import formatMoney, { formatNumber } from "./formatMoney"; describe("Test formatMoney", () => { it("formats numbers", () => { expect(formatNumber(1000)).toBe("1,000.00"); }); it("formats numbers with commas", () => { expect(formatNumber("1,000")).toBe("1,000.00"); }); it("formats null to 0", () => { expect(formatNumber(null)).toBe("0.00"); }); });