export default class Reporter { /** * @param {string[]} args - a output string * @returns {undefined} */ report(...args) { process.stdout.write(`${args.join(' ')}\n`); } } 例えば上記のように、引数をそのまま標準出力へ印字するconsole.logライクなメソッドのテストを書きたい場合、このままテストを書こうとすると、テスト中の画面に表示されてしまいます。 import Reporter from '../src'; import assert from 'power-assert'; describe('Reporter', () => { describe('report', () => { it('should be
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