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/*
** Copyright (c) 2012 The Khronos Group Inc.
**
** Permission is hereby granted, free of charge, to any person obtaining a
** copy of this software and/or associated documentation files (the
** "Materials"), to deal in the Materials without restriction, including
** without limitation the rights to use, copy, modify, merge, publish,
** distribute, sublicense, and/or sell copies of the Materials, and to
** permit persons to whom the Materials are furnished to do so, subject to
** the following conditions:
**
** The above copyright notice and this permission notice shall be included
** in all copies or substantial portions of the Materials.
**
** THE MATERIALS ARE PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
** EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
** MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
** IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
** CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
** TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
** MATERIALS OR THE USE OR OTHER DEALINGS IN THE MATERIALS.
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<meta charset="utf-8">
<link rel="stylesheet" type="text/css" href="../unit.css" />
<script type="application/javascript" src="../unit.js"></script>
<script type="application/javascript" src="../util.js"></script>
<script type="application/javascript">

Tests.startUnit = function () {
  var canvas = document.getElementById('gl');
  var gl = wrapGLContext(getGLContext(canvas));
  var tex = gl.createTexture();
  gl.bindTexture(gl.TEXTURE_2D, tex);
  return [gl, tex];
}

Tests.testTexImage2D = function(gl) {
    var b = document.createElement('b');
    var div = document.createElement('div');
    var c = document.getElementById('c');
    assertFail("bad element b",
        function() {gl.texImage2D(gl.TEXTURE_2D, 0, gl.RGBA, gl.RGBA, gl.UNSIGNED_BYTE, b); });
    assertFail("bad element div",
        function() {gl.texImage2D(gl.TEXTURE_2D, 0, gl.RGBA, gl.RGBA, gl.UNSIGNED_BYTE, div); });
    assertFail("no element",
        function() {gl.texImage2D(gl.TEXTURE_2D, 0, gl.RGBA, gl.RGBA, gl.UNSIGNED_BYTE, 0); });
    assertFail("string as data",
        function() {gl.texImage2D(gl.TEXTURE_2D, 0, gl.RGBA, gl.RGBA, gl.UNSIGNED_BYTE, "foo"); });
    assertOk("canvas as data",
         function() {gl.texImage2D(gl.TEXTURE_2D, 0, gl.RGBA, gl.RGBA, gl.UNSIGNED_BYTE, c); });
    assertFail("bad target",
        function() {gl.texImage2D(gl.FLOAT, 0, gl.RGBA, gl.RGBA, gl.UNSIGNED_BYTE, c); });
}

Tests.endUnit = function(gl, tex) {
    gl.bindTexture(gl.TEXTURE_2D, null);
    gl.deleteTexture(tex);
}

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<style>canvas{ position:absolute; }</style>
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<canvas id="gl" width="16" height="16"></canvas>
<canvas id="c" width="16" height="16"></canvas>
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