import { formatParams } from "../formatParams"; [ // [{}, ""], [{ year: 2017 }, "from=2017-01-01&to=2017-12-31"], [{ from: new Date("2017-12-03") }, "from=2017-12-03"], [{ from: "2017-12-03" }, "from=2017-12-03"], [{ to: "2017-12-03" }, "to=2017-12-03"], ].forEach(([params, res]) => it(`should format ${JSON.stringify(params)}`, () => { expect(formatParams(params)).toBe(res); }) ); it("should fail if the date is in the future", () => { expect(() => formatParams({ to: new Date() })).toThrow(Error); });