Verify respx mock routes are cleaned up when tests finish (#122852)

tests/conftest.py

@@ -34,6 +34,7 @@ import multidict
 import pytest
 import pytest_socket
 import requests_mock
+import respx
 from syrupy.assertion import SnapshotAssertion
 
 from homeassistant import block_async_io
@@ -398,6 +399,13 @@ def verify_cleanup(
         # Restore the default time zone to not break subsequent tests
         dt_util.DEFAULT_TIME_ZONE = datetime.UTC
 
+    try:
+        # Verify respx.mock has been cleaned up
+        assert not respx.mock.routes, "respx.mock routes not cleaned up, maybe the test needs to be decorated with @respx.mock"
+    finally:
+        # Clear mock routes not break subsequent tests
+        respx.mock.clear()
+
 
 @pytest.fixture(autouse=True)
 def reset_hass_threading_local_object() -> Generator[None]: