all = append(all, instances...)
	}
	return all
}

// deleteInstanceKeys deletes all instances with the given configKey and instanceKey
// Note: as a convenience, this takes a []ServiceInstance instead of []instanceKey, as most callers have this format
// However, this function only operates on the instance keys
func (s *serviceInstancesStore) deleteInstanceKeys(key configKeyWithParent, instances []*model.ServiceInstance) {

	gotSeInstances = store.getServiceEntryInstances(key)
	if len(gotSeInstances) != 0 {
		t.Errorf("got unexpected instances %v", gotSeInstances)
	}

	// 7. test deleteInstanceKeys
	store.deleteInstanceKeys(cpKey, instances)
	gotInstances = store.getAll()
	if len(gotInstances) != 0 {
		t.Errorf("got unexpected instances %v", gotSeInstances)
	}
}

func TestServiceStore(t *testing.T) {

			configKey: key,
			parent:    namespacedName,
		}
		if event == model.EventDelete {
			s.serviceInstances.deleteServiceEntryInstances(namespacedName, key)
			s.serviceInstances.deleteInstanceKeys(parentKey, instancesUpdated)
		} else {
			s.serviceInstances.updateInstances(parentKey, instancesUpdated)
			s.serviceInstances.updateServiceEntryInstancesPerConfig(namespacedName, key, instance)
		}