*/
    String getUserDomain ();


    /**
     * @return whether these are anonymous credentials
     */
    boolean isAnonymous ();


    /**
     * @return whether these are guest credentials
     */
    boolean isGuest ();

    }

    static final NtlmPasswordAuthentication NULL =
                new NtlmPasswordAuthentication( "", "", "" );
    static final NtlmPasswordAuthentication GUEST =
                new NtlmPasswordAuthentication( "?", "GUEST", "" );
    static final NtlmPasswordAuthentication DEFAULT =
                new NtlmPasswordAuthentication( null );

    String domain;
    String username;
    String password;

        CIFSContext ctx = getContext();
        ctx = withConfig(ctx, new DelegatingConfiguration(ctx.getConfig()) {

            @Override
            public String getGuestUsername () {
                return "jcifs-guest";
            }
        }).withGuestCrendentials();

        try ( SmbResource f = new SmbFile(getTestShareGuestURL(), ctx) ) {
            checkConnection(f);
        }
        catch ( SmbAuthException e ) {

     * @see jcifs.CIFSContext#withGuestCrendentials()
     */
    @Override
    public CIFSContext withGuestCrendentials () {
        return withCredentials(new NtlmPasswordAuthenticator(null, null, null, AuthenticationType.GUEST));
    }


    /**
     * {@inheritDoc}
     *
     * @see jcifs.CIFSContext#getCredentials()
     */
    @Override
    public Credentials getCredentials () {
        return getDefaultCredentials();

    /**
     * @return a child context using anonymous credentials
     */
    CIFSContext withAnonymousCredentials ();


    /**
     * 
     * @return a child context using guest credentials
     */
    CIFSContext withGuestCrendentials ();


    /**
     * 
     * @param creds
     * @return a child context using using the given credentials
     */

        Assume.assumeNotNull(testUser);
        return testUser;
    }


    protected String getTestShareGuestURL () {
        String testGuestShare = getProperties().get(TestProperties.TEST_SHARE_GUEST);
        Assume.assumeNotNull(testGuestShare);
        return "smb://" + getTestServer() + "/" + testGuestShare + "/";
    }


    protected String getTestShareURL () {

        try ( SmbSessionImpl treesess = t.getSession() ) {
            if ( treesess.getCredentials().isAnonymous() || treesess.getCredentials().isGuest() ) {
                // refresh anonymous session or fallback to anonymous from guest login
                try ( SmbSessionInternal s = trans
                        .getSmbSession(this.ctx.withAnonymousCredentials(), treesess.getTargetHost(), treesess.getTargetDomain())