effect.ts-testing

What problem does it solve?

This Skill teaches AI assistants how to properly test Effect.ts code, specifically addressing the common pitfall of using traditional mocking tools (vi.mock(), jest.mock()) which break Effect's dependency injection system.

Core Features & Use Cases

• Correct Mocking: Demonstrates how to use Effect's Layer system for dependency injection in tests.
• Avoids Mock Leakage: Ensures tests are isolated and don't interfere with each other.
• Type Safety: Maintains TypeScript's type checking for mocks.
• Use Case: Testing a function that makes an HTTP request using Effect.ts, by providing a mock HttpClient Layer instead of using vi.mock('@effect/platform').

Quick Start

Use the effect.ts-testing skill to learn how to mock an HttpClient service in your Effect.ts tests.