class_docstr: Test the HRITFileHandler.
class_docstr_tok: ["Test","the","HRITFileHandler","."]
docstr: Test the init.
docstr_tok: ["Test","the","init","."]
code: def test_init(self):
      """Test the init."""
      blob = "$HALFTONE:=10\r\n_NAME:=albedo\r\n_UNIT:=percent\r\n0:=0.0\r\n1023:=100.0\r\n".encode()
      mda = {
          "spectral_channel_id": 1,
          "projection_parameters": {"SSP_longitude": 100.1640625},
          "image_data_function": blob,
      }
      assert self.reader.mda == mda
  
imports: import datetime
  import unittest
  from unittest import mock
  import numpy
  from xarray import DataArray
  from satpy.readers.goes_imager_hrit import ALTITUDE, HRITGOESFileHandler, HRITGOESPrologueFileHandler, make_gvar_float, make_sgs_time, sgs_time
  from satpy.tests.utils import make_dataid
label_desc: Use image node_id 2 for calling the TestHRITGOESFileHandler obj's underlying member method code with example usage: obj.test_init() without return types