fix(llm_http_handler): keep provider error text when re-raising mapped errors

Co-Authored-By: Devin AI <158243242+devin-ai-integration[bot]@users.noreply.github.com>

litellm/llms/custom_httpx/llm_http_handler.py

@@ -6000,7 +6000,7 @@ class BaseLLMHTTPHandler:
         if error_headers is None and error_response:
             error_headers = getattr(error_response, "headers", None)
         if error_response and hasattr(error_response, "text"):
-            error_text = getattr(error_response, "text", error_text)
+            error_text = getattr(error_response, "text", None) or error_text
         if error_headers:
             error_headers = dict(error_headers)
         else:

tests/unit/test_model_block_unblock.py

@@ -195,7 +195,7 @@ async def test_route_request_returns_403_when_model_is_fully_blocked(monkeypatch
 
     with pytest.raises(litellm.PermissionDeniedError) as exc_info:
         await route_request(
-            data={"model": "gpt-4o"},
+            data={"model": "gpt-4o", "data_source_config": {"type": "custom"}, "testing_criteria": []},
             llm_router=router,
             user_model=None,
             route_type="acreate_eval",

tests/unit/test_video_generation.py

@@ -1109,6 +1109,7 @@ def test_video_content_handler_passes_variant_to_url():
     mock_client = MagicMock(spec=HTTPHandler)
     mock_response = MagicMock()
     mock_response.content = b"thumbnail-bytes"
+    mock_response.status_code = 200
     mock_client.get.return_value = mock_response
 
     with patch(
@@ -1154,6 +1155,7 @@ def test_video_content_handler_uses_get_for_openai():
     mock_client = MagicMock(spec=HTTPHandler)
     mock_response = MagicMock()
     mock_response.content = b"mp4-bytes"
+    mock_response.status_code = 200
     mock_client.get.return_value = mock_response
 
     # Patch _get_httpx_client to ensure no real HTTP client is created