// Act & Assert
        assertTrue(signingDigest.verify(testData, 0, 8, 0, message));
        assertFalse(signingDigest.verify(testData, 0, 8, 0, message));
        assertTrue(signingDigest.verify(testData, 0, 8, 0, message));
        assertFalse(signingDigest.verify(testData, 0, 8, 0, message));
        assertTrue(signingDigest.verify(testData, 0, 8, 0, message));

        ExecutorService executor = Executors.newFixedThreadPool(threadCount);

        // Create test data
        byte[] testData = new byte[64];
        for (int i = 0; i < testData.length; i++) {
            testData[i] = (byte) i;
        }

        // Run concurrent updates
        for (int i = 0; i < threadCount; i++) {
            executor.submit(() -> {
                try {

        byte[] paddedData = new byte[testData.length + 200];
        System.arraycopy(testData, 0, paddedData, 100, testData.length);

        byte[] compressed = compressionService.compress(paddedData, 100, testData.length, CompressionService.COMPRESSION_LZ77);
        byte[] decompressed = compressionService.decompress(compressed, CompressionService.COMPRESSION_LZ77);

        assertArrayEquals(testData, decompressed);
    }

    @Test

        byte[] testData = "Test data with offset".getBytes();
        byte[] buffer = new byte[200];
        int offset = 50;
        System.arraycopy(testData, 0, buffer, offset, testData.length);

        int result = response.readDataWireFormat(buffer, offset, testData.length);

        assertEquals(testData.length, result);
        byte[] actualData = new byte[testData.length];

        SMBUtil.writeInt4(messageLength, buffer, bufferIndex + 12);
        System.arraycopy(testData, 0, buffer, bufferIndex + 16, testData.length);

        // Decode
        int bytesDecoded = response.decode(buffer, bufferIndex, buffer.length);

        // Verify results
        assertEquals(namedPipeState, response.getNamedPipeState());

        src[srcIndex + 52] = 0x20; // hex code matching mockQueryAddress
        src[srcIndex + 53] = 0x04; // flags: active

        // MAC address (6 bytes)
        byte[] testMac = { 0x00, 0x11, 0x22, 0x33, 0x44, 0x55 };
        System.arraycopy(testMac, 0, src, srcIndex + 55, 6);

        // Statistics (6 bytes)
        byte[] stats = { 0x00, 0x01, 0x02, 0x03, 0x04, 0x05 };
        System.arraycopy(stats, 0, src, srcIndex + 61, 6);

        SMBUtil.writeInt4(0, buffer, bodyStart + 12);

        // Write test data at the specified offset
        byte[] testData = new byte[dataLength];
        for (int i = 0; i < dataLength; i++) {
            testData[i] = (byte) (i & 0xFF);
        }
        System.arraycopy(testData, 0, buffer, dataOffsetFromHeader, dataLength);

        // Use reflection to set headerStart

     * Test that input stream content is not read (only validated).
     */
    public void test_getText_doesNotReadInputStream() throws Exception {
        final byte[] testData = "This data should not be read".getBytes();
        final InputStream in = new ByteArrayInputStream(testData);
        final Map<String, String> params = new HashMap<>();
        params.put(ExtractData.RESOURCE_NAME_KEY, "filename.txt");

        assertNotNull(os);
        byte[] testData = "test data".getBytes();
        os.write(testData);
        os.flush();
        os.close();

        // Assert
        // Verify that data was written to the underlying stream through CacheStream
        verify(initialOutputStream).write(testData);
        verify(initialOutputStream).flush();
        verify(initialOutputStream).close();

     */
    public void test_validateInputStream_doesNotConsumeStream() throws Exception {
        final byte[] testData = "test data for validation".getBytes();
        final ByteArrayInputStream in = new ByteArrayInputStream(testData);
        final int availableBefore = in.available();

        extractor.testValidateInputStream(in);

        final int availableAfter = in.available();