TST: enable GUI framework testing on OSX on GHA

skip pyside2 on GHA because it is segfaulting with openGL issues

Author: tacaswell

.github/workflows/tests.yml

@@ -171,37 +171,38 @@ jobs:
           # (sometimes, the install appears to be successful but shared
           # libraries cannot be loaded at runtime, so an actual import is a
           # better check).
-          if [[ "${{ runner.os }}" != 'macOS' ]]; then
-            # PyGObject, pycairo, and cariocffi do not install on OSX 10.12.
-             python -m pip install --upgrade pycairo 'cairocffi>=0.8' PyGObject &&
-               python -c 'import gi; gi.require_version("Gtk", "3.0"); from gi.repository import Gtk' &&
-               echo 'PyGObject is available' ||
-               echo 'PyGObject is not available'
+          # PyGObject, pycairo, and cariocffi do not install on OSX 10.12.
+           python -m pip install --upgrade pycairo 'cairocffi>=0.8' PyGObject &&
+             python -c 'import gi; gi.require_version("Gtk", "3.0"); from gi.repository import Gtk' &&
+             echo 'PyGObject is available' ||
+             echo 'PyGObject is not available'
 
-            # There are no functioning wheels available for OSX 10.12 (as of
-            # Sept 2020) for either pyqt5 (there are only wheels for 10.13+) or
-            # pyside2 (the latest version (5.13.2) with 10.12 wheels has a
-            # fatal to us bug, it was fixed in 5.14.0 which has 10.13 wheels)
-            python -mpip install --upgrade pyqt5${{ matrix.pyqt5-ver }} &&
-              python -c 'import PyQt5.QtCore' &&
-              echo 'PyQt5 is available' ||
-              echo 'PyQt5 is not available'
+          # There are no functioning wheels available for OSX 10.12 (as of
+          # Sept 2020) for either pyqt5 (there are only wheels for 10.13+) or
+          # pyside2 (the latest version (5.13.2) with 10.12 wheels has a
+          # fatal to us bug, it was fixed in 5.14.0 which has 10.13 wheels)
+          python -mpip install --upgrade pyqt5${{ matrix.pyqt5-ver }} &&
+            python -c 'import PyQt5.QtCore' &&
+            echo 'PyQt5 is available' ||
+            echo 'PyQt5 is not available'
+          if [[ "${{ runner.os }}" != 'macOS' ]]; then
             python -mpip install --upgrade pyside2 &&
               python -c 'import PySide2.QtCore' &&
               echo 'PySide2 is available' ||
               echo 'PySide2 is not available'
-            # Qt6 crashes on Github's ubuntu 18.04 runner.
-            if [[ "${{ matrix.os }}" = ubuntu-20.04 ]]; then
-              python -mpip install --upgrade pyqt6 &&
-                python -c 'import PyQt6.QtCore' &&
-                echo 'PyQt6 is available' ||
-                echo 'PyQt6 is not available'
-              python -mpip install --upgrade pyside6 &&
-                python -c 'import PySide6.QtCore' &&
-                echo 'PySide6 is available' ||
-                echo 'PySide6 is not available'
-            fi
           fi
+          # Qt6 crashes on Github's ubuntu 18.04 runner.
+          if [[ "${{ matrix.os }}" = ubuntu-20.04 ]]; then
+            python -mpip install --upgrade pyqt6 &&
+              python -c 'import PyQt6.QtCore' &&
+              echo 'PyQt6 is available' ||
+              echo 'PyQt6 is not available'
+            python -mpip install --upgrade pyside6 &&
+              python -c 'import PySide6.QtCore' &&
+              echo 'PySide6 is available' ||
+              echo 'PySide6 is not available'
+          fi
+
           python -mpip install --upgrade \
             -f "https://extras.wxpython.org/wxPython4/extras/linux/gtk3/${{ matrix.os }}" \
             wxPython &&