public  void testPageContext() throws IOException 
{
        
        assertNotNull("Page context should not be null", pageContext);
        HttpServletRequestWrapper wrappedRequest =
            (HttpServletRequestWrapper) pageContext.getRequest();           
        assertSame(request.getOriginalRequest(), 
            wrappedRequest.getOriginalRequest()); 
        assertSame(response, pageContext.getResponse());
        ServletConfigWrapper wrappedConfig =
            (ServletConfigWrapper) pageContext.getServletConfig();           
        assertSame(config.getOriginalConfig(), 
            wrappedConfig.getOriginalConfig());
}

Verify that the page context is not null and that we can use it.