class_docstr: Unit tests for the :func:`~networkx.configuration_model`
  function.
class_docstr_tok: ["Unit","tests","for","the",":","func",":","`","~networkx.configuration_model","`","function","."]
docstr: Tests that a degree sequence of all zeros yields the empty
  graph.
docstr_tok: ["Tests","that","a","degree","sequence","of","all","zeros","yields","the","empty","graph","."]
code: def test_degree_zero(self):
      """Tests that a degree sequence of all zeros yields the empty
      graph.
  
      """
      G = nx.configuration_model([0, 0, 0])
      assert len(G) == 3
      assert G.number_of_edges() == 0
  
imports: import pytest
  import networkx
label_desc: Use image node_id 2 for calling the TestConfigurationModel obj's underlying member method code with example usage: obj.test_degree_zero() without return types