2d.imageData.get.source.size.html (1074B)
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.imageData.get.source.size</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.imageData.get.source.size</h1> 10 <p class="desc">getImageData() returns bigger ImageData for bigger source rectangle</p> 11 12 13 <script> 14 var t = async_test("getImageData() returns bigger ImageData for bigger source rectangle"); 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 var imgdata1 = ctx.getImageData(0, 0, 10, 10); 25 var imgdata2 = ctx.getImageData(0, 0, 20, 20); 26 _assert(imgdata2.width > imgdata1.width, "imgdata2.width > imgdata1.width"); 27 _assert(imgdata2.height > imgdata1.height, "imgdata2.height > imgdata1.height"); 28 t.done(); 29 30 }); 31 </script>