old_contents: """
  Test basic molecular features.
  """
  import numpy as np
  import unittest
  
  from rdkit import Chem
  
  from deepchem.feat.basic import MolecularWeight, RDKitDescriptors
  
  
  class TestMolecularWeight(unittest.TestCase):
    """
    Test MolecularWeight.
    """
  
    def setUp(self):
      """
      Set up tests.
      """
      smiles = 'CC(=O)OC1=CC=CC=C1C(=O)O'
      self.mol = Chem.MolFromSmiles(smiles)
      self.engine = MolecularWeight()
  
    def testMW(self):
      """
      Test MW.
      """
      assert np.allclose(self.engine([self.mol]), 180, atol=0.1)
  
  
  class TestRDKitDescriptors(unittest.TestCase):
    """
    Test RDKitDescriptors.
    """
  
    def setUp(self):
      """
      Set up tests.
      """
      smiles = 'CC(=O)OC1=CC=CC=C1C(=O)O'
      self.mol = Chem.MolFromSmiles(smiles)
      self.engine = RDKitDescriptors()
  
    def testRDKitDescriptors(self):
      """
      Test simple descriptors.
      """
      descriptors = self.engine([self.mol])
      print(descriptors)
      print(descriptors[0, self.engine.descriptors.index('ExactMolWt')])
      assert np.allclose(
          descriptors[0, self.engine.descriptors.index('ExactMolWt')],
          180,
          atol=0.1)
  
new_contents: """
  Test basic molecular features.
  """
  import numpy as np
  import unittest
  
  from rdkit import Chem
  
  from deepchem.feat.basic import MolecularWeight, RDKitDescriptors
  
  
  class TestMolecularWeight(unittest.TestCase):
    """
    Test MolecularWeight.
    """
  
    def setUp(self):
      """
      Set up tests.
      """
      smiles = 'CC(=O)OC1=CC=CC=C1C(=O)O'
      self.mol = Chem.MolFromSmiles(smiles)
      self.engine = MolecularWeight()
  
    def testMW(self):
      """
      Test MW.
      """
      assert np.allclose(self.engine([self.mol]), 180, atol=0.1)
  
  
  class TestRDKitDescriptors(unittest.TestCase):
    """
    Test RDKitDescriptors.
    """
  
    def setUp(self):
      """
      Set up tests.
      """
      smiles = 'CC(=O)OC1=CC=CC=C1C(=O)O'
      self.mol = Chem.MolFromSmiles(smiles)
      self.engine = RDKitDescriptors()
  
    def testRDKitDescriptors(self):
      """
      Test simple descriptors.
      """
      descriptors = self.engine([self.mol])
      assert np.allclose(
          descriptors[0, self.engine.descriptors.index('ExactMolWt')],
          180,
          atol=0.1)
  
subject: Remove print debug statement