byte[] buf = new byte[length];
        Arrays.fill(buf, (byte) 0xFF);
        return buf;
    }

    @Test
    @DisplayName("constructor initialises command and parameters correctly")
    void testConstructorInitialisesFields() throws Exception {
        int level = 42;
        Trans2QueryFSInformation cmd = new Trans2QueryFSInformation(level);
        // constants are defined on SmbComTransaction, inherited via