@Test
 public void setCharacterEncodingThenContentType() {
   request.setCharacterEncoding("UTF-8");
   request.setContentType("test/plain");
   assertEquals("test/plain", request.getContentType());
   assertEquals("test/plain;charset=UTF-8", request.getHeader("Content-Type"));
   assertEquals("UTF-8", request.getCharacterEncoding());
 }