how do I mock error conditions in unit tests?

[smousa]

Follow up question based on: #2442 (comment)

Is there a way that I can simulate errors with the test framework for existing components, so I can make sure that the pipeline works as expected?

[mihaitodor]

Hey @smousa 👋 Sure! You can use mocking and have mapping: 'root = throw("your specific error")'. For example, you could do mapping: 'root = throw("key does not exist")' to simulate a cache miss.

[smousa]

Oh, I couldn't find that in the docs, where would I expect to find that?

[mihaitodor]

Do you mean throw()? I know the search feature has some issues and, right now, bloblang methods don't show up in results for some reason... The functions seem to be indexed correctly though.