Browse QA Skills

Rails application testing with RSpec, FactoryBot, Capybara, system tests, request specs, model specs, and Rails-specific testing conventions.

Test LLM applications with DeepEval, pytest-style unit tests for LLM outputs using G-Eval, answer relevancy, faithfulness, hallucination and custom metrics, with CI quality gates and dataset-driven regression runs.

Vue.js component testing using Vue Test Utils with mount/shallow mount, event simulation, Vuex/Pinia store testing, and composition API testing.

Test-Driven Development mastery with red-green-refactor cycle, outside-in TDD, test-first design, and incremental development patterns.

Testing patterns for autonomous AI coding agents like Devin and SWE-Agent including task verification, output validation, sandboxed execution, regression testing for agent behavior, and safety guardrails for autonomous code generation.

Testing concurrent code including race condition detection, deadlock prevention, thread safety verification, and parallel execution correctness.

Comprehensive Ruby testing with RSpec including describe/context/it blocks, matchers, let/before hooks, mocking with doubles, shared examples, and Rails integration.

Building test reporting dashboards with real-time execution metrics, trend analysis, flaky test detection, coverage visualization, and integration with Allure, ReportPortal, and custom dashboards using Grafana and Prometheus.

Test framework migration skill covering strategies for migrating between testing frameworks including Selenium to Playwright, Jest to Vitest, Enzyme to React Testing Library, and Protractor to Cypress with automated codemods and incremental migration patterns.

Rust testing with built-in test framework, integration tests, doc tests, property-based testing with proptest, and cargo test configuration.

Fast test execution with Bun's built-in test runner including snapshot testing, mocking, code coverage, lifecycle hooks, DOM testing with happy-dom, and migration from Jest and Vitest to Bun test.

Expert-level Codeception testing skill for PHP applications. Covers acceptance, functional, and unit testing with the Actor pattern, BDD-style syntax, Page Objects, API testing, and database helpers.

Test fixture design patterns including builders, factories, object mothers, and fixture management for maintainable test data setup.

FastAPI application testing with TestClient, dependency injection overrides, async testing, database testing with SQLAlchemy, and OpenAPI validation.

Testing patterns for Clerk authentication including sign-in flow testing, protected route testing, webhook verification, middleware testing, and organization-based access control

Component testing patterns with Cypress v14 including React, Vue, and Angular component mounting, custom mount commands, interaction testing, visual snapshots, and integration with Vite and Webpack bundlers.

Optimizing test coverage beyond line coverage including branch coverage, mutation score, path coverage, and identifying meaningful coverage gaps.

Modern JavaScript testing strategies with Jest, Mocha, and testing best practices covering unit testing, integration testing, mocking, async patterns, and DOM testing.

Comprehensive SDET interview preparation covering coding challenges, system design for testing, automation framework design, CI/CD pipeline questions, testing strategy discussions, and behavioral interview patterns for QA engineering roles.