test(switchMapTo): expand test coverage for switchMapTo
test(switchMapTo): expand test coverage for switchMapTo

jadbox/RxJS,figueredo/RxJS,SangKa/RxJS-Docs-CN,IgorMinar/RxJS,martinsik/rxjs,martinsik/rxjs,kwonoj/RxJS,elliotschi/rxjs,jayphelps/rxjs,justinwoo/RxJS,staltz/RxJSNext,figueredo/RxJS,jinroh/RxJS,gluck/RxJS,robwormald/RxJS,adrianomelo/RxJSNext,gluck/RxJS,jadbox/RxJS,jinroh/RxJS,adrianomelo/RxJSNext,Brocco/RxJS,gluck/RxJS,robwormald/RxJS,benlesh/RxJS,Igorbek/rxjs5,elliotschi/rxjs,IgorMinar/RxJS,Brocco/RxJS,jadbox/RxJS,Igorbek/rxjs5,SangKa/RxJS-Docs-CN,adrianomelo/RxJS-1,Brocco/RxJS,ReactiveX/rxjs,jadbox/RxJS,jayphelps/rxjs,justinwoo/RxJS,jayphelps/rxjs,benlesh/RxJS,robwormald/RxJS,adrianomelo/RxJS-1,RxJS-CN/RxJS-Docs-CN,ReactiveX/rxjs,trxcllnt/RxJS,jinroh/RxJS,benlesh/RxJS,figueredo/RxJS,trxcllnt/RxJS,adrianomelo/RxJSNext,mattpodwysocki/RxJS,justinwoo/RxJS,ReactiveX/RxJS,saneyuki/RxJS,Igorbek/rxjs5,ReactiveX/rxjs,gluck/RxJS,kwonoj/RxJS,adrianomelo/RxJS-1,benlesh/RxJS,RxJS-CN/RxJS-Docs-CN,ReactiveX/RxJS,Igorbek/rxjs5,kwonoj/RxJS,ReactiveX/RxJS,jayphelps/rxjs,trxcllnt/RxJS,kwonoj/RxJS,SangKa/RxJS-Docs-CN,adrianomelo/RxJSNext,mattpodwysocki/RxJS,trxcllnt/RxJS,mattpodwysocki/RxJS,saneyuki/RxJS,figueredo/RxJS,adrianomelo/RxJS-1,staltz/RxJSNext,staltz/RxJSNext,elliotschi/rxjs,martinsik/rxjs,SangKa/RxJS-Docs-CN,RxJS-CN/RxJS-Docs-CN,martinsik/rxjs,RxJS-CN/RxJS-Docs-CN,jinroh/RxJS,ReactiveX/rxjs,mattpodwysocki/RxJS,elliotschi/rxjs,staltz/RxJSNext,justinwoo/RxJS,jayphelps/rxjs,ReactiveX/RxJS,Brocco/RxJS,robwormald/RxJS