def METHOD_NAME(db_session):
    name = "My Hypothesis Group"
    org = models.Organization(name="My Organization", authority="foobar.com")
    db_session.add(org)
    db_session.flush()
    group = models.Group(name=name, authority="foobar.com", organization=org)
    db_session.add(group)
    db_session.flush()
    assert group.organization == org
    assert group.organization_id == org.id