2d.canvas.host.initial.reset.different.worker.js (786B)
1 // DO NOT EDIT! This test has been generated by /html/canvas/tools/gentest.py. 2 // OffscreenCanvas test in a worker:2d.canvas.host.initial.reset.different 3 // Description:Changing size resets canvas to transparent black 4 // Note: 5 6 importScripts("/resources/testharness.js"); 7 importScripts("/html/canvas/resources/canvas-tests.js"); 8 9 var t = async_test("Changing size resets canvas to transparent black"); 10 var t_pass = t.done.bind(t); 11 var t_fail = t.step_func(function(reason) { 12 throw reason; 13 }); 14 t.step(function() { 15 16 var canvas = new OffscreenCanvas(100, 50); 17 var ctx = canvas.getContext('2d'); 18 19 ctx.fillStyle = '#f00'; 20 ctx.fillRect(0, 0, 50, 50); 21 _assertPixel(canvas, 20,20, 255,0,0,255); 22 canvas.width = 50; 23 _assertPixel(canvas, 20,20, 0,0,0,0); 24 t.done(); 25 }); 26 done();