diff --git a/lib/test_configread.py b/lib/test_configread.py
index e48db71..6755381 100644
--- a/lib/test_configread.py
+++ b/lib/test_configread.py
@@ -284,6 +284,9 @@ class TestWerkstoffeFromLocalConfigs(unittest.TestCase):
         """
 
         WKST_CFG = manage_configs.WerkstoffeConfig(self.config_dir, 'Werkstoff.cfg')
+        wnamen = WKST_CFG.get_werkstoff_namen()
+        result = ['Stahl', 'Aluminium', 'Kunst-/ Verbundstoff', 'Schwermetall']
+        self.assertCountEqual(wnamen, result)
 
         steels = WKST_CFG.get_werkstoffe_of_name("Stahl")
         result = ['1.0035 (S185)', '1.0038 (S235JR)', '1.0122 (S235JRC)',