diff --git a/stock_reserve/__openerp__.py b/stock_reserve/__openerp__.py
index 8633fcfcd..17ccb24a7 100644
--- a/stock_reserve/__openerp__.py
+++ b/stock_reserve/__openerp__.py
@@ -52,6 +52,7 @@ reservations are canceled.
           'security/ir.model.access.csv',
           ],
  'auto_install': False,
- 'test': [],
+ 'test': ['test/stock_reserve.yml',
+          ],
  'installable': True,
  }
diff --git a/stock_reserve/model/stock_reserve.py b/stock_reserve/model/stock_reserve.py
index f3b8241b1..6466ac233 100644
--- a/stock_reserve/model/stock_reserve.py
+++ b/stock_reserve/model/stock_reserve.py
@@ -145,7 +145,13 @@ class stock_reservation(orm.Model):
         result = move_obj.onchange_product_id(
             cr, uid, move_ids, prod_id=product_id, loc_id=False,
             loc_dest_id=False, partner_id=False)
-        del result['value']['product_qty']  # keeps the current value
+        if result.get('value'):
+            vals = result['value']
+            # only keep the existing fields on the view
+            keep = ('product_uom', 'name')
+            result['value'] = dict((key, value) for key, value in
+                                   result['value'].iteritems() if
+                                   key in keep)
         return result
 
     def onchange_quantity(self, cr, uid, ids, product_id, product_qty, context=None):
diff --git a/stock_reserve/test/stock_reserve.yml b/stock_reserve/test/stock_reserve.yml
new file mode 100644
index 000000000..5cd92e29f
--- /dev/null
+++ b/stock_reserve/test/stock_reserve.yml
@@ -0,0 +1,63 @@
+-
+  I create a product to test the stock reservation
+-
+ !record {model: product.product, id: product_sorbet}:
+    default_code: 001SORBET
+    name: Sorbet
+    type: product
+    categ_id: product.product_category_1
+    list_price: 100.0
+    standard_price: 70.0
+    uom_id: product.product_uom_kgm
+    uom_po_id: product.product_uom_kgm
+    procure_method: make_to_stock
+    valuation: real_time
+    cost_method: average
+    property_stock_account_input: account.o_expense
+    property_stock_account_output: account.o_income
+-
+  I update the current stock of the Sorbet with 10 kgm
+-
+  !record {model: stock.change.product.qty, id: change_qty}:
+    new_quantity: 10
+    product_id: product_sorbet
+-
+  !python {model: stock.change.product.qty}: |
+    context['active_id'] = ref('stock_reserve.product_sorbet')
+    self.change_product_qty(cr, uid, [ref('change_qty')], context=context)
+-
+  I check Virtual stock of Sorbet after update stock.
+-
+  !python {model: product.product}: |
+    product = self.browse(cr, uid, ref('stock_reserve.product_sorbet'), context=context)
+    assert product.virtual_available == 10, "Stock is not updated."
+-
+  I create a stock reservation for 5 kgm
+-
+ !record {model: stock.reservation, id: reserv_sorbet1}:
+    product_id: product_sorbet
+    product_qty: 5.0
+    product_uom: product.product_uom_kgm
+    name: reserve 5 kgm of sorbet for test
+-
+  I confirm the reservation
+-
+  !python {model: stock.reservation}: |
+    self.reserve(cr, uid, [ref('reserv_sorbet1')], context=context)
+-
+  I check Virtual stock of Sorbet after update reservation
+-
+  !python {model: product.product}: |
+    product = self.browse(cr, uid, ref('stock_reserve.product_sorbet'), context=context)
+    assert product.virtual_available == 5, "Stock is not updated."
+-
+  I release the reservation
+-
+  !python {model: stock.reservation}: |
+    self.release(cr, uid, [ref('reserv_sorbet1')], context=context)
+-
+  I check Virtual stock of Sorbet after update reservation
+-
+  !python {model: product.product}: |
+    product = self.browse(cr, uid, ref('stock_reserve.product_sorbet'), context=context)
+    assert product.virtual_available == 10, "Stock is not updated."