}

  /**
   * Asserts that an escaper does not escape the given character.
   *
   * @param escaper the non-null escaper to test
   * @param c the character to test
   */
  public static void assertUnescaped(CharEscaper escaper, char c) {
    Assert.assertNull(computeReplacement(escaper, c));
  }

  /**
   * Asserts that a Unicode escaper does not escape the given character.
   *
   * @param escaper the non-null escaper to test

  }

  /**
   * Asserts that an escaper does not escape the given character.
   *
   * @param escaper the non-null escaper to test
   * @param c the character to test
   */
  public static void assertUnescaped(CharEscaper escaper, char c) {
    Assert.assertNull(computeReplacement(escaper, c));
  }

  /**
   * Asserts that a Unicode escaper does not escape the given character.
   *
   * @param escaper the non-null escaper to test

    class ConstructorTests {

        @Test
        @DisplayName("Constructor with CIFSContext should create message with default flags")
        void testConstructor_CIFSContext() {
            // Given
            CIFSContext mockContext = createMockContext();

            // When
            Type2Message message = new Type2Message(mockContext);

            // Then

    class DecodeMethodTests {

        @Test
        @DisplayName("Should decode buffer with typical values correctly")
        void shouldDecodeBufferWithTypicalValues() throws SMBProtocolDecodingException {
            // Given - prepare buffer with typical file system values
            ByteBuffer buffer = ByteBuffer.allocate(32);
            buffer.order(ByteOrder.LITTLE_ENDIAN);
            buffer.putLong(1048576L); // Total allocation units (1M)

     *
     * @return the unknown name
     */
    NetbiosName getUnknownName();

    /**
     * Retrieve all addresses of a host by it's address. NetBIOS hosts can
     * have many names for a given IP address. The name and IP address make the
     * NetBIOS address. This provides a way to retrieve the other names for a
     * host with the same IP address.
     *
     * @param addr
     *            the address to query

            assertEquals(mockPolicyHandle, message.handle);
        }

        @Test
        @DisplayName("Should encode input parameters correctly")
        void testEncodeIn() throws NdrException {
            // Given: Close handle message
            samr.SamrCloseHandle message = new samr.SamrCloseHandle(mockPolicyHandle);

            // When: Encoding input
            message.encode_in(mockNdrBuffer);

    return construct(e1);
  }

  /**
   * Returns an immutable list containing the given elements, in order.
   *
   * @throws NullPointerException if any element is null
   */
  public static <E> ImmutableList<E> of(E e1, E e2) {
    return construct(e1, e2);
  }

  /**
   * Returns an immutable list containing the given elements, in order.
   *
   * @throws NullPointerException if any element is null
   */

  private @Nullable ByteBuffer scratch;

  /** Updates this hasher with the given byte. */
  protected abstract void update(byte b);

  /** Updates this hasher with the given bytes. */
  protected void update(byte[] b) {
    update(b, 0, b.length);
  }

  /** Updates this hasher with {@code len} bytes starting at {@code off} in the given buffer. */
  protected void update(byte[] b, int off, int len) {

        new SecureRandom().nextBytes(preauthIntegrity);
    }

    @Test
    @DisplayName("Should derive signing key for SMB 3.0.0 dialect")
    void testDeriveSigningKey_SMB300() {
        // Given
        int dialect = Smb2Constants.SMB2_DIALECT_0300;

        // When
        byte[] signingKey = Smb3KeyDerivation.deriveSigningKey(dialect, sessionKey, preauthIntegrity);

        // Then

    @DisplayName("Constructor Tests")
    class ConstructorTests {

        @Test
        @DisplayName("Should create instance with valid parameters")
        void testConstructorWithValidParameters() {
            // Given
            long sourceOffset = 1024L;
            long targetOffset = 2048L;
            int length = 4096;

            // When
            SrvCopychunk chunk = new SrvCopychunk(sourceOffset, targetOffset, length);