core: services: wifi: test_WifiManager: Restore modules after import

Signed-off-by: Patrick José Pereira <patrickelectric@gmail.com>

Author: patrickelectric

core/services/wifi/test_WifiManager.py

@@ -5,12 +5,18 @@
 
 import pytest
 
+_saved = {name: sys.modules.get(name) for name in ("exceptions", "settings", "typedefs")}
 sys.path.insert(0, str(Path(__file__).absolute().parent))
-for name in ("exceptions", "settings", "typedefs"):
+for name in _saved:
     sys.modules.pop(name, None)
-
 from wifi_handlers.wpa_supplicant.WifiManager import WifiManager
 
+for name, module in _saved.items():
+    if module is not None:
+        sys.modules[name] = module
+    else:
+        sys.modules.pop(name, None)
+
 
 @pytest.mark.asyncio
 async def test_missing_iface_returns_unavailable_and_empty_lists() -> None: