Simon Redding (Dec 12 2025 at 17:03): Simon Redding (Dec 12 2025 at 17:03):Does anyone have any advice about how to write tests for effectful functions?
I'm exploring presenting lazy line by line text file access as walk/map/etc over a File.Reader (from basic-cli) but I'm struggling to write any useful tests for these functions which are, by necessity, effectful.
I keep running into "Effect in top-level" errors when I try to use "expect" and I hoping that there's a good way to avoid this or a different approach that I should be taking.
Richard Feldman (Dec 12 2025 at 17:10):I have a design for this, but it's not currently the highest-priority thing to implement :sweat_smile:
Richard Feldman (Dec 12 2025 at 17:10):short answer is that it's not implemented yet, sorry about that!
Simon Redding (Dec 12 2025 at 17:41):That's good to know, and I can totally understand it not being a priority.
It's not a show stopper by any means.
Last updated: Dec 21 2025 at 12:15 UTC