Unit Testing

Picks random winners from lists, spreadsheets, or Google Sheets for giveaways, raffles, and contests. Ensures fair, unbiased selection with transparency.

Testing and QA gate for Astro lead gen sites. Manual + E2E + A11y + Performance. FAIL = no deploy.

Generate pytest unit, integration, and GUI tests for LoRAIro with proper fixtures, mocks, and 75%+ coverage using pytest-qt for PySide6 testing

Develop, test, build, and deploy Godot 4.x games. Includes GdUnit4 for GDScript unit tests and PlayGodot for game automation and E2E testing. Supports web/desktop exports, CI/CD pipelines, and deployment to Vercel/GitHub Pages/itch.io.

How to make a good property-based test. Use when writing any property-based test.

PRIMARY expert for ALL NestJS and @lenne.tech/nest-server tasks. ALWAYS use this skill when working in projects with @lenne.tech/nest-server in package.json dependencies (supports monorepos with projects/*, packages/*, apps/* structure), or when asked about NestJS modules, services, controllers, resolvers, models, objects, tests, server creation, debugging, or any NestJS/nest-server development task. Handles lt server commands, security analysis, test creation, and all backend development. ALWAYS reads CrudService base class before working with Services.

Guided workflow for implementing features with quality gates. Use when building new features - includes spec, test-first, implementation, and verification steps.

Complete Software Development Life Cycle workflow for Linear issues. Coordinates requirements analysis, TDD setup, implementation, testing, and PR creation through agent chaining. Use when starting work on Linear issues, implementing features from Linear, or when user mentions SDLC workflow, Linear issue development, test-driven development, or feature implementation workflow.

Write pytest tests using Test-Driven Development (TDD). Use when implementing features, fixing bugs, or when the user mentions testing, TDD, or pytest. Tests should be written BEFORE implementation code.

Test Driven Development (TDD) workflow automation for Java Spring Boot projects. Use for writing tests, checking coverage, generating test scaffolds, and implementing Red-Green-Refactor cycles with JUnit 5, Mockito, and Testcontainers.

JSON-driven content architecture for services, programmes, FAQs, testimonials, and policies with TypeScript interfaces and locale-aware data fetching. Use when defining content schemas, creating data utilities, adding new content types, or fetching localized business data.

Docker containerization for packaging applications with dependencies into isolated, portable units ensuring consistency across development, testing, and production environments.

Generate a detailed test plan covering scenarios, environments, data, and reporting for the release.

Complete browser automation with Playwright. Auto-detects dev servers, writes clean test scripts to /tmp. Test pages, fill forms, take screenshots, check responsive design, validate UX, test login flows, check links, automate any browser task. Use when user wants to test websites, automate browser interactions, validate web functionality, or perform any browser-based testing.

Implement comprehensive testing strategies using Jest, Vitest, and Testing Library for unit tests, integration tests, and end-to-end testing with mocking, fixtures, and test-driven development. Use when writing JavaScript/TypeScript tests, setting up test infrastructure, or implementing TDD/BDD workflows.

Guides correct usage of @j0kz/mcp-agents standardization and automation scripts including version.json single source of truth, test count automation, URL casing rules, and critical workflow pattern...

Use this skill when developing Streamlit applications with uv package manager. Covers project setup, running apps, testing (unit/e2e), and development workflows. Trigger when user mentions "streamlit", "uv run streamlit", "streamlit testing", or asks about building data apps with Python.

E2E testing skill for Pawel Lipowczan portfolio project (Playwright + React/Vite). Use when user wants to create new E2E tests, debug flaky tests, extend test coverage, verify test completeness for features, or run/interpret test results. Covers navigation, forms, blog, SEO, accessibility (WCAG 2.1 AA), responsiveness. References docs/portfolio/testing/{README.md,TESTING_QUICKSTART.md}. Complements portfolio-code-review skill.

Use when implementing in-app purchases, StoreKit 2 subscriptions, consumables, non-consumables, or transaction handling. Covers testing-first workflow with .storekit configuration, StoreManager architecture, and transaction verification.

Python testing best practices with pytest. Covers unit, integration, async tests, mocking, fixtures.Triggers: "напиши тесты", "write tests", "add tests", "test coverage", "pytest"