Testing Strategies

Write tests that catch bugs, not tests that waste time

This skill provides strategies for effective testing at all levels, from unit to end-to-end.

Core Principles

1. Tests Are Documentation

Good tests explain what the code should do. They're living documentation that can't go stale.

2. Test Behavior, Not Implementation

Tests should verify outcomes, not internal details. Implementation can change; behavior shouldn't.

3. Fast Feedback Loops

Most tests should run in seconds, not minutes. Save slow tests for CI.

The Testing Pyramid