SMBUtil.writeInt2(8, buffer, 58); // Security buffer length

        // Add some dummy security data at offset 64 from start
        buffer[64] = (byte) 0x4E; // NTLMSSP signature start
        buffer[65] = (byte) 0x54;
        buffer[66] = (byte) 0x4C;
        buffer[67] = (byte) 0x4D;
        buffer[68] = (byte) 0x53;
        buffer[69] = (byte) 0x53;
        buffer[70] = (byte) 0x50;

        filter.init(filterConfig);

        // Test NTLM Type 1 message handling
        byte[] type1Message = new byte[] { 0x4E, 0x54, 0x4C, 0x4D, 0x53, 0x53, 0x50, 0x00, 0x01, 0x00, 0x00, 0x00 };
        String authHeader = "NTLM " + new String(org.bouncycastle.util.encoders.Base64.encode(type1Message));

 * Tests all constructors, parsing, and serialization functionality.
 */
@DisplayName("Type2Message Comprehensive Tests")
class Type2MessageTest {

    private static final byte[] TEST_CHALLENGE = new byte[] { 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x08 };
    private static final String TEST_TARGET = "TEST_TARGET";
    private static final String TEST_DOMAIN = "TEST_DOMAIN";
    private static final String TEST_HOSTNAME = "TEST_HOSTNAME";

    /**

        byte[] data = { 0x01, 0x02, 0x03, 0x04, 0x05 };
        ByteEncodable encodable = new ByteEncodable(data, 1, 3);

        // Verify size
        assertEquals(3, encodable.size(), "Size should be equal to the specified length");
    }

    @Test
    void testEncodeBasic() {
        // Test basic encoding
        byte[] data = { 0x01, 0x02, 0x03, 0x04, 0x05 };

        doAnswer(inv -> {
            byte[] b = inv.getArgument(0);
            int off = inv.getArgument(1);
            b[off] = 0x12;
            b[off + 1] = 0x34;
            return 2;
        }).when(raf).read(any(byte[].class), anyInt(), eq(2));
        assertEquals(0x1234, raf.readUnsignedShort());
        assertEquals((short) 0x1234, raf.readShort());

        // Modify the buffers
        requestBuffer[0] = (byte) 0xFF;
        responseBuffer[0] = (byte) 0xEE;

        // Verify modifications are reflected
        assertEquals((byte) 0xFF, negotiation.getRequestRaw()[0]);
        assertEquals((byte) 0xEE, negotiation.getResponseRaw()[0]);
    }

    @Test
    @DisplayName("Test with different buffer sizes")

  public void testIsWellFormed_4BytesSamples() {
    // Valid 4 byte.
    assertWellFormed(0xF0, 0xA4, 0xAD, 0xA2);
    // Bad trailing bytes
    assertNotWellFormed(0xF0, 0xA4, 0xAD, 0x7F);
    assertNotWellFormed(0xF0, 0xA4, 0xAD, 0xC0);
    // Special cases for byte2
    assertNotWellFormed(0xF0, 0x8F, 0xAD, 0xA2);
    assertNotWellFormed(0xF4, 0x90, 0xAD, 0xA2);
  }

  /** Tests some hard-coded test cases. */

    @Override
    protected int writeBytesWireFormat(final byte[] dst, int dstIndex) {
        final int start = dstIndex;

        dst[dstIndex] = (byte) 0x04;
        dstIndex++;
        dstIndex += writeString(this.oldFileName, dst, dstIndex);
        dst[dstIndex++] = (byte) 0x04;
        if (this.isUseUnicode()) {
            dst[dstIndex++] = (byte) '\0';
        }
        dstIndex += writeString(this.newFileName, dst, dstIndex);

    }

    @Test
    void testReadInt4() {
        byte[] src = new byte[] { (byte) 0x78, (byte) 0x56, (byte) 0x34, (byte) 0x12, // 0x12345678
                (byte) 0xFF, (byte) 0xFF, (byte) 0xFF, (byte) 0xFF, // 0xFFFFFFFF
                (byte) 0x00, (byte) 0x00, (byte) 0x00, (byte) 0x00, // 0x00000000
                (byte) 0xEF, (byte) 0xCD, (byte) 0xAB, (byte) 0x89 // 0x89ABCDEF
        };

        SmbComCreateDirectory smbCom = new SmbComCreateDirectory(mockConfig, directoryName);

        // Expected format: buffer format (0x04) + path string (null terminated)
        byte[] expected = new byte[directoryName.length() + 2];
        expected[0] = 0x04; // Buffer format
        System.arraycopy(directoryName.getBytes(StandardCharsets.UTF_8), 0, expected, 1, directoryName.length());