text: import pytest
  from .linked_list import LinkedList
  
  
  @pytest.fixture
  def ll1():
      return LinkedList([1, 4, 7])
  
  
  @pytest.fixture
  def ll2():
      return LinkedList([2, 5, 8])
  
  
  @pytest.fixture
  def ll1_one():
      return LinkedList([1])
  
  
  @pytest.fixture
  def ll2_one():
      return LinkedList([2])
  