/* * Copyright 2001-2004 The Apache Software Foundation. *  * Licensed 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.logging.log4j;import java.io.ByteArrayInputStream;import java.io.ByteArrayOutputStream;import java.io.ObjectInputStream;import java.io.ObjectOutputStream;import junit.framework.Test;import junit.framework.TestCase;import junit.framework.TestSuite;import org.apache.commons.logging.Log;import org.apache.commons.logging.LogFactory;/** * <p>TestCase for Log4J logging when running on a system with * zero configuration, and with Log4J present (so Log4J logging * should be automatically configured).</p> * * @author Craig R. McClanahan * @version $Revision: 1.7 $ $Date: 2004/02/28 21:46:46 $ */public class DefaultConfigTestCase extends TestCase {    // ----------------------------------------------------------- Constructors    /**     * <p>Construct a new instance of this test case.</p>     *     * @param name Name of the test case     */    public DefaultConfigTestCase(String name) {        super(name);    }    // ----------------------------------------------------- Instance Variables    /**     * <p>The {@link LogFactory} implementation we have selected.</p>     */    protected LogFactory factory = null;    /**     * <p>The {@link Log} implementation we have selected.</p>     */    protected Log log = null;    // ------------------------------------------- JUnit Infrastructure Methods    /**     * Set up instance variables required by this test case.     */    public void setUp() throws Exception {        setUpFactory();        setUpLog("TestLogger");    }    /**     * Return the tests included in this test suite.     */    public static Test suite() {        return (new TestSuite(DefaultConfigTestCase.class));    }    /**     * Tear down instance variables required by this test case.     */    public void tearDown() {        log = null;        factory = null;        LogFactory.releaseAll();    }    // ----------------------------------------------------------- Test Methods    // Test pristine Log instance    public void testPristineLog() {        checkLog();    }    // Test pristine LogFactory instance    public void testPristineFactory() {        assertNotNull("LogFactory exists", factory);        assertEquals("LogFactory class",                     "org.apache.commons.logging.impl.LogFactoryImpl",                     factory.getClass().getName());        String names[] = factory.getAttributeNames();        assertNotNull("Names exists", names);        assertEquals("Names empty", 0, names.length);    }    // Test Serializability of Log instance    public void testSerializable() throws Exception {        // Serialize and deserialize the instance        ByteArrayOutputStream baos = new ByteArrayOutputStream();        ObjectOutputStream oos = new ObjectOutputStream(baos);        oos.writeObject(log);        oos.close();        ByteArrayInputStream bais =            new ByteArrayInputStream(baos.toByteArray());        ObjectInputStream ois = new ObjectInputStream(bais);        log = (Log) ois.readObject();        ois.close();        // Check the characteristics of the resulting object        checkLog();    }    // -------------------------------------------------------- Support Methods    // Check the log instance    protected void checkLog() {        assertNotNull("Log exists", log);        assertEquals("Log class",                     "org.apache.commons.logging.impl.Log4JLogger",                     log.getClass().getName());        // Can we call level checkers with no exceptions?        log.isDebugEnabled();        log.isErrorEnabled();        log.isFatalEnabled();        log.isInfoEnabled();        log.isTraceEnabled();        log.isWarnEnabled();    }    // Set up factory instance    protected void setUpFactory() throws Exception {        factory = LogFactory.getFactory();    }    // Set up log instance    protected void setUpLog(String name) throws Exception {        log = LogFactory.getLog(name);    }}