fix test

.github/workflows/test.yml

@@ -29,6 +29,8 @@ jobs:
       run: |
         /usr/bin/Xvfb :99 -screen 0 1280x1024x24 &
         export DISPLAY=:99
+    - name: Install headless-gl dependencies
+      run: sudo apt-get install -y libxi6 libglu1-mesa        
     - name: Run Playwright tests
       run: npm run test
     - uses: actions/upload-artifact@v3

package.json

@@ -13,7 +13,10 @@
   "dependencies": {
     "@niivue/niivue": "^0.43.3",
     "@tensorflow/tfjs": "^4.19.0",
-    "gl-matrix": "^3.4.3"
+    "gl-matrix": "^3.4.3",
+    "headless-gl": "^4.1.2",
+    "gl": "^4.9.1",
+    "node-canvas": "^2.8.0"
   },
   "devDependencies": {
     "@playwright/test": "^1.44.0",

tests/model11.spec.cjs

@@ -1,3 +1,5 @@
+const gl = require('gl');
+
 const { test, expect} = require('@playwright/test');
 
 // we want to save timing info from the models to timing.json