2025/08/08
That node.js bundles a jest-like test runner since 1.20: https://nodejs.org/api/test.html#test-runner.
import {test, describe} from "node:test"
describe("behavior", () => {
test("case", t => {})
})
node --test
H/T https://kashw1n.com/blog/nodejs-2025/#3-built-in-testing-professional-testing-without-external-dependencies for pointing this out.