tests: fix _updateFunctionalTestResponse on py3

tests/__init__.py

@@ -151,13 +151,13 @@ class ERP5(_ERP5):
     """
     # Parse relevant information to update response information
     try:
-      summary, html_test_result = status_dict['stderr'].split("-"*79)[1:3]
+      summary, html_test_result = status_dict['stderr'].split(b"-"*79)[1:3]
     except ValueError:
       # In case of error when parse the file, preserve the original
       # information. This prevents we have unfinished tests.
       return status_dict
     status_dict['html_test_result'] = html_test_result
-    search = self.FTEST_PASS_FAIL_RE.search(summary)
+    search = self.FTEST_PASS_FAIL_RE.search(summary.decode())
     if search:
       group_dict = search.groupdict()
       status_dict['failure_count'] = int(group_dict['failures']) \