text: import unittest
  import utils
  
  
  class TestMatchMaking(unittest.TestCase):
      def test_get_teams_combinations(self):
          """
          Test get_teams_combinations
          """
          data, M = utils.get_random_inputs(10,2)
          result = utils.get_teams_combinations(data, M)
          self.assertEqual(len(result), 45)
  
      def test_get_team_diff_list(self):
          """
          Test get_team_diff_list
          """
          data = [utils.Team(set(['Dorothy']), 1), utils.Team(set(['David']), 7)]
          result = utils.get_team_diff_list(data)
          self.assertEqual(len(result), 1)
          self.assertEqual(result[0].diff, 6)
  
  if __name__ == '__main__':
      unittest.main()