fix: test already existed, modify existant

Author: adamsaimi

tests/issues/test_783_mount_path_sse_message.py

@@ -99,7 +99,7 @@ async def test_starlette_routes_with_mount_path(self):
 
         # Verify path values
         assert sse_routes[0].path == "/sse", "SSE route path should be /sse"
-        assert mount_routes[0].path == "/messages", "Mount route path should be /messages"
+        assert mount_routes[0].path == "api/messages", "Mount route path should be /messages"
 
         # Test with mount path as parameter
         mcp = FastMCP()
@@ -115,7 +115,7 @@ async def test_starlette_routes_with_mount_path(self):
 
         # Verify path values
         assert sse_routes[0].path == "/sse", "SSE route path should be /sse"
-        assert mount_routes[0].path == "/messages", "Mount route path should be /messages"
+        assert mount_routes[0].path == "param/messages", "Mount route path should be /messages"
 
     @pytest.mark.anyio
     async def test_non_ascii_description(self):