class SmbExceptionTest extends BaseTest {

    @Test
    @DisplayName("Should create SmbException with NT status code")
    void testSmbExceptionWithNTStatus() {
        // Given
        int ntStatus = NtStatus.NT_STATUS_ACCESS_DENIED;

        // When
        SmbException exception = new SmbException(ntStatus, false);

        // Then
        assertNotNull(exception);
        assertEquals(ntStatus, exception.getNtStatus());

    void testWellKnownStatusConstants() {
        // Verify important NT status constants are defined
        assertEquals(0x00000000, NtStatus.NT_STATUS_SUCCESS);
        assertEquals((int) 0xC0000022L, NtStatus.NT_STATUS_ACCESS_DENIED);
        assertEquals((int) 0xC0000034L, NtStatus.NT_STATUS_OBJECT_NAME_NOT_FOUND);
        assertEquals((int) 0xC0000043L, NtStatus.NT_STATUS_SHARING_VIOLATION);

     * - Non-NT small code to exercise default mapping to NT_STATUS_UNSUCCESSFUL
     */
    static Stream<Arguments> intErrorCodes() {
        return Stream.of(Arguments.of(NtStatus.NT_STATUS_ACCESS_DENIED, NtStatus.NT_STATUS_ACCESS_DENIED),
                Arguments.of(NtStatus.NT_STATUS_SUCCESS, NtStatus.NT_STATUS_SUCCESS),
                Arguments.of(0x00001234, NtStatus.NT_STATUS_UNSUCCESSFUL));
    }

    @ParameterizedTest

        void testVerifySignatureErrorWithSecureNegotiate() {
            byte[] buffer = new byte[100];
            response.setDigest(mockDigest);
            response.setStatusForTest(NtStatus.NT_STATUS_ACCESS_DENIED);
            when(mockConfig.isRequireSecureNegotiate()).thenReturn(true);
            when(mockDigest.verify(buffer, 0, 100, 0, response)).thenReturn(false);

    int NT_STATUS_END_OF_FILE = 0xC0000011;
    /** More processing is required to complete this request */
    int NT_STATUS_MORE_PROCESSING_REQUIRED = 0xC0000016;
    /** Access is denied */
    int NT_STATUS_ACCESS_DENIED = 0xC0000022;
    /** The data area passed to a system call is too small */
    int NT_STATUS_BUFFER_TOO_SMALL = 0xC0000023;
    /** The object name is invalid */
    int NT_STATUS_OBJECT_NAME_INVALID = 0xC0000033;

        jcifs.SID[] sids = new jcifs.SID[] { sid("S-1-1-0") };

        doAnswer(inv -> {
            jcifs.dcerpc.msrpc.MsrpcLookupSids rpc = inv.getArgument(0);
            rpc.retval = NtStatus.NT_STATUS_ACCESS_DENIED; // unexpected code
            rpc.names = new lsarpc.LsarTransNameArray();
            rpc.names.count = 1;
            rpc.names.names = new lsarpc.LsarTranslatedName[] { new lsarpc.LsarTranslatedName() };

        Smb2SessionSetupResponse resp = newResponse();

        byte[] buf = new byte[256];
        int headerStart = 0;
        buildHeader(buf, headerStart, NtStatus.NT_STATUS_ACCESS_DENIED, 0x0001, 0x0L);

        int bodyStart = headerStart + Smb2Constants.SMB2_HEADER_LENGTH;
        // Error response structure: size(2)=9, errorContextCount(1), reserved(1), bc(4), errorData(bc)

    int NT_STATUS_NO_SUCH_FILE = 0xC000000f;
    /** More processing is required to complete this request */
    int NT_STATUS_MORE_PROCESSING_REQUIRED = 0xC0000016;
    /** Access is denied */
    int NT_STATUS_ACCESS_DENIED = 0xC0000022;
    /** The data area passed to a system call is too small */
    int NT_STATUS_BUFFER_TOO_SMALL = 0xC0000023;
    /** The object name is invalid */
    int NT_STATUS_OBJECT_NAME_INVALID = 0xC0000033;

    class ErrorCodeTests {

        @Test
        @DisplayName("Should get error code from status")
        void testGetErrorCode() throws Exception {
            int status = NtStatus.NT_STATUS_ACCESS_DENIED;
            setStatus(echoResponse, status);

            assertEquals(status, echoResponse.getErrorCode());
        }
    }

    @Nested
    @DisplayName("Signed Flag Tests")

            }
            log.trace("VALIDATE_NEGOTIATE_INFO returned error", e);
            if (req.getResponse().isReceived() && req.getResponse().isVerifyFailed()
                    || e.getNtStatus() == NtStatus.NT_STATUS_ACCESS_DENIED) {
                // this is the signature error
                throw new SMBProtocolDowngradeException("Signature error during negotiate validation", e);
            }