2d.gradient.conic.negative.rotation.html (1183B)
1 <!DOCTYPE html> 2 <!-- DO NOT EDIT! This test has been generated by /html/canvas/tools/gentest.py. --> 3 <meta charset="UTF-8"> 4 <title>OffscreenCanvas test: 2d.gradient.conic.negative.rotation</title> 5 <script src="/resources/testharness.js"></script> 6 <script src="/resources/testharnessreport.js"></script> 7 <script src="/html/canvas/resources/canvas-tests.js"></script> 8 9 <h1>2d.gradient.conic.negative.rotation</h1> 10 <p class="desc">Conic gradient with negative rotation</p> 11 12 13 <script> 14 var t = async_test("Conic gradient with negative rotation"); 15 var t_pass = t.done.bind(t); 16 var t_fail = t.step_func(function(reason) { 17 throw reason; 18 }); 19 t.step(function() { 20 21 var canvas = new OffscreenCanvas(100, 50); 22 var ctx = canvas.getContext('2d'); 23 24 const g = ctx.createConicGradient(-Math.PI/2, 50, 25); 25 // It's red in the upper right region and green on the lower left region 26 g.addColorStop(0, "#f00"); 27 g.addColorStop(0.25, "#0f0"); 28 g.addColorStop(0.50, "#0f0"); 29 g.addColorStop(0.75, "#f00"); 30 ctx.fillStyle = g; 31 ctx.fillRect(0, 0, 100, 50); 32 _assertPixelApprox(canvas, 25,15, 255,0,0,255, 3); 33 _assertPixelApprox(canvas, 75,40, 0,255,0,255, 3); 34 t.done(); 35 36 }); 37 </script>