@DisplayName("Should handle file ID updates")
        void testFileIdUpdates() {
            // Initial file ID
            byte[] initialFileId = new byte[16];
            Arrays.fill(initialFileId, (byte) 0x11);
            request.setFileId(initialFileId);

            byte[] buffer1 = new byte[256];
            request.writeBytesWireFormat(buffer1, 0);

        originalPairs.add(new AvTimestamp(new byte[] { 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x08 }));
        originalPairs.add(new AvTargetName("TESTNAME".getBytes()));
        originalPairs.add(new AvSingleHost(new byte[] { 0x11, 0x22, 0x33, 0x44 }));
        originalPairs.add(new AvChannelBindings(new byte[] { 0x55, 0x66 }));

        byte[] encoded = AvPairs.encode(originalPairs);
        List<AvPair> decodedPairs = AvPairs.decode(encoded);

        SmbRandomAccessFile raf = spy(newInstance("r", false, false, false));
        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());

   * {@code ByteBuffer.allocate(2).putShort(value).array()}. For example, the input value {@code
   * (short) 0x1234} would yield the byte array {@code {0x12, 0x34}}.
   *
   * <p>If you need to convert and concatenate several values (possibly even of different types),
   * use a shared {@link java.nio.ByteBuffer} instance, or use {@link

            // Given - Prepare a valid SMB2 Tree Connect Response buffer
            byte[] buffer = new byte[16];
            // Structure size (16)
            buffer[0] = 0x10;
            buffer[1] = 0x00;
            // Share type (DISK)
            buffer[2] = Smb2TreeConnectResponse.SMB2_SHARE_TYPE_DISK;
            // Reserved
            buffer[3] = 0;

  @GwtIncompatible // Chars.fromByteArray
  public void testFromByteArray() {
    assertThat(Chars.fromByteArray(new byte[] {0x23, 0x45, (byte) 0xDC})).isEqualTo('\u2345');
    assertThat(Chars.fromByteArray(new byte[] {(byte) 0xFE, (byte) 0xDC})).isEqualTo('\uFEDC');
  }

  @GwtIncompatible // Chars.fromByteArray
  public void testFromByteArrayFails() {
    assertThrows(

        // Then
        assertTrue(response.haveCapabilitiy(0x01)); // Has this bit
        assertTrue(response.haveCapabilitiy(0x0F)); // Has all these bits
        assertFalse(response.haveCapabilitiy(0x10)); // Doesn't have this bit
        assertFalse(response.haveCapabilitiy(0x40)); // Doesn't have this bit
    }

    @Test
    @DisplayName("Should check DFS support correctly")

            try (MockedStatic<Smb3KeyDerivation> mockedKeyDerivation = mockStatic(Smb3KeyDerivation.class)) {
                byte[] derivedKey = new byte[16];
                Arrays.fill(derivedKey, (byte) 0xEE);
                mockedKeyDerivation.when(
                        () -> Smb3KeyDerivation.deriveSigningKey(eq(Smb2Constants.SMB2_DIALECT_0311), any(byte[].class), any(byte[].class)))

                }
                if (addr.getAddress() instanceof NbtAddress) {
                    final int code = ((NbtAddress) addr.getAddress()).getNameType();
                    if (code == 0x1d || code == 0x1b) {
                        type = TYPE_WORKGROUP;
                        return type;
                    }
                }
                type = TYPE_SERVER;
            }
        }

             * 00SSFSMB
             * 0 - 0's
             * S - size of payload
             * FSMB - 0xFF SMB magic #
             */

            if (this.sbuf[0] == (byte) 0x00 && this.sbuf[4] == (byte) 0xFE && this.sbuf[5] == (byte) 'S' && this.sbuf[6] == (byte) 'M'
                    && this.sbuf[7] == (byte) 'B') {
                this.smb2 = true;
                // also read the rest of the header