def METHOD_NAME(self):
    self.potential1.train(
        train_structures=self.test_structures,
        train_energies=self.test_energies,
        train_forces=self.test_forces,
        train_stresses=self.test_stresses,
    )
    df_orig, df_tar = self.potential1.evaluate(
        test_structures=self.test_structures,
        test_energies=self.test_energies,
        test_forces=self.test_forces,
        test_stresses=self.test_stresses,
    )
    assert df_orig.shape[0] == df_tar.shape[0]
    self.potential2.train(
        train_structures=self.test_structures,
        train_energies=self.test_energies,
        train_forces=self.test_forces,
        train_stresses=self.test_stresses,
    )
    df_orig, df_tar = self.potential2.evaluate(
        test_structures=self.test_structures,
        test_energies=self.test_energies,
        test_forces=self.test_forces,
        test_stresses=self.test_stresses,
    )
    assert df_orig.shape[0] == df_tar.shape[0]