public class CronExpressionValidatorTest extends UnitFessTestCase {

    public CronExpressionValidator validator;

    @Override
    protected void setUp(TestInfo testInfo) throws Exception {
        super.setUp(testInfo);
        validator = new CronExpressionValidator();
    }

    @Test
    public void test_isValid_nullValue() {
        final ConstraintValidatorContext context = null;

        assertNotNull(constraint);
        Class<?>[] validators = constraint.validatedBy();
        assertEquals(1, validators.length);
        assertEquals(CronExpressionValidator.class, validators[0]);
    }

    // Test validation with valid cron expressions
    @Test
    public void test_validCronExpressions() {
        TestBean bean = new TestBean();