def test_ziplist3x3(self):
     """search engine - ziplist 3 x 3"""
     self.assertEqual(search_engine.ziplist([1, 2, 3], ['a', 'b', 'c'], [9, 8, 7]),
                      [[1, 'a', 9], [2, 'b', 8], [3, 'c', 7]])
 def test_ziplist2x2(self):
     """search engine - ziplist 2 x 2"""
     self.assertEqual(search_engine.ziplist([1, 2], [3, 4]), [[1, 3], [2, 4]])
 def test_ziplist2x2(self):
     """search engine - ziplist 2 x 2"""
     self.assertEqual(search_engine.ziplist([1, 2], [3, 4]),
                      [[1, 3], [2, 4]])
 def test_ziplist3x3(self):
     """search engine - ziplist 3 x 3"""
     self.assertEqual(
         search_engine.ziplist([1, 2, 3], ['a', 'b', 'c'], [9, 8, 7]),
         [[1, 'a', 9], [2, 'b', 8], [3, 'c', 7]])
 def test_ziplist3x3(self):
     """search engine - ziplist 3 x 3"""
     self.assertEqual(
         search_engine.ziplist([1, 2, 3], ["a", "b", "c"], [9, 8, 7]), [[1, "a", 9], [2, "b", 8], [3, "c", 7]]
     )