text: describe("Math", function() {
    it("expm1", function() {
      expect(isNaN(Math.expm1(NaN))).toBe(true);
      expect(Math.expm1(0)).toBe(0);
      expect(1 / Math.expm1(0)).toBe(Infinity);
      expect(Math.expm1(-0)).toBe(-0)
      expect(1 / Math.expm1(-0)).toBe(-Infinity);
      expect(Math.expm1(Infinity)).toBe(Infinity)
      expect(Math.expm1(-Infinity)).toBe(-1);
    });
  });
  