diff --git a/functions/calculation_rules.py b/functions/calculation_rules.py
index 64d76ee194f80f0f3a6b59a958481ce7ed283c00..e9d20f109763fe70b9c31672035a9869081e63e1 100644
--- a/functions/calculation_rules.py
+++ b/functions/calculation_rules.py
@@ -1,6 +1,8 @@
 '''
 File consists of several functions for the calculation rules of FAIR Quality KPIs
 '''
+def test_function():
+    print("You called the test function.")
 
 
 if __name__ == "__main__":