public async void DeliveryService_AssignCourierToDeliveryAsync_throws_exception_when_delivery_with_specified_id_is_not_exists()
{
// Arrange
var dto = A.New <AssignCourierToDeliveryDtoSave>();
_deliveryRepository.Setup(x => x.GetDeliveryByIdAsync(dto.DeliveryId)).ReturnsAsync(() => null);
// Act
Func <Task> action = async() => { await _service.AssignCourierToDeliveryAsync(dto); };
// Assert
await action.Should().ThrowAsync <KeyNotFoundException>().WithMessage($"Delivery not found with specified Id: {dto.DeliveryId}");
_deliveryRepository.Verify(x => x.GetDeliveryByIdAsync(dto.DeliveryId), Times.Once());
}