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 */ 017 018 package org.apache.commons.logging.noop; 019 020 import java.io.ByteArrayInputStream; 021 import java.io.ByteArrayOutputStream; 022 import java.io.ObjectInputStream; 023 import java.io.ObjectOutputStream; 024 025 import org.apache.commons.logging.Log; 026 import org.apache.commons.logging.LogFactory; 027 import org.apache.commons.logging.impl.NoOpLog; 028 import org.apache.commons.logging.AbstractLogTest; 029 030 /** 031 * Tests for NoOpLog logging adapter. 032 * <p> 033 * This simply applies the tests defined in AbstractLogTest to this class. 034 */ 035 public class NoOpLogTestCase extends AbstractLogTest 036 { 037 /** 038 * Set up instance variables required by this test case. 039 */ 040 public void setUp() throws Exception { 041 LogFactory.releaseAll(); 042 043 System.setProperty( 044 "org.apache.commons.logging.Log", 045 "org.apache.commons.logging.impl.NoOpLog"); 046 } 047 048 /** 049 * Tear down instance variables required by this test case. 050 */ 051 public void tearDown() { 052 LogFactory.releaseAll(); 053 System.getProperties().remove("org.apache.commons.logging.Log"); 054 } 055 056 /** 057 * Override the abstract method from the parent class so that the 058 * inherited tests can access the right Log object type. 059 */ 060 public Log getLogObject() 061 { 062 return (Log) new NoOpLog(this.getClass().getName()); 063 } 064 065 // Test Serializability of standard instance 066 public void testSerializable() throws Exception { 067 Log log = LogFactory.getLog(this.getClass().getName()); 068 checkLog(log); 069 070 // Serialize and deserialize the instance 071 ByteArrayOutputStream baos = new ByteArrayOutputStream(); 072 ObjectOutputStream oos = new ObjectOutputStream(baos); 073 oos.writeObject(log); 074 oos.close(); 075 ByteArrayInputStream bais = 076 new ByteArrayInputStream(baos.toByteArray()); 077 ObjectInputStream ois = new ObjectInputStream(bais); 078 log = (Log) ois.readObject(); 079 ois.close(); 080 081 checkLog(log); 082 } 083 084 085 // -------------------------------------------------------- Support Methods 086 087 private void checkLog(Log log) { 088 089 assertNotNull("Log exists", log); 090 assertEquals("Log class", 091 "org.apache.commons.logging.impl.NoOpLog", 092 log.getClass().getName()); 093 094 // Can we call level checkers with no exceptions? 095 // Note that *everything* is permanently disabled for NoOpLog 096 assertFalse(log.isTraceEnabled()); 097 assertFalse(log.isDebugEnabled()); 098 assertFalse(log.isInfoEnabled()); 099 assertFalse(log.isWarnEnabled()); 100 assertFalse(log.isErrorEnabled()); 101 assertFalse(log.isFatalEnabled()); 102 } 103 }