@martinfleis following up on our chat at #SDSL2025, I finally found some time to see how a #QGIS Processing Algorithm Provider plugin can be unit tested. Here's what I've come up with so far:
https://codeberg.org/movingpandas/trajectools/src/branch/main/tests/test_run_algs.py
Next step: try to make it run on Codeberg CI


