AI-generated tests with Dagster Skills

Testing is essential for building reliable data pipelines, but writing tests often falls by the wayside when deadlines loom. The Dagster Skills project makes it easier to integrate test creation into your development workflow by providing AI assistant skills that generate tests following best practices.

Why learn the fundamentals first?

The testing patterns and best practices covered in this course—unit testing, mocking, integration testing, and asset checks—are programmed directly into the Dagster Skills. When you use these AI tools, they apply the same principles you've learned here.

Understanding these fundamentals helps you:

  • Review AI-generated tests effectively — You'll know what good tests look like and can spot issues
  • Customize tests for your needs — AI provides a starting point, but business logic nuances require human judgment
  • Debug when things go wrong — Knowing how materialize(), output_for_node(), and mock resources work helps you troubleshoot

That said, once you understand the fundamentals, Dagster Skills can significantly accelerate your workflow by generating test scaffolding and boilerplate for you.

Compatible tools

Dagster Skills is compatible with:

  • Claude Code
  • OpenCode
  • OpenAI Codex
  • Pi
  • Other Agent Skills-compatible tools

Generating tests

Once installed, you can ask your AI assistant to generate tests for your assets. The AI will analyze your code and generate tests that follow the patterns from this course:

  • Proper use of materialize() for executing assets
  • Assertions using output_for_node() to verify outputs
  • Mock resources for external dependencies
  • Fixtures for test data isolation
  • Asset check validations

Dagster Skills helps you integrate testing into your workflow by generating test scaffolding that follows the same patterns taught in this course. While AI accelerates the process, the fundamentals you've learned ensure you can review, customize, and maintain those tests effectively.

For more information, visit the Dagster Skills repository.