How do you use MUnit to test a connector integration?

• A. Mock external systems, simulate responses, and assert that the flow handles connector results as expected.
• B. MUnit automates deployment to production.
• C. MUnit is used only for performance testing.
• D. MUnit generates RAML specs automatically.

Answer: (B)

Testing a connector integration with MUnit means creating tests that mock the external system the connector talks to, simulate the responses that system would send, and verify that the Mule flow processes those responses correctly. You set up mocks for the external service, configure them to return specific payloads or errors, and run the flow to confirm it handles those results as expected. With assertions, you check the output payload, headers, and any flow variables to ensure the behavior matches your expectations, including handling of success paths and error scenarios. This approach lets you validate how the connector interaction behaves in isolation from real endpoints. MUnit is for testing Mule applications; it does not automate deployment to production, it isn’t a performance testing tool, and it doesn’t generate RAML specs automatically.