diff --git a/web/gui2-topo-lib/projects/gui2-topo-lib/src/lib/layout.service.spec.ts b/web/gui2-topo-lib/projects/gui2-topo-lib/src/lib/layout.service.spec.ts
new file mode 100644
index 0000000..d970993
--- /dev/null
+++ b/web/gui2-topo-lib/projects/gui2-topo-lib/src/lib/layout.service.spec.ts
@@ -0,0 +1,72 @@
+/*
+ * Copyright 2019-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 } from '@angular/core/testing';
+
+import { LayoutService } from './layout.service';
+import {ActivatedRoute, Params} from '@angular/router';
+import {of} from 'rxjs';
+import {FnService, LogService} from 'gui2-fw-lib';
+
+class MockActivatedRoute extends ActivatedRoute {
+    constructor(params: Params) {
+        super();
+        this.queryParams = of(params);
+    }
+}
+
+describe('LayoutService', () => {
+    let logServiceSpy: jasmine.SpyObj<LogService>;
+    let ar: ActivatedRoute;
+    let fs: FnService;
+    let mockWindow: Window;
+
+    beforeEach(() => {
+        const logSpy = jasmine.createSpyObj('LogService', ['debug', 'warn', 'info']);
+        ar = new MockActivatedRoute({'debug': 'TestService'});
+        mockWindow = <any>{
+            innerWidth: 400,
+            innerHeight: 200,
+            navigator: {
+                userAgent: 'defaultUA'
+            },
+            location: <any>{
+                hostname: 'foo',
+                host: 'foo',
+                port: '80',
+                protocol: 'http',
+                search: { debug: 'true' },
+                href: 'ws://foo:123/onos/ui/websock/path',
+                absUrl: 'ws://foo:123/onos/ui/websock/path'
+            }
+        };
+        fs = new FnService(ar, logSpy, mockWindow);
+
+        TestBed.configureTestingModule({
+            providers: [LayoutService,
+                { provide: FnService, useValue: fs},
+                { provide: LogService, useValue: logSpy },
+                { provide: ActivatedRoute, useValue: ar },
+                { provide: 'Window', useFactory: (() => mockWindow ) }
+            ]
+        });
+        logServiceSpy = TestBed.get(LogService);
+    });
+
+    it('should be created', () => {
+        const service: LayoutService = TestBed.get(LayoutService);
+        expect(service).toBeTruthy();
+    });
+});