[FIX] test_invoice_refund

The test checks on empty bank account but with Odoo commit d5688e6ca0 (diff-f3712147f4b25231caa371bd83265dbe) the company bank account gets defaulted when not specified

account_payment_partner/README.rst

@@ -111,6 +111,9 @@ Contributors
 
   * Pedro M. Baeza <pedro.baeza@tecnativa.com>
   * Carlos Dauden <carlos.dauden@tecnativa.com>
+* `DynApps <https://www.dynapps.be>`_:
+
+  * Raf Ven <raf.ven@dynapps.be>
 
 Maintainers
 ~~~~~~~~~~~

account_payment_partner/readme/CONTRIBUTORS.rst

@@ -9,3 +9,6 @@
 
   * Pedro M. Baeza <pedro.baeza@tecnativa.com>
   * Carlos Dauden <carlos.dauden@tecnativa.com>
+* `DynApps <https://www.dynapps.be>`_:
+
+  * Raf Ven <raf.ven@dynapps.be>

account_payment_partner/static/description/index.html

@@ -456,6 +456,10 @@ If you spotted it first, help us smashing it by providing a detailed and welcome
 <li>Carlos Dauden &lt;<a class="reference external" href="mailto:carlos.dauden&#64;tecnativa.com">carlos.dauden&#64;tecnativa.com</a>&gt;</li>
 </ul>
 </li>
+<li><a class="reference external" href="https://www.dynapps.be">DynApps</a>:<ul>
+<li>Raf Ven &lt;<a class="reference external" href="mailto:raf.ven&#64;dynapps.be">raf.ven&#64;dynapps.be</a>&gt;</li>
+</ul>
+</li>
 </ul>
 </div>
 <div class="section" id="maintainers">

account_payment_partner/tests/test_account_payment_partner.py

@@ -307,7 +307,8 @@ class TestAccountPaymentPartner(common.SavepointCase):
         self.assertEquals(invoice_refund.payment_mode_id,
                           invoice.payment_mode_id)
         self.assertEquals(invoice_refund.partner_bank_id,
-                          invoice.partner_bank_id)
+                          self.env.ref(
+                              'account_payment_mode.main_company_iban'))
 
     def test_partner(self):
         self.customer.write({