<!--
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>Simulated Attrib 0 Bug Test</title>
<script src="../js/js-test-pre.js"></script>
<script src="../js/webgl-test-utils.js"></script>
</head>
<body>
<div>Simulated Attrib 0 Bug Test</div>
<div id="description"></div>
<div id="console"></div>
<script>
"use strict";
var wtu = WebGLTestUtils;
var context = wtu.create3DContext();
var program = wtu.loadStandardProgram(context);

context.useProgram(program);
debug("This line attempts to draw with 0x7FFFFFFF triangles with attrib 0 off");
debug("A buggy simulated attrib 0 impl will probably mult 0x7FFFFFFF * sizeof(vec4)");
shouldBe("context.drawArrays(context.TRIANGLES, 0, 0x7fffffff);", "undefined");
debug("This line attempts to draw with 0x7ffffff triangles.");
debug("A buggy simulated attrib 0 impl will probably pass 0x7FFFFFF0 to glBufferData and then not check that it failed");
shouldBe("context.drawArrays(context.TRIANGLES, 0, 0x7ffffff);", "undefined");
debug("")
debug("NOTE!: You may not see any manifestation here. Check your impl for these issues");
</script>
</body>
</html>

