test: use a fixed length name for temp directories

[G-Rath]

Most of the time os.MkdirTemp creates directories with the same number of characters, but its not required to and will occasionally has one less character than what is common, which can result in the table output being slightly different.

This is compounded by us replacing the temp directory with a fixed string <tempdir> marker, as it ends up looking like the table marks are just randomly changing for no reason 🤦

[another-rex]

I think technically we're meant to check whether that random folder already exists and generate a new random name if it does to avoid conflicts.

But what are the chances?

[G-Rath]

yeah that was my thinking - it should be easy to put in a loop for that if it ever happens, but it should already be pretty small and arguably by the same logic it's technically possible to generate directories with the same name that already exist on every loop, at which point 🤷

so line has to be somewhere right

[codecov-commenter]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 67.90%. Comparing base (a750891) to head (3dbe266).
⚠️ Report is 1 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #2544      +/-   ##
==========================================
- Coverage   67.92%   67.90%   -0.02%     
==========================================
  Files         172      172              
  Lines       13395    13401       +6     
==========================================
+ Hits         9098     9100       +2     
- Misses       3581     3583       +2     
- Partials      716      718       +2     

☔ View full report in Codecov by Sentry.
📢 Have feedback on the report? Share it here.

🚀 New features to boost your workflow:

• ❄️ Test Analytics: Detect flaky tests, report on failures, and find test suite problems.
• 📦 JS Bundle Analysis: Save yourself from yourself by tracking and limiting bundle sizes in JS merges.

[G-Rath]

ok so turns out this wasn't needed because we're outputting absolute paths which will differ in length anyway due to different OS/path setups 🙃