@Test
public void should_receive_non_block_response() throws CoapException {

    givenPutRequest(100);
    assertEquals(coap().payload(new byte[100]).put().build(), bwc.request);
    //when
    receive(coap().payload(new byte[200]).ack(C204_CHANGED));
    //then
    verify(callback).call(coap().payload(new byte[200]).ack(C204_CHANGED).build());
}