// DO NOT EDIT! This test has been generated by /html/canvas/tools/gentest.py. // OffscreenCanvas test in a worker:2d.imageData.object.clamp // Description:ImageData.data clamps numbers to [0, 255] // Note: importScripts("/resources/testharness.js"); importScripts("/html/canvas/resources/canvas-tests.js"); var t = async_test("ImageData.data clamps numbers to [0, 255]"); var t_pass = t.done.bind(t); var t_fail = t.step_func(function(reason) { throw reason; }); t.step(function() { var canvas = new OffscreenCanvas(100, 50); var ctx = canvas.getContext('2d'); var imgdata = ctx.getImageData(0, 0, 10, 10); imgdata.data[0] = 100; imgdata.data[0] = 300; _assertSame(imgdata.data[0], 255, "imgdata.data[\""+(0)+"\"]", "255"); imgdata.data[0] = 100; imgdata.data[0] = -100; _assertSame(imgdata.data[0], 0, "imgdata.data[\""+(0)+"\"]", "0"); imgdata.data[0] = 100; imgdata.data[0] = 200+Math.pow(2, 32); _assertSame(imgdata.data[0], 255, "imgdata.data[\""+(0)+"\"]", "255"); imgdata.data[0] = 100; imgdata.data[0] = -200-Math.pow(2, 32); _assertSame(imgdata.data[0], 0, "imgdata.data[\""+(0)+"\"]", "0"); imgdata.data[0] = 100; imgdata.data[0] = Math.pow(10, 39); _assertSame(imgdata.data[0], 255, "imgdata.data[\""+(0)+"\"]", "255"); imgdata.data[0] = 100; imgdata.data[0] = -Math.pow(10, 39); _assertSame(imgdata.data[0], 0, "imgdata.data[\""+(0)+"\"]", "0"); imgdata.data[0] = 100; imgdata.data[0] = -Infinity; _assertSame(imgdata.data[0], 0, "imgdata.data[\""+(0)+"\"]", "0"); imgdata.data[0] = 100; imgdata.data[0] = Infinity; _assertSame(imgdata.data[0], 255, "imgdata.data[\""+(0)+"\"]", "255"); t.done(); }); done();