def METHOD_NAME():
    sources, targets = db.get_timestep("sim/ts3").calculate_all("path()", "find_progenitor(testvalpartial, 'max')")
    assert_halolists_equal(sources, ["sim/ts3/1", "sim/ts3/2"])
    assert_halolists_equal(targets, ["sim/ts1/2", "sim/ts1/3"])