A Thoughtful Approach to Open Source Testing

UnitSeeker is a carefully managed initiative to help Python* repositories establish testing infrastructure through semi-automated pull requests. The UnitSeeker project tracks all the pull requests, while CodeTestClub will become the collaborative space where developers come together to write actual unit tests for merged testing infrastructure.

This is not a bot mindlessly spamming repositories—it's a human-guided system designed to identify projects that genuinely need testing support and would benefit most from the contribution.

Project Statistics

30,680
Total Repositories
550
Total Pull Requests
478
Open PRs
24%
Merge Rate

Last updated: October 3, 2025 at 05:50 PM

Why UnitSeeker is Different

Human-Approved, Not Automated Spam

Every pull request is manually reviewed and approved before submission. We carefully select repositories that lack testing infrastructure and would meaningfully benefit from it, ensuring we're providing value rather than creating noise.

Semi-Automated with Claude Code

Pull requests are generated using a wrapper around Claude Code, combining AI capabilities with human oversight. This hybrid approach ensures quality while maintaining efficiency.

Personal, Constructive Engagement

All follow-up comments and responses to maintainer feedback are written personally, not generated by automation. We're committed to constructive dialogue and respectful collaboration with repository owners.

Infrastructure Only, Tests Come Later

PRs intentionally contain only testing infrastructure (pytest configuration, GitHub Actions, etc.) without initial unit tests. This makes them easier for maintainers to review and approve, while building a pipeline of repositories open to collaborative testing efforts through CodeTestClub.

Language Expansion Roadmap

We're starting with Python to refine the process, with plans to expand to other languages once we've successfully processed the initial batch of repositories.

Reproducible Testing Environments

We use Poetry or UV instead of pip because repeatable test environments are essential for reliable CI/CD pipelines. While we're hopeful pip will add lock file support in future versions, we need this capability today to ensure our contributions are reliable and maintainable.

The Vision

UnitSeeker is the first step in a larger mission: identifying repositories that need tests and setting up the infrastructure. CodeTestClub will be where the community comes together to actually write those tests, creating a sustainable pipeline for improving open-source software quality through collaborative effort.

Python Testing Resources

Curated guides and best practices for Python testing and dependency management

How To Run Pytest With Poetry

Learn how to integrate pytest with Poetry for streamlined testing workflows.

Python Dependency Locking

Understanding the importance of dependency locking for reproducible environments.

Python Unit Testing Best Practices

Essential best practices for writing effective and maintainable unit tests.

Test Python Code Like a Pro

Comprehensive guide to testing with Poetry, Tox, Nox, and CI/CD integration.

Dependency Management With Python Poetry

Complete guide to managing Python project dependencies using Poetry.

Setting Up Testing With Pytest and UV

Complete tutorial on setting up pytest testing workflow with UV package manager.

Python UV: The Next Generation Package Manager

Introduction to UV, a fast and modern Python package and project manager written in Rust.

Modern Python Setup Guide (2024)

Comprehensive guide to modern Python development setup including UV and best practices.

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Why Python First?

We're starting with Python to refine the process, with plans to expand to other languages once we've successfully processed the initial batch of repositories. Python's widespread adoption and testing ecosystem make it an ideal starting point for validating our approach.