Thrown exception not catchable?

[jallmer]

Hi,

within a stream as part of a pipeline, I throw an error and would like to test whether the error was thrown under the circumstances I expect it to be thrown. I am sure that my code throws the error, but I cannot catch it within the unit test.
Wrapping everything in try ... catch or using expect(named_func).to.throw("..."); also doesn't kick in. This is odd and I am starting to think that there might be a bug.
More explanation on stackoverflow: https://stackoverflow.com/questions/67610745/javascript-pipeline-not-catching-an-error-i-throw/67611032?noredirect=1#comment119520424_67611032
Probably there is something I am doing wrong. Please point me to the right direction.

Thank you.