| // DO NOT EDIT! This test has been generated by /html/canvas/tools/gentest.py. |
| // OffscreenCanvas test in a worker:2d.gradient.interpolate.overlap |
| // 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'); |
| |
| canvas.width = 200; |
| var g = ctx.createLinearGradient(0, 0, 200, 0); |
| g.addColorStop(0, '#f00'); |
| g.addColorStop(0, '#ff0'); |
| g.addColorStop(0.25, '#00f'); |
| g.addColorStop(0.25, '#0f0'); |
| g.addColorStop(0.25, '#0f0'); |
| g.addColorStop(0.25, '#0f0'); |
| g.addColorStop(0.25, '#ff0'); |
| g.addColorStop(0.5, '#00f'); |
| g.addColorStop(0.5, '#0f0'); |
| g.addColorStop(0.75, '#00f'); |
| g.addColorStop(0.75, '#f00'); |
| g.addColorStop(0.75, '#ff0'); |
| g.addColorStop(0.5, '#0f0'); |
| g.addColorStop(0.5, '#0f0'); |
| g.addColorStop(0.5, '#ff0'); |
| g.addColorStop(1, '#00f'); |
| ctx.fillStyle = g; |
| ctx.fillRect(0, 0, 200, 50); |
| _assertPixelApprox(canvas, 49,25, 0,0,255,255, 16); |
| _assertPixelApprox(canvas, 51,25, 255,255,0,255, 16); |
| _assertPixelApprox(canvas, 99,25, 0,0,255,255, 16); |
| _assertPixelApprox(canvas, 101,25, 255,255,0,255, 16); |
| _assertPixelApprox(canvas, 149,25, 0,0,255,255, 16); |
| _assertPixelApprox(canvas, 151,25, 255,255,0,255, 16); |
| t.done(); |
| |
| }); |
| done(); |