// Create a root cause exception
        String rootCauseMessage = "Root cause error";
        Exception rootCause = new Exception(rootCauseMessage);

        // Create a ServletException with the root cause
        String servletErrorMessage = "Servlet error with cause";
        ServletException servletException = new ServletException(servletErrorMessage, rootCause);

public class InvalidQueryExceptionTest extends UnitFessTestCase {

    @Test
    public void test_constructor_withMessageCodeMessageAndCause() {
        // Setup
        final String message = "Invalid query syntax error";
        final Exception cause = new RuntimeException("Query parsing failed");
        final VaMessenger<FessMessages> messageCode = messages -> messages.addErrorsInvalidQueryUnknown(UserMessages.GLOBAL_PROPERTY_KEY);

                longMessage.append("This is a very long error message. ");
            }
            WebApiUtil.setError(500, longMessage.toString());

            // Test with special characters in message
            WebApiUtil.setError(400, "Error with special chars: àáâãäåæçèéêë ñ 中文 🚀");

        } catch (Exception e) {
            fail("Error handling should work with edge cases: " + e.getMessage());
        }

@Retention(RUNTIME)
@Documented
@Constraint(validatedBy = CustomSizeValidator.class)
public @interface CustomSize {

    /**
     * The error message when validation fails.
     * @return the error message
     */
    String message() default "{jakarta.validation.constraints.Size.message}";

    /**
     * The validation groups this constraint belongs to.
     * @return the groups

        // Test RuntimeException
        RuntimeException runtimeEx = new RuntimeException("Runtime error");
        assertEquals("Runtime error", runtimeEx.getMessage());

        // Test Exception
        Exception generalEx = new Exception("General error");
        assertEquals("General error", generalEx.getMessage());

        // Test with null message

        super();
    }

    /** The URL that failed during crawling */
    public String url;

    /** Minimum error count filter */
    public Integer errorCountMin;

    /** Maximum error count filter */
    public Integer errorCountMax;

    /** Name or type of the error */
    public String errorName;

     */
    @Required
    public String url;

    /**
     * The name of the crawler thread that encountered the failure.
     * This is a required field used for identifying which crawler process failed.
     */
    @Required
    public String threadName;

    /**
     * The name or type of the error that occurred.

    @Test
    public void test_expired_withEvents_drainsBuffer() {
        // Add events to buffer
        ComponentUtil.getLogNotificationHelper()
                .offer(new LogNotificationEvent(System.currentTimeMillis(), "ERROR", "org.test", "msg1", null));
        ComponentUtil.getLogNotificationHelper()
                .offer(new LogNotificationEvent(System.currentTimeMillis(), "WARN", "org.test", "msg2", null));

        List<Map<String, Object>> logs = JsonPath.from(response).getList("response.logs");

        logger.info("Filtered logs by error count: {}", logs);

        logger.info("[END] testSearchByErrorCount");
    }

    /**
     * Test: Search failure URL logs by error name
     */
    private void testSearchByErrorName() {
        logger.info("[BEGIN] testSearchByErrorName");

        // Execute
        String result = purgeLogJob.execute();

        // Assert all error messages in result
        assertTrue(result.contains("Crawling error"));
        assertTrue(result.contains("Search error"));
        assertTrue(result.contains("Job error"));
        assertTrue(result.contains("Status error"));
    }

    // Test mixed success and skip
    @Test