testing

Write and stabilize unit and integration tests across languages.

Updated Jan 9, 2026

Search Tags:#unit-testing #integration-testing #determinism #flaky-tests #testing-policy #state-capsule

Ready to run

npx skills add https://github.com/bnufw/lear_by_ai --skill testing-bnufw

💬 Prompt for ChatGPT / Claude Chat▼

Please help me install this Agent Skill.
Skill: testing
Source: https://github.com/bnufw/lear_by_ai/tree/main/.codex/skills/testing
Command: npx skills add https://github.com/bnufw/lear_by_ai --skill testing-bnufw

SYSTEM DOCUMENTATION & REQUIREMENTS

What problem does it solve?

This section helps teams define and maintain reliable unit and integration tests across languages, using project-independent best practices to reduce flaky tests and speed up debugging.

Core Features & Use Cases

Establish deterministic testing guidelines that work across common frameworks.
Triage failures and flakes with a repeatable, audit-friendly process.
Maintain a compact Testing State Capsule to track decisions, assumptions, and test progress during interactions.

Quick Start

Create a minimal unit test for a pure function following the project’s testing policy and update the Testing State Capsule.

Frequently Asked Questions about testing

High-intent search queries and answers about installing and using this skill.

FAQPage Schema

How do I fix flaky tests in my integration testing suite?▼

To fix flaky tests, follow a repeatable triage process that enforces deterministic, isolated integration testing by eliminating external network calls and managing state properly to ensure consistent results.

What are the best practices for writing deterministic unit tests?▼

Deterministic unit tests require strict isolation with no external network calls, adherence to the project's testing policy, and maintaining a compact state capsule to track assumptions and ensure repeatable outcomes.

How do I create a test plan for a new feature across different frameworks?▼

You can create a test plan using project-independent best practices and templates that guide unit and integration testing setups across common frameworks while maintaining a tracked testing state capsule.

Does this testing approach work for any programming language?▼

Yes, this approach establishes project-independent testing guidelines and best practices designed to help developers write and stabilize unit and integration tests across multiple languages.

Why do my unit tests fail randomly even without code changes?▼

Unit tests fail randomly when they lack determinism and isolation, often due to hidden external network calls or shared state; enforcing a strict testing policy and a state capsule stabilizes them.

How do I maintain test progress and assumptions during a long debugging task?▼

You maintain test progress by using a compact Testing State Capsule within conversations to track decisions, assumptions, and triage steps, ensuring an audit-friendly debugging process.