2d.state.saverestore.underflow.html (921B)
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.state.saverestore.underflow</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.state.saverestore.underflow</h1> 10 <p class="desc">restore() with an empty stack has no effect</p> 11 12 13 <script> 14 var t = async_test("restore() with an empty stack has no effect"); 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 for (var i = 0; i < 16; ++i) 25 ctx.restore(); 26 ctx.lineWidth = 0.5; 27 ctx.restore(); 28 _assertSame(ctx.lineWidth, 0.5, "ctx.lineWidth", "0.5"); 29 t.done(); 30 31 }); 32 </script>