def METHOD_NAME():
    """Set up cubes for testing."""
    vertical_updraught_data = np.zeros((2, 2), dtype=np.float32)
    vertical_updraught = set_up_variable_cube(
        vertical_updraught_data,
        "maximum_vertical_updraught",
        "m s-1",
        spatial_grid="equalarea",
        attributes=COMMON_ATTRS,
        standard_grid_metadata="gl_ens",
    )
    hail_size_data = np.zeros((2, 2), dtype=np.float32)
    hail_size = set_up_variable_cube(
        hail_size_data,
        "size_of_hail_stones",
        "m",
        spatial_grid="equalarea",
        attributes=COMMON_ATTRS,
        standard_grid_metadata="gl_ens",
    )
    cloud_condensation_level_data = np.zeros((2, 2), dtype=np.float32)
    cloud_condensation_level = set_up_variable_cube(
        cloud_condensation_level_data,
        "air_temperature_at_condensation_level",
        "K",
        spatial_grid="equalarea",
        attributes=COMMON_ATTRS,
        standard_grid_metadata="gl_ens",
    )
    convective_cloud_top_data = np.zeros((2, 2), dtype=np.float32)
    convective_cloud_top = set_up_variable_cube(
        convective_cloud_top_data,
        "air_temperature_at_convective_cloud_top",
        "K",
        spatial_grid="equalarea",
        attributes=COMMON_ATTRS,
        standard_grid_metadata="gl_ens",
    )
    hail_melting_level_data = np.zeros((2, 2), dtype=np.float32)
    hail_melting_level = set_up_variable_cube(
        hail_melting_level_data,
        "altitude_of_rain_from_hail_falling_level",
        "m",
        spatial_grid="equalarea",
        attributes=COMMON_ATTRS,
        standard_grid_metadata="gl_ens",
    )
    altitude_data = np.zeros((2, 2), dtype=np.float32)
    altitude = set_up_variable_cube(
        altitude_data,
        "altitude",
        "m",
        spatial_grid="equalarea",
        attributes=COMMON_ATTRS,
        standard_grid_metadata="gl_ens",
    )
    return (
        vertical_updraught,
        hail_size,
        cloud_condensation_level,
        convective_cloud_top,
        hail_melting_level,
        altitude,
    )