Update tests/test_utils_pv.py

tests/test_utils_pv.py

@@ -8,6 +8,9 @@ from io import StringIO
 import colorama
 from slic.utils.pv import PV
 print("PV backend:", type(PV))
+import logging
+logging.warning("PV class origin: %s", pv.PV)
+
 '''
 
 # Caproto is used to simulate a real EPICS IOC for testing