Example #1
0
    def compare(self, inchi, u_indices=None, p_indices=None):
        u_layer = U_LAYER_PREFIX + U_LAYER_SEPARATOR.join(map(
            str, u_indices)) if u_indices else None
        p_layer = P_LAYER_PREFIX + P_LAYER_SEPARATOR.join(map(
            str, p_indices)) if p_indices else None

        aug_inchi = compose_aug_inchi(inchi, u_layer, p_layer)

        mol = from_augmented_inchi(Molecule(), aug_inchi)
        ConsistencyChecker.check_multiplicity(mol.get_radical_count(),
                                              mol.multiplicity)

        for at in mol.atoms:
            ConsistencyChecker.check_partial_charge(at)

        spc = Species(molecule=[mol])
        spc.generate_resonance_structures()

        ignore_prefix = r"(InChI=1+)(S*)/"
        aug_inchi_expected = re.split(ignore_prefix, aug_inchi)[-1]
        aug_inchi_computed = re.split(ignore_prefix,
                                      spc.get_augmented_inchi())[-1]
        self.assertEquals(aug_inchi_expected, aug_inchi_computed)

        return mol
Example #2
0
def _check_molecule(mol, aug_inchi):
    """
    Check if the molecular structure is correct.

    Checks whether the multiplicity contained in the augmented inchi,
    corresponds to the number of unpaired electrons + 1 found in the molecule.

    Checks whether the valence of each atom is compatible with the bond order,
    number of unpaired electrons, lone pairs and charge.

    """
    cython.declare(inchi=str, at=Atom)

    ConsistencyChecker.check_multiplicity(mol.get_radical_count(),
                                          mol.multiplicity)
    _, u_indices, _ = decompose_aug_inchi(str(aug_inchi))
    assert (mol.get_radical_count() == len(u_indices))

    for at in mol.atoms:
        ConsistencyChecker.check_partial_charge(at)