old_contents: '''
  Created on 25 Mar 2015
  
  @author: ssg37927
  '''
  import unittest
  
  
  class Test(unittest.TestCase):
  
      def testadd(self):
          from demo import foo
          self.assertEqual(foo.add(1, 2), 3)
  
      def testsub(self):
          from demo import foo
          self.assertEqual(foo.sub(5, 2), 3)
  
      def testmul(self):
          from demo import foo
          self.assertEqual(foo.mul(1, 2), 2)
  
      def testdiv(self):
          from demo import foo
          self.assertEqual(foo.div(10, 2), 5)
  
  
  if __name__ == "__main__":
      unittest.main()
  
new_contents: '''
  Created on 25 Mar 2015
  
  @author: ssg37927
  '''
  import unittest
  
  
  class Test(unittest.TestCase):
  
      def testadd(self):
          from demo import foo
          self.assertEqual(foo.add(1, 2), 1)
  
      def testsub(self):
          from demo import foo
          self.assertEqual(foo.sub(5, 2), 2)
  
      def testmul(self):
          from demo import foo
          self.assertEqual(foo.mul(1, 2), 3)
  
      def testdiv(self):
          from demo import foo
          self.assertEqual(foo.div(10, 2), 4)
  
  
  if __name__ == "__main__":
      unittest.main()
  
subject: Break tests