radiac, 21 days ago

@adamchainz I've done similar with class/fn copies, but take a snapshot hash of the function I've copied and save it to a json file next to the test.

adamchainz, 21 days ago

@radiac a hash is easy but doesn’t really help debug what changed. I guess there’s git for that though.

webology, 21 days ago

@adamchainz Cc @josh since this might save some hair being pulled out for a shared theme and fields template project. 🤔

I did have a strange linting/auto-formatting cause a textarea to prepend 4 to 8 spaces in front of values that I had to turn off on a few projects that wasn’t immediately obvious.

josh, 21 days ago

@webology @adamchainz oh yeah way ahead of you, totally copying this when I get back in the office Monday for the form templates

carlton, 21 days ago

@adamchainz nice. That’s the sort of real-world dirty that I’m here for. 👏

mistersql, 22 days ago

@adamchainz This sounds very similar to snapshot testing (where the output of a long string is saved & the test fails when the string changes... the snapshot tool shows a diff & you decide if you wanted that diff).

This also sounds like how I'd implement a "pip install" for a gist or a stackoverflow question, both of which evolve & are not real packages, so they'd need ad hoc tooling support.

mistersql, 22 days ago

@adamchainz I put way to much time into treating an stackoverflow answer as a library, but never got around to fully implementing the update part because so few answers are fully usable as-is.

https://github.com/matthewdeanmartin/so_pip

adamchainz, 19 days ago

@mistersql Yes, it’s definitely a variant of snapshot testing.

Updates of SO posts are interesting. So many “updates” are actually another user replying years later with a better alternative...

diazona, 22 days ago

@adamchainz Neat, this is one of those things that seems like it should normally come with a disclaimer "for entertainment value only, do not use", but on the rare occasion that you need it....

I wonder if there's a better way to present the diff of diffs that could be built into a custom output hook? 🤔

#Python #pytest #programming

adamchainz, 19 days ago

@diazona I tried to cover alternatives first, and let engineers decide. I can’t say I did this for “entertainment” 😆

Maybe there is a better diff-of-diff presentation. Git has its three-way diff format used for merge commits - maybe that could be used. Still hard to read though.

josh, 22 days ago

@adamchainz oh, this is so good. I try to avoid getting in this position, but sometimes it’s unavoidable. Quickly adopting this approach the few places I’ve done this. 🎉

adamchainz, 22 days ago

@josh Glad to share! Good luck.