diff --git a/tests/test_utils_hastepics.py b/tests/test_utils_hastepics.py
index 10a7b9ab0..70132a21a 100644
--- a/tests/test_utils_hastepics.py
+++ b/tests/test_utils_hastepics.py
@@ -43,6 +43,25 @@ def test_get_pv_connect_false_and_true():
 
 def test_motor_init_strips_suffixes():
     m1 = Motor("TEST:SIM:M1.VAL")
+
+    # Afficher les attributs de base de epics.Motor
+    print("Attributes of epics.Motor:")
+    print("  _init_list:", getattr(epics.Motor, "_init_list", []))
+    print("  _extras:", getattr(epics.Motor, "_extras", {}))
+
+    # Afficher les attributs de ton objet Motor
+    print("\nAttributes of Motor (custom):")
+    print("  _init_list:", getattr(m1, "_init_list", []))
+    print("  _extras:", getattr(m1, "_extras", {}))
+
+    # Afficher tous les attributs de epics.Motor (via dir())
+    print("\nAll attributes of epics.Motor:")
+    print(dir(epics.Motor))
+
+    # Afficher tous les attributs de ta classe Motor (via dir())
+    print("\nAll attributes of Motor (custom):")
+    print(dir(m1))
+
     assert m1._prefix == "TEST:SIM:M1"
 
     m2 = Motor("TEST:SIM:M2.")