Added import test

Author: radarhere

.appveyor.yml

@@ -45,6 +45,7 @@ test_script:
 - cd c:\pillow
 - '%PYTHON%\%EXECUTABLE% -m pip install pytest pytest-cov'
 - c:\"Program Files (x86)"\"Windows Kits"\10\Debuggers\x86\gflags.exe /p /enable %PYTHON%\%EXECUTABLE%
+- '%PYTHON%\%EXECUTABLE% -c "from PIL import Image"'
 - '%PYTHON%\%EXECUTABLE% -m pytest -vx --cov PIL --cov Tests --cov-report term --cov-report xml Tests'
 #- '%PYTHON%\%EXECUTABLE% test-installed.py -v -s %TEST_OPTIONS%' TODO TEST_OPTIONS with pytest?
 

.ci/test.sh

@@ -2,4 +2,6 @@
 
 set -e
 
-python -bb -m pytest -v -x -W always --cov PIL --cov Tests --cov-report term Tests
+python3 -c "from PIL import Image"
+
+python3 -bb -m pytest -v -x -W always --cov PIL --cov Tests --cov-report term Tests

.github/workflows/test-windows.yml

@@ -273,6 +273,7 @@ jobs:
       - name: Test Pillow
         run: |
           python3 selftest.py --installed
+          python3 -c "from PIL import Image"
           python3 -m pytest -vx --cov PIL --cov Tests --cov-report term --cov-report xml Tests
 
       - name: Upload coverage