class_docstr: Test the IciL1bNCFileHandler reader.
class_docstr_tok: ["Test","the","IciL1bNCFileHandler","reader","."]
docstr: Test solar azimuth.
docstr_tok: ["Test","solar","azimuth","."]
code: def test_solar_azimuth(self, reader):
      """Test solar azimuth."""
      np.testing.assert_allclose(reader.solar_azimuth, 3, rtol=1e-3)
  
imports: from datetime import datetime
  from unittest.mock import patch
  import numpy
  import pytest
  import xarray
  from netCDF4 import Dataset
  from satpy.readers.ici_l1b_nc import IciL1bNCFileHandler, InterpolationType
label_desc: Use image node_id 8 for calling the TestIciL1bNCFileHandler obj's underlying member method code with example usage: obj.test_solar_azimuth(reader) without return types