switch (resp.errorCode) {
        case NtStatus.NT_STATUS_SUCCESS:
            break;
        case NtStatus.NT_STATUS_ACCESS_DENIED:
        case NtStatus.NT_STATUS_WRONG_PASSWORD:
        case NtStatus.NT_STATUS_LOGON_FAILURE:
        case NtStatus.NT_STATUS_ACCOUNT_RESTRICTION:
        case NtStatus.NT_STATUS_INVALID_LOGON_HOURS:
        case NtStatus.NT_STATUS_INVALID_WORKSTATION:

        // Interaction: sendrecv invoked exactly once
        verify(handle, times(1)).sendrecv(any(jcifs.dcerpc.msrpc.MsrpcLookupSids.class));
    }

    @ParameterizedTest
    @ValueSource(ints = { NtStatus.NT_STATUS_SUCCESS, NtStatus.NT_STATUS_NONE_MAPPED, 0x00000107 })
    @DisplayName("resolveSids(DcerpcHandle,...) accepts success/none/some-not-mapped codes")
    void resolveSids_allowsCertainRetvals_noThrow(int ret) throws Exception {

        final int status = getStatus();
        return status != NtStatus.NT_STATUS_INVALID_PARAMETER && ((status != NtStatus.NT_STATUS_INVALID_PARAMETER)
                || ((this.ctlCode != Smb2IoctlRequest.FSCTL_SRV_COPYCHUNK) && (this.ctlCode != Smb2IoctlRequest.FSCTL_SRV_COPYCHUNK_WRITE)))
                && ((status != NtStatus.NT_STATUS_BUFFER_OVERFLOW)

import jcifs.internal.SMBProtocolDecodingException;
import jcifs.internal.smb1.trans.nt.FileNotifyInformationImpl;
import jcifs.internal.smb2.ServerMessageBlock2Response;
import jcifs.internal.util.SMBUtil;
import jcifs.smb.NtStatus;

/**
 * SMB2 Change Notify response message.
 *
 * This response contains information about file system changes
 * that occurred in the monitored directory.
 *
 * @author mbechler
 */

                // Mark response as received and set status = NT_STATUS_NO_SUCH_FILE
                setStatus(qr, NtStatus.NT_STATUS_NO_SUCH_FILE);
                qr.received();
                q.setResponse(qr);
                // Now emulate error thrown by transport for create chain
                throw new SmbException(NtStatus.NT_STATUS_NO_SUCH_FILE, false);
            }
            return null;

import jcifs.internal.CommonServerMessageBlockRequest;
import jcifs.internal.SMBProtocolDecodingException;
import jcifs.internal.smb2.ServerMessageBlock2Response;
import jcifs.internal.util.SMBUtil;
import jcifs.smb.NtStatus;

/**
 * SMB2 Session Setup response message. This response contains the server's authentication
 * challenge or confirms successful session establishment.
 *
 * @author mbechler
 *
 */

        case NtStatus.NT_STATUS_ACCOUNT_RESTRICTION:
        case NtStatus.NT_STATUS_INVALID_LOGON_HOURS:
        case NtStatus.NT_STATUS_INVALID_WORKSTATION:
        case NtStatus.NT_STATUS_PASSWORD_EXPIRED:
        case NtStatus.NT_STATUS_ACCOUNT_DISABLED:
        case NtStatus.NT_STATUS_ACCOUNT_LOCKED_OUT:
        case NtStatus.NT_STATUS_TRUSTED_DOMAIN_FAILURE:

import org.junit.jupiter.api.Test;

import jcifs.config.BaseConfiguration;
import jcifs.internal.SMBProtocolDecodingException;
import jcifs.internal.smb2.Smb2Constants;
import jcifs.internal.util.SMBUtil;
import jcifs.smb.NtStatus;
import jcifs.smb.SmbException;

class Smb2IoctlResponseTest {

    // Helper: build a minimal SMB2 header with a given status
    private static byte[] buildHeader(int status) {

 * <p>
 * The jCIFS client maps DOS error codes to NTSTATUS codes. This means that
 * the user may recieve a different error from a legacy server than that of
 * a newer varient such as Windows NT and above. If you should encounter
 * such a case, please report it to jcifs at samba dot org and we will
 * change the mapping.
 */

public class SmbException extends IOException implements NtStatus, DosError, WinError {

    @DisplayName("Happy path: known DOS codes map to expected NTSTATUS")
    void mapsKnownDosCodesToNtStatus(int dosCode, int expectedNtStatus) {
        // Act
        int actual = findNtStatusOrMinusOne(dosCode);

        // Assert
        assertEquals(expectedNtStatus, actual, "Mapping must match table entry");
    }

    @Test
    @DisplayName("Edge: zero DOS code maps to zero NTSTATUS")
    void zeroCodeMapsToZero() {
        // Act