def test_LinkedList_insert_after_multiple_arg_large_link():
ll = LinkedList()
ll.insert("apples", "kiwi", "coconut", "pineapple")
ll.insert_after("kiwi", "1", "2", "3")
actual = str(ll)
expected = "{pineapple} -> {coconut} -> {kiwi} -> {3} -> {2} -> {1} -> {apples} -> NULL"
assert actual == expected
def test_LinkedList_insert_after_multiple_arg_single_link():
ll = LinkedList()
ll.insert("apples")
ll.insert_after("apples", "1", "2", "3")
actual = str(ll)
expected = "{apples} -> {3} -> {2} -> {1} -> NULL"
assert actual == expected
def test_LinkedList_insert_after_single_list():
ll = LinkedList()
ll.insert("apples")
ll.insert_after("apples", "1")
actual = str(ll)
expected = "{apples} -> {1} -> NULL"
assert actual == expected
def test_LinkedList_insert_after_single_new_value():
ll = LinkedList()
ll.insert("oranges", "kiwi", "bananas")
ll.insert_after("kiwi", "1")
actual = str(ll)
expected = "{bananas} -> {kiwi} -> {1} -> {oranges} -> NULL"
assert actual == expected
def test_LinkedList_insert_after_empty_list():
ll = LinkedList()
actual = ll.insert_after("kiwi", "1")
expected = "Exception"
assert actual == expected
