<!DOCTYPE HTML>
<html>
<!--
https://bugzilla.mozilla.org/show_bug.cgi?id=666446
-->
<head>
  <title>Test that WEBGL_debug_renderer_info works in chrome code</title>
  <script src="chrome://mochikit/content/tests/SimpleTest/SimpleTest.js"></script>
  <link rel="stylesheet" type="text/css" href="chrome://mochikit/content/tests/SimpleTest/test.css" />
</head>
<body>

<script>

const UNMASKED_VENDOR_WEBGL = 0x9245;
const UNMASKED_RENDERER_WEBGL = 0x9246;

function isNonEmptyString(s) {
  return s && (typeof s) == "string";
}

var canvas = document.createElement("canvas");
var gl = canvas.getContext("experimental-webgl");
ok(!gl.getError(), "getError on newly created WebGL context should return NO_ERROR");

ok(!gl.getParameter(UNMASKED_VENDOR_WEBGL) && gl.getError() == gl.INVALID_ENUM,
   "Should not be able to query UNMASKED_VENDOR_WEBGL without having enabled the WEBGL_debug_renderer_info extension");
ok(!gl.getParameter(UNMASKED_RENDERER_WEBGL) && gl.getError() == gl.INVALID_ENUM,
   "Should not be able to query UNMASKED_RENDERER_WEBGL without having enabled the WEBGL_debug_renderer_info extension");

var exts = gl.getSupportedExtensions();
ok(exts.includes("WEBGL_debug_renderer_info"),
   "WEBGL_debug_renderer_info should be listed by getSupportedExtensions in chrome contexts");
var ext = gl.getExtension("WEBGL_debug_renderer_info");
ok(ext,
   "WEBGL_debug_renderer_info should be available through getExtension in chrome contexts");

ok(ext.UNMASKED_VENDOR_WEBGL == UNMASKED_VENDOR_WEBGL,
   "UNMASKED_VENDOR_WEBGL has the correct value");
ok(ext.UNMASKED_RENDERER_WEBGL == UNMASKED_RENDERER_WEBGL,
   "UNMASKED_RENDERER_WEBGL has the correct value");

ok(isNonEmptyString(gl.getParameter(UNMASKED_VENDOR_WEBGL)) && gl.getError() == gl.NO_ERROR,
   "Should be able to query UNMASKED_VENDOR_WEBGL in chrome context with WEBGL_debug_renderer_info enabled");
ok(isNonEmptyString(gl.getParameter(UNMASKED_RENDERER_WEBGL)) && gl.getError() == gl.NO_ERROR,
   "Should be able to query UNMASKED_RENDERER_WEBGL in chrome context with WEBGL_debug_renderer_info enabled");

</script>
</body>
</html>
