@DisplayName("Should check for guest credentials")
    void testIsGuest() {
        // Given
        when(mockCredentials.isGuest()).thenReturn(true);

        // When
        boolean isGuest = mockCredentials.isGuest();

        // Then
        assertTrue(isGuest);
        verify(mockCredentials).isGuest();
    }

     */
    boolean isAnonymous();

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

        // Verify that the new context uses NtlmPasswordAuthenticator (guest)
        assertTrue(wrappedContext.getCredentials() instanceof NtlmPasswordAuthenticator);
        assertTrue(wrappedContext.getCredentials().isGuest());
    }

    @Test
    void testGetCredentials() {
        assertEquals(mockCredentials, context.getCredentials());
    }

    @Test
    void testHasDefaultCredentials_withNonAnonymous() {

    @Override
    public boolean isAnonymous() {
        return false;
    }

    /**
     * {@inheritDoc}
     *
     * @see jcifs.smb.NtlmPasswordAuthenticator#isGuest()
     */
    @Override
    public boolean isGuest() {
        return false;
    }

    @Override
    public Kerb5Authenticator clone() {
        JAASAuthenticator auth = new JAASAuthenticator();

        assertTrue(guestAuth.isGuest());
        assertFalse(guestAuth.isAnonymous());

        // Test anonymous detection
        NtlmPasswordAuthenticator anonAuth = new NtlmPasswordAuthenticator("", new char[0]);
        assertTrue(anonAuth.isAnonymous());
        assertFalse(anonAuth.isGuest());

        // Test user authentication

        }

        @Override
        public void refresh() throws CIFSException {
            // no-op for tests
        }

        @Override
        public boolean isGuest() {
            return false; // not guest for test purposes
        }

        @Override
        public boolean isAnonymous() {
            return false; // not anonymous for test purposes
        }

        return getName();
    }

    @Override
    public boolean isAnonymous() {
        return this.type == AuthenticationType.NULL;
    }

    @Override
    public boolean isGuest() {
        return this.type == AuthenticationType.GUEST;
    }

    static String unescape(String str) throws NumberFormatException, UnsupportedEncodingException {
        char ch;
        int i, j, state, len;

        setupNegotiateStubs();

        NtlmPasswordAuthenticator auth = mock(NtlmPasswordAuthenticator.class);
        when(auth.isAnonymous()).thenReturn(true);
        when(auth.isGuest()).thenReturn(true);
        when(auth.getUsername()).thenReturn("guest");
        when(auth.getUserDomain()).thenReturn("dom");

        // Construct

                    response = sessResponse;
                }

                if (!this.getConfig().isAllowGuestFallback() && response.isLoggedInAsGuest()
                        && (!this.credentials.isGuest() && !this.credentials.isAnonymous())) {
                    throw new SmbAuthException(NtStatus.NT_STATUS_LOGON_FAILURE);
                }
                if (!this.credentials.isAnonymous() && response.isLoggedInAsGuest()) {

                    this.lmHash = new byte[0];
                    this.ntHash = new byte[0];
                    this.capabilities &= ~SmbConstants.CAP_EXTENDED_SECURITY;
                    if (a.isGuest()) {
                        this.accountName = a.getUsername();
                        if (this.isUseUnicode()) {
                            this.accountName = this.accountName.toUpperCase();
                        }