text: from openslides.utils.test import TestCase
  from openslides.utils.utils import html_strong, int_or_none
  
  
  class Test_functions(TestCase):
      def test_string(self):
          self.assertEqual(html_strong('some text'), '<strong>some text</strong>')
  
      def test_int_or_none(self):
          self.assertEqual(int_or_none('5'), 5)
          self.assertEqual(int_or_none(5), 5)
          self.assertIsNone(int_or_none('text'))
          self.assertIsNone(int_or_none(None))
  