Actualización de las pruebas del modulo

purchase.py

@@ -1,10 +1,10 @@
 # This file is part of Tryton.  The COPYRIGHT file at the top level of
 # this repository contains the full copyright notices and license terms.
-from trytond.pool import Pool, PoolMeta
-from trytond.model import ModelView, ModelSQL, fields
+from trytond.pool import PoolMeta
+from trytond.model import fields
 from trytond.pyson import Eval
+from trytond.model.exceptions import ValidationError
 
-from trytond.exceptions import UserError
 
 class Purchase(metaclass=PoolMeta):
     'Purchase Analytic Operation'
@@ -12,20 +12,25 @@ class Purchase(metaclass=PoolMeta):
 
     _states = {
         'readonly': Eval('state') != 'draft',
-        }
+    }
+
+    account_analytic = fields.Many2One(
+        'analytic_account.account', 'Analytic Account', required=True,
+        domain=[('type', '=', 'normal')],
+        states=_states)
+
 
-    account_analytic = fields.Many2One('analytic_account.account', 'Analytic Account', required=True,
-                                       domain=[('type', '=', 'normal')],
-                                       states=_states)
 class PurchaseLine(metaclass=PoolMeta):
     'Purchase Line Analytic Operation'
-    __name__ =  'purchase.line'
+    __name__ = 'purchase.line'
 
-    @fields.depends('product', 'unit', 'purchase',
+    @fields.depends(
+        'product', 'unit', 'purchase',
         '_parent_purchase.party', '_parent_purchase.invoice_party',
         '_parent_purchase.account_analytic', 'product_supplier',
-        'analytic_accounts', methods=['compute_taxes', 'compute_unit_price',
-                                     '_get_product_supplier_pattern'])
+        'analytic_accounts',
+        methods=['compute_taxes', 'compute_unit_price',
+                 '_get_product_supplier_pattern'])
     def on_change_product(self):
         if not self.product:
             return
@@ -43,7 +48,7 @@ class PurchaseLine(metaclass=PoolMeta):
             self.unit = self.product.purchase_uom
 
         product_suppliers = list(self.product.product_suppliers_used(
-                **self._get_product_supplier_pattern()))
+            **self._get_product_supplier_pattern()))
         if len(product_suppliers) == 1:
             self.product_supplier, = product_suppliers
         elif (self.product_supplier
@@ -57,7 +62,8 @@ class PurchaseLine(metaclass=PoolMeta):
 
         self.analytic_accounts = tuple()
         try:
-            self.analytic_accounts += ({'root': self.purchase.account_analytic.root,
-                                        'account': self.purchase.account_analytic},) 
-        except:
-            pass
+            self.analytic_accounts += (
+                {'root': self.purchase.account_analytic.root,
+                 'account': self.purchase.account_analytic},)
+        except Exception as e:
+            raise ValidationError(f"Se produjo un error: {e}")