def METHOD_NAME():
    fields = ["app_url_id", "cm_placement_id", "pct_clicks_leading_to_conversions", "region_id", "date"]
    converted_fields = DBM.convert_fields(fields)
    expected_fields = [
        "FILTER_SITE_ID",
        "FILTER_CM_PLACEMENT_ID",
        "METRIC_CLICK_TO_POST_CLICK_CONVERSION_RATE",
        "FILTER_REGION",
        "FILTER_DATE",
    ]
    assert converted_fields == expected_fields