def _test_impl(self, engine_name, error_msg):
try:
error = sqlalchemy.exc.IntegrityError('test', 'test', error_msg)
session._raise_if_duplicate_entry_error(error, engine_name)
except exception.DBDuplicateEntry as e:
self.assertEqual(e.columns, ['a', 'b'])
else:
self.fail('DBDuplicateEntry was not raised')
def test_ibm_db_sa_raise_if_duplicate_entry_error_no_match(self):
# Tests that the session._raise_if_duplicate_entry_error method
# does not raise a DBDuplicateEntry exception when it's not a matching
# integrity error.
statement = ('ALTER TABLE instance_types ADD CONSTRAINT '
'uniq_name_x_deleted UNIQUE (name, deleted)')
params = None
orig = sqla_exc.SQLAlchemyError(
'SQL0542N The column named "NAME" cannot be a column of a '
'primary key or unique key constraint because it can contain null '
'values.')
integrity_error = sqla_exc.IntegrityError(statement, params, orig)
session._raise_if_duplicate_entry_error(integrity_error, 'ibm_db_sa')
def test_unsupported_backend_returns_none(self):
error = sqlalchemy.exc.IntegrityError('test', 'test', 'test')
rv = session._raise_if_duplicate_entry_error('oracle', error)
self.assertIsNone(rv)
