def test_search_fail():
linked_list = LinkedList()
abc = a, b, c = list('abc')
for i in abc:
linked_list.insert(i)
with pytest.raises(FileNotFoundError):
linked_list.search('d')
def test_search():
linked_list = LinkedList()
abc = a, b, c = list('abc')
for i in abc:
linked_list.insert(i)
assert linked_list.search(a).item is a
assert linked_list.search(b).item is b
assert linked_list.search(c).item is c
