auth unit tests & ruff visual fix

src/service/auth/auth.py

@@ -1,13 +1,15 @@
-from datetime import datetime, timedelta, timezone
+from datetime import UTC, datetime, timedelta
 from uuid import UUID
 
 from fastapi import Request
-from .jwt import Jwt, Hashes
-from src.database.users.crud import UsersCrudActions
+
 from src.database.auth.refresh_tokens import JwtCrudActions
+from src.database.users.crud import UsersCrudActions
 from src.errors.http_errors.errors import Errors
-from src.models.pydantic_models.model import RefreshTokensCreate, UserOut
 from src.models.configs_read.env import env_settings
+from src.models.pydantic_models.model import RefreshTokensCreate, UserOut
+
+from .jwt import Hashes, Jwt
 
 
 class CurrentUser:
@@ -78,7 +80,7 @@ class CurrentUser:
             token_hash=self.hash.token_to_hash(token),
             device_info=request.headers.get("user-agent", "unknown"),
             ip_address=request.headers.get("x-forwarded-for", "").split(",")[0].strip() or (request.client.host if request.client else "unknown"),
-            expires_at=datetime.now(timezone.utc)+timedelta(days=env_settings.REFRESH_TOKEN_EXPIRE_DAYS)
+            expires_at=datetime.now(UTC)+timedelta(days=env_settings.REFRESH_TOKEN_EXPIRE_DAYS)
         )
         self.jwt_db_actions.create_token(RefreshTokensCreate.model_dump(token_record))
         
@@ -113,8 +115,8 @@ class CurrentUser:
         '''sqlite constraints about timezone'''
         expires_at=old_record.expires_at
         if expires_at.tzinfo is None:
-            expires_at = expires_at.replace(tzinfo=timezone.utc)
-        if expires_at<datetime.now(timezone.utc):
+            expires_at = expires_at.replace(tzinfo=UTC)
+        if expires_at<datetime.now(UTC):
             raise self.error.credentials_error(detail="Token expired")      
         
         '''user check'''    
@@ -142,7 +144,7 @@ class CurrentUser:
             token_hash=self.hash.token_to_hash(new_refresh_token),
             device_info=request.headers.get("user-agent", "unknown"),
             ip_address=request.headers.get("x-forwarded-for", "").split(",")[0].strip() or (request.client.host if request.client else "unknown"),
-            expires_at=datetime.now(timezone.utc)+timedelta(days=env_settings.REFRESH_TOKEN_EXPIRE_DAYS),
+            expires_at=datetime.now(UTC)+timedelta(days=env_settings.REFRESH_TOKEN_EXPIRE_DAYS),
         )
         self.jwt_db_actions.create_token(RefreshTokensCreate.model_dump(new_token_record))