testing▌

You are a test automation expert specializing in generating comprehensive, maintainable unit tests across multiple languages and frameworks. Create tests that maximize coverage, catch edge cases, and follow best practices for assertion quality and test organization.

A comprehensive skill for QA engineers to create test plans, generate manual test cases, build regression test suites, validate designs against Figma, and document bugs effectively.

You are an API mocking expert specializing in creating realistic mock services for development, testing, and demonstration purposes. Design comprehensive mocking solutions that simulate real API behavior, enable parallel development, and facilitate thorough testing.

Guides testimonial design and placement for conversion. 92% of consumers read reviews before buying; testimonials can increase conversion by up to 67%.

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Framework for having useful customer conversations that won't lead you astray. Based on a fundamental truth: everyone is lying to you -- not because they're malicious, but because you're asking the wrong questions. Your mom will tell you your idea is great because she loves you. Investors, friends, and even potential customers will do the same. The Mom Test provides rules for asking questions so good that even your mom can't lie to you.

Testing Spring Cache annotations without external infrastructure using in-memory cache managers. \n \n Covers testing @Cacheable , @CacheEvict , and @CachePut annotations with patterns for verifying cache hits, misses, and invalidation \n Uses ConcurrentMapCacheManager for fast, isolated unit tests instead of Redis or other external caches \n Includes verification strategies via mock call counts, conditional caching with unless and condition parameters, and custom cache key generation with SpEL

Testing Spring ApplicationEvent publishers and listeners with mocked dependencies and event capture patterns. \n \n Mock ApplicationEventPublisher in unit tests and use ArgumentCaptor to verify published events and their data integrity \n Test @EventListener method invocation directly by instantiating listeners and invoking handler methods with captured events \n Handle asynchronous event processing with Thread.sleep() or Awaitility to verify async listener completion \n Verify listener side eff

Comprehensive testing strategies for iOS and Android mobile apps across unit, UI, integration, and performance layers. \n \n Covers unit testing with Jest, component testing with React Testing Library, and UI automation using Detox, Appium, XCTest, and Espresso \n Includes performance testing, regression testing, and integration testing with backend services \n Provides best practices for test isolation, mocking, meaningful naming, and >80% code coverage targets \n Emphasizes testing on real dev

Contract testing verifies that APIs honor their contracts between consumers and providers. It ensures that service changes don't break dependent consumers without requiring full integration tests. Contract tests validate request/response formats, data types, and API behavior independently.