2d.gradient.interpolate.alpha.worker.js (929B)
1 // DO NOT EDIT! This test has been generated by /html/canvas/tools/gentest.py. 2 // OffscreenCanvas test in a worker:2d.gradient.interpolate.alpha 3 // Description: 4 // Note: 5 6 importScripts("/resources/testharness.js"); 7 importScripts("/html/canvas/resources/canvas-tests.js"); 8 9 var t = async_test(""); 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 = '#ff0'; 20 ctx.fillRect(0, 0, 100, 50); 21 var g = ctx.createLinearGradient(0, 0, 100, 0); 22 g.addColorStop(0, 'rgba(0,0,255, 0)'); 23 g.addColorStop(1, 'rgba(0,0,255, 1)'); 24 ctx.fillStyle = g; 25 ctx.fillRect(0, 0, 100, 50); 26 _assertPixelApprox(canvas, 25,25, 191,191,63,255, 3); 27 _assertPixelApprox(canvas, 50,25, 127,127,127,255, 3); 28 _assertPixelApprox(canvas, 75,25, 63,63,191,255, 3); 29 t.done(); 30 }); 31 done();