test_has_rbab.html

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<!DOCTYPE HTML>

<html>

<head>

  <meta charset='UTF-8'>

  <title>Fail without robust_buffer_access_behavior</title>

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

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

</head>

<body>

<script>

function AssertRBAB() {

  const c = document.createElement('canvas');

  const g = c.getContext('webgl');

  const e = g.getExtension('MOZ_debug');

  ok(e, 'Should have MOZ_debug.');

  const does_index_validation = e.getParameter(e.DOES_INDEX_VALIDATION);

  const err = g.getError();

  ok(!err, 'Error should be 0, was 0x' + err.toString(16));

  ok(!does_index_validation,

     "Should have RBAB. Mark this test as failing on platforms that can't support it.");

  SimpleTest.finish();

// -

SimpleTest.waitForExplicitFinish();

const prefPairList = [

  ['webgl.force-enabled', true],

  ['webgl.enable-privileged-extensions', true],

];

const prefEnv = {'set': prefPairList};

SpecialPowers.pushPrefEnv(prefEnv, AssertRBAB);

</script>

</body>

</html>