@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();
    }

        return new Type3Message(this.transportContext, msg2, this.targetName, passwordString,
                this.auth.isGuest() ? null : this.auth.getUserDomain(),
                this.auth.isGuest() ? this.transportContext.getConfig().getGuestUsername() : this.auth.getUsername(), this.workstation,
                this.ntlmsspFlags, this.auth.isGuest() || !this.auth.isAnonymous());
    }

    /**

        assertEquals(creds.getUserDomain(), copy.getUserDomain());
        assertEquals(creds.isAnonymous(), copy.isAnonymous());
        assertEquals(creds.isGuest(), copy.isGuest());
        assertSame(subject, copy.getSubject(), "subject is the same reference in clone");
    }

    @Test
    @DisplayName("createContext returns SSPContext and interacts with CIFSContext")

        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

        }
    }

    @Test
    @DisplayName("isAnonymous and isGuest are always false")
    void testIsAnonymousAndGuestFalse() {
        JAASAuthenticator auth = new JAASAuthenticator();
        // JAAS-based authenticator should never be anonymous or guest
        assertFalse(auth.isAnonymous());
        assertFalse(auth.isGuest());
    }

    @ParameterizedTest
    @EnumSource(SubjectVariant.class)

        // 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() {

     */
    boolean isAnonymous();

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

    @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();

        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

        }

        @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
        }