matplotlib
diff --git a/‎.github/workflows/tests.yml
Copy file name to clipboardExpand all lines: .github/workflows/tests.yml
+7-6Lines changed: 7 additions & 6 deletions b/‎.github/workflows/tests.yml
Copy file name to clipboardExpand all lines: .github/workflows/tests.yml
+7-6Lines changed: 7 additions & 6 deletions
diff --git a/‎lib/matplotlib/tests/test_agg.py
Copy file name to clipboardExpand all lines: lib/matplotlib/tests/test_agg.py
+6Lines changed: 6 additions & 0 deletions b/‎lib/matplotlib/tests/test_agg.py
Copy file name to clipboardExpand all lines: lib/matplotlib/tests/test_agg.py
+6Lines changed: 6 additions & 0 deletions
@@ -56,6 +56,9 @@ jobs:
             extra-requirements: '-r requirements/testing/extra.txt'
           - os: ubuntu-20.04
             python-version: '3.11'
+            extra-requirements: '-r requirements/testing/extra.txt'
+          - os: ubuntu-latest
+            python-version: '3.12-dev'
           - os: macos-latest
             python-version: 3.8
 
@@ -199,13 +202,11 @@ jobs:
             python -c 'import PyQt5.QtCore' &&
             echo 'PyQt5 is available' ||
             echo 'PyQt5 is not available'
-          if [[ "${{ runner.os }}" != 'macOS' ]]; then
-            python -mpip install --upgrade pyside2${{ matrix.pyside2-ver }} &&
-              python -c 'import PySide2.QtCore' &&
-              echo 'PySide2 is available' ||
-              echo 'PySide2 is not available'
-          fi
           if [[ "${{ matrix.os }}" = ubuntu-20.04 ]]; then
+            python -mpip install --upgrade pyside2${{ matrix.pyside2-ver }} &&
+                python -c 'import PySide2.QtCore' &&
+                echo 'PySide2 is available' ||
+                echo 'PySide2 is not available'
             python -mpip install --upgrade pyqt6${{ matrix.pyqt6-ver }} &&
               python -c 'import PyQt6.QtCore' &&
               echo 'PyQt6 is available' ||
 
@@ -250,6 +250,9 @@ def test_pil_kwargs_tiff():
 
 
 def test_pil_kwargs_webp():
+    Image.init()
+    if "WEBP" not in Image.SAVE:
+        pytest.skip("No WEBP support")
     plt.plot([0, 1, 2], [0, 1, 0])
     buf_small = io.BytesIO()
     pil_kwargs_low = {"quality": 1}
@@ -263,6 +266,9 @@ def test_pil_kwargs_webp():
 
 
 def test_webp_alpha():
+    Image.init()
+    if "WEBP" not in Image.SAVE:
+        pytest.skip("No WEBP support")
     plt.plot([0, 1, 2], [0, 1, 0])
     buf = io.BytesIO()
     plt.savefig(buf, format="webp", transparent=True)