public void TestStatusChangeAccept()
{
var medicalCode = "ABC123";
var infectedStatusId = 1;
var repository = ServiceProvider.GetService <IStatusChangeRepository>();
var changeRequest = new StatusChangeRequest(infectedStatusId, new DateTime(2020, 4, 1), "Comment");
Assert.That(repository.TryCreateChangeRequest(medicalCode, changeRequest, "medicalUserToken"),
Is.True, "Creating a new code is successful");
Assert.That(repository.TryAcceptChangeRequest(medicalCode + "invalid", 24),
Is.EqualTo(AcceptChangeResponse.Error(AcceptChangeResult.MissingCode)), "Accepting with missing code fails");
Assert.That(repository.TryAcceptChangeRequest(medicalCode, 0),
Is.EqualTo(AcceptChangeResponse.Error(AcceptChangeResult.ExpiredCode)), "Accepting after expiration fails");
Assert.That(repository.TryAcceptChangeRequest(medicalCode, 24),
Is.EqualTo(AcceptChangeResponse.Success(infectedStatusId, changeRequest.StatusChangedOn)),
"Accepting with good code succeeds");
// verify that AcceptedAt is set
var statusChange = new Table <StatusChange>(CassandraSession.Session)
.FirstOrDefault(row => row.MedicalCode == medicalCode)
.Execute();
Assert.That(statusChange.AcceptedAt, Is.Not.Null);
Assert.That(
repository.TryAcceptChangeRequest(medicalCode, 24),
Is.EqualTo(AcceptChangeResponse.Error(AcceptChangeResult.ReusedCode)), "Accepting with a taken code fails");
}
public AcceptChangeResponse TryAcceptChangeRequest(string medicalCode, int expirationHours)
{
var statusChange = new Table <StatusChange>(session)
.FirstOrDefault(row => row.MedicalCode == medicalCode)
.Execute();
if (statusChange == null)
{
return(AcceptChangeResponse.Error(AcceptChangeResult.MissingCode));
}
if (statusChange.AcceptedAt != null)
{
return(AcceptChangeResponse.Error(AcceptChangeResult.ReusedCode));
}
if (statusChange.CreatedAt.AddHours(expirationHours) < DateTime.UtcNow)
{
return(AcceptChangeResponse.Error(AcceptChangeResult.ExpiredCode));
}
// CosmosDB doesn't support this Lightweight Transaction
//return new Table<StatusChangeAccepted>(session)
// .Where(row => row.MedicalCode == medicalCode)
// .Select(row => new StatusChangeAccepted { AcceptedAt = DateTime.UtcNow })
// .UpdateIf(row => row.AcceptedAt == null)
// .Execute()
// .Applied;
new Table <StatusChangeAccepted>(session)
.Where(row => row.MedicalCode == medicalCode)
.Select(row => new StatusChangeAccepted {
AcceptedAt = DateTime.UtcNow
})
.Update()
.Execute();
return(AcceptChangeResponse.Success(statusChange.StatusId, statusChange.StatusChangedOn));
}