diff --git a/addons/purchase/__openerp__.py b/addons/purchase/__openerp__.py
index 1fb49198404..d52c84ceedf 100644
--- a/addons/purchase/__openerp__.py
+++ b/addons/purchase/__openerp__.py
@@ -65,6 +65,7 @@ Dashboard for purchase management that includes:
              'purchase_unit_test.xml',
              'test/procurement_buy.yml',
              'test/purchase_report.yml',
+             'test/purchase_order_merge.yml'
     ],
     'demo': ['purchase_demo.xml'],
     'installable': True,
diff --git a/addons/purchase/test/purchase_order_merge.yml b/addons/purchase/test/purchase_order_merge.yml
new file mode 100644
index 00000000000..fab75f63037
--- /dev/null
+++ b/addons/purchase/test/purchase_order_merge.yml
@@ -0,0 +1,85 @@
+-
+  In order to test to merge two purchase order,I start by creating a new product 'Nokia3110c'
+-
+ !record {model: product.product, id: product_product_nokia3110c}:
+    categ_id: 'product.product_category_3'
+    cost_method: standard
+    mes_type: fixed
+    name: NOKIA 3110c
+    price_margin: 1.0
+    procure_method: make_to_order
+    property_stock_inventory: stock.location_inventory
+    property_stock_procurement: stock.location_procurement
+    property_stock_production: stock.location_production
+    seller_delay: '1'
+    standard_price: 5000.0
+    supply_method: buy
+    type: product
+    uom_id: product.product_uom_unit
+    uom_po_id: product.product_uom_unit
+    volume: 0.0
+    warranty: 0.0
+    weight: 0.0
+    weight_net: 0.0
+-
+  In order to test the merge purchase order flow,I create a new record where "invoice_method" is From Order.
+-
+  I create first purchase order for Nokia3110c.
+-
+  !record {model: purchase.order, id: purchase_order_po_nokia1}:
+    company_id: base.main_company
+    date_order: !eval time.strftime('%Y-%m-%d')
+    invoice_method: order
+    location_id: stock.stock_location_stock
+    order_line:
+      - date_planned: !eval time.strftime('%Y-%m-%d')
+        name: NOKIA 3110c
+        price_unit: 100.0
+        product_id: 'product_product_nokia3110c'
+        product_qty: 10.0
+        product_uom: product.product_uom_unit
+        state: draft
+    partner_address_id: base.res_partner_address_7
+    partner_id: base.res_partner_4
+    pricelist_id: purchase.list0
+-
+  Initially first purchase order is in the draft state.
+-
+  !assert {model: purchase.order, id: purchase_order_po_nokia1}:
+    - state == 'draft'
+-
+  I create second purchase order for Nokia3110c with same supplier,have same stock location, same pricelist as First Purchase order of Nokia3110.
+-
+  !record {model: purchase.order, id: purchase_order_po_nokia2}:
+    company_id: base.main_company
+    date_order: !eval time.strftime('%Y-%m-%d')
+    invoice_method: order
+    location_id: stock.stock_location_stock
+    order_line:
+      - date_planned: !eval time.strftime('%Y-%m-%d')
+        name: NOKIA 3110c
+        price_unit: 100.0
+        product_id: 'product_product_nokia3110c'
+        product_qty: 20.0
+        product_uom: product.product_uom_unit
+        state: draft
+    partner_address_id: base.res_partner_address_7
+    partner_id: base.res_partner_4
+    pricelist_id: purchase.list0
+-
+  Initially second purchase order is in the draft state.
+-
+  !assert {model: purchase.order, id: purchase_order_po_nokia2}:
+    - state == 'draft'
+-
+  I have merged first and second purchase order which are in draft state, belong to the same supplier,have same stock location, same pricelist.
+-
+  !python {model: purchase.order.group}: |
+    pur_obj=self.pool.get('purchase.order')
+    pur_id11=pur_obj.browse(cr, uid, ref("purchase_order_po_nokia1"))
+    pur_id1=pur_id11.id
+    pur_id22=pur_obj.browse(cr, uid, ref("purchase_order_po_nokia2"))
+    pur_id2=pur_id22.id
+    ids = [pur_id1,pur_id2]
+    self.fields_view_get(cr, uid, context={'active_ids': ids})	
+    self.merge_orders(cr, uid, [1], context={'active_ids': ids})