OOoUtils: Followup of 48e2e4fd: Parsed OOo file content is bytes().

bt5/erp5_accounting/TestTemplateItem/portal_components/test.erp5.testAccounting.py

@@ -3394,9 +3394,9 @@ class TestAccountingExport(AccountingTestCase):
         '40 - Payable',
         self.account_module.payable.Account_getFormattedTitle())
     # check that this account name can be found in the content
-    self.assertIn('40 - Payable', content_xml)
+    self.assertIn(b'40 - Payable', content_xml)
     # check that we don't have unknown categories
-    self.assertNotIn('???', content_xml)
+    self.assertNotIn(b'???', content_xml)
 
 
 class TestTransactions(AccountingTestCase):

bt5/erp5_simplified_invoicing/TestTemplateItem/portal_components/test.erp5.testInvoice.py

@@ -640,7 +640,7 @@ class TestInvoice(TestInvoiceMixin):
     parser = OOoParser()
     parser.openFromBytes(odt)
     style_xml = parser.oo_files['styles.xml']
-    self.assertNotIn('<draw:image', style_xml)
+    self.assertNotIn(b'<draw:image', style_xml)
 
   def test_Invoice_viewAsODT_invalid_image(self):
     resource = self.portal.getDefaultModule(