old_contents: import unittest
  from tip.algorithms.dummy import dummy_add
  
  
  class TestDummyAdd(unittest.TestCase):
      def test_lcm(self):
          r = dummy_add(2, 2)
          self.assertEqual(r, 4)
  
new_contents: import unittest
  from tip.algorithms.dummy import dummy_add
  
  
  class TestDummyAdd(unittest.TestCase):
  
      def test_lcm(self):
          r = dummy_add(2, 2)
          self.assertEqual(r, 4)
  
subject: Test PEP8 integration into Atom