Added d3 force graph to GUI2 topology

Change-Id: I6860472efaf51ea27fad74e630e687f0c6abad3d
diff --git a/web/gui2/src/main/webapp/app/view/topology/layer/forcesvg/visuals/hostnodesvg/hostnodesvg.component.spec.ts b/web/gui2/src/main/webapp/app/view/topology/layer/forcesvg/visuals/hostnodesvg/hostnodesvg.component.spec.ts
new file mode 100644
index 0000000..bb791b9
--- /dev/null
+++ b/web/gui2/src/main/webapp/app/view/topology/layer/forcesvg/visuals/hostnodesvg/hostnodesvg.component.spec.ts
@@ -0,0 +1,25 @@
+import { async, ComponentFixture, TestBed } from '@angular/core/testing';
+
+import { HostNodeSvgComponent } from './hostnodesvg.component';
+
+describe('HostNodeSvgComponent', () => {
+  let component: HostNodeSvgComponent;
+  let fixture: ComponentFixture<HostNodeSvgComponent>;
+
+  beforeEach(async(() => {
+    TestBed.configureTestingModule({
+      declarations: [ HostNodeSvgComponent ]
+    })
+    .compileComponents();
+  }));
+
+  beforeEach(() => {
+    fixture = TestBed.createComponent(HostNodeSvgComponent);
+    component = fixture.componentInstance;
+    fixture.detectChanges();
+  });
+
+  it('should create', () => {
+    expect(component).toBeTruthy();
+  });
+});