old_contents: #!/usr/bin/env python
  
  import unittest
  import mulsum
  
  class MulSumTest(unittest.TestCase):
      def test_add(self):
          self.assertEqual(mulsum.add(1,2), 3)
          self.assertEqual(mulsum.add(3,4), 7)
          self.assertEqual(mulsum.add(5,6), 11)
      def test_mult(self):
          self.assertEqual(mulsum.mult(1,2), 2)
          self.assertEqual(mulsum.mult(3,4), 12)
          self.assertEqual(mulsum.mult(5,6), 30)
  
  if __name__ == '__main__':
      unittest.main()
  
new_contents: #!/usr/bin/env python
  
  import unittest
  import mulsum
  
  class MulSumTest(unittest.TestCase):
      def test_add(self):
          self.assertEqual(mulsum.add(1,2), 3)
          self.assertEqual(mulsum.add(3,4), 7)
          self.assertEqual(mulsum.add(5,6), 11)
          self.assertEqual(mulsum.add(7,8), 15)
      def test_mult(self):
          self.assertEqual(mulsum.mult(1,2), 2)
          self.assertEqual(mulsum.mult(3,4), 12)
          self.assertEqual(mulsum.mult(5,6), 30)
          self.assertEqual(mulsum.add(7,8), 40)
  
  if __name__ == '__main__':
      unittest.main()
  
subject: add test