diff --git a/web/gui2/src/main/webapp/app/view/topology/layer/zoomable.directive.spec.ts b/web/gui2/src/main/webapp/app/view/topology/layer/zoomable.directive.spec.ts
new file mode 100644
index 0000000..f298bf5
--- /dev/null
+++ b/web/gui2/src/main/webapp/app/view/topology/layer/zoomable.directive.spec.ts
@@ -0,0 +1,47 @@
+/*
+ * Copyright 2018-present Open Networking Foundation
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+import { ZoomableDirective } from './zoomable.directive';
+import {inject, TestBed} from '@angular/core/testing';
+import {LogService, ConsoleLoggerService} from 'gui2-fw-lib';
+import {ElementRef} from '@angular/core';
+
+describe('ZoomableDirective', () => {
+    let log: LogService;
+    let mockWindow: Window;
+
+    beforeEach(() => {
+        log = new ConsoleLoggerService();
+
+        mockWindow = <any>{
+            navigator: {
+                userAgent: 'HeadlessChrome',
+                vendor: 'Google Inc.'
+            }
+        };
+
+        TestBed.configureTestingModule({
+            providers: [ZoomableDirective,
+                {provide: LogService, useValue: log},
+                { provide: ElementRef, useValue: mockWindow }
+            ]
+        });
+    });
+
+    it('should create an instance', inject([ZoomableDirective], (directive: ZoomableDirective) => {
+
+        expect(directive).toBeTruthy();
+    }));
+});