1   /*
2    * $Header$
3    * $Revision$
4    * $Date$
5    *
6    * ====================================================================
7    *
8    * Copyright 2000-2002 bob mcwhirter & James Strachan.
9    * All rights reserved.
10   *
11   * Redistribution and use in source and binary forms, with or without
12   * modification, are permitted provided that the following conditions are
13   * met:
14   * 
15   *   * Redistributions of source code must retain the above copyright
16   *     notice, this list of conditions and the following disclaimer.
17   * 
18   *   * Redistributions in binary form must reproduce the above copyright
19   *     notice, this list of conditions and the following disclaimer in the
20   *     documentation and/or other materials provided with the distribution.
21   * 
22   *   * Neither the name of the Jaxen Project nor the names of its
23   *     contributors may be used to endorse or promote products derived 
24   *     from this software without specific prior written permission.
25   * 
26   * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS
27   * IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
28   * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
29   * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER
30   * OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
31   * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
32   * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
33   * 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
36   * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
37   *
38   * ====================================================================
39   * This software consists of voluntary contributions made by many
40   * individuals on behalf of the Jaxen Project and was originally
41   * created by bob mcwhirter <bob@werken.com> and
42   * James Strachan <jstrachan@apache.org>.  For more information on the
43   * Jaxen Project, please see <http://www.jaxen.org/>.
44   *
45   * $Id$
46   */
47  
48  package org.jaxen.test;
49  
50  import junit.framework.TestCase;
51  
52  import org.jaxen.saxpath.SAXPathException;
53  import org.jaxen.saxpath.XPathReader;
54  import org.jaxen.saxpath.helpers.XPathReaderFactory;
55  
56  public class XPathReaderFactoryTest extends TestCase
57  {
58      public XPathReaderFactoryTest(String name)
59      {
60          super( name );
61      }
62      
63      
64      protected void tearDown() {
65          System.setProperty( XPathReaderFactory.DRIVER_PROPERTY, "" );
66      }
67  
68      public void testDefault() throws SAXPathException
69      {
70          System.setProperty( XPathReaderFactory.DRIVER_PROPERTY,
71                              "" );
72          XPathReader reader = XPathReaderFactory.createReader();
73          assertNotNull( reader );
74      }
75  
76      public void testValidByProperty() throws SAXPathException
77      {
78          System.setProperty( XPathReaderFactory.DRIVER_PROPERTY,
79                              "org.jaxen.test.MockXPathReader"  );
80  
81          XPathReader reader = XPathReaderFactory.createReader();
82          assertNotNull( reader );
83          assertSame( MockXPathReader.class, reader.getClass() );
84      }
85  
86      public void testInvalidByProperty() 
87      {
88          System.setProperty( XPathReaderFactory.DRIVER_PROPERTY,
89                              "java.lang.String" );
90  
91          try
92          {
93              XPathReaderFactory.createReader();
94              fail( "Should have thrown SAXPathException" );
95          }
96          catch (SAXPathException e) {
97              // expected and correct
98              assertNotNull(e.getMessage());
99          }
100     }
101 
102     public void testNonExistantByProperty()
103     {
104         System.setProperty( XPathReaderFactory.DRIVER_PROPERTY,
105                             "i.am.a.class.that.does.not.Exist" );
106 
107         try
108         {
109             XPathReaderFactory.createReader();
110             fail( "Should have thrown SAXPathException" );
111         }
112         catch (org.jaxen.saxpath.SAXPathException e)
113         {
114             // expected and correct
115         }
116     }
117 
118     public void testValidExplicit() throws SAXPathException
119     {
120         XPathReader reader = XPathReaderFactory.createReader( "org.jaxen.test.MockXPathReader" );
121         assertNotNull( reader );
122         assertSame( MockXPathReader.class, reader.getClass() );
123     }
124 
125     public void testInvalidExplicit()
126     {
127         try
128         {
129             XPathReaderFactory.createReader( "java.lang.String" );
130             fail( "Should have thrown SAXPathException" );
131         }
132         catch (org.jaxen.saxpath.SAXPathException e)
133         {
134             // expected and correct
135         }
136     }
137 
138     public void testNonExistantExplicit()
139     {
140         try
141         {
142             XPathReaderFactory.createReader( "i.am.a.class.that.does.not.Exist" );
143             fail( "Should have thrown SAXPathException" );
144         }
145         catch (org.jaxen.saxpath.SAXPathException e)
146         {
147             // expected and correct
148         }
149     }
150 }