| PASS Sanity test | |
| FAIL elm.focus() without arguments assert_true: expected true got false | |
| FAIL elm.focus(undefined) assert_true: expected true got false | |
| FAIL elm.focus(null) assert_true: expected true got false | |
| FAIL elm.focus({}) assert_true: expected true got false | |
| FAIL elm.focus({preventScroll: false}) assert_true: expected true got false | |
| PASS elm.focus({preventScroll: true}) | |