const sum = require('./sum'); /* beforeEach(() => { initializeCityDatabase(); }); afterEach(() => { clearCityDatabase(); }); test('city database has Vienna', () => { expect(isCity('Vienna')).toBeTruthy(); }); test('city database has San Juan', () => { expect(isCity('San Juan')).toBeTruthy(); }); */ test("adds 1 + 2 to equal 3", () => { console.log("Running simple test"); expect(sum(1, 2)).toBe(3); });