Exemple #1
0
def describe_entity(entity: ChebiEntity) -> None:
    """
    Test function to describe a ChEBI entity.

    Args:
        entity:
            a :class:`ChebiEntity`
    """
    name = entity.get_name()

    out_lines = []  # type: List[str]
    for other in entity.get_outgoings():
        target = ChebiEntity(other.get_target_chebi_id())
        out_lines.append(
            f"    • {name} {other.get_type()} {brief_description(target)}")

    in_lines = []  # type: List[str]
    for other in entity.get_incomings():
        target = ChebiEntity(other.get_target_chebi_id())
        in_lines.append(
            f"    • {brief_description(target)} {other.get_type()} {name}")

    lines = ([entity.get_name(), f"  ► OUTGOING ({len(out_lines)})"] +
             out_lines + [f"  ► INCOMING ({len(in_lines)})"] + in_lines)
    report = "\n".join(lines)
    log.info(f"{entity.get_id()}:\n{report}")
Exemple #2
0
def conditionclass(request, class_id):
    class_entity = ChebiEntity('CHEBI:' + str(class_id))
    class_name = class_entity.get_name()
    children = []
    for relation in class_entity.get_incomings():
        if relation.get_type() == 'has_role':
            tid = relation.get_target_chebi_id()
            tid = re.search('(?<=CHEBI:)(\d)*', tid)
            tid = int(tid.group(0))
            children.append(tid)

    conditiontypes = ConditionType.objects.filter(chebi_id__in=children)
    datasets = Dataset.objects.filter(conditionset__conditions__type__in=conditiontypes)\
        .exclude(paper__latest_data_status__status__name='not relevant').distinct()
    return render(
        request, 'conditions/class.html', {
            'id': class_id,
            'class_name': class_name,
            'conditiontypes': conditiontypes,
            'papers': datasets,
            'DOWNLOAD_PREFIX': settings.DOWNLOAD_PREFIX,
            'USER_AUTH': request.user.is_authenticated()
        })
def data(request, domain, id):

    file_header = ''

    if domain == 'papers':
        paper = get_object_or_404(Paper, pk=id)
        datasets = paper.dataset_set
        file_header = u'# Paper: %s (PMID %s)\n' % (paper, paper.pmid)

    if domain == 'datasets':
        # datasets = get_object_or_404(Dataset, pk=id)
        datasets = Dataset.objects.filter(pk=id)
        dataset = datasets.first()
        file_header = u'# Paper: %s (PMID %s)\n# Dataset: %s\n' % (
            dataset.paper, dataset.paper.pmid, dataset)

    if domain == 'conditions':
        conditiontype = get_object_or_404(ConditionType, pk=id)
        datasets = conditiontype.datasets()
        file_header = u'# Condition: %s (ID %s)\n' % (conditiontype,
                                                      conditiontype.id)

    if domain == 'chebi':
        chebi_entity = ChebiEntity('CHEBI:' + str(id))
        children = []
        for relation in chebi_entity.get_incomings():
            if relation.get_type() == 'has_role':
                tid = relation.get_target_chebi_id()
                tid = int(filter(str.isdigit, tid))
                children.append(tid)
        datasets = Dataset.objects.filter(
            conditionset__conditions__type__chebi_id__in=children)
        file_header = u'# Data for conditions annotated as %s (ChEBI:%s)\n' % (
            chebi_entity.get_name(), id)

    if domain == 'phenotypes':
        phenotype = get_object_or_404(Observable, pk=id)
        datasets = phenotype.datasets()
        file_header = u'# Phenotype: %s (ID %s)\n' % (phenotype, phenotype.id)

    data = Data.objects.filter(dataset_id__in=datasets.values('id')).all()

    orfs = list(data.values_list('orf', flat=True).distinct())
    datasets_ids = list(
        data.values_list('dataset_id',
                         flat=True).order_by('dataset__paper').distinct())
    matrix = [[None] * len(datasets_ids) for i in orfs]

    for datapoint in data:
        i = orfs.index(datapoint.orf)
        j = datasets_ids.index(datapoint.dataset_id)
        matrix[i][j] = datapoint.value

    column_headers = '\t' + '\t'.join([
        u'%s' % get_object_or_404(Dataset, pk=dataset_id)
        for dataset_id in datasets_ids
    ]) + '\n'

    data_row = []
    for i, orf in enumerate(orfs):
        new_row = orf + '\t' + '\t'.join([str(val) for val in matrix[i]])
        print(new_row)
        data_row.append(new_row)

    txt3 = '\n'.join(data_row)

    response = HttpResponse(file_header + column_headers + txt3,
                            content_type='text/plain')
    response[
        'Content-Disposition'] = 'attachment; filename="%s_%s_%s_data.txt"' % (
            settings.DOWNLOAD_PREFIX, domain, id)

    return response
class TestChebiEntity(unittest.TestCase):
    '''COMMENT'''

    def setUp(self):
        '''COMMENT'''
        self.__existing = ChebiEntity('4167')
        self.__secondary = ChebiEntity('CHEBI:5585')

    def test_get_non_existing(self):
        '''COMMENT'''
        self.assertRaises(ChebiException, ChebiEntity, '-1')

    def test_get_id_existing(self):
        '''COMMENT'''
        self.assertTrue(self.__existing.get_id() == 'CHEBI:4167')

    def test_get_id_secondary(self):
        '''COMMENT'''
        self.assertTrue(self.__secondary.get_id() == 'CHEBI:5585')

    def test_get_formulae_existing(self):
        '''COMMENT'''
        this_formula = Formula('C6H12O6', 'KEGG COMPOUND')
        self.assertTrue(this_formula in self.__existing.get_formulae())

    def test_get_formulae_secondary(self):
        '''COMMENT'''
        this_formula = Formula('H2O', 'ChEBI')
        self.assertTrue(this_formula in self.__secondary.get_formulae())

    def test_get_formula_existing(self):
        '''COMMENT'''
        self.assertTrue(self.__existing.get_formula() == 'C6H12O6')

    def test_get_formula_secondary(self):
        '''COMMENT'''
        self.assertTrue(self.__secondary.get_formula() == 'H2O')

    def test_get_mass_existing(self):
        '''COMMENT'''
        self.assertEqual(self.__existing.get_mass(), 180.15588)

    def test_get_mass_secondary(self):
        '''COMMENT'''
        self.assertEqual(self.__secondary.get_mass(), 18.01530)

    def test_get_charge_existing(self):
        '''COMMENT'''
        self.assertEqual(self.__existing.get_charge(), 0)

    def test_get_charge_secondary(self):
        '''COMMENT'''
        self.assertEqual(self.__secondary.get_charge(), 0)

    def test_get_charge_secondary2(self):
        '''COMMENT'''
        self.assertEquals(-2, ChebiEntity('43474').get_charge())

    def test_get_comments_existing(self):
        '''COMMENT'''
        this_chebi_entity = ChebiEntity('29044')
        this_comment = Comment('General', 'General',
                               'The substituent name \'3-oxoprop-2-enyl\' is '
                               'incorrect but is used in various databases.',
                               datetime.datetime.strptime('2005-03-18',
                                                          '%Y-%M-%d'))
        self.assertTrue(this_comment in this_chebi_entity.get_comments())

    def test_get_comments_secondary(self):
        '''COMMENT'''
        this_chebi_entity = ChebiEntity('11505')
        this_comment = Comment('General', 'General',
                               'The substituent name \'3-oxoprop-2-enyl\' is '
                               'incorrect but is used in various databases.',
                               datetime.datetime.strptime('2005-03-18',
                                                          '%Y-%M-%d'))
        self.assertTrue(this_comment in this_chebi_entity.get_comments())

    def test_get_source_existing(self):
        '''COMMENT'''
        self.assertEqual(self.__existing.get_source(), 'KEGG COMPOUND')

    def test_get_source_secondary(self):
        '''COMMENT'''
        self.assertEqual(self.__secondary.get_source(), 'KEGG COMPOUND')

    def test_get_prnt_id_existing(self):
        '''COMMENT'''
        self.assertIsNone(self.__existing.get_parent_id())

    def test_get_prnt_id_secondary(self):
        '''COMMENT'''
        self.assertEqual(self.__secondary.get_parent_id(), 'CHEBI:15377')

    def test_get_name_existing(self):
        '''COMMENT'''
        self.assertEqual(self.__existing.get_name(), 'D-glucopyranose')

    def test_get_name_secondary(self):
        '''COMMENT'''
        self.assertEqual(self.__secondary.get_name(), 'water')

    def test_get_definition_existing(self):
        '''COMMENT'''
        self.assertEqual(self.__existing.get_definition(),
                         'A glucopyranose having D-configuration.')

    def test_get_definition_secondary(self):
        '''COMMENT'''
        this_chebi_entity = ChebiEntity('41140')
        self.assertEqual(this_chebi_entity.get_definition(),
                         'D-Glucopyranose with beta configuration at the '
                         'anomeric centre.')

    def test_get_mod_on_existing(self):
        '''COMMENT'''
        self.assertTrue(self.__existing.get_modified_on() >
                        datetime.datetime.strptime('2014-01-01',
                                                   '%Y-%M-%d'))

    def test_get_mod_on_secondary(self):
        '''COMMENT'''
        self.assertIsNotNone(self.__secondary.get_modified_on())

    def test_get_created_by_existing(self):
        '''COMMENT'''
        self.assertEqual(self.__existing.get_created_by(), 'CHEBI')

    def test_get_created_by_secondary(self):
        '''COMMENT'''
        self.assertEqual(self.__secondary.get_created_by(), 'ops$mennis')

    def test_get_star_existing(self):
        '''COMMENT'''
        self.assertEqual(self.__existing.get_star(), 3)

    def test_get_star_secondary(self):
        '''COMMENT'''
        self.assertEqual(self.__secondary.get_star(), 3)

    def test_get_db_acc_existing(self):
        '''COMMENT'''
        dat_acc = DatabaseAccession('MetaCyc accession', 'D-Glucose',
                                    'MetaCyc')
        self.assertTrue(dat_acc in self.__existing.get_database_accessions())

    def test_get_db_acc_secondary(self):
        '''COMMENT'''
        dat_acc = DatabaseAccession('MetaCyc accession', 'WATER', 'MetaCyc')
        self.assertTrue(dat_acc in self.__secondary.get_database_accessions())

    def test_get_inchi_existing(self):
        '''COMMENT'''
        inchi = 'InChI=1S/C6H12O6/c7-1-2-3(8)4(9)5(10)6(11)12-2/' + \
            'h2-11H,1H2/t2-,3-,4+,5-,6?/m1/s1'
        self.assertEqual(self.__existing.get_inchi(), inchi)

    def test_get_inchi_secondary(self):
        '''COMMENT'''
        self.assertEqual(self.__secondary.get_inchi(), 'InChI=1S/H2O/h1H2')

    def test_get_inchi_key_existing(self):
        '''COMMENT'''
        self.assertEqual(self.__existing.get_inchi_key(),
                         'WQZGKKKJIJFFOK-GASJEMHNSA-N')

    def test_get_inchi_key_secondary(self):
        '''COMMENT'''
        self.assertEqual(self.__secondary.get_inchi_key(),
                         'XLYOFNOQVPJJNP-UHFFFAOYSA-N')

    def test_get_smiles_existing(self):
        '''COMMENT'''
        self.assertEqual(self.__existing.get_smiles(),
                         'OC[C@H]1OC(O)[C@H](O)[C@@H](O)[C@@H]1O')

    def test_get_smiles_secondary(self):
        '''COMMENT'''
        self.assertEqual(self.__secondary.get_smiles(), '[H]O[H]')

    def test_get_mol_existing(self):
        '''COMMENT'''
        chebi_id = 73938
        this_chebi_entity = ChebiEntity(str(chebi_id))
        self.assertEqual(this_chebi_entity.get_mol(),
                         _read_mol_file(chebi_id))

    def test_get_mol_secondary(self):
        '''COMMENT'''
        self.assertEqual(self.__secondary.get_mol(), _read_mol_file(15377))

    def test_get_mol_file_existing(self):
        '''COMMENT'''
        chebi_id = 73938
        self.__get_mol_file(chebi_id, chebi_id)

    def test_get_mol_file_secondary(self):
        '''COMMENT'''
        read_id = 15377
        retrieved_id = 42857
        self.__get_mol_file(read_id, retrieved_id)

    def test_get_names_existing(self):
        '''COMMENT'''
        this_name = Name('Grape sugar', 'SYNONYM', 'KEGG COMPOUND', False,
                         'en')
        self.assertTrue(this_name in self.__existing.get_names())

    def test_get_names_secondary(self):
        '''COMMENT'''
        this_name = Name('eau', 'SYNONYM', 'ChEBI', False, 'fr')
        self.assertTrue(this_name in self.__secondary.get_names())

    def test_get_references_existing(self):
        '''COMMENT'''
        this_chebi_entity = ChebiEntity('15347')
        this_reference = Reference('WO2006008754', 'Patent', '',
                                   'NOVEL INTERMEDIATES FOR LINEZOLID '
                                   'AND RELATED COMPOUNDS')

        self.assertTrue(this_reference in this_chebi_entity.get_references())

    def test_get_references_secondary(self):
        '''COMMENT'''
        this_chebi_entity = ChebiEntity('22182')
        this_reference = Reference('WO2006008754', 'Patent', '',
                                   'NOVEL INTERMEDIATES FOR LINEZOLID '
                                   'AND RELATED COMPOUNDS')
        self.assertTrue(this_reference in this_chebi_entity.get_references())

    def test_get_cmp_orig_existing(self):
        '''COMMENT'''
        this_compound_origin = CompoundOrigin('H**o sapiens', 'NCBI:9606',
                                              None, None, None, None,
                                              'DOI', '10.1038/nbt.2488', None)
        self.assertTrue(this_compound_origin
                        in self.__existing.get_compound_origins())

    def test_get_cmp_orig_secondary(self):
        '''COMMENT'''
        this_compound_origin = CompoundOrigin('H**o sapiens', 'NCBI:9606',
                                              None, None, None, None,
                                              'DOI', '10.1038/nbt.2488', None)
        self.assertTrue(this_compound_origin
                        in self.__secondary.get_compound_origins())

    def test_get_out_existing(self):
        '''COMMENT'''
        this_relation = Relation('is_a', '17634', 'C')
        self.assertTrue(this_relation in self.__existing.get_outgoings())

    def test_get_out_secondary(self):
        '''COMMENT'''
        this_relation = Relation('has_role', 'CHEBI:48360', 'C')
        self.assertTrue(this_relation in self.__secondary.get_outgoings())

    def test_get_in_existing(self):
        '''COMMENT'''
        this_relation = Relation('has_functional_parent', 'CHEBI:15866', 'C')
        self.assertTrue(this_relation in self.__existing.get_incomings())

    def test_get_in_secondary(self):
        '''COMMENT'''
        this_relation = Relation('is_conjugate_acid_of', '29412', 'C')
        self.assertTrue(this_relation in self.__secondary.get_incomings())

    def __get_mol_file(self, read_id, retrieved_id):
        '''COMMENT'''
        mol_read = _read_mol_file(read_id)
        this_chebi_entity = ChebiEntity(str(retrieved_id))
        textfile_retrieved = open(this_chebi_entity.get_mol_filename(), 'r')
        mol_retrieved = textfile_retrieved.read()
        textfile_retrieved.close()
        self.assertEquals(mol_read, mol_retrieved)
class TestChebiEntity(unittest.TestCase):
    '''COMMENT'''
    def setUp(self):
        '''COMMENT'''
        self.__existing = ChebiEntity('4167')
        self.__secondary = ChebiEntity('CHEBI:5585')

    def test_get_non_existing(self):
        '''COMMENT'''
        self.assertRaises(ChebiException, ChebiEntity, '-1')

    def test_get_id_existing(self):
        '''COMMENT'''
        self.assertTrue(self.__existing.get_id() == 'CHEBI:4167')

    def test_get_id_secondary(self):
        '''COMMENT'''
        self.assertTrue(self.__secondary.get_id() == 'CHEBI:5585')

    def test_get_formulae_existing(self):
        '''COMMENT'''
        this_formula = Formula('C6H12O6', 'KEGG COMPOUND')
        self.assertTrue(this_formula in self.__existing.get_formulae())

    def test_get_formulae_secondary(self):
        '''COMMENT'''
        this_formula = Formula('H2O', 'ChEBI')
        self.assertTrue(this_formula in self.__secondary.get_formulae())

    def test_get_formula_existing(self):
        '''COMMENT'''
        self.assertTrue(self.__existing.get_formula() == 'C6H12O6')

    def test_get_formula_secondary(self):
        '''COMMENT'''
        self.assertTrue(self.__secondary.get_formula() == 'H2O')

    def test_get_mass_existing(self):
        '''COMMENT'''
        self.assertEqual(self.__existing.get_mass(), 180.15588)

    def test_get_mass_secondary(self):
        '''COMMENT'''
        self.assertEqual(self.__secondary.get_mass(), 18.01530)

    def test_get_charge_existing(self):
        '''COMMENT'''
        self.assertEqual(self.__existing.get_charge(), 0)

    def test_get_charge_secondary(self):
        '''COMMENT'''
        self.assertEqual(self.__secondary.get_charge(), 0)

    def test_get_charge_secondary2(self):
        '''COMMENT'''
        self.assertEquals(-2, ChebiEntity('43474').get_charge())

    def test_get_comments_existing(self):
        '''COMMENT'''
        this_chebi_entity = ChebiEntity('29044')
        this_comment = Comment(
            'General', 'General',
            'The substituent name \'3-oxoprop-2-enyl\' is '
            'incorrect but is used in various databases.',
            datetime.datetime.strptime('2005-03-18', '%Y-%M-%d'))
        self.assertTrue(this_comment in this_chebi_entity.get_comments())

    def test_get_comments_secondary(self):
        '''COMMENT'''
        this_chebi_entity = ChebiEntity('11505')
        this_comment = Comment(
            'General', 'General',
            'The substituent name \'3-oxoprop-2-enyl\' is '
            'incorrect but is used in various databases.',
            datetime.datetime.strptime('2005-03-18', '%Y-%M-%d'))
        self.assertTrue(this_comment in this_chebi_entity.get_comments())

    def test_get_source_existing(self):
        '''COMMENT'''
        self.assertEqual(self.__existing.get_source(), 'KEGG COMPOUND')

    def test_get_source_secondary(self):
        '''COMMENT'''
        self.assertEqual(self.__secondary.get_source(), 'KEGG COMPOUND')

    def test_get_prnt_id_existing(self):
        '''COMMENT'''
        self.assertIsNone(self.__existing.get_parent_id())

    def test_get_prnt_id_secondary(self):
        '''COMMENT'''
        self.assertEqual(self.__secondary.get_parent_id(), 'CHEBI:15377')

    def test_get_name_existing(self):
        '''COMMENT'''
        self.assertEqual(self.__existing.get_name(), 'D-glucopyranose')

    def test_get_name_secondary(self):
        '''COMMENT'''
        self.assertEqual(self.__secondary.get_name(), 'water')

    def test_get_definition_existing(self):
        '''COMMENT'''
        self.assertEqual(self.__existing.get_definition(),
                         'A glucopyranose having D-configuration.')

    def test_get_definition_secondary(self):
        '''COMMENT'''
        this_chebi_entity = ChebiEntity('41140')
        self.assertEqual(
            this_chebi_entity.get_definition(),
            'D-Glucopyranose with beta configuration at the '
            'anomeric centre.')

    def test_get_mod_on_existing(self):
        '''COMMENT'''
        self.assertTrue(self.__existing.get_modified_on() >
                        datetime.datetime.strptime('2014-01-01', '%Y-%M-%d'))

    def test_get_mod_on_secondary(self):
        '''COMMENT'''
        self.assertIsNotNone(self.__secondary.get_modified_on())

    def test_get_created_by_existing(self):
        '''COMMENT'''
        self.assertEqual(self.__existing.get_created_by(), 'CHEBI')

    def test_get_created_by_secondary(self):
        '''COMMENT'''
        self.assertEqual(self.__secondary.get_created_by(), 'ops$mennis')

    def test_get_star_existing(self):
        '''COMMENT'''
        self.assertEqual(self.__existing.get_star(), 3)

    def test_get_star_secondary(self):
        '''COMMENT'''
        self.assertEqual(self.__secondary.get_star(), 3)

    def test_get_db_acc_existing(self):
        '''COMMENT'''
        dat_acc = DatabaseAccession('MetaCyc accession', 'D-Glucose',
                                    'MetaCyc')
        self.assertTrue(dat_acc in self.__existing.get_database_accessions())

    def test_get_db_acc_secondary(self):
        '''COMMENT'''
        dat_acc = DatabaseAccession('MetaCyc accession', 'WATER', 'MetaCyc')
        self.assertTrue(dat_acc in self.__secondary.get_database_accessions())

    def test_get_inchi_existing(self):
        '''COMMENT'''
        inchi = 'InChI=1S/C6H12O6/c7-1-2-3(8)4(9)5(10)6(11)12-2/' + \
            'h2-11H,1H2/t2-,3-,4+,5-,6?/m1/s1'
        self.assertEqual(self.__existing.get_inchi(), inchi)

    def test_get_inchi_secondary(self):
        '''COMMENT'''
        self.assertEqual(self.__secondary.get_inchi(), 'InChI=1S/H2O/h1H2')

    def test_get_inchi_key_existing(self):
        '''COMMENT'''
        self.assertEqual(self.__existing.get_inchi_key(),
                         'WQZGKKKJIJFFOK-GASJEMHNSA-N')

    def test_get_inchi_key_secondary(self):
        '''COMMENT'''
        self.assertEqual(self.__secondary.get_inchi_key(),
                         'XLYOFNOQVPJJNP-UHFFFAOYSA-N')

    def test_get_smiles_existing(self):
        '''COMMENT'''
        self.assertEqual(self.__existing.get_smiles(),
                         'OC[C@H]1OC(O)[C@H](O)[C@@H](O)[C@@H]1O')

    def test_get_smiles_secondary(self):
        '''COMMENT'''
        self.assertEqual(self.__secondary.get_smiles(), '[H]O[H]')

    def test_get_mol_existing(self):
        '''COMMENT'''
        chebi_id = 73938
        this_chebi_entity = ChebiEntity(str(chebi_id))
        self.assertEqual(this_chebi_entity.get_mol(), _read_mol_file(chebi_id))

    def test_get_mol_secondary(self):
        '''COMMENT'''
        self.assertEqual(self.__secondary.get_mol(), _read_mol_file(15377))

    def test_get_mol_file_existing(self):
        '''COMMENT'''
        chebi_id = 73938
        self.__get_mol_file(chebi_id, chebi_id)

    def test_get_mol_file_secondary(self):
        '''COMMENT'''
        read_id = 15377
        retrieved_id = 42857
        self.__get_mol_file(read_id, retrieved_id)

    def test_get_names_existing(self):
        '''COMMENT'''
        this_name = Name('Grape sugar', 'SYNONYM', 'KEGG COMPOUND', False,
                         'en')
        self.assertTrue(this_name in self.__existing.get_names())

    def test_get_names_secondary(self):
        '''COMMENT'''
        this_name = Name('eau', 'SYNONYM', 'ChEBI', False, 'fr')
        self.assertTrue(this_name in self.__secondary.get_names())

    def test_get_references_existing(self):
        '''COMMENT'''
        this_chebi_entity = ChebiEntity('15347')
        this_reference = Reference(
            'WO2006008754', 'Patent', '', 'NOVEL INTERMEDIATES FOR LINEZOLID '
            'AND RELATED COMPOUNDS')

        self.assertTrue(this_reference in this_chebi_entity.get_references())

    def test_get_references_secondary(self):
        '''COMMENT'''
        this_chebi_entity = ChebiEntity('22182')
        this_reference = Reference(
            'WO2006008754', 'Patent', '', 'NOVEL INTERMEDIATES FOR LINEZOLID '
            'AND RELATED COMPOUNDS')
        self.assertTrue(this_reference in this_chebi_entity.get_references())

    def test_get_cmp_orig_existing(self):
        '''COMMENT'''
        this_compound_origin = CompoundOrigin('H**o sapiens', 'NCBI:9606',
                                              None, None, None, None, 'DOI',
                                              '10.1038/nbt.2488', None)
        self.assertTrue(
            this_compound_origin in self.__existing.get_compound_origins())

    def test_get_cmp_orig_secondary(self):
        '''COMMENT'''
        this_compound_origin = CompoundOrigin('H**o sapiens', 'NCBI:9606',
                                              None, None, None, None, 'DOI',
                                              '10.1038/nbt.2488', None)
        self.assertTrue(
            this_compound_origin in self.__secondary.get_compound_origins())

    def test_get_out_existing(self):
        '''COMMENT'''
        this_relation = Relation('is_a', '17634', 'C')
        self.assertTrue(this_relation in self.__existing.get_outgoings())

    def test_get_out_secondary(self):
        '''COMMENT'''
        this_relation = Relation('has_role', 'CHEBI:48360', 'C')
        self.assertTrue(this_relation in self.__secondary.get_outgoings())

    def test_get_in_existing(self):
        '''COMMENT'''
        this_relation = Relation('has_functional_parent', 'CHEBI:15866', 'C')
        self.assertTrue(this_relation in self.__existing.get_incomings())

    def test_get_in_secondary(self):
        '''COMMENT'''
        this_relation = Relation('is_conjugate_acid_of', '29412', 'C')
        self.assertTrue(this_relation in self.__secondary.get_incomings())

    def __get_mol_file(self, read_id, retrieved_id):
        '''COMMENT'''
        mol_read = _read_mol_file(read_id)
        this_chebi_entity = ChebiEntity(str(retrieved_id))
        textfile_retrieved = open(this_chebi_entity.get_mol_filename(), 'r')
        mol_retrieved = textfile_retrieved.read()
        textfile_retrieved.close()
        self.assertEquals(mol_read, mol_retrieved)