private byte[] testFileId;
    private byte[] outputBuffer;
    private Smb2ReadRequest request;

    @BeforeEach
    void setUp() {
        MockitoAnnotations.openMocks(this);
        when(mockContext.getConfig()).thenReturn(mockConfig);

        testFileId = new byte[16];
        new SecureRandom().nextBytes(testFileId);
        outputBuffer = new byte[4096];

        byte[] outputBuffer = new byte[testData.length + 100];
        int writtenBytes =
                compressionService.decompress(compressed, 0, compressed.length, outputBuffer, 50, CompressionService.COMPRESSION_LZ77);

        assertEquals(testData.length, writtenBytes);

        byte[] extracted = new byte[testData.length];
        System.arraycopy(outputBuffer, 50, extracted, 0, testData.length);

     *
     * @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
     * @return the number of bytes written to the output buffer

            throws CIFSException {
        byte[] decompressed = decompress(compressedData, offset, length, algorithm);
        if (outputBuffer.length - outputOffset < decompressed.length) {
            throw new CIFSException("Output buffer too small");
        }
        System.arraycopy(decompressed, 0, outputBuffer, outputOffset, decompressed.length);