// DO NOT EDIT! This test has been generated by tools/gentest.py. // OffscreenCanvas test in a worker:2d.imageData.create2.initial // Description:createImageData(sw, sh) returns transparent black data of the right size // Note: importScripts("/resources/testharness.js"); importScripts("/common/canvas-tests.js"); var t = async_test("createImageData(sw, sh) returns transparent black data of the right size"); t.step(function() { var offscreenCanvas = new OffscreenCanvas(100, 50); var ctx = offscreenCanvas.getContext('2d'); var imgdata = ctx.createImageData(10, 20); _assertSame(imgdata.data.length, imgdata.width*imgdata.height*4, "imgdata.data.length", "imgdata.width*imgdata.height*4"); _assert(imgdata.width < imgdata.height, "imgdata.width < imgdata.height"); _assert(imgdata.width > 0, "imgdata.width > 0"); var isTransparentBlack = true; for (var i = 0; i < imgdata.data.length; ++i) if (imgdata.data[i] !== 0) isTransparentBlack = false; _assert(isTransparentBlack, "isTransparentBlack"); t.done(); }); done();