// Invalid first byte should be rejected by token parsing
        CIFSException ex = assertThrows(CIFSException.class, () -> ctx.initSecContext(new byte[] { firstByte }, 0, 1));
        assertEquals("Invalid token", ex.getMessage());

        // Ensure mechContext was not engaged due to early failure
        verify(this.mechContext, never()).initSecContext(any(), anyInt(), anyInt());
    }

    @Test

        PACDecodingException e =
                assertThrows(PACDecodingException.class, () -> PacMac.calculateMac(PacSignature.KERB_CHECKSUM_HMAC_MD5, keys, TEST_DATA));
        assertEquals("Missing key", e.getMessage());
    }

    /**
     * Test calculateMac with an invalid algorithm type.
     */
    @Test
    void testCalculateMacInvalidAlgorithm() {
        Map<Integer, KerberosKey> keys = new HashMap<>();

        try {
            notificationHelper.sendToSlack(null, discloser);
        } catch (Exception e) {
            fail("sendToSlack() should not throw an exception with blank URLs: " + e.getMessage());
        }
    }

    public void test_sendToSlack_withNullWebhookUrls() {
        // Setup mock configuration with null webhook URLs
        ComponentUtil.setFessConfig(new MockFessConfig() {

     *
     * @param cause
     *            the cause
     */
    public UnsupportedEncodingRuntimeException(final UnsupportedEncodingException cause) {
        super("ECL0105", new Object[] { cause.getMessage() }, cause);
    }

    void testConstructorWithMessage() {
        String testMessage = "This is a test message for NdrException.";
        NdrException exception = new NdrException(testMessage);
        assertEquals(testMessage, exception.getMessage(), "The exception message should match the input message.");
    }

    /**
     * Test the NO_NULL_REF static field.
     * Ensures that the static field holds the expected string value.
     */
    @Test

        }

        @Override
        public void add(ModelProblemCollectorRequest req) {
            if (!ModelProblem.Severity.WARNING.equals(req.getSeverity())) {
                result.addMessage(req.getMessage());
            }
        }
    }

            securityDescriptor = new SecurityDescriptor();
            bufferIndex += securityDescriptor.decode(buffer, bufferIndex, len);
        } catch (final IOException ioe) {
            throw new RuntimeException(ioe.getMessage());
        }

        return bufferIndex - start;
    }

    @Override
    public String toString() {
        return ("NtTransQuerySecurityResponse[" + super.toString() + "]");
    }

        assertEquals(Problem.Severity.ERROR, problems.get(0).getSeverity(), "First problem should be ERROR");
        assertEquals("Error message", problems.get(0).getMessage(), "First problem should have correct message");
        assertEquals(Problem.Severity.WARNING, problems.get(1).getSeverity(), "Second problem should be WARNING");
    }

            SmbException ex =
                    assertThrows(SmbException.class, () -> SmbCopyUtil.copyFile(src, dest, buffers, 8, new WriterThread(), sh, dh));
            assertTrue(ex.getMessage().contains("smb://src"));
            assertTrue(ex.getMessage().contains("smb://dest"));
        }

        @Test
        @DisplayName("copyFile swallows when ignoreCopyToException=true")

            dataStoreFactory.add(null, dataStore);
            fail("Should throw IllegalArgumentException");
        } catch (IllegalArgumentException e) {
            assertEquals("name or dataStore is null.", e.getMessage());
        }
    }

    // Test add method with null dataStore
    public void test_add_nullDataStore() {
        try {
            dataStoreFactory.add("testName", null);