code: def test_P3(self):
      G = nx.path_graph(3)
      self.test(G, 0, 2, [1])
  
imports: import random
  import pytest
  import networkx
  from networkx.utils import edges_equal, nodes_equal
label_desc: Use image node_id 3 for calling the TestCommonNeighbors obj's underlying member method code with example usage: obj.test_P3() without return types