11cb0ef41Sopenharmony_ci# Writing tests 21cb0ef41Sopenharmony_ci 31cb0ef41Sopenharmony_ciUndici is tuned for a production use case and its default will keep 41cb0ef41Sopenharmony_cia socket open for a few seconds after an HTTP request is completed to 51cb0ef41Sopenharmony_ciremove the overhead of opening up a new socket. These settings that makes 61cb0ef41Sopenharmony_ciUndici shine in production are not a good fit for using Undici in automated 71cb0ef41Sopenharmony_citests, as it will result in longer execution times. 81cb0ef41Sopenharmony_ci 91cb0ef41Sopenharmony_ciThe following are good defaults that will keep the socket open for only 10ms: 101cb0ef41Sopenharmony_ci 111cb0ef41Sopenharmony_ci```js 121cb0ef41Sopenharmony_ciimport { request, setGlobalDispatcher, Agent } from 'undici' 131cb0ef41Sopenharmony_ci 141cb0ef41Sopenharmony_ciconst agent = new Agent({ 151cb0ef41Sopenharmony_ci keepAliveTimeout: 10, // milliseconds 161cb0ef41Sopenharmony_ci keepAliveMaxTimeout: 10 // milliseconds 171cb0ef41Sopenharmony_ci}) 181cb0ef41Sopenharmony_ci 191cb0ef41Sopenharmony_cisetGlobalDispatcher(agent) 201cb0ef41Sopenharmony_ci``` 21