def METHOD_NAME(self):
    """Test sector identification."""
    from satpy.readers.goes_imager_nc import (
        FULL_DISC,
        NORTH_HEMIS_EAST,
        NORTH_HEMIS_WEST,
        SOUTH_HEMIS_EAST,
        SOUTH_HEMIS_WEST,
        UNKNOWN_SECTOR,
    )
    shapes = {
        (2700, 5200): FULL_DISC,
        (1850, 3450): NORTH_HEMIS_EAST,
        (600, 3500): SOUTH_HEMIS_EAST,
        (1310, 3300): NORTH_HEMIS_WEST,
        (1099, 2800): SOUTH_HEMIS_WEST,
        (123, 456): UNKNOWN_SECTOR
    }
    for (nlines, ncols), sector_ref in shapes.items():
        for channel in ('00_7', '10_7'):
            sector = self.reader._get_sector(channel=channel, nlines=nlines,
                                             ncols=ncols)
            self.assertEqual(sector, sector_ref,
                             msg='Incorrect sector identification')