Последние новости AI & ML от Tech News
Я продуктовый дизайнер, больше шести лет делаю SaaS. Программировать умею, но фулстек-разработчиком себя не назову. Уже несколько месяцев я в одиноч…
Modern JavaScript testing focuses heavily on testing public outputs and user behavior rather than chasing line-by-line or branch-by-branch coverage.…
You mock the clock, advance it, and assert. The assertion runs before the code under test has finished. async function poll () { await new Promise (…
You wrote a mock. The test still hits the real module. Nothing in the error message points at why. import { fetchUser } from ' ./api ' import { vi ,…
At some point when writing AI agent code, testing comes to a halt. Without an ANTHROPIC_API_KEY , the code won't even run. With one, every test run…
Last month I overhauled the test pipeline for a side project and switched from Jest to Vitest. The reason was straightforward: maintaining Jest in a…
In a 2024 benchmark of 10,000+ line TypeScript codebases, Vitest outperformed ESLint ’s native rule execution by 47% in cold-start lint speed when c…