What are Incomplete Mocks and why are they dangerous?

Incomplete mocks only include fields known at the time of testing. They are dangerous because they can lead to tests passing while integration fails when downstream code attempts to access missing fields.

What is the main goal of the Testing Anti-Patterns skill?

Its primary goal is to ensure tests verify real system behavior rather than just confirming that mocks were called, leading to more resilient and trustworthy test suites.

How does this skill handle mocking logic?

It provides gate functions that prompt you to understand the side effects of a method before mocking it, ensuring you mock at the correct level of abstraction or use integration tests instead.

Why shouldn't I add test-only methods to production code?

Adding test-only methods pollutes your production API, violates the principle of separation of concerns, and can lead to dangerous accidental calls in a live environment.

Testing Anti-Patterns

Name: Testing Anti-Patterns
Author: franroa

byfranroa

安全与测试

Enforces high-quality testing standards by preventing mock-behavior testing and production code pollution.

关于

This skill acts as a specialized guardrail for developers to ensure test suites are resilient, meaningful, and maintainable. It identifies and prevents critical testing mistakes, such as asserting on mock existence rather than real behavior, polluting production classes with test-specific methods, and creating incomplete mocks that lead to integration failures. By utilizing structured 'Gate Functions' and enforcing strict TDD principles, this skill helps developers write tests that verify actual logic while maintaining a clean separation between production code and test utilities.

主要功能

Prevents assertions on mock behavior to ensure tests verify real logic
Enforces complete data structure mirroring for API mocks to avoid silent failures
Identifies and blocks the addition of test-only methods to production classes
Provides Gate Functions to evaluate the necessity and depth of mocks
Promotes strict TDD cycles to catch architectural flaws early
0 GitHub stars

使用场景

Ensuring production classes remain clean and free of test-specific lifecycle methods
Reviewing existing test suites to identify and refactor fragile or 'fake' tests
Guidance on when to use integration tests versus complex mock setups

关于

主要功能

Prevents assertions on mock behavior to ensure tests verify real logic
Enforces complete data structure mirroring for API mocks to avoid silent failures
Identifies and blocks the addition of test-only methods to production classes
Provides Gate Functions to evaluate the necessity and depth of mocks
Promotes strict TDD cycles to catch architectural flaws early
0 GitHub stars

使用场景

Ensuring production classes remain clean and free of test-specific lifecycle methods
Reviewing existing test suites to identify and refactor fragile or 'fake' tests
Guidance on when to use integration tests versus complex mock setups