public  void doTest(String jspName) throws Exception 
{
        WebRequest request = new GetMethodWebRequest(jspName);
        WebResponse response = runner.getResponse(request);
        if (log.isDebugEnabled())
        {
            log.debug(response.getText());
        }
        WebTable[] tables = response.getTables();
        assertEquals("Wrong number of tables.", 1, tables.length);
        WebLink[] links = response.getLinks();
        assertEquals("Wrong number of links in result.", 1, links.length);
        assertEquals("Parameter in link should be encoded.", "/context/dynlink?param=1%2B1", links[0].getURLString());
}

Test link generated using column attributes.

 public String getJspName() 
{
        return "encodedparameter.jsp";
}