Invocation of dynamically added JavaScript event handlers

<[email protected]> Wed, 12 Apr 2006 11:44:07 +0200
Newsgroups	gmane.comp.web.httpunit.devel
Message-ID	<B70880B308FD6D4C921FFFA8AA88846B2B7EED@S01B1F4D.flur.zuerich.ubs.ch>
My web application adds most of the JavaScript event handlers in an init
method. I noticed that those dynamically added handlers are not
executed.

When running the attached example with HttpUnit I only see the alert
message "initForm". When running it in the browser I see "initForm" and
as soon as I click the checkbox "my_checkbox clicked". This is what I
would expect with HttpUnit as well.

Is this kind of JavaScript coding not supported by HttpUnit?

Any ideas how to work around this problem?

Best regards,
Daniel

--- HttpUnit output of example code (see further down)
$ /d/programs/j2sdk1.4.2/bin/java -classpath
".;d:/programs/junit3.8.2/junit.jar;d:/programs/httpunit-1.6.2/lib/httpu
nit.jar;d:/programs/httpunit-1.6.2/jars/js.jar;d:/programs/httpunit-1.6.
2/jars/nekohtml.jar;d:/programs/httpunit-1.6.2/jars/xercesImpl.jar;d:/pr
ograms/httpunit-1.6.2/jars/xmlParserAPIs.jar" junit.textui.TestRunner
AddHandlerTest
.ALERT: initForm

Time: 0.484

OK (1 test)


--- File: add-handler.html
<html>
  <head><title>Test</title>
    <script type="text/javascript">
      <!--
      function initForm() {
        alert("initForm");
        document.my_form.my_checkbox.onclick = checkBoxOnClickHandler;
      }
      function checkBoxOnClickHandler() {
        alert(this.name + " clicked");
      }
      //-->
    </script>
  </head>
  <body onLoad="initForm();">
    <form name="my_form" action="select.html">
      <input type="checkbox" name="my_checkbox" value"1">My Checkbox
    </form>
  </body>
</html>

--- File: AddHandlerTest.java
import com.meterware.httpunit.WebConversation;
import com.meterware.httpunit.WebForm;
import com.meterware.httpunit.WebResponse;
import junit.framework.TestCase;

public class AddHandlerTest extends TestCase {
    public void testAddHandler() throws Exception {
        WebConversation wc = new WebConversation();
        WebResponse testPage =
wc.getResponse("http://localhost:8080/add-handler.html");
        assertEquals("Test", testPage.getTitle());
        WebForm form = testPage.getFormWithName("my_form");
        form.setCheckbox("my_checkbox", true);
        form.toggleCheckbox("my_checkbox");
        while (true) {
            String alert = wc.popNextAlert();
            if (alert.equals("")) break;
            System.err.println("ALERT: " + alert);
        }
    }
}


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