diff --git a/web/gui2-fw-lib/projects/gui2-fw-lib/src/lib/detectbrowser.directive.spec.ts b/web/gui2-fw-lib/projects/gui2-fw-lib/src/lib/detectbrowser.directive.spec.ts
new file mode 100644
index 0000000..3faa7f1
--- /dev/null
+++ b/web/gui2-fw-lib/projects/gui2-fw-lib/src/lib/detectbrowser.directive.spec.ts
@@ -0,0 +1,77 @@
+/*
+ * 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 { TestBed, inject } from '@angular/core/testing';
+
+import { LogService } from './log.service';
+import { ConsoleLoggerService } from './consolelogger.service';
+import { DetectBrowserDirective } from './detectbrowser.directive';
+import { ActivatedRoute, Params } from '@angular/router';
+import { FnService } from './util/fn.service';
+import { OnosService } from './onos.service';
+import { of } from 'rxjs';
+
+class MockFnService extends FnService {
+    constructor(ar: ActivatedRoute, log: LogService, w: Window) {
+        super(ar, log, w);
+    }
+}
+
+class MockOnosService {}
+
+class MockActivatedRoute extends ActivatedRoute {
+    constructor(params: Params) {
+        super();
+        this.queryParams = of(params);
+    }
+}
+
+/**
+ * ONOS GUI -- Detect Browser Directive - Unit Tests
+ */
+describe('DetectBrowserDirective', () => {
+    let log: LogService;
+    let ar: ActivatedRoute;
+    let mockWindow: Window;
+
+    beforeEach(() => {
+        log = new ConsoleLoggerService();
+        ar = new MockActivatedRoute(['debug', 'DetectBrowserDirective']);
+        mockWindow = <any>{
+            navigator: {
+                userAgent: 'HeadlessChrome',
+                vendor: 'Google Inc.'
+            }
+        };
+
+        TestBed.configureTestingModule({
+            providers: [ DetectBrowserDirective,
+                { provide: FnService, useValue: new MockFnService(ar, log, mockWindow) },
+                { provide: LogService, useValue: log },
+                { provide: OnosService, useClass: MockOnosService },
+                { provide: Document, useValue: document },
+                { provide: 'Window', useFactory: (() => mockWindow ) }
+            ]
+        });
+    });
+
+    afterEach(() => {
+        log = null;
+    });
+
+    it('should create an instance', inject([DetectBrowserDirective], (directive: DetectBrowserDirective) => {
+        expect(directive).toBeTruthy();
+    }));
+});