def METHOD_NAME(self):
    """Test basic init with no extra parameters."""
    from satpy.readers import load_reader
    r = load_reader(self.reader_configs)
    loadables = r.select_files_from_pathnames([
        'GW1AM2_201607201808_128A_L1DLBTBR_1110110.h5',
    ])
    self.assertEqual(len(loadables), 1)
    r.create_filehandlers(loadables)
    # make sure we have some files
    self.assertTrue(r.file_handlers)