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<meta charset="utf-8">
<!--
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.
-->
<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));
  return [gl];
}

Tests.testBindBufferARRAY_BUFFER = function(gl) {
  var b = gl.createBuffer();
  assertOk("bind buffer", function(){gl.bindBuffer(gl.ARRAY_BUFFER, b)});
  assertFail("bufferData to null buffer", function() {
    gl.bindBuffer(gl.ARRAY_BUFFER, null);
    gl.bufferData(gl.ARRAY_BUFFER, new Float32Array([10]), gl.STATIC_DRAW);
    gl.bufferSubData(gl.ARRAY_BUFFER, 0, new Float32Array([10]));
  });
  assertFail("bind to number", function(){
    gl.bindBuffer(gl.ARRAY_BUFFER, 1000000000);
    gl.bufferData(gl.ARRAY_BUFFER, new Float32Array([10]), gl.STATIC_DRAW);
    gl.bufferSubData(gl.ARRAY_BUFFER, 0, new Float32Array([10]));
  });
  assertOk("bind to null", function(){gl.bindBuffer(gl.ARRAY_BUFFER, null)});
  gl.deleteBuffer(b);
}

Tests.testBindBufferELEMENT_ARRAY_BUFFER = function(gl) {
  var b = gl.createBuffer();
  assertOk("bind buffer", function(){gl.bindBuffer(gl.ELEMENT_ARRAY_BUFFER, b)});
  assertFail("bufferData to null buffer", function() {
    gl.bindBuffer(gl.ELEMENT_ARRAY_BUFFER, null);
    gl.bufferData(gl.ELEMENT_ARRAY_BUFFER, new Float32Array([10]), gl.STATIC_DRAW);
    gl.bufferSubData(gl.ARRAY_BUFFER, 0, new Float32Array([10]));
  });
  assertFail("bind to number", function(){
    gl.bindBuffer(gl.ELEMENT_ARRAY_BUFFER, 1000000000);
    gl.bufferData(gl.ELEMENT_ARRAY_BUFFER, new Float32Array([10]), gl.STATIC_DRAW);
    gl.bufferSubData(gl.ARRAY_BUFFER, 0, new Float32Array([10]));
  });
  assertOk("bind to null",
      function(){gl.bindBuffer(gl.ELEMENT_ARRAY_BUFFER, null)});
  gl.deleteBuffer(b);
}
Tests.testBindBuffer = function(gl) {
    assertFail("bind ARRAY_BUFFER to number",
        function(){gl.bindBuffer(gl.ARRAY_BUFFER, 1);});
    assertFail("bind ELEMENT_ARRAY_BUFFER to number",
        function(){gl.bindBuffer(gl.ELEMENT_ARRAY_BUFFER, 1);});
    assertFail("bind bad target",
        function(){gl.bindBuffer(gl.FLOAT, 0);});
    assertFail("bind ARRAY_BUFFER to string",
        function(){gl.bindBuffer(gl.ARRAY_BUFFER, "foo");});
    assertFail("bind ELEMENT_ARRAY_BUFFER to string",
        function(){gl.bindBuffer(gl.ELEMENT_ARRAY_BUFFER, "foo");});
}

</script>

<style>canvas{ position:absolute; }</style>
</head><body>
  <canvas id="gl" width="1" height="1"></canvas>
</body></html>
