fix(testscheduler): do not expose advance_ interface

Author: kwonoj

src/index.ts

@@ -1,4 +1,6 @@
 import { Observable } from 'rxjs/Observable';
+import { ColdObservable } from 'rxjs/testing/ColdObservable';
+import { HotObservable } from 'rxjs/testing/HotObservable';
 import { SubscriptionLog } from 'rxjs/testing/SubscriptionLog';
 import { parseObservableMarble } from './marbles/parseObservableMarble';
 import { parseSubscriptionMarble } from './marbles/parseSubscriptionMarble';
@@ -8,6 +10,8 @@ import { TestScheduler } from './scheduler/TestScheduler';
 //workaround TS4029 by explicitly import types and avoid unused import error
 (() => Observable.toString())();
 (() => SubscriptionLog.toString())();
+(() => ColdObservable.toString())();
+(() => HotObservable.toString())();
 
 const rxSandbox = {
   create: (autoFlush: boolean = false, frameTimeFactor: number = 1) => {
@@ -17,8 +21,6 @@ const rxSandbox = {
       hot: scheduler.createHotObservable.bind(scheduler) as typeof scheduler.createHotObservable,
       cold: scheduler.createColdObservable.bind(scheduler) as typeof scheduler.createColdObservable,
       flush: scheduler.flush.bind(scheduler) as typeof scheduler.flush,
-      advanceBy: scheduler.advanceBy.bind(scheduler) as typeof scheduler.advanceBy,
-      advanceTo: scheduler.advanceTo.bind(scheduler) as typeof scheduler.advanceTo,
       getMarbles: scheduler.getMarbles.bind(scheduler) as typeof scheduler.getMarbles,
       e: <T = string>(marble: string, value?: { [key: string]: T } | null, error?: any) =>
         parseObservableMarble(marble, value, error, true, frameTimeFactor),

src/scheduler/TestScheduler.ts

@@ -65,14 +65,6 @@ class TestScheduler extends VirtualTimeScheduler {
     return observableMetadata;
   }
 
-  public advanceBy(_frameTime: number): void {
-    throw new Error('not implemented');
-  }
-
-  public advanceTo(_frameTime: number): void {
-    throw new Error('not implemented');
-  }
-
   public createColdObservable<T = string>(marble: string, value?: { [key: string]: T }, error?: any): ColdObservable<T>;
   public createColdObservable<T = string>(message: Array<TestMessage<T>>): ColdObservable<T>;
   public createColdObservable<T = string>(...args: Array<any>): ColdObservable<T> {