public When_Opportunity_Controller_Delete_Referral() { var config = new MapperConfiguration(c => c.AddMaps(typeof(CheckAnswersDtoMapper).Assembly)); var mapper = new Mapper(config); _opportunityService = Substitute.For <IOpportunityService>(); var opportunityController = new OpportunityController(_opportunityService, mapper); var controllerWithClaims = new ClaimsBuilder <OpportunityController>(opportunityController) .AddUserName("CreatedBy") .Build(); _result = controllerWithClaims.DeleteReferralAsync(ReferralIdToDelete, OpportunityItemId).GetAwaiter().GetResult(); }