assertThat(frameLog(false, 0, 0, TYPE_SETTINGS, FLAG_ACK))
      .isEqualTo(">> 0x00000000     0 SETTINGS      ACK")
    assertThat(frameLog(true, 0, 0, TYPE_SETTINGS, FLAG_ACK))
      .isEqualTo("<< 0x00000000     0 SETTINGS      ACK")
    assertThat(frameLog(true, 3, 22, TYPE_HEADERS, FLAG_END_HEADERS))
      .isEqualTo("<< 0x00000003    22 HEADERS       END_HEADERS")

[2020-01-01 00:00:00] >> 0x00000000     6 SETTINGS
[2020-01-01 00:00:00] >> 0x00000000     4 WINDOW_UPDATE
[2020-01-01 00:00:00] >> 0x00000003    47 HEADERS       END_STREAM|END_HEADERS
[2020-01-01 00:00:00] << 0x00000000     6 SETTINGS
[2020-01-01 00:00:00] << 0x00000000     0 SETTINGS      ACK
[2020-01-01 00:00:00] << 0x00000000     4 WINDOW_UPDATE
[2020-01-01 00:00:00] >> 0x00000000     0 SETTINGS      ACK

    // Provide a handful of representative mappings present in the table.
    static Stream<Arguments> knownMappings() {
        return Stream.of(Arguments.of(0x00000000, 0x00000000), Arguments.of(0x00020001, 0xc000000f), Arguments.of(0x00050001, 0xc0000022),
                Arguments.of(0x00500001, 0xc0000035), Arguments.of(0x007b0001, 0xc0000033), Arguments.of(0x00320001, 0xC00000BB));
    }

    @ParameterizedTest
    @MethodSource("knownMappings")

    }

    @Test
    @DisplayName("Should handle pending status")
    void testPendingStatus() {
        // Given
        int pendingStatus = NtStatus.NT_STATUS_PENDING;

        // When/Then
        assertEquals((int) 0x00000103L, pendingStatus);
        // Pending status is informational (not error)

        assertTrue((DcerpcError.DCERPC_FAULT_UNK_IF & 0xFF000000) == 0x1C000000, "DCERPC_FAULT_UNK_IF should be in 0x1C range");
        assertTrue((DcerpcError.DCERPC_FAULT_PROTO_ERROR & 0xFF000000) == 0x1C000000, "DCERPC_FAULT_PROTO_ERROR should be in 0x1C range");
    }

    @Test
    @DisplayName("Should verify DcerpcException uses fault codes correctly")

                // Known NT status code - NT_STATUS_UNSUCCESSFUL
                Arguments.of(0xC0000001, "A device attached to the system is not functioning."),
                Arguments.of(0x00000000, "NT_STATUS_SUCCESS"),
                // An error that maps via DOS mapping
                Arguments.of(0x00000002, SmbException.getMessageByCode(0x00000002)),
                // Unknown code → hex string (uppercase)

    }

    @Test
    void testResourceStateConstants() {
        assertEquals(0x00000000, WitnessNotification.WITNESS_RESOURCE_STATE_UNKNOWN);
        assertEquals(0x00000001, WitnessNotification.WITNESS_RESOURCE_STATE_AVAILABLE);
        assertEquals(0x000000FF, WitnessNotification.WITNESS_RESOURCE_STATE_UNAVAILABLE);
    }

     */
    int[][] DOS_ERROR_CODES = { { 0x00000000, 0x00000000 }, { 0x00010001, 0xc0000002 }, { 0x00010002, 0xc0000002 },
            { 0x00020001, 0xc000000f }, { 0x00020002, 0xc000006a }, { 0x00030001, 0xc000003a }, { 0x00030002, 0xc00000cb },
            { 0x00040002, 0xc00000ca }, { 0x00050001, 0xc0000022 }, { 0x00050002, 0xc000000d }, { 0x00060001, 0xc0000008 },

     */
    int[][] DOS_ERROR_CODES =
            { { 0x00000000, 0x00000000 }, { 0x00010001, 0xc0000002 }, { 0x00010002, 0xc0000002 }, { 0x00020001, 0xc000000f },
                    { 0x00020002, 0xc000006a }, { 0x00030001, 0xc000003a }, { 0x00030002, 0xc00000cb }, { 0x00040002, 0xc00000ca },
                    { 0x00050001, 0xc0000022 }, { 0x00050002, 0xc000000d }, { 0x00060001, 0xc0000008 }, { 0x00060002, 0xc00000cc },

    private byte[] contextHandle;

    // Registration flags
    /** No special registration flags */
    public static final int WITNESS_REGISTER_NONE = 0x00000000;
    /** Register for IP address change notifications */
    public static final int WITNESS_REGISTER_IP_NOTIFICATION = 0x00000001;

    // Registration state
    private volatile WitnessRegistrationState state;
    private volatile long lastHeartbeat;