run tests using headless X

.github/workflows/test.yml

@@ -0,0 +1,47 @@
+name: Tests
+
+on:
+  - push
+  - workflow_dispatch
+
+jobs:
+  linux_tests:
+    timeout-minutes: 10
+
+    # The CMake configure and build commands are platform agnostic and should work equally well on Windows or Mac.
+    # You can convert this to a matrix build if you need cross-platform coverage.
+    # See: https://docs.github.com/en/free-pro-team@latest/actions/learn-github-actions/managing-complex-workflows#using-a-build-matrix
+    runs-on: ubuntu-latest
+
+    steps:
+    - uses: actions/checkout@v3
+      with:
+        submodules: recursive
+
+    # TODO: cache
+
+    - name: Install Dependencies
+      run: sudo apt update && sudo apt -y install libsdl2-dev xserver-xorg-video-dummy
+
+    - name: Configure CMake
+      run: cmake -B ${{github.workspace}}/build -DCMAKE_BUILD_TYPE=Debug
+
+    - name: Build
+      run: cmake --build ${{github.workspace}}/build --config Debug -j 4
+
+    - name: Test
+      working-directory: ${{github.workspace}}/build
+      ## Execute tests defined by the CMake configuration.
+      ## See https://cmake.org/cmake/help/latest/manual/ctest.1.html for more detail
+      #run: ctest -C ${{env.BUILD_TYPE}} --output-on-failure
+      # TODO: look into xinit
+      env:
+        DISPLAY: :0
+      run: |
+        sudo Xorg :0 -config ${{github.workspace}}/.github/workflows/x/dummy-1920x1080.conf -noautoBindGPU &
+        #export DISPLAY=:4
+        sleep 20s
+        #bin/sdl_service_test
+        ctest --output-on-failure --timeout 20
+        sudo pkill -15 Xorg
+

.github/workflows/x/dummy-1920x1080.conf

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+# https://wiki.archlinux.org/title/Xorg
+Section "Monitor"
+        Identifier "dummy_monitor"
+        HorizSync 28.0-80.0
+        VertRefresh 48.0-75.0
+        Modeline "1920x1080" 172.80 1920 2040 2248 2576 1080 1081 1084 1118
+EndSection
+
+Section "Device"
+        Identifier "dummy_card"
+        VideoRam 256000
+        Driver "dummy"
+EndSection
+
+Section "Screen"
+        Identifier "dummy_screen"
+        Device "dummy_card"
+        Monitor "dummy_monitor"
+        SubSection "Display"
+        EndSubSection
+EndSection