Update coverage.yml

.github/workflows/coverage.yml

@@ -3,6 +3,11 @@ name: Run tests and upload coverage
 on: 
   push
 
+env:
+  # Display must be available globally for linux to know where xvfb is
+  DISPLAY: ":99.0"
+  QT_SELECT: "qt6"
+
 jobs:
   test:
     name: Run tests and collect coverage
@@ -16,11 +21,14 @@ jobs:
       - name: Set up Python
         uses: actions/setup-python@v4
 
-      - name: Install EGL mesa
+      - name: Setup xvfb (Linux)
+        if: runner.os == 'Linux'
         run: |
-          sudo apt-get update -y -qq
-          sudo apt-get install -y -qq libegl1-mesa libegl1-mesa-dev xvfb x11-utils libxkbcommon-x11-0 libxcb-icccm4 libxcb-image0 libxcb-keysyms1 libxcb-randr0 libxcb-render-util0  
-
+          # Stuff copied wildly from several stackoverflow posts
+          sudo apt-get install -y xvfb libxkbcommon-x11-0 libxcb-icccm4 libxcb-image0 libxcb-keysyms1 libxcb-randr0 libxcb-render-util0 libxcb-xinerama0 libxcb-xinput0 libxcb-xfixes0 libxcb-shape0 libglib2.0-0 libgl1-mesa-dev
+          sudo apt-get install '^libxcb.*-dev' libx11-xcb-dev libglu1-mesa-dev libxrender-dev libxi-dev libxkbcommon-dev libxkbcommon-x11-dev
+          # start xvfb in the background
+          sudo /usr/bin/Xvfb $DISPLAY -screen 0 1280x1024x24 &
       - name: Install dependencies
         run: pip install pytest pytest-cov pytest-qt && pip install -r requirements.txt