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Found 175 Skills
Provides patterns for unit testing service layer with Mockito. Validates business logic in isolation by mocking dependencies. Use when testing 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.
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.
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
Expert in end-to-end testing with Playwright, the modern cross-browser testing framework. Specializes in test generation, page object patterns, visual regression testing, and CI/CD integration. Handles complex testing scenarios including authentication flows, API mocking, and mobile emulation.
Laravel 13 testing with Pest PHP 4 or PHPUnit 12. Use when writing feature tests, unit tests, or any test code in a Laravel application. Triggers on tasks involving HTTP tests, model factories, database assertions, mocking facades, authentication testing, or test organisation patterns.
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.
PHPUnit testing best practices and conventions guide. This skill should be used when writing, reviewing, or refactoring PHPUnit tests to ensure consistent, maintainable, and effective test suites. Triggers on tasks involving test creation, test refactoring, test configuration, code coverage, data providers, mocking, or PHPUnit XML configuration.
Test quality guard - prevents testing mock behavior, production pollution with test-only methods, and mocking without understanding dependencies.
Guides the agent through running and writing Python tests with pytest. Triggered when users say "run tests", "write a test", "test this function", "add unit tests", "run pytest", "check test coverage", "debug failing test", "create test fixtures", "mock a dependency", or mention pytest, pytest-asyncio, pytest-cov, testing, unit tests, integration tests, test coverage, or test-driven development.
Get best practices for JUnit 5 unit testing, including data-driven tests
Writes behavior-focused tests using Testing Trophy model with real dependencies. Use when writing tests, choosing test types, or avoiding anti-patterns like testing mocks.