javascript - Jest run async function ONCE before all tests -


i want use jest server unit testing (instead of mocah+chai). there way can run async function before tests start (init purposes) once , not every test file? , if there's way of running after tests done?

if execute jest tests npm can run node command or executable before executing other command

"scripts": {     "test": "node setup.js && jest"   }

so can run command

$ npm t

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