class_docstr: Test RDKitDescriptors.
docstr: Set up tests.
code: def setUp(self):
      """
      Set up tests.
      """
      from rdkit.Chem import Descriptors
  
      self.all_descriptors = Descriptors.descList
      self.all_desc_count = len(self.all_descriptors)
      self.smiles = "CC(=O)OC1=CC=CC=C1C(=O)O"
  
file_path: deepchem/deepchem/feat/tests/test_rdkit_descriptors.py
imports: import numpy
  import unittest
  from deepchem.feat import RDKitDescriptors
label_desc: Use image node_id 1 for calling the TestRDKitDescriptors obj's underlying member method code with example usage: obj.setUp() without return types