2d.imageData.get.order.alpha.html (1112B)
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>Canvas test: 2d.imageData.get.order.alpha</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 <link rel="stylesheet" href="/html/canvas/resources/canvas-tests.css"> 9 <body class="show_output"> 10 11 <h1>2d.imageData.get.order.alpha</h1> 12 <p class="desc">getImageData() returns A in the fourth component</p> 13 14 15 <p class="output">Actual output:</p> 16 <canvas id="c" class="output" width="100" height="50"><p class="fallback">FAIL (fallback content)</p></canvas> 17 18 <ul id="d"></ul> 19 <script> 20 var t = async_test("getImageData() returns A in the fourth component"); 21 _addTest(function(canvas, ctx) { 22 23 ctx.fillStyle = 'rgba(0, 0, 0, 0.5)'; 24 ctx.fillRect(0, 0, 100, 50); 25 var imgdata = ctx.getImageData(0, 0, 10, 10); 26 _assert(imgdata.data[3] < 200, "imgdata.data[\""+(3)+"\"] < 200"); 27 _assert(imgdata.data[3] > 100, "imgdata.data[\""+(3)+"\"] > 100"); 28 29 }); 30 </script>