license import { defer , Observable } from 'rxjs' ; describe ( 'Observable.defer' , ( ) => { let log ; const constructorZone1 = Zone . current . fork ( { name : 'Constructor Zone1' } ) ; const subscriptionZone = Zone . current . fork ( { name : 'Subscription Zone' } ) ; let observable1 ; beforeEach ( ( ) => { log = [ ] ; } ) ; it ( 'defer func callback should run in the correct zone' , ( ) => { observable1 = constructorZone1 . run ( ( ) => { return defer ( ( ) => { return new Observable < number > ( subscribe => { log . push ( 'setup' ) ; expect ( Zone . current . name ) . toEqual ( constructorZone1 . name ) ; subscribe . next ( 1 ) ; subscribe . complete ( ) ; return ( ) => { expect ( Zone . current . name ) . toEqual ( constructorZone1 . name ) ; log . push ( 'cleanup' ) ; } ; } ) ; } ) ; } ) ; subscriptionZone . run ( ( ) => { observable1 . subscribe ( ( result ) => { expect ( Zone . current . name ) . toEqual ( subscriptionZone . name ) ; log . push ( result ) ; } ) ; } ) ; expect ( log ) . toEqual ( [ 'setup' , 1 , 'cleanup' ] ) ; } ) ; } ) ;