#test
 def test_create_purchase_order
    # Login as a clerk

    user = users(:clerk_1)
    get_via_redirect '/login'
    assert_redirected_to '/login/login'
    post_via_redirect '/login/login', :user => {:login => user.email, :password => 'secretive' }
    assert_redirected_to '/'


    # Check the units can be changed
    assert user.company.units == 'kg'
    post_via_redirect '/data_entry/update_units', {:units => 'tonne'}
    assert_redirected_to :action => :index
    user.company.reload
    assert user.company.units == 'tonne'

    # You need to scan the response here to find the relevant periods!!!

	  period = periods(:period_one)
	  category =  categories(:one)
      fishery_profile = fishery_profiles(:fishery_profile_30)
      po =  purchase_orders(:one)
	  supplier = user.company
	  puts "narayan"
	  puts period.inspect
	  puts supplier.inspect
	  xml_http_request :put, "/data_entry/create_purchase_order",:periodic_purchase_id => po.id,      :category_id => category.name, :volume  => 20,:fishery_profile_id => fishery_profile.name,:period_id      => period.name,@supplier=> supplier,:po_action =>"create",:overwrite_duplicate =>"false"


	  assert_select_rjs  :replace_html,'data_entry'
	  assert_equal "Purchase order for period #{period.name} created successfully.", flash.now[:message]


  end

period.yaml
period_one:
  id: 1
  name: 2010-Apr
  start_date: 2010-04-01
  end_date: 2010-04-30
  type: BusinessMonth
  created_at: 2010-04-16 11:46:01.666327
  updated_at: 2010-04-16 11:46:01.666327

period_two:
  id: 2
  name: 2010-Mar
  start_date: 2010-03-01
  end_date: 2010-03-31
  type: BusinessMonth
  created_at: 2010-04-16 11:46:01.679228
  updated_at: 2010-04-16 11:46:01.679228

period_purchase.yml
po_one:
  id: 1
  title: Demo Retailer purchases from Acme for period 2010-Apr
  period_id: 1
  supplier_id: 2
  created_at: 2010-04-16 11:59:09.768127
  updated_at: 2010-04-16 11:59:09.768127

po_two:
  id: 2
  title: Demo Retailer purchases from Acme for period 2010-May
  period_id: 2
  supplier_id: 2
  created_at: 2010-05-10 15:08:56.72103
  updated_at: 2010-05-10 15:08:56.72103

purchaseorder.yml
one:
  id: 1
  periodic_purchase_id: 1
  category_id: 1
  volume: 30
  profile_id: 3
  transaction_date:
  created_at: 2010-04-20 10:44:31.956792
  updated_at: 2010-04-20 10:44:31.956792

two:
  id: 2
  periodic_purchase_id: 1
  category_id: 1
  volume: 20
  profile_id: 4
  transaction_date:
  created_at: 2010-04-20 10:44:32.020315
  updated_at: 2010-04-20 10:48:35.43639