14.63Best interview answer: MUnit vs external automation

If they ask:

“How would you split Mule testing between MUnit and your automation framework?”

Say:

“I'd use MUnit heavily for flow logic—DataWeave mappings, Choice branches, mocked connector responses, error handlers, retries and verifying side effects aren't invoked incorrectly. Then I'd use a smaller external API suite against a deployed Mule environment and Salesforce sandbox to prove authentication, SOQL, schema, permissions, real External-ID behavior and actual target state. Full end-to-end tests should be selective because they're slower and more environment-dependent.”

That's a very strong answer.