@Test public void handleMessageToClientConnectAck() { StompHeaderAccessor connectHeaders = StompHeaderAccessor.create(StompCommand.CONNECT); connectHeaders.setHeartbeat(10000, 10000); connectHeaders.setNativeHeader(StompHeaderAccessor.STOMP_ACCEPT_VERSION_HEADER, "1.0,1.1"); Message<?> connectMessage = MessageBuilder.withPayload(new byte[0]).setHeaders(connectHeaders).build(); SimpMessageHeaderAccessor connectAckHeaders = SimpMessageHeaderAccessor.create(SimpMessageType.CONNECT_ACK); connectAckHeaders.setHeader(SimpMessageHeaderAccessor.CONNECT_MESSAGE_HEADER, connectMessage); Message<byte[]> connectAckMessage = MessageBuilder.withPayload(new byte[0]).setHeaders(connectAckHeaders).build(); this.protocolHandler.handleMessageToClient(this.session, connectAckMessage); verifyNoMoreInteractions(this.channel); // Check CONNECTED reply assertEquals(1, this.session.getSentMessages().size()); TextMessage textMessage = (TextMessage) this.session.getSentMessages().get(0); Message<?> message = new StompDecoder().decode(ByteBuffer.wrap(textMessage.getPayload().getBytes())); StompHeaderAccessor replyHeaders = StompHeaderAccessor.wrap(message); assertEquals(StompCommand.CONNECTED, replyHeaders.getCommand()); assertEquals("1.1", replyHeaders.getVersion()); assertArrayEquals(new long[] {0, 0}, replyHeaders.getHeartbeat()); assertEquals("joe", replyHeaders.getNativeHeader("user-name").get(0)); }