Robotics Testing

If you're writing tests for robot code, this skill gives you the full stack: unit tests for ROS nodes with pytest fixtures, integration tests with launch_testing, mocking hardware for CI/CD, and simulation-based suites. The pyramid diagram alone is worth it, showing how to balance fast deterministic unit tests against expensive field tests. I like the property-based testing examples with Hypothesis for things like trajectory interpolation and quaternion math, where random inputs catch edge cases you'd never think to write by hand. Covers the annoying stuff too like flaky test debugging and deterministic replay for non-deterministic robotics code.