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from asyncio import sleep
from dataclasses import dataclass
from uuid import UUID
from polyfactory import AsyncPersistenceProtocol, SyncPersistenceProtocol
from polyfactory.factories import DataclassFactory
@dataclass
class Person:
id: UUID
name: str
# we will use a dictionary to persist values for the example
mock_db: dict[UUID, Person] = {}
class SyncPersistenceHandler(SyncPersistenceProtocol[Person]):
def save(self, data: Person) -> Person:
# do stuff here to persist the value, such as use an ORM or ODM, cache in redis etc.
# in our case we simply save it in the dictionary.
mock_db[data.id] = data
return data
def save_many(self, data: list[Person]) -> list[Person]:
# same as for save, here we should store the list in persistence.
# in this case, we use the same dictionary.
for person in data:
mock_db[person.id] = person
return data
class AsyncPersistenceHandler(AsyncPersistenceProtocol[Person]):
async def save(self, data: Person) -> Person:
# do stuff here to persist the value using an async method, such as an async ORM or ODM.
# in our case we simply save it in the dictionary and add a minimal sleep to mock async.
mock_db[data.id] = data
await sleep(0.0001)
return data
async def save_many(self, data: list[Person]) -> list[Person]:
# same as for the async save, here we should store the list in persistence using async logic.
# we again store in dict, and mock async using sleep.
for person in data:
mock_db[person.id] = person
await sleep(0.0001)
return data
class PersonFactory(DataclassFactory[Person]):
__sync_persistence__ = SyncPersistenceHandler
__async_persistence__ = AsyncPersistenceHandler
def test_sync_persistence_build() -> None:
person_instance = PersonFactory.create_sync()
assert mock_db[person_instance.id] is person_instance
def test_sync_persistence_batch() -> None:
person_batch = PersonFactory.create_batch_sync(10)
for person_instance in person_batch:
assert mock_db[person_instance.id] is person_instance
async def test_async_persistence_build() -> None:
person_instance = await PersonFactory.create_async()
assert mock_db[person_instance.id] is person_instance
async def test_async_persistence_batch() -> None:
person_batch = await PersonFactory.create_batch_async(10)
for person_instance in person_batch:
assert mock_db[person_instance.id] is person_instance
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