public void Add_items_in_world()
{
var WorldItems = new WorldItem();
string[,] Items = WorldItems.AddItems();
string ItemName = "Steel helmet";
string ItemName2 = "Leather plastron";
Assert.That(Items[0, 0], Is.SameAs(ItemName));
Assert.That(Items[1, 1], Is.SameAs(ItemName2));
}