fix: fix 'duplicate-code' for pylint

tests/views/test_master.py

@@ -1371,6 +1371,25 @@ class TestMasterView(WebTestCase):
             self.session.commit()
             self.assertEqual(self.session.query(model.Setting).count(), 7)
 
+    def test_do_thread_body(self):
+        view = self.make_view()
+
+        # nb. so far this is just proving coverage, in case caller
+        # does not specify an error handler
+
+        def func():
+            raise RuntimeError
+
+        # with error handler
+        onerror = MagicMock()
+        view.do_thread_body(func, (), {}, onerror)
+        onerror.assert_called_once_with()
+
+        # without error handler
+        onerror.reset_mock()
+        view.do_thread_body(func, (), {})
+        onerror.assert_not_called()
+
     def test_delete_bulk_thread(self):
         self.pyramid_config.add_route("settings", "/settings/")
         model = self.app.model