1   /*
2    * Copyright (c) 1998, 2005 Gargoyle Software Inc. All rights reserved.
3    *
4    * Redistribution and use in source and binary forms, with or without
5    * modification, are permitted provided that the following conditions are met:
6    *
7    * 1. Redistributions of source code must retain the above copyright notice,
8    *    this list of conditions and the following disclaimer.
9    * 2. Redistributions in binary form must reproduce the above copyright notice,
10   *    this list of conditions and the following disclaimer in the documentation
11   *    and/or other materials provided with the distribution.
12   * 3. The end-user documentation included with the redistribution, if any, must
13   *    include the following acknowledgment:
14   *
15   *       "This product includes software developed by Gargoyle Software Inc.
16   *        (http://www.GargoyleSoftware.com/)."
17   *
18   *    Alternately, this acknowledgment may appear in the software itself, if
19   *    and wherever such third-party acknowledgments normally appear.
20   * 4. The name "Gargoyle Software" must not be used to endorse or promote
21   *    products derived from this software without prior written permission.
22   *    For written permission, please contact info@GargoyleSoftware.com.
23   * 5. Products derived from this software may not be called "GSBase", nor may
24   *    "GSBase" appear in their name, without prior written permission of
25   *    Gargoyle Software Inc.
26   *
27   * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED WARRANTIES,
28   * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
29   * FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL GARGOYLE
30   * SOFTWARE INC. OR ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
31   * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
32   * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA,
33   * OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
34   * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
35   * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE,
36   * EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
37   */
38  package com.gargoylesoftware.base.gui;
39  
40  import com.gargoylesoftware.base.util.DetailedNullPointerException;
41  import java.awt.Component;
42  import junit.framework.TestCase;
43  
44  /***
45   * Tests for DefaultComponentLoader.
46   * 
47   * @version $Revision: 1.7 $
48   * @author <a href="mailto:mbowler@GargoyleSoftware.com">Mike Bowler</a>
49   */
50  public class DefaultComponentLoaderTest extends TestCase {
51  
52      /***
53       * Create a new test.
54       * @param name The name of the test.
55       */
56      public DefaultComponentLoaderTest( final String name ) {
57          super(name);
58      }
59  
60      /***
61       * Test constructor with valid parameters
62       * @throws ClassNotFoundException If the specified class was not found.
63       */
64      public void testStringConstructor_ValidParms() throws ClassNotFoundException {
65          new DefaultComponentLoader("java.awt.Frame");
66      }
67  
68      /***
69       * Test the string constructor with a class that isn't a component.
70       * @throws Exception if something bad happens.
71       */
72      public void testStringConstuctor_NotComponent() throws Exception {
73          try {
74              new DefaultComponentLoader("java.util.Date");
75              fail("Expected exception for class that isn't a component");
76          }
77          catch( final IllegalArgumentException e ) {
78              // Expected path
79          }
80      }
81  
82      /***
83       * Test the string constructor with the name of a class that doesn't exist.
84       * @throws Exception if something bad happens.
85       */
86      public void testStringConstuctor_BadClassName() throws Exception {
87          try {
88              new DefaultComponentLoader("java.util.Foobar");
89              fail("Expected exception for missing class");
90          }
91          catch( final ClassNotFoundException e ) {
92              // Expected path
93          }
94      }
95  
96      /***
97       * Test the string constructor with a null class name.
98       * @throws Exception if something bad happens.
99       */
100     public void testStringConstuctor_Null() throws Exception {
101         try {
102             new DefaultComponentLoader((String)null);
103             fail("Expected exception for null string");
104         }
105         catch( final DetailedNullPointerException e ) {
106             assertEquals("clazz", e.getArgumentName());
107         }
108     }
109 
110     /***
111      * Test the class constructor with a null class.
112      * @throws Exception if something bad happens.
113      */
114     public void testClassConstuctor_Null() throws Exception {
115         try {
116             new DefaultComponentLoader((Class)null);
117             fail("Expected exception for null class");
118         }
119         catch( final DetailedNullPointerException e ) {
120             assertEquals("clazz", e.getArgumentName());
121         }
122     }
123 
124     /***
125      * Test the class constructor with a class that doesn't have a default constructor.
126      * @throws Exception if something bad happens.
127      */
128     public void testClassConstuctor_NoDefaultConstructor() throws Exception {
129         /*** A fake component for testing */
130         class FakeComponent extends Component {
131             private static final long serialVersionUID = 1L;
132 
133 			/*** @param a Some parameter that is ignored for the test */
134             public FakeComponent(int a) {
135             }
136         }
137         try {
138             new DefaultComponentLoader( FakeComponent.class );
139             fail("Expected exception for class with no default constructor");
140         }
141         catch( final IllegalArgumentException e ) {
142             // Expected path
143         }
144     }
145 
146     /***
147      * Test the class constructor with a class that has a private constructor.
148      * @throws Exception if something bad happens.
149      */
150     public void testClassConstuctor_PrivateDefaultConstructor() throws Exception {
151         /*** A fake component for testing */
152         class FakeComponent extends Component {
153             private static final long serialVersionUID = 1L;
154 
155 			private FakeComponent() {
156             }
157         }
158         try {
159             new DefaultComponentLoader( FakeComponent.class );
160             fail("Expected exception for class with private default constructor");
161         }
162         catch( final IllegalArgumentException e ) {
163             // Expected path
164         }
165     }
166 }
167