docstr: Case of equal nodes.
docstr_tok: ["Case","of","equal","nodes","."]
code: def test_custom2(self):
      """Case of equal nodes."""
      G = nx.complete_graph(4)
      self.test(G, 0, 0, [1, 2, 3])
  
imports: import random
  import pytest
  import networkx
  from networkx.utils import edges_equal, nodes_equal
label_desc: Use image node_id 8 for calling the TestCommonNeighbors obj's underlying member method code with example usage: obj.test_custom2() without return types