code: /** 
   * Make a post of form data
   * @throws Exception
   */
  @Test public void postFormWithNoCharset() throws Exception {
    final AtomicReference<String> body=new AtomicReference<String>();
    final AtomicReference<String> contentType=new AtomicReference<String>();
    handler=new RequestHandler(){
      @Override public void handle(    Request request,    HttpServletResponse response){
        body.set(new String(read()));
        contentType.set(request.getContentType());
        response.setStatus(HTTP_OK);
      }
    }
  ;
    Map<String,String> data=new LinkedHashMap<String,String>();
    data.put("name","user");
    data.put("number","100");
    int code=post(url).form(data,null).form("zip","12345").code();
    assertEquals(HTTP_OK,code);
    assertEquals("name=user&number=100&zip=12345",body.get());
    assertEquals("application/x-www-form-urlencoded",contentType.get());
  }
  