public void SiteOfTreatmentNotSet_HasValidationError() { var facilityCollection = new FacilityCollection { Facilities = new List <Facility>() { new Facility(AnyGuid) { IsActualSite = false }, new Facility(AnyGuid) { IsActualSite = false } } }; validator.ShouldHaveValidationErrorFor(x => x.Facilities, facilityCollection); }