2d.shadow.alpha.4.worker.js (965B)
1 // DO NOT EDIT! This test has been generated by /html/canvas/tools/gentest.py. 2 // OffscreenCanvas test in a worker:2d.shadow.alpha.4 3 // Description:Shadows with alpha components are correctly affected by globalAlpha 4 // Note: 5 6 importScripts("/resources/testharness.js"); 7 importScripts("/html/canvas/resources/canvas-tests.js"); 8 9 var t = async_test("Shadows with alpha components are correctly affected by globalAlpha"); 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, 100, 50); 21 ctx.fillStyle = '#f00'; // (work around broken Firefox globalAlpha caching) 22 ctx.shadowColor = 'rgba(0, 0, 255, 0.707)'; 23 ctx.shadowOffsetY = 50; 24 ctx.globalAlpha = 0.707; 25 ctx.fillRect(0, -50, 100, 50); 26 27 _assertPixelApprox(canvas, 50,25, 127,0,127,255, 2); 28 t.done(); 29 }); 30 done();