bb.position(offset);
            assertEquals(maxReferralLevel, bb.getShort());
        }

        @Test
        @DisplayName("Should encode empty path correctly")
        void testEncodeEmptyPath() {
            String path = "";
            int maxReferralLevel = 1;
            buffer = new DfsReferralRequestBuffer(path, maxReferralLevel);

            byte[] dst = new byte[buffer.size()];

    private final int maxReferralLevel;
    private final String path;

    /**
     * Constructs a DFS referral request buffer
     *
     * @param filename the DFS path to request referral for
     * @param maxReferralLevel the maximum referral level to request
     */
    public DfsReferralRequestBuffer(final String filename, final int maxReferralLevel) {
        this.path = filename;

        assertTrue(s.contains("maxReferralLevel=0x3"));
    }

    @ParameterizedTest
    @ValueSource(ints = { 0, 5, -1, 65534 })
    @DisplayName("referral level variations")
    void testLevels(int level) throws Exception {
        Trans2GetDfsReferral cmd = new Trans2GetDfsReferral("foo");
        setPrivateField(cmd, "maxReferralLevel", level);
        byte[] buffer = new byte[100];