2d.path.arc.scale.2.html (1338B)
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.path.arc.scale.2</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.path.arc.scale.2</h1> 10 <p class="desc">Highly scaled arcs are the right shape</p> 11 12 13 <script> 14 var t = async_test("Highly scaled arcs are the right shape"); 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 = '#f00'; 25 ctx.fillRect(0, 0, 100, 50); 26 ctx.scale(100, 100); 27 ctx.strokeStyle = '#0f0'; 28 ctx.lineWidth = 1.2; 29 ctx.beginPath(); 30 ctx.arc(0, 0, 0.6, 0, Math.PI/2, false); 31 ctx.stroke(); 32 33 _assertPixel(canvas, 1,1, 0,255,0,255); 34 _assertPixel(canvas, 50,1, 0,255,0,255); 35 _assertPixel(canvas, 98,1, 0,255,0,255); 36 _assertPixel(canvas, 1,25, 0,255,0,255); 37 _assertPixel(canvas, 50,25, 0,255,0,255); 38 _assertPixel(canvas, 98,25, 0,255,0,255); 39 _assertPixel(canvas, 1,48, 0,255,0,255); 40 _assertPixel(canvas, 50,48, 0,255,0,255); 41 _assertPixel(canvas, 98,48, 0,255,0,255); 42 t.done(); 43 44 }); 45 </script>