputStreamWriter;
import java.io.Writer;

import junit.framework.Test;
import junit.framework.TestSuite;

import org.apache.velocity.Template;
import org.apache.velocity.VelocityContext;
import org.apache.velocity.app.Velocity;
import org.apache.velocity.runtime.RuntimeSingleton;
import org.apache.velocity.test.BaseTestCase;

/**
 * Test Case for <a href="http://issues.apache.org/jira/browse/VELOCITY-285">Velocity Issue 285</a>.
 */
public class Velocity285TestCase
        extends BaseTestCase
{
    /**
     * Comparison file extension.
     */
    private static final String CMP_FILE_EXT = "cmp";

    /**
     * Comparison file extension.
     */
    private static final String RESULT_FILE_EXT = "res";

    /**
     * Results relative to the build directory.
     */
    private static final String RESULTS_DIR = TEST_RESULT_DIR + "/issues/velocity-285";

    /**
     * Template Directory
     */
    private static final String TEMPLATE_DIR = TEST_COMPARE_DIR + "/issues/velocity-285/templates";

    /**
     * Results relative to the build directory.
     */
    private static final String COMPARE_DIR = TEST_COMPARE_DIR + "/issues/velocity-285/compare";


    public Velocity285TestCase(final String name)
    	throws Exception
    {
        super(name);
    }

    public static Test suite()
    {
        return new TestSuite(Velocity285TestCase.class);
    }

    public void setUp()
            throws Exception
    {

        assureResultsDirectoryExists(RESULTS_DIR);

        Velocity.addProperty(
                Velocity.FILE_RESOURCE_LOADER_PATH, TEMPLATE_DIR);

        Velocity.init();
    }

    public void testVelocity285()
            throws Exception
    {
        Template t = executeTest("velocity285.vm");
    }

    protected Template executeTest(final String templateName)
    	throws Exception
    {
        Template template = RuntimeSingleton.getTemplate(templateName);

        FileOutputStream fos =
                new FileOutputStream (
                        getFileName(RESULTS_DIR, templateName, RESULT_FILE_EXT));

        Writer writer = new BufferedWriter(new OutputStreamWriter(fos));

        VelocityContext context = new VelocityContext();

        template.merge(context, writer);
        writer.flush();
        writer.close();

        if (!isMatch(RESULTS_DIR, COMPARE_DIR, templateName,
                        RESULT_FILE_EXT, CMP_FILE_EXT))
        {
            fail("Output incorrect for Template: " + templateName);
        }

        return template;
    }
}