CI for opengl

Author: aplavin

.github/workflows/CI.yml

@@ -19,11 +19,12 @@ jobs:
       fail-fast: false
     steps:
       - uses: actions/checkout@v2
+      - run: sudo apt-get update && sudo apt-get install -y xorg-dev mesa-utils xvfb libgl1 freeglut3-dev libxrandr-dev libxinerama-dev libxcursor-dev libxi-dev libxext-dev xsettingsd x11-xserver-utils
       - uses: julia-actions/setup-julia@v2
         with:
           version: ${{ matrix.julia-version }}
           arch: ${{ matrix.arch }}
       - uses: julia-actions/cache@v2
       - uses: julia-actions/julia-buildpkg@v1
       - run: julia -e 'using Pkg; pkg"add Makie@${{ matrix.makie-version }}"'
-      - uses: julia-actions/julia-runtest@v1
+      - run: DISPLAY=:0 xvfb-run -s '-screen 0 1024x768x24' julia --project -e 'using Pkg; Pkg.test()'