def test_no_line(self):
     comment("").subscribe(lambda result :
     self.assertEqual(result, ""))
 def test_one_line(self):
     comment("Hello").subscribe(lambda result : self.assertEqual(result, "/*\n * Hello\n */\n"))
 def test_multiple_lines(self):
     comment("Hello\nworld").subscribe(lambda result : self.assertEqual(result, "/*\n * Hello\n * world\n */\n"))