assertEquals((byte) 0x74, msg.command, "Command should be SMB_COM_LOGOFF_ANDX");
    }

    @Test
    @DisplayName("constructor with null andx does not throw exception")
    void constructorWithNullAndxNoException() {
        // This test verifies that passing null doesn't cause any issues
        assertDoesNotThrow(() -> {
            SmbComLogoffAndX msg = new SmbComLogoffAndX(null);