Fix style issues in SSE mount_path tests

Fix linting issues in the SSE mount_path tests:
- Remove unused imports (pytest, Starlette, Mount, Route, UUID)
- Remove unused variables (app, app2, transport)
- Fix line length issues
- Improve code organization and formatting

These changes ensure the new tests conform to the project's
style guidelines and pass both ruff format and ruff check.

Author: tim-watcha

tests/server/sse/test_sse_mount_path.py

@@ -1,9 +1,6 @@
-import pytest
-from starlette.applications import Starlette
-from starlette.routing import Mount, Route
-from urllib.parse import quote
-from uuid import UUID, uuid4
 from unittest.mock import patch
+from urllib.parse import quote
+from uuid import uuid4
 
 from mcp.server.fastmcp import FastMCP
 from mcp.server.sse import SseServerTransport
@@ -33,8 +30,8 @@ def test_sse_transport_endpoint_formation(self):
     def test_fastmcp_sse_transport_integration(self):
         """Test the integration between FastMCP and SseServerTransport with mount paths.
 
-        Verifies that FastMCP correctly generates normalized endpoints based on mount_path
-        settings and passes them to the SseServerTransport.
+        Verifies that FastMCP correctly generates normalized endpoints based on
+        mount_path settings and passes them to the SseServerTransport.
         """
         # Test cases with different mount path configurations
         test_cases = [
@@ -56,13 +53,13 @@ def test_fastmcp_sse_transport_integration(self):
             # Verify the normalized endpoint matches expectations
             assert normalized_endpoint == expected_endpoint
 
-            # Create app and verify mount_path setting is preserved or updated
-            app = mcp.sse_app()
+            # Verify mount_path setting is preserved
+            mcp.sse_app()
             assert mcp.settings.mount_path == mount_path
 
             # Test with direct mount_path parameter
             mcp2 = FastMCP()
-            app2 = mcp2.sse_app(mount_path=mount_path)
+            mcp2.sse_app(mount_path=mount_path)
 
             # Verify the mount_path was correctly set in settings
             assert mcp2.settings.mount_path == mount_path
@@ -96,9 +93,6 @@ def test_sse_session_uri_construction(self):
 
         with patch("uuid.uuid4", return_value=test_uuid):
             for endpoint, expected_encoded_prefix in test_cases:
-                # Create SSE transport with the endpoint
-                transport = SseServerTransport(endpoint)
-
                 # Manually construct the session_uri as done in connect_sse
                 session_uri = f"{quote(endpoint)}?session_id={test_uuid.hex}"