def test_get_newest_returns_newest_item():
item_a = Decor(age=2)
item_b = Electronics(age=7)
item_c = Clothing(age=0.5)
johannes = Vendor(inventory=[item_a, item_b, item_c])
result = johannes.get_newest()
assert result is item_c
def test_get_newest_with_duplicates():
item_a = Clothing(age=10)
item_b = Clothing(age=6)
item_c = Clothing(age=6)
tai = Vendor(inventory=[item_a, item_b, item_c])
newest_item = tai.get_newest()
assert newest_item.age == 6
assert newest_item == item_b
def test_get_newest():
item_a = Clothing(age=0)
item_b = Decor(age=5)
item_c = Clothing(age=6)
item_d = Decor(age=2)
sal = Vendor(inventory=[item_a, item_b, item_c, item_d])
newest_item = sal.get_newest()
assert newest_item.category == "Clothing"
assert newest_item.age == 0
def test_get_newest():
item_a = Clothing(age=2)
item_b = Decor(age=14)
item_c = Clothing(age=20)
item_d = Decor(age=5)
item_e = Clothing(age=85)
tai = Vendor(inventory=[item_a, item_b, item_c, item_d, item_e])
best_item = tai.get_newest()
assert best_item.age == 2
def test_get_newest_returns_youngest():
item_a = Clothing(age=6)
item_b = Decor(age=2)
item_c = Clothing(age=1)
item_d = Decor(age=10)
item_e = Clothing(age=3)
tai = Vendor(inventory=[item_a, item_b, item_c, item_d, item_e])
newest_item = tai.get_newest()
assert newest_item == item_c
assert newest_item.age == 1
def test_get_newest():
item_a = Clothing(age=2)
item_b = Decor(age=3)
item_c = Clothing(age=4)
item_d = Decor(age=5)
item_e = Clothing(age=3)
tai = Vendor(inventory=[item_a, item_b, item_c, item_d, item_e])
newest_item = tai.get_newest()
assert newest_item.category == "Clothing"
assert newest_item.age == pytest.approx(2)
def test_swap_by_newest():
item_a = Decor(age=25)
item_b = Electronics(age=10)
item_c = Decor(age=4)
tai = Vendor(inventory=[item_a, item_b, item_c])
item_d = Clothing(age=17)
item_e = Decor(age=5)
item_f = Clothing(age=20)
jesse = Vendor(inventory=[item_d, item_e, item_f])
tai_newest = tai.get_newest()
jesse_newest = jesse.get_newest()
result = tai.swap_by_newest(jesse)
assert result is True
assert len(tai.inventory) is 3
assert len(jesse.inventory) is 3
assert item_c not in tai.inventory
assert item_e in tai.inventory
assert item_e not in jesse.inventory
assert item_c in jesse.inventory
def test_get_newest_returns_none_with_empty_inventory():
johannes = Vendor()
result = johannes.get_newest()
assert result is None
