async-factory-boy
factory_boy extension with asynchronous ORM support
Decision gist · record as of 2026-08-14
Yes, if you are writing async tests for SQLAlchemy or Tortoise ORM and want to avoid sync-to-async bridging in your factories. The low install friction and permissive license are favorable. However, dormant maintenance (last release August 2023, last commit June 2024) means you should verify compatibility with your ORM versions and be prepared to fork or patch if issues arise. No known vulnerabilities.AI-flagged interpretation of the facts on this page — verify before relying
Before you install
- Requires Python 3.8 or later; async/await syntax is mandatory for usage.
- Low install friction with a single dependency on factory-boy.
- Maintenance is dormant—last commit was 2024-06-12 and no releases since 2023-08-12—so expect no active bug fixes or feature updates, though the codebase is not archived.
License · maintenance · safety
MIT (permissive) — MIT license is permissive; you can use, modify, and distribute this package with minimal legal friction.
last release 2023-08-12 (1098 days) · last repo commit 2024-06-12 · 25 stars
0 known vulnerabilities (OSV.dev, 2026-08-14) · 199,223 downloads/mo, #9,713 on PyPI
Alternatives
Verify before relying
pip install async_factory_boy
from async_factory_boy.factory.sqlalchemy import AsyncSQLAlchemyFactory
class TestModelFactory(AsyncSQLAlchemyFactory):
class Meta:
model = TestModel
session = session
name = Faker("name")
test = await TestModelFactory.create()- Whether the package works with current versions of SQLAlchemy's async API (sqlalchemy.ext.asyncio) or only legacy async patterns.
- Whether Tortoise ORM support is actively maintained or if breaking changes in Tortoise have introduced compatibility issues.
- Real-world test coverage and whether dormancy signals unresolved issues or simply stable, complete functionality.
What it is and what it does
async_factory_boy is a factory_boy extension that wraps asynchronous ORM operations, letting you define test fixtures for SQLAlchemy and Tortoise ORM using async/await syntax. Instead of blocking database calls in your test factories, you call `await TestModelFactory.create()` or `await TestModelFactory.build()` to generate test data asynchronously.
The package works by subclassing factory_boy's Factory and providing ORM-specific variants (AsyncSQLAlchemyFactory, AsyncTortoiseFactory) that handle async session management. It integrates with factory_boy's Faker support for generating realistic field values. The single runtime dependency is factory-boy itself, making installation straightforward.
Use it for
- Generate test data in async test suites without blocking the event loop or wrapping factories in sync wrappers.
- Build SQLAlchemy async session fixtures for pytest-asyncio or similar async test frameworks.
- Create Tortoise ORM test models in async test code without falling back to synchronous factory patterns.
- Populate test databases in async integration tests where the application code is fully async.
- Reduce boilerplate in async test setup by reusing factory definitions across multiple test modules.
Worth the install?
AI-flagged interpretation of the facts on this page. Verify before relying on it.
Yes, if you are writing async tests for SQLAlchemy or Tortoise ORM and want to avoid sync-to-async bridging in your factories.
The low install friction and permissive license are favorable. However, dormant maintenance (last release August 2023, last commit June 2024) means you should verify compatibility with your ORM versions and be prepared to fork or patch if issues arise. No known vulnerabilities.
Install
async-factory-boy on PyPI
Before you install
Low install friction with a single dependency on factory-boy. Maintenance is dormant—last commit was 2024-06-12 and no releases since 2023-08-12—so expect no active bug fixes or feature updates, though the codebase is not archived.
Requires Python 3.8 or later; async/await syntax is mandatory for usage.
License in practice
MIT license is permissive; you can use, modify, and distribute this package with minimal legal friction.
Quickstart
pip install async_factory_boy
from async_factory_boy.factory.sqlalchemy import AsyncSQLAlchemyFactory
class TestModelFactory(AsyncSQLAlchemyFactory):
class Meta:
model = TestModel
session = session
name = Faker("name")
test = await TestModelFactory.create()Verify before relying
- Whether the package works with current versions of SQLAlchemy's async API (sqlalchemy.ext.asyncio) or only legacy async patterns.
- Whether Tortoise ORM support is actively maintained or if breaking changes in Tortoise have introduced compatibility issues.
- Real-world test coverage and whether dormancy signals unresolved issues or simply stable, complete functionality.
Package facts
| License | MIT permissive |
| Python support | Supports the current Python release >=3.7 |
| Install friction | Low. Pure-Python wheel |
| Runtime dependencies | 1 packagefactory-boy |
| Maintenance | Dormant 1,098 days since the last release |
| Last repo commit | |
| First released | |
| Downloads | 199,223 / month, #9,713 on PyPI 30-day window, as of 2026-08-14 |
| Known vulnerabilities | None known OSV.dev, checked 2026-08-14 |
| Classifiers | Development Status :: 5 - Production/StableIntended Audience :: DevelopersLicense :: OSI Approved :: MIT LicenseOperating System :: OS IndependentProgramming Language :: PythonProgramming Language :: Python :: 3Programming Language :: Python :: 3 :: OnlyProgramming Language :: Python :: 3.10Programming Language :: Python :: 3.8Programming Language :: Python :: 3.9Programming Language :: Python :: Implementation :: CPythonProgramming Language :: Python :: Implementation :: PyPyTopic :: Software Development :: Libraries :: Python ModulesTopic :: Software Development :: Testing |
Evidence: async_factory_boy-1.0.1-py2.py3-none-any.whl
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See also factory-boy · pytest-factoryboy · mixer · tortoise-orm · wagtail-factories · model-mommy · pypika-tortoise · ormar · testing.common.database · sqlalchemy-mixins