Reverse test order for two jobs

.ci/test.sh

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

.github/workflows/test.yml

@@ -24,6 +24,7 @@ jobs:
         include:
         - python-version: "3.6"
           PYTHONOPTIMIZE: 1
+          REVERSE: "--reverse"
         - python-version: "3.7"
           PYTHONOPTIMIZE: 2
         # Include new variables for Codecov
@@ -80,6 +81,9 @@ jobs:
 
     - name: Test
       run: |
+        if [ $REVERSE ]; then
+          python3 -m pip install pytest-reverse
+        fi
         if [ "${{ matrix.os }}" = "ubuntu-latest" ]; then
           xvfb-run -s '-screen 0 1024x768x24' .ci/test.sh
         else
@@ -87,6 +91,7 @@ jobs:
         fi
       env:
         PYTHONOPTIMIZE: ${{ matrix.PYTHONOPTIMIZE }}
+        REVERSE: ${{ matrix.REVERSE }}
 
     - name: Prepare to upload errors
       if: failure()