export default { skip_if_ssr : true , async test ( { assert , component , target , raf } ) { const frame = target . querySelector ( 'iframe' ) ; await Promise . resolve ( ) ; component . visible = true ; const div = frame . contentDocument . querySelector ( 'div' ) ; raf . tick ( 25 ) ; component . visible = false ; raf . tick ( 26 ) ; assert . ok ( ~ div . style . animation . indexOf ( '25ms' ) ) ; } } ;