refactor: EnumText for preferred_provider_type MessageChain, Banner (#33696)

Co-authored-by: autofix-ci[bot] <114827586+autofix-ci[bot]@users.noreply.github.com>

api/tests/test_containers_integration_tests/services/test_messages_clean_service.py

@@ -11,7 +11,7 @@ from sqlalchemy.orm import Session
 from enums.cloud_plan import CloudPlan
 from extensions.ext_redis import redis_client
 from models.account import Account, Tenant, TenantAccountJoin, TenantAccountRole
-from models.enums import DataSourceType
+from models.enums import DataSourceType, MessageChainType
 from models.model import (
     App,
     AppAnnotationHitHistory,
@@ -236,7 +236,7 @@ class TestMessagesCleanServiceIntegration:
         # MessageChain
         chain = MessageChain(
             message_id=message.id,
-            type="system",
+            type=MessageChainType.SYSTEM,
             input=json.dumps({"test": "input"}),
             output=json.dumps({"test": "output"}),
         )

api/tests/unit_tests/controllers/console/explore/test_banner.py

@@ -2,6 +2,7 @@ from datetime import datetime
 from unittest.mock import MagicMock, patch
 
 import controllers.console.explore.banner as banner_module
+from models.enums import BannerStatus
 
 
 def unwrap(func):
@@ -20,7 +21,7 @@ class TestBannerApi:
         banner.content = {"text": "hello"}
         banner.link = "https://example.com"
         banner.sort = 1
-        banner.status = "enabled"
+        banner.status = BannerStatus.ENABLED
         banner.created_at = datetime(2024, 1, 1)
 
         query = MagicMock()
@@ -54,7 +55,7 @@ class TestBannerApi:
         banner.content = {"text": "fallback"}
         banner.link = None
         banner.sort = 1
-        banner.status = "enabled"
+        banner.status = BannerStatus.ENABLED
         banner.created_at = None
 
         query = MagicMock()

api/tests/unit_tests/core/entities/test_entities_provider_configuration.py

@@ -410,7 +410,7 @@ def test_switch_preferred_provider_type_updates_existing_record_with_session() -
 
     configuration.switch_preferred_provider_type(ProviderType.SYSTEM, session=session)
 
-    assert existing_record.preferred_provider_type == ProviderType.SYSTEM.value
+    assert existing_record.preferred_provider_type == ProviderType.SYSTEM
     session.commit.assert_called_once()