Index: tests/test_logging.py
===================================================================
diff -u -r8ea13ae6dd10732bfcc456798f4785c4d88c95d3 -re10534f3df259e137e0ba14d897ecef42a767737
--- tests/test_logging.py	(.../test_logging.py)	(revision 8ea13ae6dd10732bfcc456798f4785c4d88c95d3)
+++ tests/test_logging.py	(.../test_logging.py)	(revision e10534f3df259e137e0ba14d897ecef42a767737)
@@ -14,12 +14,15 @@
 #
 ############################################################################
 import sys
+import subprocess
 sys.path.append("..")
 from dialin.dg.dialysate_generator import DG
 from dialin.hd.hemodialysis_device import HD
+from dialin.utils.base import create_logger
 import time
+import logging
+from logging import Logger
 
-
 def test_logging():
     """
     Prints the DG version.
@@ -40,5 +43,24 @@
             hd.ui.cmd_ui_request_hd_version()
 
 
+class HDDevice(HD):
+    def __init__(self):
+        super().__init__()
+        self.vvlogger = create_logger("vvlogger.log", "NOT_SET", enable_metadata=False, clear_before_write=True)
+        self.vvlogger.debug("VVLOGGER: INITIALIZE")
+        self.logger.debug("TESTING123")
+        self.vvlogger.getEffectiveLevel()
+
+
+def test_create_logger():
+    subprocess.call("rm *.log", shell=True)
+    hd = HDDevice()
+    print(hd.vvlogger.getEffectiveLevel())
+    hd.vvlogger.debug("VVLOGGER: TEST 1 (BEFORE DIALIN logger.debug() calls)")
+    hd.test_debug()
+    hd.vvlogger.debug("VVLOGGER: TEST 2 (AFTER DIALIN logger.debug() calls)")
+    # observe that no dialin logger.debug() messages appear in vvlogger.log
+    # and no dialin logger.debug() messages appear in the pycharm console (same behavior when running from terminal).
+
 if __name__ == '__main__':
-    test_logging()
+    test_create_logger()