001    /*
002     * Licensed to the Apache Software Foundation (ASF) under one or more
003     * contributor license agreements.  See the NOTICE file distributed with
004     * this work for additional information regarding copyright ownership.
005     * The ASF licenses this file to You under the Apache License, Version 2.0
006     * (the "License"); you may not use this file except in compliance with
007     * the License.  You may obtain a copy of the License at
008     * 
009     *      http://www.apache.org/licenses/LICENSE-2.0
010     * 
011     * Unless required by applicable law or agreed to in writing, software
012     * distributed under the License is distributed on an "AS IS" BASIS,
013     * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
014     * See the License for the specific language governing permissions and
015     * limitations under the License.
016     */ 
017    package org.apache.commons.logging;
018    
019    import junit.framework.TestCase;
020    
021    /**
022     * Test cases for situations where getClassLoader or getContextClassLoader
023     * return null. This can happen when using JDK 1.1. It can also happen when
024     * JCL is deployed via the bootclassloader - something that could be done when
025     * using java in embedded systems.
026     */
027    public class NullClassLoaderTestCase extends TestCase {
028    
029        //---------------------- Main ---------------------------------    
030    
031        /**
032         * Main method so this test case can be run direct from the command line.
033         */
034        public static void main(String[] args){
035            String[] testCaseName = { NullClassLoaderTestCase.class.getName() };
036            junit.textui.TestRunner.main(testCaseName);
037        }
038    
039        //---------------------- unit tests ---------------------------------    
040        
041        /**
042         * This tests that when getContextClassLoader returns null, the
043         * LogFactory.getLog(name) method still correctly returns the same
044         * log object when called multiple times with the same name.
045         */
046        public void testSameLogObject() throws Exception {
047            // unfortunately, there just isn't any way to emulate JCL being
048            // accessable via the null classloader in "standard" systems, so
049            // we can't include this test in our standard unit tests.
050        }
051    }