/*
    * 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.logging.jdk14;
  
  import java.io.ByteArrayInputStream;
  import java.io.ByteArrayOutputStream;
  import java.io.ObjectInputStream;
  import java.io.ObjectOutputStream;
  
  import org.apache.commons.logging.Log;
  import org.apache.commons.logging.LogFactory;
  import org.apache.commons.logging.PathableClassLoader;
  import org.apache.commons.logging.PathableTestSuite;
  
  import junit.framework.Test;
  import junit.framework.TestCase;
  
  /**
   * <p>TestCase for JDK 1.4 logging when running on a JDK 1.4 system with
   * zero configuration, and with Log4J not present (so JDK 1.4 logging
   * should be automatically configured.</p>
   */
  public class DefaultConfigTestCase extends TestCase {
  
      /**
       * Return the tests included in this test suite.
       */
      public static Test suite() throws Exception {
          final PathableClassLoader loader = new PathableClassLoader(null);
          loader.useExplicitLoader("junit.", Test.class.getClassLoader());
          loader.addLogicalLib("testclasses");
          loader.addLogicalLib("commons-logging");
  
          final Class testClass = loader.loadClass(DefaultConfigTestCase.class.getName());
          return new PathableTestSuite(testClass, loader);
      }
  
      /**
       * <p>The {@link LogFactory} implementation we have selected.</p>
       */
      protected LogFactory factory;
  
      /**
       * <p>The {@link Log} implementation we have selected.</p>
       */
      protected Log log;
  
      /**
       * <p>Construct a new instance of this test case.</p>
       *
       * @param name Name of the test case
       */
      public DefaultConfigTestCase(final String name) {
          super(name);
      }
  
      // Check the log instance
      protected void checkLog() {
  
          assertNotNull("Log exists", log);
          assertEquals("Log class",
                       "org.apache.commons.logging.impl.Jdk14Logger",
                       log.getClass().getName());
  
          // Can we call level checkers with no exceptions?
          log.isDebugEnabled();
          log.isErrorEnabled();
          log.isFatalEnabled();
          log.isInfoEnabled();
          log.isTraceEnabled();
          log.isWarnEnabled();
  
      }
  
      /**
       * Sets up instance variables required by this test case.
       */
      @Override
      public void setUp() throws Exception {
          setUpFactory();
          setUpLog("TestLogger");
      }
  
      // Set up factory instance
     protected void setUpFactory() throws Exception {
         factory = LogFactory.getFactory();
     }
 
     // Set up log instance
     protected void setUpLog(final String name) throws Exception {
         log = LogFactory.getLog(name);
     }
 
     /**
      * Tear down instance variables required by this test case.
      */
     @Override
     public void tearDown() {
         log = null;
         factory = null;
         LogFactory.releaseAll();
     }
 
     // Test pristine LogFactory instance
     public void testPristineFactory() {
         assertNotNull("LogFactory exists", factory);
         assertEquals("LogFactory class",
                      "org.apache.commons.logging.impl.LogFactoryImpl",
                      factory.getClass().getName());
 
         final String[] names = factory.getAttributeNames();
         assertNotNull("Names exists", names);
         assertEquals("Names empty", 0, names.length);
     }
 
     // Test pristine Log instance
     public void testPristineLog() {
         checkLog();
     }
 
     // Test Serializability of Log instance
     public void testSerializable() throws Exception {
 
         // Serialize and deserialize the instance
         final ByteArrayOutputStream baos = new ByteArrayOutputStream();
         final ObjectOutputStream oos = new ObjectOutputStream(baos);
         oos.writeObject(log);
         oos.close();
         final ByteArrayInputStream bais =
             new ByteArrayInputStream(baos.toByteArray());
         final ObjectInputStream ois = new ObjectInputStream(bais);
         log = (Log) ois.readObject();
         ois.close();
 
         // Check the characteristics of the resulting object
         checkLog();
 
     }
 
 }