diff --git a/la_chariotte/order/tests/test_models.py b/la_chariotte/order/tests/test_models.py
index d1dfe2e..1403305 100644
--- a/la_chariotte/order/tests/test_models.py
+++ b/la_chariotte/order/tests/test_models.py
@@ -14,22 +14,22 @@ pytestmark = pytest.mark.django_db
 class TestGroupedOrderModel:
     """Tests for Grouped orders model"""
 
-    def test_is_ongoing_with_ongoing_grouped_order(self):
+    def test_is_open_with_ongoing_grouped_order(self):
         """
-        is_ongoing() returns True if the deadline is not crossed
+        is_open() returns True if the deadline is not crossed
         """
         deadline = timezone.now() + datetime.timedelta(days=10)
 
         ongoing_gr_order = GroupedOrder(deadline=deadline)
-        assert ongoing_gr_order.is_ongoing()
+        assert ongoing_gr_order.is_open()
 
-    def test_is_ongoing_with_old_grouped_order(self):
+    def test_is_open_with_old_grouped_order(self):
         """
-        is_ongoing() returns False if the deadline is crossed
+        is_open() returns False if the deadline is crossed
         """
         deadline = timezone.now() - datetime.timedelta(hours=1)
         old_gr_order = GroupedOrder(deadline=deadline)
-        assert not old_gr_order.is_ongoing()
+        assert not old_gr_order.is_open()
 
     def test_is_to_be_delivered_with_today_delivery(self):
         """