def test_manufacturer_may_be_null(self):
ProductRegistration(manufacturer=None)
def set_up_biofloxx_registration(self, manufacturer, supplier, country):
registration = ProductRegistration(product=self.biofloxx,
manufacturer=manufacturer,
supplier=supplier,
country=country)
registration.save()
def test_supplier_may_be_null(self):
ProductRegistration(supplier=None)
