Unit test case updation.

Author: ishwaryamamidi

client/src/app/dashboard/dashboard-overview/dashboard-overview.component.spec.ts

@@ -24,6 +24,7 @@ import { DashboardCardComponent } from '../dashboard-card/dashboard-card.compone
 import { RouterModule } from '@angular/router';
 import { MaterialModule } from '../../material-module/material.module';
 import { InforCenterComponent } from '../infor-center/infor-center.component';
+import { GraphViewModule} from '../graph-view/graph-view.module';
 import { DashboardOverviewComponent } from './dashboard-overview.component';
 
 describe('DashboardOverviewComponent', () => {
@@ -33,7 +34,7 @@ describe('DashboardOverviewComponent', () => {
   beforeEach(async(() => {
     TestBed.configureTestingModule({
       declarations: [ DashboardOverviewComponent, DashboardCardComponent, StatusCardComponent, InforCenterComponent],
-      imports: [RouterModule, HttpClientModule, RouterTestingModule, MaterialModule]
+      imports: [RouterModule, HttpClientModule, RouterTestingModule, MaterialModule, GraphViewModule]
     })
     .compileComponents();
   }));