middleware-testing-patterns

Testing Levels | Level | Purpose | Dependencies | Speed |

| Unit Transform | Single mapping correctness | None | Fast | | Route Logic | Routing decision accuracy | Mocked endpoints | Fast | | Integration | End-to-end message flow | Broker + endpoints | Medium | | DLQ/Error | Error handling and recovery | Full middleware stack | Slower |

Critical Test Scenarios | Scenario | Must Test | Example |

用於訊息路由、轉換、DLQ、協定中介、ESB 錯誤處理和 EIP 模式的企業中介軟體測試模式。在測試中間件層、訊息代理、ESB 或整合匯流排時使用。 來源：proffesor-for-testing/agentic-qe。