text: describe("Plane", function() {
    var plane = new Plane()
  
    it('Can see if a plane is flying or landed', function() {
      expect(plane.isFlying()).toBe(true);
    });
    it('landing a plane should change flying status to false', function() {
      plane.land();
      expect(plane.isFlying()).toBe(false);
    });
    it('should change flying to true', function() {
      plane.land();
      plane.takeOff();
      expect(plane.isFlying()).toBe(true);
    });
  });
  