def METHOD_NAME(fresh_database):
    manager = add_simulation.SimulationAdderUpdater(output_testing.TestInputHandler("dummy_sim_1"))
    with log.LogCapturer():
        manager.scan_simulation_and_add_all_descendants()
    assert db.core.get_default_session().query(db.core.Simulation).count()==1
    assert len(db.get_simulation("dummy_sim_1").timesteps)==2
    assert db.get_simulation("dummy_sim_1").properties.count()==3