ca7d6c94e3
The deployment failed at "Running TypeScript ..." with:
vitest.config.ts(7,13): error TS2540: Cannot assign to 'NODE_ENV'
because it is a read-only property.
Next's next/types/global declares NODE_ENV on ProcessEnv as `readonly`.
tsconfig includes **/*.ts, so next build type-checks vitest.config.ts and
the direct assignment from 34017d8 took every deploy down with it.
Object.assign has no source-to-target assignability constraint, so it
compiles while still writing NODE_ENV through process.env's setter —
React still gets its development build, which is what exposes `act`.
Verified: tsc --noEmit clean, 3839 tests pass, npm run build succeeds.
32 lines
1.3 KiB
TypeScript
32 lines
1.3 KiB
TypeScript
import { defineConfig } from "vitest/config";
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import path from "node:path";
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// React only exposes `act` in its development build, so a shell with
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// NODE_ENV=production would break every component test. Vitest only sets
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// NODE_ENV when it is unset, so force it.
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//
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// Next's `next/types/global` declares NODE_ENV on ProcessEnv as `readonly`,
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// so a plain `process.env.NODE_ENV = "test"` fails the type check that
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// `next build` runs over this file (tsconfig includes **/*.ts) and takes
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// the whole deployment down. Object.assign has no source-to-target
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// assignability constraint, so it compiles while still writing the value
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// through process.env's setter at runtime.
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Object.assign(process.env, { NODE_ENV: "test" });
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export default defineConfig({
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resolve: {
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alias: [
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{ find: "@", replacement: path.resolve(__dirname, "./src") },
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// The `server-only` package ships inside Next.js' compiled dependencies
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// and cannot be resolved by Vitest; point it at an empty stand-in.
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{ find: /^server-only$/, replacement: path.resolve(__dirname, "./src/test-support/server-only.ts") },
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],
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},
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test: {
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environment: "node",
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include: ["src/**/*.test.{ts,tsx}"],
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// The PDF/PNG split test shells out to poppler; it takes a few seconds on
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// its own and times out when the whole suite runs in parallel.
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testTimeout: 15000,
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},
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});
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