public void NumberofRoomsWorksOK()
{
#region Arrange
House house = new House();
house.Rooms.Add(new Room { Type = RoomTypes.Bedroom });
house.Rooms.Add(new Room { Type = RoomTypes.Bedroom });
int correctRoomNumber = 2;
int actualRoomCountReturned;
#endregion
#region Act
actualRoomCountReturned = house.NumberOfRooms(RoomTypes.Bedroom);
#endregion
#region Assert
Assert.IsTrue(correctRoomNumber == actualRoomCountReturned);
#endregion
}