public When_Recording_Referrals_And_Emails_Sent_Is_Loaded()
{
var config = new MapperConfiguration(c => c.AddMaps(typeof(SentViewModelMapper).Assembly));
var mapper = new Mapper(config);
var dto = new ValidOpportunityDtoBuilder().Build();
_employerCrmId = dto.EmployerCrmId;
_opportunityService = Substitute.For <IOpportunityService>();
_opportunityService.GetOpportunityAsync(1).Returns(dto);
var opportunityController = new OpportunityController(_opportunityService, mapper);
var controllerWithClaims = new ClaimsBuilder <OpportunityController>(opportunityController)
.AddUserName("CreatedBy")
.Build();
_result = controllerWithClaims.GetReferralEmailSentAsync(1).GetAwaiter().GetResult();
}