text: from django.test import TestCase
  
  from django_bootstrap5.text import text_concat, text_value
  
  
  class TextTestCase(TestCase):
      def test_text_value(self):
          self.assertEqual(text_value(""), "")
          self.assertEqual(text_value(" "), " ")
          self.assertEqual(text_value(None), "")
          self.assertEqual(text_value(1), "1")
  
      def test_text_concat(self):
          self.assertEqual(text_concat(1, 2), "12")
          self.assertEqual(text_concat(1, 2, separator="="), "1=2")
          self.assertEqual(text_concat(None, 2, separator="="), "2")
  