change test file

rerank_esmm.py

@@ -192,7 +192,7 @@ def to_data_base():
     cursor = db.cursor()
     sql = "select device_id from esmm_device_diary_queue limit 6"
     cursor.execute(sql)
-    result = cursor.fetchall()
+    result = cursor.fetchone()
     print(result)
     print(set(result))
     db.close()