def METHOD_NAME(ident):
    """Test that EventTableSubset replaces the subscriber ident column name with subscriber."""
    etu = EventTableSubset(
        start="2016-01-01",
        stop="2016-01-02",
        columns=[ident],
        table="events.calls",
        subscriber_identifier=ident,
    )
    assert "subscriber" == etu.head(0).columns[0]
    assert ["subscriber"] == etu.column_names