public IEnumerable <ValidationResult> Validate(ValidationContext validationContext)
        {
            var validator = new StudentUpdateRequestDtoValidator();
            var result    = validator.Validate(this);

            return(result.Errors.Select(item => new ValidationResult(item.ErrorMessage, new[] { item.PropertyName })));
        }
 public StudentUpdateRequestValidatorTest()
 {
     validator = new StudentUpdateRequestDtoValidator();
 }