testing-anti-patterns

What problem does it solve?

Developers often fall into common traps when writing tests, such as testing mock behavior instead of real code, polluting production with test-only methods, or creating incomplete mocks. This skill identifies and helps avoid these anti-patterns, leading to more robust and reliable test suites.

Core Features & Use Cases

• Anti-Pattern Identification: Clearly defines and illustrates common testing anti-patterns like testing mock behavior, test-only methods in production, and mocking without understanding.
• Gate Functions & Fixes: Provides "gate functions" to pause and question problematic testing approaches, offering concrete fixes for each anti-pattern.
• TDD Integration: Explains how following Test-Driven Development (TDD) naturally prevents many of these anti-patterns, promoting better testing habits.
• Use Case: When reviewing a test suite or encountering flaky tests, use this skill to identify and correct anti-patterns, ensuring tests verify real behavior and provide true confidence.

Quick Start

I'm reviewing a test. Does this test for mock behavior or real component behavior?