TestMultiFileHierarchicalConfiguration.java

/*
 * 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.commons.configuration;

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

import org.apache.commons.configuration.reloading.FileChangedReloadingStrategy;

/**
 * Unit test for simple MultiConfigurationTest.
 */
public class TestMultiFileHierarchicalConfiguration
    extends TestCase
{
    private static String PATTERN1 = "target/test-classes/testMultiConfiguration_${sys:Id}.xml";

    /**
     * Create the test case
     *
     * @param testName name of the test case
     */
    public TestMultiFileHierarchicalConfiguration( String testName )
    {
        super( testName );
    }

    /**
     * @return the suite of tests being tested
     */
    public static Test suite()
    {
        return new TestSuite( TestMultiFileHierarchicalConfiguration.class );
    }

    /**
     * Rigourous Test :-)
     */
    public void testMultiConfiguration()
    {
        //set up a reloading strategy
        FileChangedReloadingStrategy strategy = new FileChangedReloadingStrategy();
        strategy.setRefreshDelay(10000);

        MultiFileHierarchicalConfiguration config = new MultiFileHierarchicalConfiguration(PATTERN1);
        config.setReloadingStrategy(strategy);

        System.setProperty("Id", "1001");
        assertTrue(config.getInt("rowsPerPage") == 15);

        System.setProperty("Id", "1002");
        assertTrue(config.getInt("rowsPerPage") == 25);

        System.setProperty("Id", "1003");
        assertTrue(config.getInt("rowsPerPage") == 35);
    }
}