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<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title>WebGL WebGL_debug_renderer_info Conformance Tests</title>
<link rel="stylesheet" href="../../resources/js-test-style.css"/>
<script src="../../js/js-test-pre.js"></script>
<script src="../../js/webgl-test-utils.js"></script>
</head>
<body>
<div id="description"></div>
<canvas id="canvas" style="width: 1px; height: 1px;"> </canvas>
<div id="console"></div>
<!-- Shaders for testing standard derivatives -->

<script>
"use strict";
description("This test verifies the functionality of the WEBGL_debug_renderer_info extension, if it is available.");

debug("");

var wtu = WebGLTestUtils;
var gl = wtu.create3DContext("canvas");
var ext = null;
var vao = null;

if (!gl) {
    testFailed("WebGL context does not exist");
} else {
    testPassed("WebGL context exists");

    // Run tests with extension disabled
    runTestDisabled();

    // Query the extension and store globally so shouldBe can access it
    ext = gl.getExtension("WEBGL_debug_renderer_info");
    if (!ext) {
        testPassed("No WEBGL_debug_renderer_info support -- this is legal");

        runSupportedTest(false);
    } else {
        testPassed("Successfully enabled WEBGL_debug_renderer_info extension");

        runSupportedTest(true);
        runTestEnabled();
    }
}

function runSupportedTest(extensionEnabled) {
    var supported = gl.getSupportedExtensions();
    if (supported.indexOf("WEBGL_debug_renderer_info") >= 0) {
        if (extensionEnabled) {
            testPassed("WEBGL_debug_renderer_info listed as supported and getExtension succeeded");
        } else {
            testFailed("WEBGL_debug_renderer_info listed as supported but getExtension failed");
        }
    } else {
        if (extensionEnabled) {
            testFailed("WEBGL_debug_renderer_info not listed as supported but getExtension succeeded");
        } else {
            testPassed("WEBGL_debug_renderer_info not listed as supported and getExtension failed -- this is legal");
        }
    }
}

function runTestDisabled() {
    debug("Testing enums with extension disabled");

    // Use the constants directly as we don't have the extension

    var UNMASKED_VENDOR_WEBGL = 0x9245;
    gl.getParameter(UNMASKED_VENDOR_WEBGL);
    wtu.glErrorShouldBe(gl, gl.INVALID_ENUM, "UNMASKED_VENDOR_WEBGL should not be queryable if extension is disabled");

    var UNMASKED_RENDERER_WEBGL = 0x9246;
    gl.getParameter(UNMASKED_RENDERER_WEBGL);
    wtu.glErrorShouldBe(gl, gl.INVALID_ENUM, "UNMASKED_RENDERER_WEBGL should not be queryable if extension is disabled");
}

function runTestEnabled() {
    debug("Testing enums with extension enabled");

    shouldBe("ext.UNMASKED_VENDOR_WEBGL", "0x9245");
    gl.getParameter(ext.UNMASKED_VENDOR_WEBGL);
    wtu.glErrorShouldBe(gl, gl.NO_ERROR, "UNMASKED_VENDOR_WEBGL query should succeed if extension is enable");

    shouldBe("ext.UNMASKED_RENDERER_WEBGL", "0x9246");
    gl.getParameter(ext.UNMASKED_RENDERER_WEBGL);
    wtu.glErrorShouldBe(gl, gl.NO_ERROR, "UNMASKED_RENDERER_WEBGL query should succeed if extension is enable");
}

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

</body>
</html>