const { assert, skip, test, module: describe, only } = require('qunit');

const { GPU } = require('../../src');

describe('feature: Ternary');

function ternaryTest(mode) {

const gpu = new GPU({ mode });

function ternaryFunction(value) {

return (value > 1 ? 1 : 0);

}

const kernel = gpu.createKernel(ternaryFunction, { output: [1] });

const truthyResult = kernel(100);

const falseyResult = kernel(-100);

assert.equal(truthyResult[0], 1);

assert.equal(falseyResult[0], 0);

gpu.destroy();

}

test('auto', () => {

ternaryTest();

});

test('gpu', () => {

ternaryTest('gpu');

});

(GPU.isWebGLSupported ? test : skip)('webgl', () => {

ternaryTest('webgl');

});

(GPU.isWebGL2Supported ? test : skip)('webgl2', () => {

ternaryTest('webgl2');

});

(GPU.isHeadlessGLSupported ? test : skip)('headlessgl', () => {

ternaryTest('headlessgl');

});

test('cpu', () => {

ternaryTest('cpu');

});

function ternaryWithVariableUsage(mode) {

const gpu = new GPU({ mode });

const kernel = gpu.createKernel(function(value1) {

const value2 = value1 + 1;

return value2 > 10 ? 1 : 0;

}, { output: [1] });

assert.equal(kernel(9)[0], 0);

assert.equal(kernel(10)[0], 1);

gpu.destroy();

}

test('with variable usage auto', () => {

ternaryWithVariableUsage();

});

test('with variable usage gpu', () => {

ternaryWithVariableUsage('gpu');

});

(GPU.isWebGLSupported ? test : skip)('with variable usage webgl', () => {

ternaryWithVariableUsage('webgl');

});

(GPU.isWebGL2Supported ? test : skip)('with variable usage webgl2', () => {

ternaryWithVariableUsage('webgl2');

});

(GPU.isHeadlessGLSupported ? test : skip)('with variable usage headlessgl', () => {

ternaryWithVariableUsage('headlessgl');

});

test('with variable usage cpu', () => {

ternaryWithVariableUsage('cpu');

});