[appyevor] run pytest using tox

Author: jgrewe

appveyor.yml

@@ -64,7 +64,8 @@ build_script:
 test_script:
   # TODO: Force cross-compatibility tests
   # - python setup.py test --addopts "--force-compat"
-  - python setup.py test --addopts "-nauto"
+  # - python setup.py test --addopts "-nauto"
+  - py -m tox
 
 after_test:
   - ps: mkdir "$env:DEPLOY_DIR"

tox.ini

@@ -0,0 +1,9 @@
+# tox.ini
+
+[tox]
+envlist = py3{8,9,10,11,12,ruff}
+
+[testenv]
+description = Unit tests
+deps = pytest
+commands = pytest