import { TestBed } from '@angular/core/testing'; import { ResolveFn } from '@angular/router'; import { Period } from './period'; import { periodResolver } from './period.resolver'; describe('periodResolver', () => { const executeResolver: ResolveFn = (...resolverParameters) => TestBed.runInInjectionContext(() => periodResolver(...resolverParameters)); beforeEach(() => { TestBed.configureTestingModule({}); }); it('should be created', () => { expect(executeResolver).toBeTruthy(); }); });