public void testInscription() {
    assertNotNull(MessageSS.inscription(new Ipv4("0.0.0.0"), 1, 0, Bool.FALSE));
    assertNull(MessageSS.inscription(new Ipv4("0.0.0.0"), 1, 0, null));

    String message = MessageSS.inscription(new Ipv4("0.0.0.0"), 1, 0, Bool.TRUE);
    assertNull(Message.getParam(message, 0));
    assertTrue(
        Message.getParam(message, MessageSS.SS_INSCRIPTION_RESULT).equals(Bool.TRUE.toString()));
    assertNull(Message.getParam(message, MessageSS.SS_INSCRIPTION_RESULT + 1));
  }