cactus and servlet redirection

hi,
I have a servlet for adding books to a booksdb and another for listing
books.I am trying to use cactus for testing.

In the beginPostMethod(..) of testcase ,I created parameters needed
for creating a Book and a Publisher,and added them to WebRequest
instance.
testPostMethod() of testcase merely creates a BookAddServlet and calls
doPost()on it.
In doPost(..) of BookAddServlet,after a Book and a Publisher are
created ,the response.sendRedirect() is called to invoke
BookListServlet's doGet() method.
BookListServlet's doGet() method gets a list of books from booksdb and
adds them to request.Then using RequestDispatcher
 forwards to booklist.jsp.
It is the endPostMethod(..) where I am having a problem.
I want to test if after creating a book ,the booklist jsp page is
properly displayed.

I am using endPostMethod(com.meterware.httpunit.WebResponse response)
to make use of httpunit's WebResponse class.
Here ,I am getting response.getResponseCode() as 302.I don't get the
title string of booklist.jsp(which is "allBooks") when
I try response.getTitle().I only get an empty string.
Is this because the doGet() of BookList servlet is invoked in between?
Can someone comment on it?How do I test whether the response is
properly redirected to the correct jsp page?

thanks in advance
jim

web.xml maps the servlets as below
...
   <servlet>
    <servlet-name>booklistservlet</servlet-name>
    <servlet-class>bookshop.servlets.BookListServlet</servlet-class>
   </servlet>

   <servlet-mapping>
     <servlet-name>booklistservlet</servlet-name>
     <url-pattern>/booklistservlet</url-pattern>
   </servlet-mapping>

   <servlet>
    <servlet-name>addbookservlet</servlet-name>
    <servlet-class>bookshop.servlets.BookAddServlet</servlet-class>
   </servlet>

   <servlet-mapping>
     <servlet-name>addbookservlet</servlet-name>
     <url-pattern>/createbook</url-pattern>
   </servlet-mapping>
   ...

BookAddServlet.java
package bookshop.servlets;
....
public class BookAddServlet extends HttpServlet {
    private BookDaoImpl bookdaoimpl =BookDaoImpl.getInstance();
    private PublisherDaoImpl pubdaoimpl =PublisherDaoImpl.getInstance();

    public void doGet(HttpServletRequest request, HttpServletResponse
response)throws ServletException, IOException {
        RequestDispatcher dispatcher =
request.getRequestDispatcher("bookadd.jsp");
        List<Publisher> publishers = pubdaoimpl.findAllPublishers();
        request.setAttribute("publishers",publishers);
        dispatcher.forward(request, response);
    }
    public void doPost(HttpServletRequest request, HttpServletResponse
response)throws ServletException, IOException {
        String isbn = request.getParameter("isbn");
        String publisherName = request.getParameter("publishername");

        Book book = new Book();
        book.setIsbn(Long.parseLong(isbn));
        Publisher publisher = new Publisher();
        publisher.setName(publisherName);
        book.setPublisher(publisher);
        bookdaoimpl.saveOrUpdateBook(book);//publisher will be saved since
it is so configured in hibernate

        response.sendRedirect("booklistservlet");//which calls get method of
BookListServlet

    }
    private Date parseDate(String publishDate) {
        try {
            Date dt = new SimpleDateFormat("yyyy/MM/dd").parse(publishDate);
            return dt;
        } catch (ParseException e) {
            return null;
        }
    }
}

BookListServlet.java

package bookshop.servlets;
....
public class BookListServlet extends HttpServlet {
    private BookDaoImpl bookdaoimpl =BookDaoImpl.getInstance();
    public void doGet(HttpServletRequest request, HttpServletResponse
response)throws ServletException, IOException {
        List books = bookdaoimpl.findAllBooks();
        request.setAttribute("books", books);
        RequestDispatcher dispatcher =
request.getRequestDispatcher("booklist.jsp");
        dispatcher.forward(request, response);
    }
}

Now I want to test using cactus and httpunit these two servlets

package bookshop.test.cactus.servlet;

import org.apache.cactus.ServletTestCase;
import org.apache.cactus.WebRequest;
public class BookAddServletTests extends ServletTestCase{
    private BookAddServlet bookaddservlet;
    public BookAddServletTests(String theName) {
        super(theName);
    }
    public void beginPostMethod(WebRequest theRequest){
        String isbn = "1111";
        String publisherName = "amazon";
        theRequest.addParameter("isbn", isbn);
        theRequest.addParameter("publishername", publisherName);
    }

    public void testPostMethod() throws ServletException, IOException{
         BookAddServlet bookaddservlet = new BookAddServlet();
         bookaddservlet.doPost(this.request, this.response);
    }

    public void endPostMethod(com.meterware.httpunit.WebResponse
response) throws SAXException{
        assertEquals("response should be redirected",
302,response.getResponseCode());
        String responseTitle = response.getTitle();
        //this is where I have doubts..response should be redirected finally
to booklist.jsp which has a title "allBooks"
        assertEquals("response title should be
allBooks","allBooks",responseTitle);
    }

}