text: describe("leapYear", function(){
    it("is false for a year that is not divisible by 4, 100, or 400", function(){
      expect(leapYear(1993)).to.equal(false);
    });
  
    it("is true for year divisible by 4", function(){
      expect(leapYear(2004)).to.equal(true);
    });
  
    it("is false for years divisible by 100", function(){
      expect(leapYear(1900)).to.equal(false);
    });
  
    it("is true for years divisible by 400", function(){
      expect(leapYear(2000)).to.equal(true);
    });
  });