2d.layer.invalid-calls.save-beginLayer-restore.html (805B)
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.layer.invalid-calls.save-beginLayer-restore</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.layer.invalid-calls.save-beginLayer-restore</h1> 10 <p class="desc">Raises exception on save() + beginLayer() + restore().</p> 11 12 13 <script> 14 test(t => { 15 var canvas = new OffscreenCanvas(100, 50); 16 var ctx = canvas.getContext('2d'); 17 18 assert_throws_dom("INVALID_STATE_ERR", function() { 19 ctx.save(); 20 ctx.beginLayer(); 21 ctx.restore(); 22 }); 23 24 }, "Raises exception on save() + beginLayer() + restore()."); 25 </script>