def test_11(self):
     self.assertEqual(a.look_and_say('11'), '21')
 def test_111221(self):
     expected = '312211'
     actual = a.look_and_say('111221')
     self.assertEqual(actual, expected)
 def test_21(self):
     self.assertEqual(a.look_and_say('21'), '1211')
 def test_11(self):
     self.assertEqual(a.look_and_say('11'), '21')
 def test_111221(self):
     expected = '312211'
     actual = a.look_and_say('111221')
     self.assertEqual(actual, expected)
 def test_21(self):
     self.assertEqual(a.look_and_say('21'), '1211')