public void ItCanCreateADungeonWithXSizeAndYSize()
{
const int x = 12;
const int y = 9;
var dungeon = _dungeonFactory.CreateWithXSizeAndYSize(x, y);
Assert.IsAssignableFrom <IDungeon>(dungeon);
Assert.Equal(x * y, dungeon.Rooms.Count);
Assert.Equal(x, dungeon.XSize);
Assert.Equal(y, dungeon.YSize);
}