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<meta charset="utf-8">
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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.autorun = false;
Tests.message = "This will fuzz the API with random inputs for a [long] while."


function randomCall(testProgress, gl, m, arities) {
    doTestNotify(m);
    var argcs = {};
    var foundArity = false;
    if (arities == null) {
        testProgress.textContent += "            500 random arity calls on " + m + "\n";
        for (var i=0; i<50; i++) {
            for (var j=0; j<10; j++) {
                var args = generateRandomArgs(j);
//                 doTestNotify(m + ": " + args.toSource());
                try {
                    gl[m].apply(gl, args);
                    argcs[j] = true;
                    foundArity = true;
                } catch (e) {
                }
            }
        }
        for (var j in argcs) {
            testProgress.textContent += "200 arity " + j + " calls on " + m + "\n";
            for (var i=0; i<200; i++) {
                var args = generateRandomArgs(j);
//                 doTestNotify(m + ": " + args.toSource());
                try {
                    gl[m].apply(gl, args);
                    argcs[j] = true;
                } catch (e) {
                }
            }
        }
    } else {
        for (var k=0; k<arities.length; k++) {
            var j = arities[k];
            testProgress.textContent += "500 arity " + j + " calls on " + m + "\n";
            for (var i=0; i<500; i++) {
                var args = generateRandomArgs(j);
//                 doTestNotify(m + ": " + args.toSource());
                try {
                    gl[m].apply(gl, args);
                } catch (e) {
                }
            }
        }
    }
//     doTestNotify(m+"--OK");
}

Tests.testGetGLWeb20 = function() {
    var testProgress = document.getElementById('testProgress');
    var funcnames = document.getElementById('funcnames').value.split(",");
    var canvas = document.getElementById('glweb20');
    var gl;
    assertOk(function(){gl = getGLContext(canvas);});
    var funcs = [];
    for (var i=0; i<funcnames.length; i++) {
        var fn = funcnames[i];
        fn = fn.replace(/^\s+|\s+$/g, '');
        if (fn.length > 0)
            funcs.push(fn);
    }
    if (funcs.length == 0) {
        for (var m in gl)
            try{if (typeof gl[m] == 'function')
                funcs.push(m);}catch(e){}
    }
    var idx = 0;
    var count = 0;
    var limit = 1000;
    var iv1;
    var iv2;
    iv1 = setInterval(function(){
        if (idx >= funcs.length) {
            iv2 = setInterval(function(){
                if (count >= limit) {
                    clearInterval(iv2);
                    return false;
                }
                count++;
                var f = Math.floor(Math.random() * funcs.length);
                randomCall(testProgress, gl, funcs[f]);
            }, 50);
            clearInterval(iv1);
            return false;
        }
        randomCall(testProgress, gl, funcs[idx]);
        idx++;
    }, 50);
}

</script>
<style>canvas{ position:absolute; }</style>
</head><body>
  <canvas id="glweb20" width="16" height="16"></canvas>
  <p>Optional: Enter a comma-separated list of functions to fuzz (leave blank for full API)</p>
  <input type="text" size="40" id="funcnames" value="">
  <pre id="testProgress"></pre>
</body></html>
