Try using f3d-app/install-mesa-windows-action.

Author: SpartanJ

.github/workflows/eepp-windows-build-check.yml

@@ -33,8 +33,14 @@ jobs:
       shell: cmd
       run: |
         "%MSBUILD_PATH%\MSBuild.exe" .\make\windows\eepp.sln -m /p:Platform="x64" /p:Configuration="release"
+    - name: Install Mesa for software rendering
+      uses: f3d-app/install-mesa-windows-action@v1
+      with:
+        path: ${{ github.workspace }}/bin/unit_tests
     - name: Unit Tests
       shell: cmd
+      env:
+        GALLIUM_DRIVER: llvmpipe
       run: |
         bin\unit_tests\eepp-unit_tests.exe
     - name: Upload artifacts

src/tests/unit_tests/fontrendering.cpp

@@ -14,6 +14,8 @@ UTEST( FontRendering, fontsTest ) {
 	if ( !win->isOpen() ) {
 		std::cout << "OpenGL context not available, skipping" << std::endl;
 		return;
+	} else {
+		std::cout << GLi->getRenderer() << std::endl;
 	}
 
 	// This will never trigger for the moment