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

Tests.setup = function(gl) {
    var tex = gl.createTexture();
    gl.bindTexture(gl.TEXTURE_2D, tex);
    return [gl]
}

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

Tests.testTexImage2D = function(gl) {
    gl.texImage2D(gl.TEXTURE_2D, 0, gl.RGBA, 2,2,0,gl.RGBA,gl.UNSIGNED_BYTE, new Uint8Array([0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0]));
    assertGLError(gl, gl.INVALID_OPERATION, "not enough data", function(){
        gl.texSubImage2D(gl.TEXTURE_2D, 0,0, 0, 2,1,gl.RGBA,gl.UNSIGNED_BYTE, new Uint8Array([0,0,0,0]));
    });
    assertGLError(gl, gl.INVALID_OPERATION, "not enough data", function(){
        gl.texSubImage2D(gl.TEXTURE_2D, 0,0, 0, 1,2,gl.RGBA,gl.UNSIGNED_BYTE, new Uint8Array([0,0,0,0]));
    });
    assertGLError(gl, gl.INVALID_ENUM, "bad target", function(){
        gl.texSubImage2D(gl.FLOAT, 0, 0,0, 1,1,gl.RGBA,gl.UNSIGNED_BYTE, new Uint8Array([0,0,0,0]));
    });
    assertGLError(gl, gl.INVALID_VALUE, "width out of range", function(){
        gl.texSubImage2D(gl.TEXTURE_2D, 0,0, 0, 3,1,gl.RGBA,gl.UNSIGNED_BYTE, new Uint8Array([0,0,0,0,0,0,0,0,0,0,0,0]));
    });
    assertGLError(gl, gl.INVALID_VALUE, "height out of range", function(){
        gl.texSubImage2D(gl.TEXTURE_2D, 0,0, 0, 1,3,gl.RGBA,gl.UNSIGNED_BYTE, new Uint8Array([0,0,0,0,0,0,0,0,0,0,0,0]));
    });
    assertOk("zero size", function(){
        gl.texSubImage2D(gl.TEXTURE_2D, 0,0, 0, 0,0,gl.RGBA,gl.UNSIGNED_BYTE, new Uint8Array([0,0,0,0]));
    });
    assertSomeGLError(gl, "negative width", function(){
        gl.texSubImage2D(gl.TEXTURE_2D, 0,0, 0, -1,1,gl.RGBA,gl.UNSIGNED_BYTE, new Uint8Array([0,0,0,0]));
    });
    assertSomeGLError(gl, "negative height", function(){
        gl.texSubImage2D(gl.TEXTURE_2D, 0,0, 0, 1,-1,gl.RGBA,gl.UNSIGNED_BYTE, new Uint8Array([0,0,0,0]));
    });
    assertGLError(gl, gl.INVALID_VALUE, "negative x", function(){
        gl.texSubImage2D(gl.TEXTURE_2D, 0,-1,1,1,1,gl.RGBA,gl.UNSIGNED_BYTE, new Uint8Array([0,0,0,0]));
    });
    assertGLError(gl, gl.INVALID_VALUE, "negative y", function(){
        gl.texSubImage2D(gl.TEXTURE_2D, 0,1,-1,1,1,gl.RGBA,gl.UNSIGNED_BYTE, new Uint8Array([0,0,0,0]));
    });
    assertGLErrorIn(gl, [gl.INVALID_OPERATION, gl.INVALID_ENUM], "bad format", function(){
        gl.texSubImage2D(gl.TEXTURE_2D, 0, 0,0, 1,1,gl.FLOAT,gl.UNSIGNED_BYTE, new Uint8Array([0,0,0,0]));
    });
    assertGLErrorIn(gl, [gl.INVALID_OPERATION, gl.INVALID_ENUM], "bad type", function(){
        gl.texSubImage2D(gl.TEXTURE_2D, 0, 0,0, 1,1,gl.RGBA,gl.TEXTURE_2D, new Uint8Array([0,0,0,0]));
    });
    assertGLError(gl, gl.INVALID_OPERATION, "not enough data", function(){
        gl.texSubImage2D(gl.TEXTURE_2D, 0, 0,0, 1,1,gl.RGBA,gl.UNSIGNED_BYTE, new Uint8Array([0,0,0]));
    });
    assertGLError(gl, gl.INVALID_OPERATION, "format does not match internal format", function(){
        gl.texSubImage2D(gl.TEXTURE_2D, 0, 0,0, 1,1,gl.RGB,gl.UNSIGNED_BYTE, new Uint8Array([0,0,0]));
    });
    assertGLError(gl, gl.INVALID_OPERATION, "type does not match original", function(){
        gl.texSubImage2D(gl.TEXTURE_2D, 0, 0,0, 1,1,gl.RGBA,gl.UNSIGNED_SHORT_4_4_4_4, new Uint16Array([0]));
    });
}


Tests.endUnit = function(gl) {
}

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