First part of migrating Topo2 to GUI2

Change-Id: I316dd34cba161688e01dfb7b340bff5f2c3c57d4
diff --git a/web/gui2/src/main/webapp/app/view/topology/topology.service.spec.ts b/web/gui2/src/main/webapp/app/view/topology/topology.service.spec.ts
new file mode 100644
index 0000000..ca8711a
--- /dev/null
+++ b/web/gui2/src/main/webapp/app/view/topology/topology.service.spec.ts
@@ -0,0 +1,39 @@
+/*
+ * 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, ConsoleLoggerService } from 'gui2-fw-lib';
+import { TopologyService } from './topology.service';
+
+/**
+ * ONOS GUI -- Topology Service - Unit Tests
+ */
+describe('TopologyService', () => {
+    let log: LogService;
+
+    beforeEach(() => {
+        log = new ConsoleLoggerService();
+
+        TestBed.configureTestingModule({
+            providers: [TopologyService,
+                { provide: LogService, useValue: log },
+            ]
+        });
+    });
+
+    it('should be created', inject([TopologyService], (service: TopologyService) => {
+        expect(service).toBeTruthy();
+    }));
+});