class_docstr: Test IASI L2 reader.
class_docstr_tok: ["Test","IASI","L2","reader","."]
docstr: Test read_geo() function.
docstr_tok: ["Test","read_geo","(",")","function","."]
code: def test_read_geo(self):
      """Test read_geo() function."""
      import h5py
  
      from satpy.readers.iasi_l2 import read_geo
      from satpy.tests.utils import make_dataid
  
      with h5py.File(self.fname, "r") as fid:
          key = make_dataid(name="sensing_time")
          data = read_geo(fid, key).compute()
          assert data.shape == (NUM_SCANLINES, SCAN_WIDTH)
          key = make_dataid(name="latitude")
          data = read_geo(fid, key).compute()
          assert data.shape == (NUM_SCANLINES, SCAN_WIDTH)
  
imports: import math
  import os
  import unittest
  import numpy
  import pytest
  import xarray
label_desc: Use image node_id 15 for calling the TestIasiL2 obj's underlying member method code with example usage: obj.test_read_geo() without return types