docstr: Tests that the subgraph has the correct nodes.
code: def test_correct_nodes(self):
      """Tests that the subgraph has the correct nodes."""
      assert [
          (0, "node0"),
          (1, "node1"),
          (3, "node3"),
          (4, "node4"),
      ] == sorted(self.H.nodes.data("name"))
  
imports: import pytest
  import networkx
  from networkx.utils import edges_equal
label_desc: Use image node_id 2 for calling the TestEdgeSubGraph obj's underlying member method code with example usage: obj.test_correct_nodes() without return types