text: import unittest
  
  from katas.kyu_6.single_word_pig_latin import pig_latin
  
  
  class PigLatinTestCase(unittest.TestCase):
      def test_equal_1(self):
          self.assertEqual(pig_latin('map'), 'apmay')
  
      def test_equal_2(self):
          self.assertEqual(pig_latin('egg'), 'eggway')
  
      def test_equal_3(self):
          self.assertEqual(pig_latin('spaghetti'), 'aghettispay')
  
      def test_equal_4(self):
          self.assertEqual(pig_latin('zqxy'), 'zqxyay')
  
      def test_is_none_1(self):
          self.assertIsNone(pig_latin(''))
  
      def test_is_none_2(self):
          self.assertIsNone(pig_latin('!@#$%'))
  