diff --git a/web/gui2-fw-lib/projects/gui2-fw-lib/src/lib/mast/mast.service.spec.ts b/web/gui2-fw-lib/projects/gui2-fw-lib/src/lib/mast/mast.service.spec.ts
new file mode 100644
index 0000000..ca99af8
--- /dev/null
+++ b/web/gui2-fw-lib/projects/gui2-fw-lib/src/lib/mast/mast.service.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 { TestBed, inject } from '@angular/core/testing';
+
+import { MastService } from './mast.service';
+import { LogService } from '../log.service';
+import { ConsoleLoggerService } from '../consolelogger.service';
+import { FnService } from '../util/fn.service';
+
+class MockFnService {
+    isMobile() {}
+}
+
+/**
+ * ONOS GUI -- Masthead Service - Unit Tests
+ */
+describe('MastService', () => {
+    let log: LogService;
+
+    beforeEach(() => {
+        log = new ConsoleLoggerService();
+
+        TestBed.configureTestingModule({
+            providers: [MastService,
+                { provide: FnService, useClass: MockFnService },
+                { provide: LogService, useValue: log },
+            ]
+        });
+    });
+
+    it('should be created', inject([MastService], (service: MastService) => {
+        expect(service).toBeTruthy();
+    }));
+});