}

    public void test_init() {
        try {
            labelTypeHelper.init();
        } catch (Exception e) {
            fail("init() should not throw an exception: " + e.getMessage());
        }
    }

    public void test_load() {
        int result = labelTypeHelper.load();
        assertTrue(result >= 0);
    }

    public void test_refresh() {

        PACDecodingException exception = assertThrows(PACDecodingException.class, () -> new PacCredentialType(null));
        assertEquals("Invalid PAC credential type", exception.getMessage());
    }

    /**
     * Tests the constructor with a byte array that is too large.
     */
    @Test
    void testConstructorWithDataTooLarge() {

            fail("Should not throw exception: " + e.getMessage());
        }
    }

    public void test_sendMail_withEmptyInfoMap() {
        Map<String, String> infoMap = new HashMap<>();

        try {
            crawler.sendMail(infoMap);
        } catch (Exception e) {
            fail("Should not throw exception with empty map: " + e.getMessage());
        }
    }

        doThrow(new CIFSException("session key failure")).when(session).getSessionKey();

        CIFSException ex = assertThrows(CIFSException.class, () -> session.getSessionKey());
        assertTrue(ex.getMessage().contains("failure"));
        verify(session).getSessionKey();
    }

    // Happy path: transport is returned and verified
    @Test
    @DisplayName("getTransport returns mocked transport")

        // Assert: type, message derived from code, status mapping, and no cause
        assertNotNull(ex);
        assertTrue(ex instanceof SmbException);
        assertEquals(SmbException.getMessageByCode(errCode), ex.getMessage(), "message should reflect error code mapping");
        assertEquals(expectedStatus, ex.getNtStatus(), "status should map based on code");
        assertNull(ex.getCause(), "cause must be null for int constructor");

        assertEquals(SmbException.getStatusByCode(-1), e.getNtStatus());
        assertEquals(SmbException.getMessageByCode(-1), e.getMessage());
    }

    @Test
    void zeroCodeProducesSuccess() {
        SmbAuthException e = new SmbAuthException(0);
        assertEquals("NT_STATUS_SUCCESS", e.getMessage());
        assertEquals(SmbException.getStatusByCode(0), e.getNtStatus());
    }

            fail("Expected IOException");
        } catch (IOException e) {
            assertEquals("Test IOException", e.getMessage());
        } catch (ServletException e) {
            fail("Unexpected ServletException: " + e.getMessage());
        }
    }

    // Test doFilter when WebApiManager.process throws ServletException
    public void test_doFilter_withServletException() {

            assertTrue("Required methods exist", true);
        } catch (final NoSuchMethodException e) {
            fail("Required methods should exist: " + e.getMessage());
        }
    }

    public void test_inheritance() {
        assertTrue("Should implement ConstraintValidator interface",

            assertEquals("Malformed kerberos ticket", exception.getMessage(), "PAC exception should indicate malformed ticket.");
        } else if (exception instanceof NullPointerException) {
            // Empty input causes null ASN1 object, which is expected behavior
            assertTrue(exception.getMessage() == null || exception.getMessage().contains("Cannot invoke \"Object.getClass()\""),

        byte[] empty = new byte[0];

        // Act + Assert
        PACDecodingException ex = assertThrows(PACDecodingException.class, () -> new KerberosApRequest(empty, new KerberosKey[0]));
        assertTrue(ex.getMessage().contains("Empty kerberos ApReq"));
    }

    @Test
    @DisplayName("byte[] ctor: malformed DER is wrapped as PACDecodingException (IOException path)")
    void byteArrayConstructor_malformedDER_throwsWrapped() {