@Test
    @DisplayName("Should define well-known NT status constants")
    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);

         * negative so it with NT_STATUS_SUCCESS (0) the binary search will not be
         * performed properly. The effect is that the code at index 1 is never found
         * (NT_STATUS_UNSUCCESSFUL). So here we factor out NT_STATUS_SUCCESS
         * as a special case (which it is).
         */
        if (errcode == 0) {
            return "NT_STATUS_SUCCESS";
        }

    }

    @Test
    void throwsOnUnexpectedStructureSize() throws Exception {
        // structureSize != 49 and != 9 should raise an exception
        byte[] header = buildHeader(NtStatus.NT_STATUS_SUCCESS);
        byte[] buf = new byte[header.length + 10];
        System.arraycopy(header, 0, buf, 0, header.length);
        // Write invalid structure size 50 at body start

        Smb2SessionSetupResponse resp = newResponse();

        byte[] buf = new byte[256];
        int headerStart = 0;
        buildHeader(buf, headerStart, NtStatus.NT_STATUS_SUCCESS, 0x0001, 0xCAFEBABECAFEF00DL);

        int bodyStart = headerStart + Smb2Constants.SMB2_HEADER_LENGTH;
        byte[] blob = new byte[] { 1, 2, 3 };
        int secBufOffset = Smb2Constants.SMB2_HEADER_LENGTH + 8;

     */
    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
    @MethodSource("intErrorCodes")

        assertTrue(ex instanceof SmbException, "Should be an SmbException subtype");
        // SmbException default ctor leaves status 0, which equals NT_STATUS_SUCCESS
        assertEquals(NtStatus.NT_STATUS_SUCCESS, ex.getNtStatus(), "Default status should be success (0)");
    }

    // Edge/null/empty: message-only constructor should propagate message and set unsuccessful status
    @ParameterizedTest

        void testVerifySignatureSuccess() throws Exception {
            byte[] buffer = new byte[1024];
            echoResponse.setDigest(mockDigest);
            setStatus(echoResponse, NtStatus.NT_STATUS_SUCCESS);

            when(mockConfig.isRequireSecureNegotiate()).thenReturn(true);
            when(mockDigest.verify(buffer, 0, 100, 0, echoResponse)).thenReturn(false);

            jcifs.dcerpc.msrpc.MsrpcLookupSids rpc = (jcifs.dcerpc.msrpc.MsrpcLookupSids) msg;
            // Return success
            rpc.retval = NtStatus.NT_STATUS_SUCCESS;

            // Domains: single domain named TESTDOM
            lsarpc.LsarRefDomainList domains = new lsarpc.LsarRefDomainList();
            domains.count = 1;
            domains.max_count = 1;

    /* Don't bother to edit this. Everthing within the interface
     * block is automatically generated from the ntstatus package.
     */

    /** The operation completed successfully */
    int NT_STATUS_SUCCESS = 0x00000000;
    /** The requested operation was unsuccessful */
    int NT_STATUS_UNSUCCESSFUL = 0xC0000001;
    /** The requested operation is not implemented */
    int NT_STATUS_NOT_IMPLEMENTED = 0xC0000002;

            createResp = th.send(create);
        } catch (final SmbException e) {
            final Smb2CreateResponse cr = create.getResponse();
            if (cr != null && cr.isReceived() && cr.getStatus() == NtStatus.NT_STATUS_SUCCESS) {
                try {
                    th.send(new Smb2CloseRequest(th.getConfig(), cr.getFileId()));
                } catch (final SmbException e2) {
                    e.addSuppressed(e2);
                }