Fix bad unit test

- no further events expected after unsubscribe

Author: benjchristensen

language-adaptors/rxjava-scala/src/examples/scala/rx/lang/scala/examples/TestSchedulerExample.scala

@@ -35,11 +35,14 @@ class TestSchedulerExample extends JUnitSuite {
     verify(observer, never).onCompleted()
     verify(observer, never).onError(any(classOf[Throwable]))
 
+    verify(observer, never).onNext(2L)
+    
     sub.unsubscribe();
+
     scheduler.advanceTimeTo(4 seconds)
-    verify(observer, never).onNext(2L)
-    verify(observer, times(1)).onCompleted()
-    verify(observer, never).onError(any(classOf[Throwable]))
+    
+    // after unsubscription we expect no further events
+    verifyNoMoreInteractions(observer)
   }
 
 }