test(Observable): add test cases for png diagram for create()
test(Observable): add test cases for png diagram for create()

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