

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})