| // DO NOT EDIT! This test has been generated by /html/canvas/tools/gentest.py. |
| // OffscreenCanvas test in a worker:2d.gradient.interpolate.colouralpha |
| // Description: |
| // Note: |
| |
| importScripts("/resources/testharness.js"); |
| importScripts("/html/canvas/resources/canvas-tests.js"); |
| |
| var t = async_test(""); |
| 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 g = ctx.createLinearGradient(0, 0, 100, 0); |
| g.addColorStop(0, 'rgba(255,255,0, 0)'); |
| g.addColorStop(1, 'rgba(0,0,255, 1)'); |
| ctx.fillStyle = g; |
| ctx.fillRect(0, 0, 100, 50); |
| _assertPixelApprox(canvas, 25,25, 190,190,65,65, "25,25", "190,190,65,65", 3); |
| _assertPixelApprox(canvas, 50,25, 126,126,128,128, "50,25", "126,126,128,128", 3); |
| _assertPixelApprox(canvas, 75,25, 62,62,192,192, "75,25", "62,62,192,192", 3); |
| t.done(); |
| |
| }); |
| done(); |