call edit when creating a new Invoice Line, as it is done in the GUI.

git-svn-id: https://svn.erp5.org/repos/public/erp5/trunk@4061 20353a03-c40f-0410-a6d1-a30d3c3de9de

product/ERP5/tests/testAccountingRules.py

@@ -623,10 +623,13 @@ class TestAccountingRules(ERP5TypeTestCase):
     
     invoice_line = invoice.newContent(
       id = 'invoice_line_%s'%(int(random.random()*1000)),
+      portal_type = self.sale_invoice_line_portal_type)
+
+    invoice_line.edit(
       resource = product_notebook.getRelativeUrl(),
       quantity = 10,
-      price = 10,
-      portal_type = self.sale_invoice_line_portal_type)
+      price = 10
+    )
     
     self.assertEqual(invoice_line.getTotalPrice(), 100)