}
		if size > maxChunkSize {
			cr.err = errChunkTooBig
			return n, cr.err
		}
	}

	if cap(cr.buffer) < size {
		cr.buffer = make([]byte, size)
	} else {
		cr.buffer = cr.buffer[:size]
	}

	// Now, we read the payload.
	_, err = io.ReadFull(cr.reader, cr.buffer)
	if err == io.EOF && size != 0 {
		err = io.ErrUnexpectedEOF
	}
	if err != nil && err != io.EOF {
		cr.err = err

    /**
     * Decompresses data into a provided buffer.
     *
     * @param compressedData the compressed data buffer
     * @param offset the offset in the compressed data buffer
     * @param length the length of compressed data
     * @param outputBuffer the output buffer for decompressed data
     * @param outputOffset the offset in the output buffer
     * @param algorithm the compression algorithm that was used

     * Ensure encode throws NPE when passed a null buffer.
     */
    @Test
    @DisplayName("Encode with null buffer throws NullPointerException")
    public void testEncodeNullBuffer() throws NdrException {
        NdrHyper hyper = new NdrHyper(5L);
        assertThrows(NullPointerException.class, () -> hyper.encode(null));
    }

    /**
     * Ensure decode throws NPE when passed a null buffer.
     */
    @Test

        SMBUtil.writeTime(testTime, buffer, 32); // changeTime
        SMBUtil.writeInt8(1024L, buffer, 40); // endOfFile
        SMBUtil.writeInt8(2048L, buffer, 48); // allocationSize
        SMBUtil.writeInt4(0x20, buffer, 56); // extFileAttributes
        SMBUtil.writeInt4(512, buffer, 64); // eaSize

        // Decode
        fileBothDirectoryInfo.decode(buffer, 0, buffer.length);

func BenchmarkEncodeRStat(b *testing.B) {
	v := RStat{}
	var buf bytes.Buffer
	msgp.Encode(&buf, &v)
	b.SetBytes(int64(buf.Len()))
	en := msgp.NewWriter(msgp.Nowhere)
	b.ReportAllocs()
	b.ResetTimer()
	for i := 0; i < b.N; i++ {
		v.EncodeMsg(en)
	}
	en.Flush()
}

func BenchmarkDecodeRStat(b *testing.B) {
	v := RStat{}
	var buf bytes.Buffer
	msgp.Encode(&buf, &v)
	b.SetBytes(int64(buf.Len()))

        SMBUtil.writeInt4(-1000, buffer, bufferIndex + 11);
        SMBUtil.writeInt4(0, buffer, bufferIndex + 15);
        SMBUtil.writeInt4(0, buffer, bufferIndex + 19);
        SMBUtil.writeInt4(-5000, buffer, bufferIndex + 23);
        SMBUtil.writeInt4(0, buffer, bufferIndex + 27);
        SMBUtil.writeInt4(0, buffer, bufferIndex + 31);
        buffer[bufferIndex + 35] = (byte) 0x80; // 128 as unsigned

    /**
     * Gets the negotiated send buffer size.
     *
     * @return the send buffer size
     */
    int getSendBufferSize();

    /**
     * Gets the negotiated receive buffer size.
     *
     * @return the receive buffer size
     */
    int getReceiveBufferSize();

    /**
     * Gets the negotiated maximum transaction buffer size.
     *

        // Group SID at offset 40
        buffer.position(40);
        buffer.put((byte) 0x01); // Revision
        buffer.put((byte) 0x01); // SubAuthorityCount
        buffer.put(new byte[] { 0, 0, 0, 0, 0, 2 }); // IdentifierAuthority
        buffer.putInt(0); // SubAuthority

        // DACL at offset 60
        buffer.position(60);
        buffer.put((byte) 0x02); // AclRevision

    @Test
    void testReadSetupWireFormat() {
        byte[] buffer = new byte[10];
        int result = response.readSetupWireFormat(buffer, 0, 10);
        assertEquals(0, result, "readSetupWireFormat should always return 0.");
    }

    /**
     * Tests the readParametersWireFormat method.
     */
    @Test
    void testReadParametersWireFormat() {
        byte[] buffer = new byte[10];

	v := allTierStats{}
	var buf bytes.Buffer
	msgp.Encode(&buf, &v)
	b.SetBytes(int64(buf.Len()))
	en := msgp.NewWriter(msgp.Nowhere)
	b.ReportAllocs()
	b.ResetTimer()
	for i := 0; i < b.N; i++ {
		v.EncodeMsg(en)
	}
	en.Flush()
}

func BenchmarkDecodeallTierStats(b *testing.B) {
	v := allTierStats{}
	var buf bytes.Buffer
	msgp.Encode(&buf, &v)
	b.SetBytes(int64(buf.Len()))