diff --git a/test/python/test_serialize.py b/test/python/test_serialize.py
index 763828c..5e9668d 100644
--- a/test/python/test_serialize.py
+++ b/test/python/test_serialize.py
@@ -74,6 +74,17 @@ def get_kwargs(key, additional):
     return kwargs
 
 
+def error_dump(e):
+    if ERROR_UNCATCHED:
+        raise
+    import traceback
+
+    logger.error("==========[STACK TRACE]==========")
+    for trace in traceback.format_exc().split("\n"):
+        logger.error(trace)
+    logger.info("================================")
+
+
 api_conf = pt.Configuration(
     api_key={
         "ClientLanguage": "en",
@@ -123,15 +134,27 @@ for x in [pt.DefaultApi, pt.TweetApi, pt.UserApi, pt.UsersApi, pt.UserListApi]:
                 time.sleep(SLEEP_TIME)
 
         except Exception as e:
-            if ERROR_UNCATCHED:
-                raise
-            import traceback
-
-            logger.error("==========[STACK TRACE]==========")
-            for trace in traceback.format_exc().split("\n"):
-                logger.error(trace)
-            logger.info("================================")
+            error_dump(e)
             error_count += 1
 
+
+try:
+    logger.info(f"Try: Self UserByScreenName Test")
+    kwargs = get_kwargs("UserByScreenName", {"screen_name": "a810810931931"})
+    res = pt.UserApi(api_client).get_user_by_screen_name(**kwargs).to_dict()
+    if not res["data"]["user"]["result"]["legacy"]["screen_name"] == "a810810931931":
+        raise Exception("UserByScreenName failed")
+except Exception as e:
+    error_dump(e)
+    error_count += 1
+
+try:
+    logger.info(f"Try: Self UserTweets Test")
+    kwargs = get_kwargs("UserTweets", {"userId": "1180389371481976833"})
+    pt.TweetApi(api_client).get_user_tweets(**kwargs)
+except Exception as e:
+    error_dump(e)
+    error_count += 1
+
 if error_count > 0:
     exit(1)
diff --git a/tools/hooks.py b/tools/hooks.py
index 2e35c27..4546554 100644
--- a/tools/hooks.py
+++ b/tools/hooks.py
@@ -118,6 +118,20 @@ class SchemasCheck(SchemasHookBase):
         return value
 
 
+class RequiredCheck(SchemasHookBase):
+    def hook(self, value: dict):
+        required = value.get("required", [])
+
+        for key, property in value.get("properties", {}).items():
+            if key in required and property.get("default") is not None:
+                print(f"{key} is required and has default value")
+            d = property.get("default") is None and property.get("nullable", False)
+            if property not in required and d:
+                print(f"{key} is not required and has no default value")
+
+        return value
+
+
 # RequestHookBase extends