bugfix: unit tests

src/ui/regionalFeatures/regionGetAllFeatures.directive.ts

 import { Directive, EventEmitter, OnDestroy, OnInit, Output } from "@angular/core";
 import { Subscription } from "rxjs";
+import { RegionalFeaturesService } from "./regionalFeature.service";
 import { RegionFeatureBase } from "./regionFeature.base";
 
 @Directive({
@@ -13,6 +14,16 @@ export class RegionGetAllFeaturesDirective extends RegionFeatureBase implements
 
   private subscriptions: Subscription[] = []
 
+  /**
+   * since the base class has DI
+   * sub class needs to call super() with the correct DI
+   */
+  constructor(
+    rfService: RegionalFeaturesService
+  ){
+    super(rfService)
+  }
+
   ngOnInit(){
     this.subscriptions.push(
       this.isLoading$.subscribe(val => {