diff --git a/product/ERP5/tests/testInventoryAPI.py b/product/ERP5/tests/testInventoryAPI.py
index 2bac549c46203e1b19f30bc6a0cd15995738b756..7a9b0e532f052bbc56cba1f099cbb623a27f6d7b 100644
--- a/product/ERP5/tests/testInventoryAPI.py
+++ b/product/ERP5/tests/testInventoryAPI.py
@@ -1771,10 +1771,6 @@ class TestInventoryDocument(InventoryAPITestCase):
      'resource_uid': self.resource.getUid(),
      'node_uid': self.node_uid,
      'date': self.INVENTORY_DATE_3},
-    {'inventory': -self.INVENTORY_QUANTITY_2,
-     'resource_uid': self.resource.getUid(),
-     'node_uid': self.node_uid,
-     'date': self.INVENTORY_DATE_3},
     {'inventory': self.BASE_QUANTITY,
      'resource_uid': self.resource.getUid(),
      'node_uid': self.node_uid,
@@ -1802,10 +1798,6 @@ class TestInventoryDocument(InventoryAPITestCase):
      'resource_uid': self.resource.getUid(),
      'node_uid': self.node_uid,
      'date': self.INVENTORY_DATE_3},
-    {'inventory': -self.INVENTORY_QUANTITY_2,
-     'resource_uid': self.resource.getUid(),
-     'node_uid': self.node_uid,
-     'date': self.INVENTORY_DATE_3},
     {'inventory': self.BASE_QUANTITY,
      'resource_uid': self.resource.getUid(),
      'node_uid': self.node_uid,