}

  companion object {
    /**
     * From the HTTP/2 specs, the default initial window size for all streams is 64 KiB. (Chrome 25
     * uses 10 MiB).
     */
    const val DEFAULT_INITIAL_WINDOW_SIZE = 65535

    /** HTTP/2: Size in bytes of the table used to decode the sender's header blocks. */
    const val HEADER_TABLE_SIZE = 1

    /** HTTP/2: The peer must not send a PUSH_PROMISE frame when this is 0. */

    // Buffer pool configuration
    private final int initialSendBuffers = 32;
    private final int initialReceiveBuffers = 64;
    private final int sendBufferSize = 65536; // 64KB
    private final int receiveBufferSize = 65536; // 64KB

    /**
     * Create new RDMA buffer manager
     *
     * @param provider RDMA provider for memory registration
     */
    public RdmaBufferManager(RdmaProvider provider) {

    @BeforeEach
    void setUp() {
        MockitoAnnotations.openMocks(this);
        when(mockConfig.getNotifyBufferSize()).thenReturn(4096);
        when(mockConfig.getTransactionBufferSize()).thenReturn(65535);
    }

    @Test
    @DisplayName("Test constructor initialization with basic parameters")
    void testConstructorBasic() {
        int fid = 0x1234;
        int completionFilter = FILE_NOTIFY_CHANGE_FILE_NAME;

    assertThat(UnsignedLongs.divide(0xfffffffffffffffdL, 0xfffffffffffffffeL)).isEqualTo(0);
    assertThat(UnsignedLongs.divide(0xfffffffffffffffeL, 65535)).isEqualTo(281479271743488L);
    assertThat(UnsignedLongs.divide(0xfffffffffffffffeL, 2)).isEqualTo(0x7fffffffffffffffL);
    assertThat(UnsignedLongs.divide(0xfffffffffffffffeL, 5)).isEqualTo(3689348814741910322L);
  }

    assertThat(escapeAsString(e, TEST_STRING)).isEqualTo(TEST_STRING);
  }

  public void testSimpleEscaper() {
    UnicodeEscaper e = SIMPLE_ESCAPER;
    String expected =
        "[0]abyz[128][256][2048][4096]ABYZ[65535]"
            + "["
            + Character.MIN_SUPPLEMENTARY_CODE_POINT
            + "]"
            + "0189["
            + Character.MAX_CODE_POINT
            + "]";

    assertThat(escapeAsString(e, TEST_STRING)).isEqualTo(TEST_STRING);
  }

  public void testSimpleEscaper() {
    UnicodeEscaper e = SIMPLE_ESCAPER;
    String expected =
        "[0]abyz[128][256][2048][4096]ABYZ[65535]"
            + "["
            + Character.MIN_SUPPLEMENTARY_CODE_POINT
            + "]"
            + "0189["
            + Character.MAX_CODE_POINT
            + "]";

        // Set excessive negotiate context count (writeInt2(-1) becomes 65535)
        SMBUtil.writeInt2(-1, buffer, 6);

        SMBProtocolDecodingException exception = assertThrows(SMBProtocolDecodingException.class, () -> {
            response.readBytesWireFormat(buffer, 0);
        });

        assertTrue(exception.getMessage().contains("Invalid negotiate context count: 65535"));
    }

    /**

    /**
     *
     * Property {@code jcifs.smb.client.rcv_buf_size} (int, default 65535)
     *
     * @return receive buffer size, in bytes
     * @deprecated use getReceiveBufferSize instead
     */
    @Deprecated
    int getRecieveBufferSize();

    /**
     *
     * Property {@code jcifs.smb.client.rcv_buf_size} (int, default 65535)
     *
     * @return receive buffer size, in bytes
     */

    void getMaximumBufferSize_returns() throws Exception {
        // Arrange
        when(handle.getMaximumBufferSize()).thenReturn(65535);

        // Act
        int size = handle.getMaximumBufferSize();

        // Assert
        assertEquals(65535, size);
        verify(handle).getMaximumBufferSize();
    }

    @Test

        assertEquals("Structure size != 4", ex1.getMessage());

        // Test maximum 2-byte value (65535)
        SMBUtil.writeInt2(65535, buffer, 0);

        SMBProtocolDecodingException ex2 = assertThrows(SMBProtocolDecodingException.class, () -> response.readBytesWireFormat(buffer, 0));