Not supposed to have a lot of usage, it's made just for fun.
npm i expecto-patronum
import{expecto}from'expecto-patronum'/** * For now works with sync stuff only */expecto('All tests should PASS',patronum=>{/** * For now that's all predicates here listed, lol */patronum(0).beFalsy()patronum(1).beEqual(1)patronum(2).beSame(2)patronum(3).beTruthy()patronum({a: 'a',b: 'b'}).beEquallyStringified({a: 'a',b: 'b'})},/** * Callback gets { fail: number; success: number; } * So it could be just console.log as a callback */tests=>console.log(tests))expecto('All tests should FAIL',patronum=>{patronum(1).beFalsy()patronum(2).beEqual(3)patronum([]).beSame([])patronum(0).beTruthy()patronum({a: 'a',b: 'b'}).beEquallyStringified({b: 'b',a: 'a'})},console.log)