diff --git a/src/test/py/test_logical_operations.py b/src/test/py/test_logical_operations.py
index 3f96f90..302c8e3 100644
--- a/src/test/py/test_logical_operations.py
+++ b/src/test/py/test_logical_operations.py
@@ -30,6 +30,9 @@ class calculationsWithRoots(unittest.TestCase):
     def test_conjunctive_identity_0_and_1_equals_0(self):
         self.assertEqual(identity_conjunctive(0, ".", 1), 0)
 
+    def test_conjunctive_identity_0_and_1_equals_01(self):
+        self.assertEqual(identity_conjunctive(1, ".", 1), 1)
+
 
 if __name__ == "__main__":
     unittest.main()