fixes

Author: csviri

operator-framework-core/src/test/java/io/javaoperatorsdk/operator/processing/event/source/informer/InformerEventSourceTest.java

@@ -257,6 +257,8 @@ void informerStoppedHandlerShouldBeCalledWhenInformerStops() {
             throw exception;
           }));
 
+      // by default informer fails to start if there is an exception in the client on start.
+      // Throws the exception further.
       assertThrows(RuntimeException.class, () -> informerEventSource.start());
       verify(informerStoppedHandler, atLeastOnce()).onStop(any(), eq(exception));
     } finally {