Actually run tests on multiple platforms

[seproDev]

---

name: Pull request
about: Submit a pull request for this project
assignees: fabiocaccamo

---

Describe your changes
The tests were always running under Ubuntu. See https://github.com/fabiocaccamo/python-fontbro/actions/runs/20791181188/job/59713461231?pr=236#step:1:10

Related issue
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Checklist before requesting a review

• I have performed a self-review of my code.
• I have added tests for the proposed changes.
• I have run the tests and there are not errors.

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 99.27%. Comparing base (4a2b086) to head (6cc0878).
⚠️ Report is 1 commits behind head on main.

Additional details and impacted files

@@           Coverage Diff           @@
##             main     #237   +/-   ##
=======================================
  Coverage   99.27%   99.27%           
=======================================
  Files           8        8           
  Lines         971      971           
=======================================
  Hits          964      964           
  Misses          7        7           

Flag	Coverage Δ
unittests	99.27% <ø> (ø)

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[seproDev]

Ugh, pwsh does not fail on a non-zero exit codes. So even though the tests fail the pipeline is green https://github.com/fabiocaccamo/python-fontbro/actions/runs/20791991364/job/59716109363?pr=237#step:7:30
Changing to use bash.

[seproDev]

Okay, great the tests fail on Windows now. I can rebase once #236 and #238 are merged.

[fabiocaccamo]

@seproDev great catch!! Thank you very much.

[seproDev]

The shell: bash is required so that the tests actually fail 6f5929e#diff-eac64e6701be029f3c62c0f7bfd0f4e5516758675f07c8eb5bd12af6054b1394L49

So right now on main the tests run, but the pipeline step doesn't fail even though the tests fail. Alternatively, $ErrorActionPreference = "Stop" could be used, but that would then require separate run steps for Windows and macOS/Linux.