01: /*
02: * Licensed to the Apache Software Foundation (ASF) under one or more
03: * contributor license agreements. See the NOTICE file distributed with
04: * this work for additional information regarding copyright ownership.
05: * The ASF licenses this file to You under the Apache License, Version 2.0
06: * (the "License"); you may not use this file except in compliance with
07: * the License. You may obtain a copy of the License at
08: *
09: * http://www.apache.org/licenses/LICENSE-2.0
10: *
11: * Unless required by applicable law or agreed to in writing, software
12: * distributed under the License is distributed on an "AS IS" BASIS,
13: * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
14: * See the License for the specific language governing permissions and
15: * limitations under the License.
16: */
17:
18: package org.apache.commons.beanutils.converters;
19:
20: import junit.framework.TestCase;
21: import junit.framework.TestSuite;
22:
23: /**
24: * Tests for the ClassReloader utility class.
25: */
26:
27: public class ClassReloaderTestCase extends TestCase {
28:
29: // ------------------------------------------------------------------------
30:
31: public ClassReloaderTestCase(String name) {
32: super (name);
33: }
34:
35: public static TestSuite suite() {
36: return new TestSuite(ClassReloaderTestCase.class);
37: }
38:
39: // ------------------------------------------------------------------------
40:
41: public static class DummyClass {
42: }
43:
44: /**
45: * Test basic operation of the ClassReloader.
46: */
47: public void testBasicOperation() throws Exception {
48: ClassLoader sharedLoader = this .getClass().getClassLoader();
49: ClassReloader componentLoader = new ClassReloader(sharedLoader);
50:
51: Class sharedClass = DummyClass.class;
52: Class componentClass = componentLoader.reload(sharedClass);
53:
54: // the two Class objects contain the same bytecode, but are not equal
55: assertTrue(sharedClass != componentClass);
56:
57: // the two class objects have different classloaders
58: assertSame(sharedLoader, sharedClass.getClassLoader());
59: assertSame(componentLoader, componentClass.getClassLoader());
60: assertTrue(sharedLoader != componentLoader);
61:
62: // verify that objects of these two types are not assignment-compatible
63: Object obj1 = sharedClass.newInstance();
64: Object obj2 = componentClass.newInstance();
65:
66: assertTrue("Obj1 class incorrect", sharedClass.isInstance(obj1));
67: assertFalse("Obj1 class incorrect", componentClass
68: .isInstance(obj1));
69: assertFalse("Obj2 class incorrect", sharedClass
70: .isInstance(obj2));
71: assertTrue("Obj2 class incorrect", componentClass
72: .isInstance(obj2));
73: }
74:
75: }
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