test(mcp): Assert span status in non-streaming error paths

The non-streaming branches of test_prompt_handler_with_error and
test_resource_handler_with_error only verified error-event fields,
leaving span status and transaction shape unchecked. Mirror the
streaming-branch assertions and the tool-handler test pattern so
regressions in classic-mode error handling for prompts and resources
are caught.

Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>

Author: ericapisani

tests/integrations/mcp/test_mcp.py

@@ -707,6 +707,14 @@ async def failing_prompt(name, arguments):
         assert error_event["level"] == "error"
         assert error_event["exception"]["values"][0]["type"] == "RuntimeError"
 
+        # Check transaction and span
+        assert tx["type"] == "transaction"
+        assert len(tx["spans"]) == 1
+        span = tx["spans"][0]
+
+        assert span["status"] == "internal_error"
+        assert SPANDATA.MCP_TOOL_RESULT_IS_ERROR not in span["data"]
+
 
 @pytest.mark.asyncio
 @pytest.mark.parametrize("span_streaming", [True, False])
@@ -935,6 +943,14 @@ def failing_resource(uri):
         assert error_event["level"] == "error"
         assert error_event["exception"]["values"][0]["type"] == "FileNotFoundError"
 
+        # Check transaction and span
+        assert tx["type"] == "transaction"
+        assert len(tx["spans"]) == 1
+        span = tx["spans"][0]
+
+        assert span["status"] == "internal_error"
+        assert SPANDATA.MCP_TOOL_RESULT_IS_ERROR not in span["data"]
+
 
 @pytest.mark.asyncio
 @pytest.mark.parametrize("span_streaming", [True, False])