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Found 209 Skills
Guide for testing Shopify Apps, including Unit Testing with Remix, Mocking Shopify Context, and E2E Testing.
Write and review unit tests for Vue 3 + TypeScript + Vitest + Pinia codebases. Use when creating or updating tests for components, composables, and stores; mocking Pinia with createTestingPinia; applying Vue Test Utils patterns; and enforcing black-box assertions over implementation details.
Spring Boot testing fundamentals including @SpringBootTest, slice tests, MockMvc, mocking with @MockBean, test configuration, and testing utilities. For integration tests with Testcontainers, see spring-boot-integration. USE WHEN: user mentions "spring boot test", "mockmvc", "@WebMvcTest", "@DataJpaTest", asks about "@SpringBootTest", "@MockBean", "spring test", "controller test", "repository test" DO NOT USE FOR: Unit tests - use `junit` with Mockito; Integration tests with real DB - use `spring-boot-integration`; REST API clients - use `rest-assured`; E2E tests - use Selenium
Unit tests for service layer with Mockito. Test business logic in isolation by mocking dependencies. Use when validating service behaviors and business logic without database or external services.
Testing use cases and application services: use case testing with mocked gateways, DTO testing, application exception testing, orchestration testing, mocking at adapter boundaries. Coverage target: 85-90%. Use when: Testing use cases, testing application services, testing DTOs and data transformation, testing error handling in use cases, mocking external dependencies at layer boundaries.
Deep dive on table-driven tests in Go: when to use them, when to avoid them, struct design, subtest naming, advanced patterns like test matrices and shared setup, and refactoring bloated tables into clean ones. Use when writing table-driven tests, refactoring test tables, reviewing table test structure, or deciding whether table-driven is the right approach. Trigger examples: "table-driven test", "table test", "test cases struct", "test matrix", "parametrize tests", "data-driven test", "refactor test table". Do NOT use for general test strategy, mocking, golden files, or fuzz testing (use go-test-quality). Do NOT use for benchmarks (use go-performance-review).
TypeScript testing patterns with Jest/Vitest including unit tests, integration tests, mocking strategies, and coverage. Use when writing or running TypeScript tests.
Patrons et stratégies de test complets pour les projets JavaScript/TypeScript. Couvre les tests unitaires, d'intégration et E2E, les stratégies de mocking, l'organisation des tests et les anti-patrons courants. À utiliser quand l'utilisateur veut écrire des tests, améliorer la couverture de tests, établir une stratégie de test ou corriger des tests instables.
Use when the user needs Playwright-based web application testing — screenshots, browser log analysis, interaction verification, visual regression, accessibility, and network mocking. Triggers: E2E test setup, visual regression testing, accessibility audit, Playwright configuration, page object model creation, CI test pipeline.
Use when writing or changing tests, adding mocks, or tempted to add test-only methods to production code - prevents testing mock behavior, production pollution with test-only methods, and mocking without understanding dependencies
TanStack Query v5 performance optimization for data fetching, caching, mutations, and query patterns. This skill should be used when using useQuery, useMutation, queryClient, prefetch patterns, or TanStack Query caching. This skill does NOT cover generating query hooks from OpenAPI (use orval skill) or mocking API responses in tests (use test-msw skill).
Use this skill when you need to write, review, or debug automated tests for applications built on the Jazz framework. This skill provides the correct architectural patterns for simulating local-first synchronization and multi-user environments without resorting to invalid mocking strategies.