license import { TabScroller } from '@material/mwc-tab-scroller/mwc-tab-scroller' ; describe ( 'mwc-tab-scroller' , ( ) => { let element ; beforeEach ( ( ) => { element = document . createElement ( 'mwc-tab-scroller' ) ; document . body . appendChild ( element ) ; } ) ; afterEach ( ( ) => { document . body . removeChild ( element ) ; } ) ; it ( 'initializes as an mwc-tab-scroller' , ( ) => { expect ( element ) . toBeInstanceOf ( TabScroller ) ; } ) ; } ) ;