public void Arrange() { var fixture = new Fixture() .Customize(new AutoMoqCustomization { ConfigureMembers = true }); _reservation = fixture.Create <GetReservationResponse>(); _employer = fixture.Create <Employer>(); _providerPermissionService = new Mock <IProviderPermissionsService>(); _service = new ReservationAuthorisationService(_providerPermissionService.Object); _reservation.AccountLegalEntityId = _employer.AccountLegalEntityId; _providerPermissionService.Setup(s => s.GetTrustedEmployers(It.IsAny <uint>())) .ReturnsAsync(new List <Employer> { _employer }); }