write-tests

| Route handler | Test app builder + session simulation + app.inject() | | Repository | Mock DB connection + counter-based execute | | Framework plugin | Real framework instance + selective dependency mocks | | Pure utility | No mocks — test inputs/outputs directly | | Service w/ DI | Mock injected deps via forwarding pattern |

If your test runner uses mockReset: true, most examples from the internet will silently fail.

For complex TDZ cases (multiple interdependent mocks), use the globalThis registry pattern.

使用正确的模拟模式将测试覆盖率添加到现有代码中。在向未经测试的模块添加测试、为错误编写回归测试或用户要求测试特定文件时使用。处理mockReset:true、vi.hoisted()、转发模式和测试应用程序构建器实用程序。 来源：acedergren/agentic-tools。