chromium/third_party/blink/web_tests/fast/canvas/path2d-roundrect-nocrash.html

<script src="../../resources/testharness.js"></script>
<script src="../../resources/testharnessreport.js"></script>

<script>
test(function(t) {
  var path2D = new Path2D();
  path2D.roundRect(0, 0, 10, 10, [10]);
}, "path2D does not crash with roundRect. crbug.com/1273971");
</script>
</body>