fix tests

Author: riccardobl

.github/workflows/test.yaml

@@ -7,7 +7,7 @@ jobs:
     - name: Update Package Information
       run: sudo apt-get update
     - name: Install Dependencies
-      run: sudo apt-get install -y xvfb mesa-utils libgl1-mesa-dri
+      run: sudo apt-get install -y xvfb mesa-utils libgl1-mesa-dri libglx-mesa0 libxrender-dev libx11-dev libxext-dev
     - uses: actions/checkout@v6
     - name: Set up JDK 21
       uses: actions/setup-java@v5
@@ -21,17 +21,29 @@ jobs:
         export DISPLAY=":99"
         export GALLIUM_DRIVER="llvmpipe"
         export LIBGL_ALWAYS_SOFTWARE="1"
-        # Start Xvfb
+        export LIBGL_DEBUG="verbose"
+        # Start Xvfb with GLX support
         echo "Starting Xvfb"
-        Xvfb :99 -ac -screen 0 "$XVFB_WHD" -nolisten tcp +extension GLX +render -noreset &
+        Xvfb :99 -ac -screen 0 "$XVFB_WHD" -nolisten tcp +extension GLX +extension RENDER -noreset > /tmp/xvfb.log 2>&1 &
         Xvfb_pid="$!"
         echo "Waiting for Xvfb (PID: $Xvfb_pid) to be ready..."
-        while ! xdpyinfo -display "${DISPLAY}" > /dev/null 2>&1; do
-         		sleep 0.1
+        sleep 2
+        for i in {1..30}; do
+          if xdpyinfo -display "${DISPLAY}" > /dev/null 2>&1; then
+            echo "Xvfb is running."
+            break
+          fi
+          sleep 0.5
         done
-        echo "Xvfb is running."
+        
+        # Verify GLX works
+        glxinfo -display :99 2>&1 | head -20 || echo "glxinfo not available, continuing anyway"
 
         ./gradlew --no-daemon test
+        
+        # Clean up Xvfb
+        kill $Xvfb_pid 2>/dev/null || true
+        cat /tmp/xvfb.log || true
     - name: Upload Images
       uses: actions/upload-artifact@v4
       with:

build.gradle

@@ -59,7 +59,7 @@ dependencies {
 
 java {
     toolchain {
-        languageVersion = JavaLanguageVersion.of(8)
+        languageVersion = JavaLanguageVersion.of(21)
     }
     withSourcesJar()
     withJavadocJar()
@@ -86,6 +86,7 @@ sourceSets {
 
 tasks.withType(JavaCompile).configureEach {
     options.encoding = 'UTF-8'
+    options.release = 8
 }
 
 tasks.withType(Javadoc).configureEach {
@@ -95,6 +96,7 @@ tasks.withType(Javadoc).configureEach {
 tasks.test {
     useJUnitPlatform()
     workingDir = projectDir
+    timeout = Duration.ofMinutes(15)
 }
 
 tasks.jar {

test/org/lwjgl/opengl/awt/CompareScreenshotTest.java

@@ -297,8 +297,11 @@ public void run() {
             screenShotSuffix = "_" + screenShotIndex;
         }
 
+        File outputDir = new File("build/test-screenshots");
+        outputDir.mkdirs();
+
         ImageIO.write(background, "png", new File(
-                new File("target"),
+                outputDir,
                 System.getProperty("os.name") + "_" +
                         testInfo.getTestClass().map(Class::getSimpleName).orElse("unknown") + "_" +
                         testInfo.getTestMethod().map(Method::getName).orElse("unknown") + screenShotSuffix + ".png"));
@@ -312,7 +315,7 @@ public void run() {
                 testInfo.getTestMethod().map(Method::getName).orElse("unknown") + screenShotSuffix + ".png"));
 
         File resultDestination = new File(
-                new File("target"),
+                outputDir,
                 System.getProperty("os.name") + "_" +
                         testInfo.getTestClass().map(Class::getSimpleName).orElse("unknown") + "_" +
                         testInfo.getTestMethod().map(Method::getName).orElse("unknown") + screenShotSuffix + "_diff.png");