test_2d.line.cap.closed.html (1508B)
1 <!DOCTYPE HTML> 2 <title>Canvas test: 2d.line.cap.closed</title> 3 <!-- Testing: Line caps are not drawn at the corners of an unclosed rectangle --> 4 <script src="/tests/SimpleTest/SimpleTest.js"></script> 5 <link rel="stylesheet" href="/tests/SimpleTest/test.css"> 6 <body> 7 <canvas id="c" width="100" height="50"><p class="fallback">FAIL (fallback content)</p></canvas> 8 <script> 9 function isPixel(ctx, x,y, r,g,b,a, pos, colour, d) { 10 var pixel = ctx.getImageData(x, y, 1, 1); 11 var pr = pixel.data[0], 12 pg = pixel.data[1], 13 pb = pixel.data[2], 14 pa = pixel.data[3]; 15 ok(r-d <= pr && pr <= r+d && 16 g-d <= pg && pg <= g+d && 17 b-d <= pb && pb <= b+d && 18 a-d <= pa && pa <= a+d, 19 "pixel "+pos+" is "+pr+","+pg+","+pb+","+pa+"; expected "+colour+" +/- "+d); 20 } 21 22 SimpleTest.waitForExplicitFinish(); 23 addLoadEvent(function () { 24 25 var canvas = document.getElementById('c'); 26 var ctx = canvas.getContext('2d'); 27 28 ctx.fillStyle = '#0f0'; 29 ctx.strokeStyle = '#f00'; 30 ctx.fillRect(0, 0, 100, 50); 31 32 ctx.lineJoin = 'bevel'; 33 ctx.lineCap = 'square'; 34 ctx.lineWidth = 400; 35 36 ctx.beginPath(); 37 ctx.moveTo(200, 200); 38 ctx.lineTo(200, 1000); 39 ctx.lineTo(1000, 1000); 40 ctx.lineTo(1000, 200); 41 ctx.closePath(); 42 ctx.stroke(); 43 44 isPixel(ctx, 1,1, 0,255,0,255, "1,1", "0,255,0,255", 0); 45 isPixel(ctx, 48,1, 0,255,0,255, "48,1", "0,255,0,255", 0); 46 isPixel(ctx, 48,48, 0,255,0,255, "48,48", "0,255,0,255", 0); 47 isPixel(ctx, 1,48, 0,255,0,255, "1,48", "0,255,0,255", 0); 48 49 SimpleTest.finish(); 50 51 }); 52 </script>