public void ShouldIterateDoors2Times()
        {
            //assign
            DoorMan doorMan = new DoorMan();

            //act
            doorMan.WalkDoors(2);
            //assert
            doorMan.OpenDoorCount().Should().Be(50);
        }
        public void ShouldIterateDoors1Time()
        {
            //assign
            DoorMan doorMan = new DoorMan();

            //act
            doorMan.WalkDoors(1);
            //assert
            doorMan.OpenDoorCount().Should().Be(100);
        }