@Test
 public void content() throws IOException {
   byte[] bytes = "body".getBytes(Charset.defaultCharset());
   request.setContent(bytes);
   assertEquals(bytes.length, request.getContentLength());
   assertNotNull(request.getInputStream());
   assertEquals(
       "body", StreamUtils.copyToString(request.getInputStream(), Charset.defaultCharset()));
 }
 @Test
 public void noContent() throws IOException {
   assertEquals(-1, request.getContentLength());
   assertNotNull(request.getInputStream());
   assertEquals(-1, request.getInputStream().read());
 }