public void Set_ThrowsException_WhenContextAlreadySet()
{
// Arrange
var expectedContext = new ExaminationValidationContext(null);
var sut = new ExaminationValidationContextProvider();
sut.Set(expectedContext);
// Act
Action act = () => sut.Set(expectedContext);
// Assert
act.Should().Throw <InvalidOperationException>();
}
public void Current_ReturnsContext_WhenNotNull()
{
// Arrange
var expectedContext = new ExaminationValidationContext(null);
var sut = new ExaminationValidationContextProvider();
sut.Set(expectedContext);
// Act
var result = sut.Current;
// Assert
result.Should().Be(expectedContext);
}
/// <summary>
/// returns if the nhs number provided is valid.
/// </summary>
/// <param name="value"></param>
/// <param name="examinationValidationContext"></param>
/// <param name="validationContext"></param>
/// <returns cref="ValidationResult"></returns>
/// <exception cref="NullReferenceException"></exception>
protected override ValidationResult IsValid(object value, ExaminationValidationContext examinationValidationContext, ValidationContext validationContext)
{
var thing = examinationValidationContext.Examination;
var nhsNumber = value as string;
if (string.IsNullOrEmpty(nhsNumber))
{
return(ValidationResult.Success);
}
var examinationPersistence = (IAsyncQueryHandler <DuplicateExaminationByNhsNumberRetrievalQuery, Examination>)validationContext.GetService(typeof(IAsyncQueryHandler <DuplicateExaminationByNhsNumberRetrievalQuery, Examination>));
if (examinationPersistence == null)
{
throw new NullReferenceException("examination persistence is null");
}
var possibleExamination = examinationPersistence.Handle(new DuplicateExaminationByNhsNumberRetrievalQuery(nhsNumber)).Result;
return(possibleExamination != null && examinationValidationContext.Examination.ExaminationId != possibleExamination.ExaminationId
? new ValidationResult(SystemValidationErrors.Duplicate.ToString())
: ValidationResult.Success);
}
