text: import unittest
  import sys
  import os
  sys.path.append(os.path.join('..', 'tests'))
  from base import BaseTests
  
  class Test(unittest.TestCase, BaseTests):
      __test__ = True
  
      def setUp(self):
          self.chapter_number = 1
          super().setup_context()
  
  if __name__ == '__main__':
      unittest.main()