@Test
  public void handleMessageFromClient() {

    TextMessage textMessage =
        StompTextMessageBuilder.create(StompCommand.CONNECT)
            .headers(
                "login:guest", "passcode:guest", "accept-version:1.1,1.0", "heart-beat:10000,10000")
            .build();

    this.protocolHandler.handleMessageFromClient(this.session, textMessage, this.channel);

    verify(this.channel).send(this.messageCaptor.capture());
    Message<?> actual = this.messageCaptor.getValue();
    assertNotNull(actual);

    StompHeaderAccessor headers = StompHeaderAccessor.wrap(actual);
    assertEquals(StompCommand.CONNECT, headers.getCommand());
    assertEquals("s1", headers.getSessionId());
    assertEquals("joe", headers.getUser().getName());
    assertEquals("guest", headers.getLogin());
    assertEquals("PROTECTED", headers.getPasscode());
    assertArrayEquals(new long[] {10000, 10000}, headers.getHeartbeat());
    assertEquals(new HashSet<>(Arrays.asList("1.1", "1.0")), headers.getAcceptVersion());

    assertEquals(0, this.session.getSentMessages().size());
  }