Add test on context of company multivalue target fields

issue10067
review333851026

dunning.py

@@ -107,7 +107,12 @@ class Dunning(ModelSQL, ModelView):
             ], 'State', readonly=True)
     active = fields.Function(fields.Boolean('Active'), 'get_active',
         searcher='search_active')
-    party = fields.Function(fields.Many2One('party.party', 'Party'),
+    party = fields.Function(fields.Many2One(
+            'party.party', 'Party',
+            context={
+                'company': Eval('company', -1),
+                },
+            depends=['company']),
         'get_line_field', searcher='search_line_field')
     amount = fields.Function(fields.Numeric('Amount',
             digits=(16, Eval('currency_digits', 2)),

tests/test_account_dunning.py

@@ -7,8 +7,10 @@ from trytond.tests.test_tryton import ModuleTestCase
 from trytond.tests.test_tryton import doctest_teardown
 from trytond.tests.test_tryton import doctest_checker
 
+from trytond.modules.company.tests import CompanyMultiValueTestMixin
 
-class AccountDunningTestCase(ModuleTestCase):
+
+class AccountDunningTestCase(CompanyMultiValueTestMixin, ModuleTestCase):
     'Test AccountDunning module'
     module = 'account_dunning'