test_webgl2_not_exposed.html

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<!DOCTYPE HTML>

<html>

<head>

<title>WebGL test: WebGL2RenderingContext only exposed when appropriate</title>

<script src='/tests/SimpleTest/SimpleTest.js'></script>

<link rel='stylesheet' href='/tests/SimpleTest/test.css'>

</head>

<body>

<script>

function ShouldExpose() {

  try {

    return SpecialPowers.getBoolPref('webgl.enable-webgl2');

  } catch (e) {}

  return false;

function DoesExpose() {

  try {

    null instanceof WebGL2RenderingContext;

    return true;

  } catch (e) {}

  return false;

var doesExpose = DoesExpose();

if (ShouldExpose()) {

  ok(doesExpose, 'WebGL2RenderingContext should be exposed.');

} else {

  ok(!doesExpose, 'WebGL2RenderingContext should not be exposed.');

</script>

</body>

</html>