Import wpt@5915964199b07226bf6d8fbb177a63b1f272907a

third_party/WebKit/LayoutTests/imported/wpt/offscreen-canvas/fill-and-stroke-styles/2d.gradient.interpolate.overlap.worker.js

+// DO NOT EDIT! This test has been generated by tools/gentest.py.
+// OffscreenCanvas test in a worker:2d.gradient.interpolate.overlap
+// Description:
+// Note:
+
+importScripts("/resources/testharness.js");
+importScripts("/common/canvas-tests.js");
+
+var t = async_test("");
+t.step(function() {
+
+var offscreenCanvas = new OffscreenCanvas(100, 50);
+var ctx = offscreenCanvas.getContext('2d');
+
+offscreenCanvas.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(offscreenCanvas, 49,25, 0,0,255,255, "49,25", "0,0,255,255", 16);
+_assertPixelApprox(offscreenCanvas, 51,25, 255,255,0,255, "51,25", "255,255,0,255", 16);
+_assertPixelApprox(offscreenCanvas, 99,25, 0,0,255,255, "99,25", "0,0,255,255", 16);
+_assertPixelApprox(offscreenCanvas, 101,25, 255,255,0,255, "101,25", "255,255,0,255", 16);
+_assertPixelApprox(offscreenCanvas, 149,25, 0,0,255,255, "149,25", "0,0,255,255", 16);
+_assertPixelApprox(offscreenCanvas, 151,25, 255,255,0,255, "151,25", "255,255,0,255", 16);
+
+t.done();
+
+});
+done();