Blog Posts tagged #testing

04 [EmDash] A Vitest Regression Guard for publicHoistPattern and ssr.optimizeDeps.include on Cloudflare Workers A Vitest test that verifies every package in ssr.optimizeDeps.include is both hoisted to node_modules/ and resolvable — so a missing publicHoistPattern entry surfaces as a named, actionable test failure instead of exports is not defined deep inside a workerd stack trace. May 25, 2026 · 2 min // src/lib/ssr-deps.test.ts import { existsSync } from "node:fs"; import { createRequire } from "node:module"; import { join } from "node:path"; import { describe, expect, it } from "vitest"; // src/lib/ssr-deps.test.ts import { existsSync } from "node:fs"; import { createRequire } from "node:module"; import { join } from "node:path"; import { describe, expect, it } from "vitest";