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Re: Writing DOM Level 3 Load & Save tests

From: <jvrdam@xs4all.nl>
Date: Sun, 24 Mar 2002 13:48:06 +0100 (CET)
Message-ID: <4913.62.163.200.152.1016974086.squirrel@webmail.xs4all.nl>
To: <www-dom-ts@w3.org>
Curt wrote:

<curt>
  handleEvent basically was intended to be used to define something 
  like an anonymous inner class.

  <var name="myHandler" type="EventListener">
     <handleEvent return="true">
        <!--  body of method goes here -->
     </handleEvent>
  </var>
</curt>

Ok, sounds promising.
Lets have a look at a simple example derived from our testsuite to verify 
the setup. (bare in mind that this is the first test I'm writing using the 
framework...)

----------
public class LSTest {

  DOMImplementation   implementation  ;
  DOMImplementationLS lsImplementation;
  Document            document        ;
  DOMBuilder          builder         ;
  MyDOMBuilderFilter  myfilter        ;

  ......

  public void testFilterStartNode() throws Exception {

    lsImplementation = (DOMImplementationLS) implementation;
    builder          = lsImplementation.createDOMBuilder
(DOMImplementationLS.MODE_SYNCHRONOUS);
    myfilter         = new MyDOMBuilderFilter();

    builder.setFilter(myfilter);
    document = builder.parseURI(getURL("test.xml").toString());

    assertEquals("elt2 is skipped, so document element has only one child", 
1, document.getDocumentElement().getChildNodes().getLength());
    assertEquals("That one child is elt1", "elt1", 
document.getDocumentElement().getFirstChild().getNodeName());
  }

}

class MyDOMBuilderFilter implement DOMBuilderFilter{

      public int startNode(Node element) {
        boolean accept = ! element.getNodeName().equals("elt2");
        if (accept) {
          return NodeFilter.FILTER_ACCEPT;
        } else {
          return NodeFilter.FILTER_REJECT;
        }
      }

      public int endNode(Node enode) {
        return NodeFilter.FILTER_ACCEPT;
      }

      public int getWhatToShow() {
        return NodeFilter.SHOW_ELEMENT;
      }
}
-------------

The XML file for the actual test would look something like:

<test xmlns="http://www.w3.org/2001/DOM-Test-Suite/Level-3" 
name="builderfilter">

  <metadata>
    <title>attrSpecifiedValue</title>
    <creator>X-Hive</creator>
    <description></description>
    <contributor>X-Hive</contributor>
    <date qualifier="created">2002-03-23</date>
    <subject resource="http://www.w3.org/TR/DOM-Level-3-ASLS/load-
save.html#LS-Interfaces-DOMBuilderFilter"/>
  </metadata>

  <var name="implementation"   type="DOMImplementation"/>   
  <var name="lsImplementation" type="DOMImplementationLS"/> 
  <var name="document"         type="Document"/>            
  <var name="builder"          type="DOMBuilder"/>          

  <var name="myfilter"         type="MyDOMBuilderFilter"> 

     <var name="accept" type="boolean"/>

     <startNode return="returnValue" snode="element">
        <nodeName var="accept" obj="element"/>
        <if>
            <equals actual="accept" expected="elt2" ignoreCase="false"/>
            <assign var="returnValue" value="FILTER_REJECT"/>            
          <else>
            <assign var="returnValue" value="FILTER_ACCEPT"/>            
          </else>
        </if>
     </startNode>

     <endNode return="returnValue" enode="endnode">
        <assign var="returnValue" value="FILTER_ACCEPT"/>            
     </endNode> 

     <getWhatToShow return="returnValue">
        <assign var="returnValue" value="SHOW_ELEMENT"/>            
     </getWhatToShow>
  </var>

  <implementationLS var="lsImplementation"/>
  <createDOMBuilder var="builder" obj="lsImplementation"
                                  mode="MODE_SYNCHRONOUS"/>
  <setFilter obj="builder" filter="myfilter"/>
  <parseURI  var="document" obj="builder" uri="test.xml"/>

  -----asserts-----

</test>


--------------

If this is somehow correct than I guess the dtd needs some work, especially 
when you look at the definition of <var>
By the way, how are constants handled ?

jeroen

--
Jeroen van Rotterdam
X-Hive Corporation
http://www.x-hive.com
jeroen@x-hive.com
Received on Sunday, 24 March 2002 07:43:49 GMT

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