2d.gradient.interpolate.zerosize.stroke.html (1375B)
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.interpolate.zerosize.stroke</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.interpolate.zerosize.stroke</h1> 10 <p class="desc"></p> 11 12 13 <script> 14 var t = async_test(""); 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 ctx.fillStyle = '#0f0'; 25 ctx.fillRect(0, 0, 100, 50); 26 27 var g = ctx.createLinearGradient(50, 25, 50, 25); // zero-length line (undefined direction) 28 g.addColorStop(0, '#f00'); 29 g.addColorStop(1, '#f00'); 30 ctx.strokeStyle = g; 31 ctx.rect(20, 20, 60, 10); 32 ctx.stroke(); 33 _assertPixel(canvas, 19,19, 0,255,0,255); 34 _assertPixel(canvas, 20,19, 0,255,0,255); 35 _assertPixel(canvas, 21,19, 0,255,0,255); 36 _assertPixel(canvas, 19,20, 0,255,0,255); 37 _assertPixel(canvas, 20,20, 0,255,0,255); 38 _assertPixel(canvas, 21,20, 0,255,0,255); 39 _assertPixel(canvas, 19,21, 0,255,0,255); 40 _assertPixel(canvas, 20,21, 0,255,0,255); 41 _assertPixel(canvas, 21,21, 0,255,0,255); 42 t.done(); 43 44 }); 45 </script>