fix error from running test:coverage

src/app/components/nodes-view/nodes-view.component.spec.ts

@@ -30,6 +30,9 @@ import { MatPaginatorModule } from '@angular/material/paginator';
 import { MatDividerModule } from '@angular/material/divider';
 import { MatSortModule } from '@angular/material/sort';
 import { MatSelectModule } from '@angular/material/select';
+import { MatFormFieldModule } from '@angular/material/form-field';
+import { MatInputModule } from '@angular/material/input';
+import { ReactiveFormsModule } from '@angular/forms';
 
 describe('NodesViewComponent', () => {
   let component: NodesViewComponent;
@@ -55,6 +58,11 @@ describe('NodesViewComponent', () => {
   });
 
   beforeEach(() => {
+    TestBed.configureTestingModule({
+      declarations: [NodesViewComponent],
+      imports: [MatFormFieldModule, MatInputModule, ReactiveFormsModule],
+    })
+    .compileComponents();
     fixture = TestBed.createComponent(NodesViewComponent);
     component = fixture.componentInstance;
     fixture.detectChanges();

src/app/components/nodes-view/nodes-view.component.ts

@@ -16,13 +16,13 @@
  * limitations under the License.
  */
 
-import { Attribute, Component, OnInit, ViewChild } from '@angular/core';
+import { Component, OnInit, ViewChild } from '@angular/core';
 import { MatPaginator } from '@angular/material/paginator';
 import { MatSelectChange } from '@angular/material/select';
 import { MatSort } from '@angular/material/sort';
 import { MatTableDataSource } from '@angular/material/table';
 import { NgxSpinnerService } from 'ngx-spinner';
-import { finalize, flatMap } from 'rxjs/operators';
+import { finalize } from 'rxjs/operators';
 
 import { SchedulerService } from '@app/services/scheduler/scheduler.service';
 import { NodeInfo } from '@app/models/node-info.model';

src/styles.scss

@@ -95,11 +95,6 @@ body {
   color: #666;
 }
 
-strong {
-  font-weight: 700;
-  color: #333;
-}
-
 p {
   margin: 10px 0;
 }