Pytest Databases

October 2, 2025 ยท View on GitHub

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Pytest Databases

Ready-made database fixtures for your pytest tests.

Features

  • ๐Ÿš€ Easy-to-use database fixtures
  • ๐Ÿ”„ Support for multiple database types
  • ๐Ÿณ Docker integration for isolated testing environments
  • โšก Fast and efficient test execution
  • ๐Ÿ”ง Highly configurable

pytest-databases uses the Docker Python SDK to manage the startup and shutdown of database services in containers. The following databases are currently available:

  • Postgres: Version 12, 13, 14, 15, 16, 17 and 18 are available
  • MySQL: Version 5.6, 5.7 and 8 are available
  • Oracle: Version 18c XE and 23C Free are available
  • SQL Server: Version 2022 is available
  • Google AlloyDB Omni: Simplified Omni installation for easy testing.
  • Google Spanner: The latest cloud-emulator from Google is available
  • Google BigQuery: Unofficial BigQuery emulator
  • CockroachDB: Version latest is available
  • Redis: Latest version
  • Valkey: Latest version
  • Dragonfly: Latest version
  • KeyDB: Latest version
  • Elasticsearch: Version 7 and 8 are available
  • Azure blob storage: Via azurite
  • Minio: Latest version

Installation

Quick install for postgres:

pip install pytest-databases[postgres]

Quick Start

  • Add to your pytest conftest.py:
pytest_plugins = ["pytest_databases.docker.postgres"]
  • Use in your tests:
from pytest_databases.docker.postgres import PostgresService
import psycopg

def test_one(postgres_service: PostgresService) -> None:
    with psycopg.connect(
        f"postgresql://{postgres_service.user}:{postgres_service.password}@{postgres_service.host}:{postgres_service.port}/{postgres_service.database}",
        autocommit=True,
    ) as conn:
        result = conn.execute("SELECT 1")
        assert result

Documentation

Full documentation is available at https://litestar-org.github.io/pytest-databases/latest/

Contributing

Contributions are welcome! Please read our Contributing Guide for details on our code of conduct and the process for submitting pull requests.

License

This project is licensed under the MIT License - see the LICENSE file for details.

Acknowledgments

  • The Litestar Framework team
  • The pytest community