code: def test_featurize(self):
      current_dir = os.path.dirname(os.path.realpath(__file__))
      sdf_file = os.path.join(current_dir, "data", "water.sdf")
      pdb_file = os.path.join(
          current_dir, "data", "3zso_ligand_hyd.pdb"
      )
      smiles = "CCC"
      featurizer = dc.feat.AtomicConformationFeaturizer()
      features = featurizer.featurize([sdf_file, pdb_file, smiles])
      assert len(features) == 3
  
      # Check the SDF file.
  
      assert features[0].num_atoms == 60
      assert features[0].atomic_number[0] == 8
      assert features[0].atomic_number[1] == 1
      assert np.all(features[0].formal_charge == 0)
      for i in range(60):
          assert (features[0].partial_charge[i] < 0) == (i % 3 == 0)
  
      # Check the PDB file.
  
      assert features[1].num_atoms == 47
      assert features[1].atomic_number[0] == 6
      assert features[1].atomic_number[35] == 7
      assert features[1].atomic_number[46] == 1
      for i in range(47):
          if i == 36:
              assert features[1].formal_charge[i] == 1
          else:
              assert features[1].formal_charge[i] == 0
          if features[1].atomic_number[i] in (
              7,
              8,
          ):  # N and O should be negative
              assert features[1].partial_charge[i] < 0
          elif (
              features[1].atomic_number[i] == 1
          ):  # H should be positive
              assert features[1].partial_charge[i] > 0
  
      # Check the SMILES string.
  
      assert features[2].num_atoms == 11
      assert sum(features[2].atomic_number == 6) == 3
      assert sum(features[2].atomic_number == 1) == 8
      assert np.all(features[2].formal_charge == 0)
      for i in range(11):
          assert (features[2].partial_charge[i] < 0) == (
              features[2].atomic_number[i] == 6
          )
  
imports: import deepchem
  import numpy
  import os
  import unittest
label_desc: Use image node_id 1 for calling the TestAtomicConformation obj's underlying member method code with example usage: obj.test_featurize() without return types