class_docstr: Tests for CoulombMatrixEig.
class_docstr_tok: ["Tests","for","CoulombMatrixEig","."]
docstr: Test padding of CoulombMatixEig
docstr_tok: ["Test","padding","of","CoulombMatixEig"]
code: def test_coulomb_matrix_eig_padding(self):
      """
      Test padding of CoulombMatixEig
      """
      max_atoms = 2 * self.num_atoms
      f = CoulombMatrixEig(max_atoms=max_atoms)
      rval = f([self.mol_with_one_conf])
      assert rval.shape == (1, max_atoms)
      rval = f([self.mol_with_one_conf])
      assert rval.shape == (1, max_atoms)
      rval = f([self.mol_with_multi_conf])
      assert rval.shape == (1, self.num_confs, max_atoms)
  
file_path: deepchem/deepchem/feat/tests/test_coulomb_matrices.py
imports: import numpy
  import unittest
  from deepchem.feat import CoulombMatrix, CoulombMatrixEig
  from deepchem.utils import conformers
label_desc: Use image node_id 3 for calling the TestCoulombMatrixEig obj's underlying member method code with example usage: obj.test_coulomb_matrix_eig_padding() without return types