def METHOD_NAME(self, test_client, session):
    service = ServiceFactory.create(workspace=self.workspace)
    session.commit()
    initial_comment_count = len(session.query(Comment).all())
    raw_comment = self._create_raw_comment('service', service.id)
    res = test_client.post(self.url(workspace=self.workspace), data=raw_comment)
    assert res.status_code == 201
    assert len(session.query(Comment).all()) == initial_comment_count + 1