class_docstr: Unit tests for SEVIRI netCDF reader.
class_docstr_tok: ["Unit","tests","for","SEVIRI","netCDF","reader","."]
docstr: Fixture for xr backend choice.
docstr_tok: ["Fixture","for","xr","backend","choice","."]
code: def h5netcdf(self):
      """Fixture for xr backend choice."""
      return False
  
imports: from datetime import datetime
  from unittest import mock
  import numpy
  import pytest
  import xarray
  from satpy.readers.seviri_l1b_nc import NCSEVIRIFileHandler
  from satpy.tests.reader_tests.test_seviri_base import ORBIT_POLYNOMIALS
  from satpy.tests.reader_tests.test_seviri_l1b_calibration import TestFileHandlerCalibrationBase
  from satpy.tests.utils import assert_attrs_equal, make_dataid
label_desc: Use image node_id 2 for calling the TestNCSEVIRIFileHandler obj's underlying member method code with example usage: obj.h5netcdf() and returns: False