code: def test_check_integer(self):
      a = -2
  
      with pytest.raises(ValueError):
          geomstats.errors.check_integer(a, "a")
  
file_path: geomstats/tests/tests_geomstats/test_errors.py
imports: import pytest
  import geomstats.backend
  import geomstats.errors
  from geomstats.geometry.euclidean import Euclidean
  from geomstats.geometry.spd_matrices import SPDMatrices
  from geomstats.test.test_case import TestCase
label_desc: Use image node_id 3 for calling the TestBackends obj's underlying member method code with example usage: obj.test_check_integer() without return types