void withFilter_acceptsSome_skipsOthers_andVerifiesInteractions() throws Exception {
        SmbFile parent = newParent();
        List<FileEntry> entries = Arrays.asList(entry("keep1", SmbConstants.TYPE_SHARE), entry("skip1", SmbConstants.TYPE_SHARE),
                entry("keep2", SmbConstants.TYPE_SHARE));

        // Filter accepts names starting with "keep"
        when(filter.accept(any())).thenAnswer(inv -> {

    }

    /**
     * Skips over and discards {@code n} bytes of data from this input stream.
     * This method delegates to {@link FileInputStream#skip(long)}.
     *
     * @param n the number of bytes to be skipped
     * @return the actual number of bytes skipped
     * @throws IOException if an I/O error occurs.
     */
    @Override
    public long skip(final long n) throws IOException {

    }

    /**
     * Skips over and discards n bytes of data from this input stream.
     *
     * @param n the number of bytes to be skipped
     * @return the actual number of bytes skipped
     * @throws IOException if an I/O error occurs
     */
    @Override
    public long skip(final long n) throws IOException {
        return inputStream.skip(n);
    }

    /**

            }
        });
        assertEquals("open fail", ex.getMessage());
        verify(tree, times(1)).release(); // closed on constructor failure
    }

    @Test
    @DisplayName("Iteration skips '.' and '..' and returns valid entries")
    void iterationSkipsDotAndDotDot() throws Exception {
        // Arrange
        stubAcquireReturnsSelf();
        FileEntry initial = entry("a");

        final byte[] bytes = new byte[8 + sidSize * 4];
        readFully(bytes);
        return new SID(bytes, 0);
    }

    /**
     * Skips the specified number of bytes in the stream.
     * @param n the number of bytes to skip
     * @return the actual number of bytes skipped
     * @throws IOException if an I/O error occurs
     */
    public int skipBytes(final int n) throws IOException {

        SocketInputStream sis = new SocketInputStream(in);

        // Try to skip more than available
        // Skip uses read internally, which may throw IOException when it tries to read the next header
        try {
            long skipped = sis.skip(10);
            // If it doesn't throw, it should only skip what's available
            assertEquals(3, skipped);
        } catch (IOException e) {

            // ID for domain (used with relative IDs to get SIDs)
            final int domainIdPointer = pacStream.readInt();

            // Skip some reserved fields
            pacStream.skipBytes(8);

            this.userAccountControl = pacStream.readInt();

            // Skip some reserved fields
            pacStream.skipBytes(28);

            // Extra SIDs information

        byte[] nameBytes = originalFileName.getBytes(StandardCharsets.UTF_16LE);

        byte[] buffer = new byte[100];
        buffer[0] = 1; // replaceIfExists = true
        // Skip 7 reserved bytes (1-7)
        // Skip 8 bytes for RootDirectory (8-15)
        SMBUtil.writeInt4(nameBytes.length, buffer, 16);
        System.arraycopy(nameBytes, 0, buffer, 20, nameBytes.length);

        }

        @Test
        @DisplayName("skip: positive advances; non-positive returns 0")
        void skipBehavior() throws Exception {
            SmbFileInputStream in = newStream();
            assertEquals(0, in.skip(0));
            assertEquals(0, in.skip(-1));
            assertEquals(5, in.skip(5));
        }
    }

    @Nested
    @DisplayName("SMB1 interactions")

        bufferIndex += 4;

        this.leaseFlags = SMBUtil.readInt4(buffer, bufferIndex);
        bufferIndex += 4;

        // LeaseDuration (8 bytes) - reserved, skip
        bufferIndex += 8;

        byte[] parentKeyBytes = new byte[16];
        System.arraycopy(buffer, bufferIndex, parentKeyBytes, 0, 16);
        this.parentLeaseKey = new Smb2LeaseKey(parentKeyBytes);