diff --git a/addons/purchase/purchase_workflow.xml b/addons/purchase/purchase_workflow.xml
index a194cd16713..d14530e5f48 100644
--- a/addons/purchase/purchase_workflow.xml
+++ b/addons/purchase/purchase_workflow.xml
@@ -103,6 +103,7 @@
         <record id="trans_confirmed_router" model="workflow.transition">
             <field name="act_from" ref="act_confirmed"/>
             <field name="act_to" ref="act_router"/>
+            <field name="signal">purchase_approve</field>
         </record>
         <record id="trans_router_picking" model="workflow.transition">
             <field name="act_from" ref="act_router"/>
diff --git a/addons/purchase/test/procurement_buy.yml b/addons/purchase/test/procurement_buy.yml
new file mode 100644
index 00000000000..011e70d0cdc
--- /dev/null
+++ b/addons/purchase/test/procurement_buy.yml
@@ -0,0 +1,109 @@
+-
+  In order to test the procurement with product type buy in OpenERP, I will create product 
+  and then I will create procurement for this product.
+-        
+  I create  product.
+- 
+  !record {model: product.product, id: product_product_cddrive0}:
+    categ_id: product.product_category_3
+    cost_method: standard
+    mes_type: fixed
+    name: CD drive
+    procure_method: make_to_order
+    supply_method: buy
+    type: product
+    uom_id: product.product_uom_unit
+    uom_po_id: product.product_uom_unit
+    valuation: manual_periodic
+    volume: 0.0
+    warranty: 0.0
+    weight: 0.0
+    weight_net: 0.0
+    seller_ids:
+      - delay: 1
+        name: base.res_partner_asus
+        qty: 5.0
+-  
+  I create  procurement order.
+- 
+  !record {model: procurement.order, id: procurement_order_testcase0}:
+    company_id: base.main_company
+    date_planned: '2010-07-07 15:38:53'
+    location_id: stock.stock_location_stock
+    name: Test Case
+    priority: '1'
+    procure_method: make_to_order
+    product_id: product_product_cddrive0
+    product_qty: 5.0
+    product_uom: product.product_uom_unit
+    product_uos: product.product_uom_unit
+    product_uos_qty: 0.0
+    state: draft
+- 
+  I confirm on procurement order.
+- 
+  !workflow {model: procurement.order, action: button_confirm, ref: procurement_order_testcase0}
+- 
+  I run the scheduler.
+- 
+  !workflow {model: procurement.order, action: button_check, ref: procurement_order_testcase0}
+-
+  I check that  purchase order is generated.
+-
+  !python {model: procurement.order}: |
+    from tools.translate import _
+    proc_ids = self.browse(cr, uid, [ref('procurement_order_testcase0')])[0]
+    assert(proc_ids.purchase_id), _('Purchase Order is not Created!')
+-
+  I check the state is running.
+-
+  !python {model: procurement.order}: |
+    from tools.translate import _
+    proc_ids = self.browse(cr, uid, [ref('procurement_order_testcase0')])[0]
+    assert(proc_ids.state == 'running'), _('Exception') 
+- 
+  I confirm  and Approve the purchase order.
+- 
+  !python {model: purchase.order}: |
+    procurement_obj = self.pool.get('procurement.order')
+    proc_ids = procurement_obj.browse(cr, uid, [ref('procurement_order_testcase0')])[0]
+    import netsvc
+    wf_service = netsvc.LocalService("workflow")
+    wf_service.trg_validate(uid, 'purchase.order',proc_ids.purchase_id.id,'purchase_confirm', cr)  
+    wf_service.trg_validate(uid, 'purchase.order',proc_ids.purchase_id.id,'purchase_approve', cr)  
+-   
+  I receive the order of the supplier ASUStek from the Incoming Shipments menu.
+-   
+  !python {model: stock.picking }: |
+   import time
+   procurement_obj = self.pool.get('procurement.order')
+   proc_ids = procurement_obj.browse(cr, uid, [ref('procurement_order_testcase0')])[0] 
+   picking_id = self.search(cr, uid, [('origin', '=', proc_ids.purchase_id.name)])
+   if picking_id:
+      pick=self.browse(cr,uid,picking_id[0])
+      move =pick.move_lines[0]
+      partial_datas = {
+           'partner_id':pick.address_id.partner_id.id,
+            'address_id': pick.address_id.id,
+            'delivery_date' : time.strftime('%Y-%m-%d')
+           }
+      partial_datas['move%s'%(move.id)]= {
+          'product_id': move.product_id,
+          'product_qty': move.product_qty,
+          'product_uom': move.product_uom.id,
+      } 
+      self.do_partial(cr, uid, picking_id,partial_datas)
+-
+  I confirm the Reservation.
+-
+  !python {model: stock.move }: |
+   procurement_obj = self.pool.get('procurement.order')
+   proc_ids = procurement_obj.browse(cr, uid, [ref('procurement_order_testcase0')])[0]
+   self.action_done(cr,uid,[proc_ids.move_id.id])
+-
+  I check the state is Done.
+-
+  !python {model: procurement.order}: |
+    from tools.translate import _
+    proc_ids = self.browse(cr, uid, [ref('procurement_order_testcase0')])[0]
+    assert(proc_ids.state == 'done'), _('Order is not in done state')