Skip zero quantities when prefiling an inventory

issue3976
review6391002

inventory.py

@@ -216,6 +216,8 @@ class Inventory(Workflow, ModelSQL, ModelView):
                         or product2consumable[product_id]):
                     continue
                 quantity, uom_id = product_qty[product_id]
+                if not quantity:
+                    continue
                 values = Line.create_values4complete(product_id, inventory,
                     quantity, uom_id)
                 to_create.append(values)

tests/scenario_stock_inventory.rst

@@ -62,6 +62,7 @@ Get stock locations::
     >>> Location = Model.get('stock.location')
     >>> supplier_loc, = Location.find([('code', '=', 'SUP')])
     >>> storage_loc, = Location.find([('code', '=', 'STO')])
+    >>> customer_loc, = Location.find([('code', '=', 'CUS')])
 
 Create product::
 
@@ -119,3 +120,28 @@ Create an inventory::
     True
     >>> move.to_location == inventory.location
     True
+
+Empty storage::
+
+    >>> StockMove = Model.get('stock.move')
+    >>> outgoing_move = StockMove()
+    >>> outgoing_move.product = product
+    >>> outgoing_move.uom = unit
+    >>> outgoing_move.quantity = 2
+    >>> outgoing_move.from_location = storage_loc
+    >>> outgoing_move.to_location = customer_loc
+    >>> outgoing_move.planned_date = today
+    >>> outgoing_move.effective_date = today
+    >>> outgoing_move.company = company
+    >>> outgoing_move.unit_price = Decimal('100')
+    >>> outgoing_move.currency = currency
+    >>> outgoing_move.click('do')
+
+Create an inventory that should be empty after completion::
+
+    >>> Inventory = Model.get('stock.inventory')
+    >>> inventory = Inventory()
+    >>> inventory.location = storage_loc
+    >>> inventory.click('complete_lines')
+    >>> len(inventory.lines)
+    0