buffer-bind-test.html

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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.

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<!DOCTYPE html>

<html>

  <head>

<meta charset="utf-8">

    <title>WebGL BindBuffer conformance test.</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>

<canvas id="example" width="40" height="40" style="width: 40px; height: 40px;"></canvas>

<div id="description"></div>

<div id="console"></div>

<script>

"use strict";

description("Checks a buffer can only be bound to 1 target.");

debug("");

debug("Canvas.getContext");

var wtu = WebGLTestUtils;

var gl = wtu.create3DContext("example");

if (!gl) {

  testFailed("context does not exist");

} else {

  testPassed("context exists");

  debug("");

  var buf = gl.createBuffer();

  gl.bindBuffer(gl.ARRAY_BUFFER, buf);

  wtu.glErrorShouldBe(gl, gl.NO_ERROR,

            "should be able to bind array buffer.");

  gl.bindBuffer(gl.ARRAY_BUFFER, null);

  wtu.glErrorShouldBe(gl, gl.NO_ERROR,

            "should be able to unbind array buffer.");

  gl.bindBuffer(gl.ELEMENT_ARRAY_BUFFER, buf);

  wtu.glErrorShouldBe(gl, gl.INVALID_OPERATION,

            "should get INVALID_OPERATION if attempting to bind array buffer to different target");

  var buf = gl.createBuffer();

  gl.bindBuffer(gl.ELEMENT_ARRAY_BUFFER, buf);

  wtu.glErrorShouldBe(gl, gl.NO_ERROR,

            "should be able to bind element array buffer.");

  gl.bindBuffer(gl.ELEMENT_ARRAY_BUFFER, null);

  wtu.glErrorShouldBe(gl, gl.NO_ERROR,

            "should be able to unbind element array buffer.");

  gl.bindBuffer(gl.ARRAY_BUFFER, buf);

  wtu.glErrorShouldBe(gl, gl.INVALID_OPERATION,

            "should get INVALID_OPERATION if attempting to bind element array buffer to different target");

debug("");

var successfullyParsed = true;

</script>

<script src="../../js/js-test-post.js"></script>

</body>

</html>