2d.canvas.host.size.large.html (1031B)
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.canvas.host.size.large</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.canvas.host.size.large</h1> 10 <p class="desc"></p> 11 12 <p class="notes">Not sure how reasonable this is, but the spec doesn't say there's an upper limit on the size. 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 var n = 2147483647; // 2^31 - 1, which should be supported by any sensible definition of "long" 25 canvas.width = n; 26 canvas.height = n; 27 _assertSame(canvas.width, n, "canvas.width", "n"); 28 _assertSame(canvas.height, n, "canvas.height", "n"); 29 t.done(); 30 31 }); 32 </script>