1 /***************************************************************************************
2 * Copyright (c) Jonas Bonér, Alexandre Vasseur. All rights reserved. *
3 * http://aspectwerkz.codehaus.org *
4 * ---------------------------------------------------------------------------------- *
5 * The software in this package is published under the terms of the LGPL license *
6 * a copy of which has been included with this distribution in the license.txt file. *
7 **************************************************************************************/
8 package org.codehaus.aspectwerkz;
9
10 import junit.framework.TestCase;
11 import org.codehaus.aspectwerkz.exception.WrappedRuntimeException;
12 import org.codehaus.aspectwerkz.hook.impl.WeavingClassLoader;
13
14 import java.io.File;
15 import java.io.IOException;
16 import java.lang.reflect.Constructor;
17 import java.lang.reflect.Method;
18 import java.net.URL;
19 import java.util.ArrayList;
20 import java.util.StringTokenizer;
21
22 /***
23 * Transparently runs TestCase with an embedded online mode Write a JUnit test case and extends WeaverTestCase.
24 *
25 * @author <a href="mailto:alex@gnilux.com">Alexandre Vasseur </a>
26 */
27 public class WeavedTestCase extends TestCase {
28 /***
29 * the test runner that runs the test thru reflection in a weaving ClassLoader
30 */
31 private static WeaverTestRunner s_runner = new WeaverTestRunner();
32
33 public WeavedTestCase() {
34 super();
35 }
36
37 public WeavedTestCase(String name) {
38 super(name);
39 }
40
41 /***
42 * Overrides JUnit runBare() to run thru the weaverTestRunner This allow WeaverTestCase to be regular TestCase
43 *
44 * @throws java.lang.Throwable
45 */
46 public void runBare() throws Throwable {
47 s_runner.runTest(this.getClass().getName(), getName());
48 }
49
50 /***
51 * Callback the regulare JUnit runBare()
52 *
53 * @throws java.lang.Throwable
54 */
55 public void runBareAfterWeaving() throws Throwable {
56 super.runBare();
57 }
58
59 /***
60 * Allow to run WeaverTestCase thru a weaving ClassLoader
61 */
62 public static class WeaverTestRunner {
63 /***
64 * Weaving classloader
65 */
66 private WeavingClassLoader cl;
67
68 /***
69 * Build weavin classloader with system class path and ext. classloader as parent
70 */
71 public WeaverTestRunner() {
72 try {
73 String path = System.getProperty("java.class.path");
74 ArrayList paths = new ArrayList();
75 StringTokenizer st = new StringTokenizer(path, File.pathSeparator);
76 while (st.hasMoreTokens()) {
77 String token = st.nextToken();
78 paths.add((new File(token)).getCanonicalFile().toURL());
79 }
80 cl = new WeavingClassLoader((URL[]) paths.toArray(new URL[] {}), ClassLoader.getSystemClassLoader()
81 .getParent());
82 } catch (IOException e) {
83 throw new WrappedRuntimeException(e);
84 }
85 }
86
87 /***
88 * Runs a single test (testXX) Takes care of not using the weaving class loader is online mode or
89 * weavingClassLoader.main() is already used (might fail under JRockit MAPI)
90 *
91 * @param testClassName test class
92 * @param testMethodName test method
93 * @throws java.lang.Throwable
94 */
95 public void runTest(String testClassName, String testMethodName) throws Throwable {
96
97 if ((cl.getClass().getClassLoader() == null)
98 || (cl.getClass().getClassLoader().getClass().getName().indexOf("hook.impl.Weaving") > 0)) {
99 ;
100 } else {
101 Thread.currentThread().setContextClassLoader(cl);
102 }
103 Class testClass = Class.forName(testClassName, true, Thread.currentThread().getContextClassLoader());
104
105
106 Constructor ctor = null;
107 Object testInstance = null;
108 try {
109
110 ctor = testClass.getConstructor(new Class[] {});
111 testInstance = ctor.newInstance(new Object[] {});
112 Method setNameMethod = testClass.getMethod("setExpression", new Class[] {
113 String.class
114 });
115 setNameMethod.invoke(testInstance, new Object[] {
116 testMethodName
117 });
118 } catch (NoSuchMethodException e) {
119 ctor = testClass.getConstructor(new Class[] {
120 String.class
121 });
122 testInstance = ctor.newInstance(new Object[] {
123 testMethodName
124 });
125 }
126 Method runAfterWeavingMethod = testClass.getMethod("runBareAfterWeaving", new Class[] {});
127 runAfterWeavingMethod.invoke(testInstance, new Object[] {});
128 }
129 }
130 }