Page 493 - Nodejs 교과서 개정2판

jest.mock ݫࢲ٘ী ݽఊೡ ݽٕ੄ ҃۽ܳ ੋࣻ۽ ֍Ҋ Ӓ ݽٕਸ ࠛ۞২פ׮ jest.mockীࢲ ݽఊೡ ݫࢲ٘ U

ser.findOne ী mockReturnValueۄח ݫࢲ٘ܳ ֍णפ׮ ੉ ݫࢲ٘۽ о૞ ߈ജчਸ ૑੿ೡ ࣻ ੓णפ׮

୐ ߣ૩ పझ౟ীࢲח NPDL3FUVSO7BMVF ݫࢲ٘ܳ ా೧ User.findOne੉ { addFollowing() } ё୓ܳ ߈ജೞ

ب۾ ೮णפ׮ ࢎਊ੗ܳ ଺ইࢲ ౹۽੔ਸ ୶оೞח ࢚ടਸ పझ౟ೞӝ ਤ೧ࢲੑפ׮ ೐۽޷झܳ ߈ജ೧ঠ ׮
਺ী await user.addFollowing ݫࢲ٘ܳ ഐ୹ೡ ࣻ ੓णפ׮ ف ߣ૩ పझ౟ীࢲח nullਸ ߈ജೞৈ ࢎਊ੗ܳ

଺૑ ޅೠ ࢚ടਸ పझ౟೤פ׮ ࣁ ߣ૩ పझ౟ীࢲח Promise.reject۽ ী۞о ߊࢤೞب۾ ೮णפ׮ %# ো
Ѿী ী۞о ߊࢤೠ ࢚ടਸ ݽఊೠ Ѫੑפ׮

੉ઁ పझ౟ܳ ాҗ೤פ׮

콘솔

$ npm test
> nodebird@0.0.1 test C:\Users\zerocho\nodebird
> jest

PASS routes/middlewares.test.js
PASS controllers/user.test.js
● Console

console.error controllers/user.js:13
테스트용 에러

Test Suites: 2 passed, 2 total
Tests: 6 passed, 6 total
Snapshots: 0 total
Time: 3.562s
Ran all test suites.

पઁ ؘ੉ఠ߬੉झী ౹۽੔ਸ ١۾ೞח Ѫ੉ ইפ޲۽ ઁ؀۽ పझ౟غח Ѫੋ૑ ѣ੿ೡ ࣻب ੓णפ׮ ੉୊
ۢ పझ౟ܳ ೧ب पઁ ࢲ࠺झ੄ पઁ ؘ੉ఠ߬੉झীࢲח ޙઁо ߊࢤೡ ࣻ ੓णפ׮ Ӓۡ ٸח ਬ׫ పझ౟

݈Ҋ ׮ܲ ઙܨ੄ పझ౟ܳ ૓೯೧ঠ ೤פ׮ ੉ܳ ੼Ѩೞӝ ਤ೧ ా೤ పझ౟ա दझమ పझ౟ܳ ೞҌ ೤פ׮

׮ܲ ޷ٜਝযٜী ؀೧ࢲب খীࢲ ߓ਍ ؀۽ ݽఊਸ ഝਊೞৈ ਬ׫ పझ౟ܳ ੘ࢿ೧ࠁࣁਃ ׮਺ ੺ীࢲח ਬ

׫ పझ౟о ঴݃ա ૓೯غ঻ח૑ ഛੋೞח పझ౟ ழߡܻ૑ܳ ࢓ಝࠁѷणפ׮