def METHOD_NAME(self):
    comp = self.backend._get_component(self.record, "process")
    with mock.patch.object(
        type(self.wiz_model), "order_file_change"
    ) as md_onchange:
        wiz = comp._setup_wizard()
        self.assertEqual(wiz._name, self.wiz_model._name)
        self.assertEqual(wiz.env.context["random_key"], "custom")
        self.assertEqual(
            base64.b64decode(wiz.order_file), b"<fake><order></order></fake>"
        )
        self.assertEqual(wiz.order_filename, self.record.exchange_filename)
        self.assertEqual(wiz.price_source, "pricelist")
        md_onchange.assert_called()