public async Task FailedToSaveNewSupplier_AddSupplier_ReturnBadRequest() { var supplierModel = new SupplierModel(); var response = await _suppliersController.AddSupplier(supplierModel); Assert.IsType <ActionResult <SupplierModel> >(response); Assert.IsType <BadRequestResult>(response.Result); _supplierService.Verify(s => s.Add(It.IsAny <Supplier>())); }