XmlTestCase


1   package com.tonbeller.tbutils.xmlunit;
2   
3   import java.io.IOException  ;
4   import java.io.InputStream  ;
5   import java.util.Calendar  ;
6   import java.util.Date  ;
7   import java.util.GregorianCalendar  ;
8   import java.util.List  ;
9   import java.util.Locale  ;
10  
11  import javax.xml.parsers.DocumentBuilder  ;
12  import javax.xml.parsers.DocumentBuilderFactory  ;
13  import javax.xml.parsers.ParserConfigurationException  ;
14  import javax.xml.transform.Transformer  ;
15  import javax.xml.transform.TransformerConfigurationException  ;
16  import javax.xml.transform.TransformerException  ;
17  import javax.xml.transform.TransformerFactory  ;
18  import javax.xml.transform.TransformerFactoryConfigurationError  ;
19  import javax.xml.transform.dom.DOMResult  ;
20  import javax.xml.transform.dom.DOMSource  ;
21  
22  import junit.framework.TestCase;
23  
24  import org.jaxen.JaxenException;
25  import org.jaxen.XPath;
26  import org.jaxen.dom.DOMXPath;
27  import org.w3c.dom.Document  ;
28  import org.w3c.dom.Element  ;
29  import org.w3c.dom.Node  ;
30  import org.xml.sax.SAXException  ;
31  
32  /**
33   * xml test utilities
34   *
35   * @author av
36   */
37  public abstract class XmlTestCase extends TestCase {
38  
39    public XmlTestCase(String   name) {
40      super(name);
41    }
42  
43    /**
44     * loads a document from xml file
45     */
46    public Document   load(String   name)
47      throws ParserConfigurationException  , SAXException  , IOException   {
48      DocumentBuilderFactory   dbf = DocumentBuilderFactory.newInstance();
49      dbf.setValidating(false);
50      dbf.setExpandEntityReferences(true);
51  
52      DocumentBuilder   parser = dbf.newDocumentBuilder();
53      InputStream   is = getClass().getResourceAsStream(name);
54      return parser.parse(is);
55    }
56    
57    public Document   transform(String   name, Document   src) throws TransformerFactoryConfigurationError  , TransformerException   {
58      Transformer   tf = TransformerFactory.newInstance().newTransformer();
59      DOMSource   domsrc = new DOMSource  (src);
60      DOMResult   domres = new DOMResult  ();
61      tf.transform(domsrc, domres);
62      return (Document  )domres.getNode();
63    }
64  
65    /**
66     * evaluates xpathExpr on node and asserts that the
67     * result contains <code>nodeCount</code> nodes
68     */
69    public void assertNodeCount(Node   node, String   xpathExpr, int nodeCount) throws JaxenException {
70      XPath xpath = new DOMXPath(xpathExpr);
71      List   list = xpath.selectNodes(node);
72      assertEquals("Node count" + xpathExpr, nodeCount, list.size());
73    }
74  
75    /**
76     * returns the <code>Element</code> that <code>xpathExpr</code> identifies
77     */
78    public Element   getElement(Node   node, String   xpathExpr) throws JaxenException {
79      XPath xpath = new DOMXPath(xpathExpr);
80      List   list = xpath.selectNodes(node);
81      assertEquals("Node count" + xpathExpr, 1, list.size());
82      return (Element  ) list.get(0);
83    }
84  
85    /**
86     * creates a date
87     */
88    public Date   getDate(int day, int month, int year) {
89      Calendar   cal = GregorianCalendar.getInstance(Locale.GERMANY);
90      cal.set(Calendar.DAY_OF_MONTH, day);
91      cal.set(Calendar.MONTH, month - 1);
92      cal.set(Calendar.YEAR, year);
93      cal.set(Calendar.HOUR_OF_DAY, 0);
94      cal.set(Calendar.MINUTE, 0);
95      cal.set(Calendar.SECOND, 0);
96      cal.set(Calendar.MILLISECOND, 0);
97      return cal.getTime();
98    }
99  
100 }
101
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