assertFalse(inner.isEmpty(), "inner part of toString should not be empty");
    }

    @Test
    @DisplayName("constructor sets correct command value")
    void constructorSetsCorrectCommand() {
        SmbComLogoffAndX msg = new SmbComLogoffAndX(null);
        assertNotNull(msg, "Message should not be null");
        // SMB_COM_LOGOFF_ANDX = 0x74