def test_linked_list_has_loop():
user_input = '1,2,3,4,5'
linked_list = LLOperations.make_my_linked_list(user_input)
assert LLOperations.linked_list_has_loop(linked_list) is False
LLOperations.create_loop(linked_list, 3)
assert LLOperations.linked_list_has_loop(linked_list) is True
def test_tail_deletion():
user_input = '1,2,3,4,5'
linked_list = LLOperations.make_my_linked_list(user_input)
LLOperations.print_my_linked_list(linked_list)
LLOperations.delete_node(linked_list, 5)
LLOperations.print_my_linked_list(linked_list)
def test_reversing_linked_list():
user_input = '1,2,3,4,5'
linked_list = LLOperations.make_my_linked_list(user_input)
LLOperations.print_my_linked_list(linked_list)
LLOperations.reverse_a_linked_list(linked_list)
LLOperations.print_my_linked_list(linked_list)
def test_loop_removal():
user_input = '1,2,3,4,5'
linked_list = LLOperations.make_my_linked_list(user_input)
LLOperations.print_my_linked_list(linked_list)
LLOperations.create_loop(linked_list, 1)
assert LLOperations.linked_list_has_loop(linked_list) is True
assert LLOperations.get_length_of_loop(linked_list) == 5
LLOperations.remove_loop(linked_list)
assert LLOperations.linked_list_has_loop(linked_list) is False
LLOperations.print_my_linked_list(linked_list)
def test_linked_list_loop_length_5():
user_input = '1,2,3,4,5'
linked_list = LLOperations.make_my_linked_list(user_input)
assert LLOperations.get_length_of_loop(linked_list) == 0
LLOperations.create_loop(linked_list, 1)
assert LLOperations.get_length_of_loop(linked_list) == 5