1 // DO NOT EDIT! This test has been generated by /html/canvas/tools/gentest.py.
2 // OffscreenCanvas test in a worker:2d.gradient.interpolate.colouralpha
6 importScripts("/resources/testharness.js");
7 importScripts("/html/canvas/resources/canvas-tests.js");
9 var t = async_test("");
10 var t_pass = t.done.bind(t);
11 var t_fail = t.step_func(function(reason) {
16 var canvas = new OffscreenCanvas(100, 50);
17 var ctx = canvas.getContext('2d');
19 var g = ctx.createLinearGradient(0, 0, 100, 0);
20 g.addColorStop(0, 'rgba(255,255,0, 0)');
21 g.addColorStop(1, 'rgba(0,0,255, 1)');
23 ctx.fillRect(0, 0, 100, 50);
24 _assertPixelApprox(canvas, 25,25, 190,190,65,65, "25,25", "190,190,65,65", 3);
25 _assertPixelApprox(canvas, 50,25, 126,126,128,128, "50,25", "126,126,128,128", 3);
26 _assertPixelApprox(canvas, 75,25, 62,62,192,192, "75,25", "62,62,192,192", 3);