<!--
Copyright (c) 2019 The Khronos Group Inc.
Use of this source code is governed by an MIT-style license that can be
found in the LICENSE.txt file.
-->

<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title>WebGL Canvas Conformance Tests</title>
<link rel="stylesheet" href="../../resources/js-test-style.css"/>
<script src="../../js/js-test-pre.js"></script>
<script src="../../js/webgl-test-utils.js"></script>
</head>
<body>
<div id="description"></div>
<div id="console"></div>
<canvas id="canvas" style="width: 50px; height: 50px;"> </canvas>
<canvas id="canvas2d" width="40" height="40"> </canvas>
<script>
"use strict";
description("This test ensures WebGL implementations interact correctly with the canvas tag.");

debug("");
debug("Canvas.getContext");

assertMsg(window.WebGLRenderingContext,
          "WebGLRenderingContext should be a member of window");
assertMsg('WebGLRenderingContext' in window,
          "WebGLRenderingContext should be 'in' window");
assertMsg(Object.getPrototypeOf(WebGLRenderingContext.prototype) === Object.prototype,
          "WebGLRenderingContext should only have Object in it's prototype chain");

var wtu = WebGLTestUtils;
var canvas = document.getElementById("canvas");
var gl = wtu.create3DContext(canvas);
if (!gl) {
  testFailed("context does not exist");
} else {
  testPassed("context exists");

  debug("Checking context type");
  assertMsg(gl instanceof WebGLRenderingContext,
            "context type should be WebGLRenderingContext");
}
debug("");
var successfullyParsed = true;
</script>
<script src="../../js/js-test-post.js"></script>

</body>
</html>
