(function() {

function nestedSumABTest(mode) {

var gpu = new GPU({ mode: mode });

var f = gpu.createKernel(function(a, b) {

function custom_adder(a,b) {

return a+b;

}

return custom_adder(a[this.thread.x], b[this.thread.x]);

}, {

output : [6]

});

QUnit.assert.ok(f !== null, 'function generated test');

var a = [1, 2, 3, 5, 6, 7];

var b = [4, 5, 6, 1, 2, 3];

var res = f(a,b);

var exp = [5, 7, 9, 6, 8, 10];

for(var i = 0; i < exp.length; ++i) {

QUnit.assert.close(res[i], exp[i], 0.1, 'Result arr idx: '+i);

}

gpu.destroy();

}

QUnit.test('nested_sum (auto)', function() {

nestedSumABTest(null);

});

QUnit.test('nested_sum (gpu)', function() {

nestedSumABTest('gpu');

});

QUnit.test('nested_sum (webgl)', function() {

nestedSumABTest('webgl');

});

QUnit.test('nested_sum (webgl2)', function() {

nestedSumABTest('webgl2');

});

QUnit.test('nested_sum (CPU)', function() {

nestedSumABTest('cpu');

});

})();