class_docstr: Testing the file handler.
class_docstr_tok: ["Testing","the","file","handler","."]
docstr: Tests reader initialization.
code: def test_init(self):
      """Tests reader initialization."""
      assert self.reader.nlines == self.dummy2d.shape[0]
      assert self.reader.ncols == self.dummy2d.shape[1]
      assert self.reader.platform_name == "GOES-15"
      assert self.reader.platform_shortname == "goes15"
      assert self.reader.gvar_channel == self.band
      assert isinstance(self.reader.geo_data, xr.Dataset)
  
imports: import datetime
  import unittest
  from unittest import mock
  import numpy
  import pytest
  import xarray
  from pyresample.geometry import AreaDefinition
  from satpy.readers.goes_imager_nc import is_vis_channel
  from satpy.tests.utils import make_dataid
label_desc: Use image node_id 2 for calling the GOESNCBaseFileHandlerTest obj's underlying member method code with example usage: obj.test_init() without return types