chore(util-registry.spec): added a test for destroyAll Method

frontend/src/services/util-registry/util-registry.js

@@ -103,8 +103,10 @@ export class UtilRegistry {
     utilsInScope.forEach((util) => {
       //if(DEBUG_MODE > 2) {
       console.log('Destroying Util: ', {util});
-      //}
+      //}#
+      let utilIndex = this._activeUtilInstancesWrapped.indexOf(util);
       util.destroy();
+      this._activeUtilInstancesWrapped.splice(utilIndex, 1);
     });
   }
 

frontend/src/services/util-registry/util-registry.spec.js

@@ -199,6 +199,44 @@ describe('UtilRegistry', () => {
       });
     });
   });
+
+  describe('destroyAll()', () => {
+    let testScope;
+    let testElement;
+    let firstUtil;
+  
+    beforeEach( () => {
+      testScope = document.createElement('div');
+      testElement = document.createElement('div');
+      testElement.classList.add('util3');
+      testScope.appendChild(testElement);
+
+      utilRegistry.register(TestUtil3);
+      utilRegistry.initAll(testScope);
+
+      firstUtil = utilRegistry._activeUtilInstancesWrapped[0];
+      spyOn(firstUtil.instance, 'destroy');
+    });
+  
+    it('Util should be destroyed', () => {
+      utilRegistry.destroyAll(testScope);
+      expect(utilRegistry._activeUtilInstancesWrapped.length).toBe(0);
+      expect(firstUtil.instance.destroy).toHaveBeenCalled();
+    });
+  
+    it('Util out of scope should not be destroyed', () => {
+      let outOfScope = document.createElement('div');
+      expect(utilRegistry._activeUtilInstancesWrapped.length).toEqual(1);
+
+      utilRegistry.destroyAll(outOfScope);
+
+      expect(utilRegistry._activeUtilInstancesWrapped.length).toEqual(1);
+      expect(utilRegistry._activeUtilInstancesWrapped[0]).toBe(firstUtil);
+      expect(firstUtil.instance.destroy).not.toHaveBeenCalled();
+
+    });
+  });
+
 });
 
 // test utilities
@@ -219,6 +257,7 @@ class TestUtil2 { }
 class TestUtil3 {
   constructor() {}
   start() {}
+  destroy() {}
 }
 
 @Utility({ selector: '#throws' })