dom/canvas/test/webgl-mochitest/test_webgl2_not_exposed.html

   1 <!DOCTYPE HTML>
   2 <html>
   3 <head>
   4 <title>WebGL test: WebGL2RenderingContext only exposed when appropriate</title>
   5 <script src='/tests/SimpleTest/SimpleTest.js'></script>
   6 <link rel='stylesheet' href='/tests/SimpleTest/test.css'>
   7 </head>
   8 <body>
   9 <script>
  10
  11 function ShouldExpose() {
  12   try {
  13     return SpecialPowers.getBoolPref('webgl.enable-webgl2');
  14   } catch (e) {}
  15
  16   return false;
  17 }
  18
  19 function DoesExpose() {
  20   try {
  21     null instanceof WebGL2RenderingContext;
  22     return true;
  23   } catch (e) {}
  24
  25   return false;
  26 }
  27
  28 var doesExpose = DoesExpose();
  29 if (ShouldExpose()) {
  30   ok(doesExpose, 'WebGL2RenderingContext should be exposed.');
  31 } else {
  32   ok(!doesExpose, 'WebGL2RenderingContext should not be exposed.');
  33 }
  34
  35 </script>
  36 </body>
  37 </html>