fix test name

tests/test_prompt_tokenizers.py

@@ -56,7 +56,7 @@ class TestPromptTokenizationStrategies(unittest.TestCase):
             self.assertEqual(len(example[fields]), len(tokenized_conversation[fields]))
             self.assertEqual(example[fields], tokenized_conversation[fields])
 
-    def test_completion(self):
+    def test_no_sys_prompt(self):
         """
         tests the interface between the user and assistant parts
         """