src/app/error_handling/not-found/not-found.component.spec.ts

import { ComponentFixture, TestBed } from '@angular/core/testing';

import { NotFoundComponent } from './not-found.component';

describe('NotFoundComponent', () => {
  let component: NotFoundComponent;
  let fixture: ComponentFixture<NotFoundComponent>;

  beforeEach(async () => {
    await TestBed.configureTestingModule({
      imports: [NotFoundComponent]
    })
    .compileComponents();
    
    fixture = TestBed.createComponent(NotFoundComponent);
    component = fixture.componentInstance;
    fixture.detectChanges();
  });

  it('should create', () => {
    expect(component).toBeTruthy();
  });
});