import uidGenerator from "../uidGenerator"; const testId = uidGenerator(); describe("Testing uidGenerator", () => { test("uidGenerator does not return null, undefined or falsy", () => { expect(testId).not.toBeFalsy(); expect(testId).not.toBeUndefined(); expect(testId).not.toBeNull(); }); test("uidGenerator should return a string", () => { expect(testId).toBeTypeOf("string"); }); });