test("basic functionality", () => { expect(Math.sinh).toHaveLength(1); expect(Math.sinh(0)).toBe(0); expect(Math.sinh(1)).toBeCloseTo(1.1752011936438014); expect(Math.sinh(NaN)).toBe(NaN); expect(Math.sinh(Number.POSITIVE_INFINITY)).toBe(Number.POSITIVE_INFINITY); expect(Math.sinh(Number.NEGATIVE_INFINITY)).toBe(Number.NEGATIVE_INFINITY); expect(Math.sinh(-0.0)).toBe(-0.0); });