ci: Run tests with oldest supported PySide/PyQt versions

We support older versions of PySide6/PyQt6, so we should also test with the
oldest versions we support to prevent regressions.

Author: The-Compiler

.github/workflows/test.yml

@@ -32,6 +32,13 @@ jobs:
         python-version: ["3.9", "3.10", "3.11", "3.12", "3.13"]
         qt-lib: [pyqt5, pyqt6, pyside6]
         os: [ubuntu-latest, windows-latest, macos-latest]
+        include:
+          - python-version: "3.9"
+            qt-lib: pyqt61
+            os: ubuntu-latest
+          - python-version: "3.9"
+            qt-lib: pyside60
+            os: ubuntu-latest
 
     steps:
     - uses: actions/checkout@v4

tox.ini

@@ -1,12 +1,15 @@
 [tox]
-envlist = py{39,310,311,312,313}-{pyqt5,pyside6,pyqt6}
+envlist = py{39,310,311,312,313}-{pyqt5,pyside6,pyqt6},py39-pyside60,py39-pyqt61
 
 [testenv]
 deps=
     pytest
     pyside6: pyside6
+    pyside60: pyside6<6.1
     pyqt5: pyqt5
     pyqt6: pyqt6
+    pyqt61: pyqt6<6.2
+    pyqt61: pyqt6-sip<13.6
 commands=
     pytest --color=yes {posargs}
 setenv=