Add test for invoice based on shipment with partial delivery

issue4003
review5581002

tests/scenario_purchase.rst

@@ -605,3 +605,74 @@ Check service purchase states::
     u'none'
     >>> service_purchase.state
     u'done'
+
+Create a purchase to be invoiced on shipment partialy and check correctly
+linked to invoices::
+
+    >>> purchase = Purchase()
+    >>> purchase.party = supplier
+    >>> purchase.payment_term = payment_term
+    >>> purchase.invoice_method = 'shipment'
+    >>> line = purchase.lines.new()
+    >>> line.product = product
+    >>> line.quantity = 10.0
+    >>> purchase.click('quote')
+    >>> purchase.click('confirm')
+    >>> purchase.click('process')
+    >>> config.user = stock_user.id
+    >>> shipment = ShipmentIn()
+    >>> shipment.supplier = supplier
+    >>> for move in purchase.moves:
+    ...     incoming_move = Move(id=move.id)
+    ...     incoming_move.quantity = 5.0
+    ...     shipment.incoming_moves.append(incoming_move)
+    >>> shipment.save()
+    >>> for move in shipment.inventory_moves:
+    ...     move.quantity = 5.0
+    >>> shipment.click('receive')
+    >>> shipment.click('done')
+    >>> config.user = purchase_user.id
+    >>> purchase.reload()
+    >>> invoice, = purchase.invoices
+    >>> invoice_line, = invoice.lines
+    >>> invoice_line.quantity
+    5.0
+    >>> stock_move, = invoice_line.stock_moves
+    >>> stock_move.quantity
+    5.0
+    >>> stock_move.state
+    u'done'
+
+Create a sale to be sent on invoice partialy and check correctly linked to
+invoices::
+
+    >>> sale = Sale()
+    >>> sale.party = customer
+    >>> sale.payment_term = payment_term
+    >>> sale.shipment_method = 'invoice'
+    >>> line = sale.lines.new()
+    >>> line.product = product
+    >>> line.quantity = 10.0
+    >>> sale.click('quote')
+    >>> sale.click('confirm')
+    >>> sale.click('process')
+    >>> invoice, = sale.invoices
+    >>> config.user = account_user.id
+    >>> invoice_line, = invoice.lines
+    >>> invoice_line.stock_moves == []
+    True
+    >>> invoice_line.quantity = 5.0
+    >>> invoice.click('post')
+    >>> pay = Wizard('account.invoice.pay', [invoice])
+    >>> pay.form.journal = cash_journal
+    >>> pay.execute('choice')
+    >>> invoice.reload()
+    >>> invoice.state
+    u'paid'
+    >>> config.user = sale_user.id
+    >>> invoice_line.reload()
+    >>> stock_move, = invoice_line.stock_moves
+    >>> stock_move.quantity
+    5.0
+    >>> stock_move.state
+    u'draft'