import { async, ComponentFixture, TestBed } from '@angular/core/testing'; import { MatIconModule } from '@angular/material'; import { ScrollTopComponent } from './scroll-top.component'; describe('ScrollTopComponent', () => { let component: ScrollTopComponent; let fixture: ComponentFixture<ScrollTopComponent>; beforeEach(async(() => { TestBed.configureTestingModule({ declarations: [ScrollTopComponent], imports: [MatIconModule] }) .compileComponents(); })); beforeEach(() => { fixture = TestBed.createComponent(ScrollTopComponent); component = fixture.componentInstance; fixture.detectChanges(); }); it('should create', () => { expect(component).toBeTruthy(); }); });