2d.canvas.context.arguments.missing.html (804B)
1 <!DOCTYPE html> 2 <!-- DO NOT EDIT! This test has been generated by /html/canvas/tools/gentest.py. --> 3 <title>OffscreenCanvas test: 2d.canvas.context.arguments.missing</title> 4 <script src="/resources/testharness.js"></script> 5 <script src="/resources/testharnessreport.js"></script> 6 <script src="/html/canvas/resources/canvas-tests.js"></script> 7 8 <h1>2d.canvas.context.arguments.missing</h1> 9 <p class="desc"></p> 10 11 12 <script> 13 var t = async_test(""); 14 var t_pass = t.done.bind(t); 15 var t_fail = t.step_func(function(reason) { 16 throw reason; 17 }); 18 t.step(function() { 19 20 var canvas = new OffscreenCanvas(100, 50); 21 var ctx = canvas.getContext('2d'); 22 23 var offscreenCanvas2 = new OffscreenCanvas(100, 50); 24 assert_throws_js(TypeError, function() { offscreenCanvas2.getContext(); }); 25 t.done(); 26 27 }); 28 </script>