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Java > Open Source Codes > org > apache > commons > logging > logkit > StandardTestCase


1 /*
2  * Copyright 2006 The Apache Software Foundation.
3  *
4  * Licensed under the Apache License, Version 2.0 (the "License");
5  * you may not use this file except in compliance with the License.
6  * You may obtain a copy of the License at
7  *
8  * http://www.apache.org/licenses/LICENSE-2.0
9  *
10  * Unless required by applicable law or agreed to in writing, software
11  * distributed under the License is distributed on an "AS IS" BASIS,
12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13  * See the License for the specific language governing permissions and
14  * limitations under the License.
15  */
16
17 package org.apache.commons.logging.logkit;
18
19
20 import java.io.ByteArrayInputStream JavaDoc;
21 import java.io.ByteArrayOutputStream JavaDoc;
22 import java.io.ObjectInputStream JavaDoc;
23 import java.io.ObjectOutputStream JavaDoc;
24
25 import junit.framework.Test;
26 import junit.framework.TestCase;
27
28 import org.apache.commons.logging.Log;
29 import org.apache.commons.logging.LogFactory;
30 import org.apache.commons.logging.PathableClassLoader;
31 import org.apache.commons.logging.PathableTestSuite;
32 import org.apache.commons.logging.impl.LogKitLogger;
33 import org.apache.commons.logging.impl.NoOpLog;
34
35 import org.apache.commons.logging.AbstractLogTest;
36
37 /**
38  * Basic tests for Avalon LogKit logger adapter.
39  */
40
41 public class StandardTestCase extends AbstractLogTest {
42
43
44     // ----------------------------------------------------- Instance Variables
45
46
47     /**
48      * <p>The {@link LogFactory} implementation we have selected.</p>
49      */
50     protected LogFactory factory = null;
51
52
53     /**
54      * <p>The {@link Log} implementation we have selected.</p>
55      */
56     protected Log log = null;
57
58
59     // ------------------------------------------- JUnit Infrastructure Methods
60
61
62     /**
63      * Return the tests included in this test suite.
64      */
65     public static Test suite() throws Exception JavaDoc {
66         Class JavaDoc thisClass = StandardTestCase.class;
67
68         PathableClassLoader loader = new PathableClassLoader(null);
69         loader.useSystemLoader("junit.");
70         loader.addLogicalLib("testclasses");
71         loader.addLogicalLib("commons-logging");
72         loader.addLogicalLib("logkit");
73
74         Class JavaDoc testClass = loader.loadClass(thisClass.getName());
75         return new PathableTestSuite(testClass, loader);
76     }
77
78     /**
79      * Set up instance variables required by this test case.
80      */
81     public void setUp() throws Exception JavaDoc {
82         LogFactory.releaseAll();
83
84         System.setProperty(
85                 "org.apache.commons.logging.Log",
86                 "org.apache.commons.logging.impl.LogKitLogger");
87
88         factory = LogFactory.getFactory();
89         log = LogFactory.getLog("TestLogger");
90     }
91
92     /**
93      * Tear down instance variables required by this test case.
94      */
95     public void tearDown() {
96         log = null;
97         factory = null;
98         LogFactory.releaseAll();
99     }
100
101     // ----------------------------------------------------------- Test Methods
102
103     /**
104      * Override the abstract method from the parent class so that the
105      * inherited tests can access the right Log object type.
106      */
107     public Log getLogObject()
108     {
109         return new LogKitLogger(this.getClass().getName());
110     }
111
112     // Test pristine LogFactory instance
113 public void testPristineFactory() {
114
115         assertNotNull("LogFactory exists", factory);
116         assertEquals("LogFactory class",
117                      "org.apache.commons.logging.impl.LogFactoryImpl",
118                      factory.getClass().getName());
119
120         String JavaDoc names[] = factory.getAttributeNames();
121         assertNotNull("Names exists", names);
122         assertEquals("Names empty", 0, names.length);
123     }
124
125     // Test pristine Log instance
126 public void testPristineLog() {
127         checkStandard();
128     }
129
130     // Test Serializability of standard instance
131 public void testSerializable() throws Exception JavaDoc {
132         checkStandard();
133
134         // Serialize and deserialize the instance
135 ByteArrayOutputStream JavaDoc baos = new ByteArrayOutputStream JavaDoc();
136         ObjectOutputStream JavaDoc oos = new ObjectOutputStream JavaDoc(baos);
137         oos.writeObject(log);
138         oos.close();
139         ByteArrayInputStream JavaDoc bais =
140             new ByteArrayInputStream JavaDoc(baos.toByteArray());
141         ObjectInputStream JavaDoc ois = new ObjectInputStream JavaDoc(bais);
142         log = (Log) ois.readObject();
143         ois.close();
144
145         checkStandard();
146     }
147
148
149     // -------------------------------------------------------- Support Methods
150
151     // Check the standard log instance
152 protected void checkStandard() {
153
154         assertNotNull("Log exists", log);
155         assertEquals("Log class",
156                      "org.apache.commons.logging.impl.LogKitLogger",
157                      log.getClass().getName());
158
159         // Can we call level checkers with no exceptions?
160 // Note that by default *everything* is enabled for LogKit
161 assertTrue(log.isTraceEnabled());
162         assertTrue(log.isDebugEnabled());
163         assertTrue(log.isInfoEnabled());
164         assertTrue(log.isWarnEnabled());
165         assertTrue(log.isErrorEnabled());
166         assertTrue(log.isFatalEnabled());
167     }
168 }
169
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