test("basic functionality", () => { expect(Math.asinh).toHaveLength(1); expect(Math.asinh(0)).toBeCloseTo(0); expect(Math.asinh(1)).toBeCloseTo(0.881373); expect(Math.asinh(NaN)).toBe(NaN); expect(Math.asinh(Number.POSITIVE_INFINITY)).toBe(Number.POSITIVE_INFINITY); expect(Math.asinh(Number.NEGATIVE_INFINITY)).toBe(Number.NEGATIVE_INFINITY); expect(Math.asinh(0.0)).toBe(0.0); expect(Math.asinh(-0.0)).toBe(-0.0); });