They are a safety net - it means that you can refactor the code (e.g. split or merge classes or functions) and tests still pass. If you can’t refactor anything without breaking the tests, something is not right.
Сын Алибасова задолжал налоговой более 1,8 миллиона рублей20:37
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Other business leaders have trialed, but then dialed back, four-day work week experiments after seeing the strain of squeezing five days of work into four. Executives at workflow software firm Formstack reported double-digit gains in productivity, flexibility, and happiness during a shortened-week pilot—but they saw a 27% jump in stress as employees worried about cramming their workload into less time.，详情可参考体育直播
Филолог заявил о массовой отмене обращения на «вы» с большой буквы09:36