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<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
    <title>texImage2D and texSubImage2D tests with invalid data</title>
  <link rel="stylesheet" href="../../resources/js-test-style.css"/>
  <script src="../../resources/js-test-pre.js"></script>
  <script src="../resources/webgl-test-utils.js"></script>
</head>
<body>
<div id="description"></div>
<div id="console"></div>
<canvas id="canvas" width="2" height="2"> </canvas>
<script type="text/javascript">
description("texImage2D and texSubImage2D tests with invalid data");

var wtu = WebGLTestUtils;
var canvas = document.getElementById("canvas");
var gl = wtu.create3DContext(canvas);
if (!gl)
  testFailed("Context created.");
else
  testPassed("Context created.");

var tex;

function setup() {
    tex = gl.createTexture();
    gl.bindTexture(gl.TEXTURE_2D, tex);
    gl.texImage2D(gl.TEXTURE_2D, 0, gl.RGBA, 64, 64, 0, gl.RGBA, gl.UNSIGNED_BYTE, null);
}

function teardown() {
    gl.deleteTexture(tex);
}

function test(desc, func, expected) {
    debug(desc);

    var exc = null;
    try {
        func();
    } catch (x) {
        exc = x;
    }

    if (expected == gl.INVALID_OPERATION) {
      wtu.glErrorShouldBe(gl, expected);
    } else if (expected == "exception") {
        if (exc) {
            testPassed("threw exception");
        } else {
            testFailed("did not throw exception");
        }
    }
}

test("Calling texImage2D with no WebGLTexture bound generates INVALID_OPERATION",
     function () {
        gl.texImage2D(gl.TEXTURE_2D, 0, gl.RGBA, 64, 64, 0, gl.RGBA, gl.UNSIGNED_BYTE, null);
     },
     gl.INVALID_OPERATION);

test("Calling texSubImage2D with no WebGLTexture bound generates INVALID_OPERATION",
     function () {
        var buffer = new Uint8Array(4);
        gl.texSubImage2D(gl.TEXTURE_2D, 0, 0, 0, 1, 1, gl.RGBA, gl.UNSIGNED_BYTE, buffer);
     },
     gl.INVALID_OPERATION);

setup();

test("Passing a buffer not large enough to texImage2D should generate an INVALID_OPERATION",
     function () {
     var tooSmall = new Uint8Array(64);
        gl.texImage2D(gl.TEXTURE_2D, 0, gl.RGBA, 64, 64, 0, gl.RGBA, gl.UNSIGNED_BYTE, tooSmall);
     },
     gl.INVALID_OPERATION);

test("Passing texImage2D parameter data of Number type should throw an exception",
     function () {
        gl.texImage2D(gl.TEXTURE_2D, 0, gl.RGBA, 64, 64, 0, gl.RGBA, gl.UNSIGNED_BYTE, 42);
     },
     "exception");

test("Passing texImage2D parameter data of String type should throw a TypeError",
     function () {
        gl.texImage2D(gl.TEXTURE_2D, 0, gl.RGBA, 64, 64, 0, gl.RGBA, gl.UNSIGNED_BYTE, "not a buffer");
     },
     "exception");
test("Passing a buffer not large enough to texSubImage2D should generate an INVALID_OPERATION",
     function () {
        var tooSmall = new Uint8Array(64);
        gl.texSubImage2D(gl.TEXTURE_2D, 0, 0, 0, 64, 64, gl.RGBA, gl.UNSIGNED_BYTE, tooSmall);
     },
     gl.INVALID_OPERATION);

test("Passing texSubImage2D parameter data of Number type should throw a TypeError",
     function () {
        gl.texSubImage2D(gl.TEXTURE_2D, 0, 0, 0, 64, 64, gl.RGBA, gl.UNSIGNED_BYTE, 42);
     },
     "exception");

test("Passing texSubImage2D parameter data of String type should throw a TypeError",
     function () {
        gl.texSubImage2D(gl.TEXTURE_2D, 0, 0, 0, 64, 64, gl.RGBA, gl.UNSIGNED_BYTE, "not a buffer");
     },
     "exception");

teardown();

debug("");
var successfullyParsed = true;
</script>
<script src="../../resources/js-test-post.js"></script>

</body>
</html>