Files
snippets/vite-layers/test/public.test.ts
T

75 lines
3.0 KiB
TypeScript

import { fileURLToPath } from 'node:url'
import { mkdtempSync, readFileSync, readdirSync, rmSync } from 'node:fs'
import { dirname, join, resolve } from 'node:path'
import { tmpdir } from 'node:os'
import { afterEach, beforeEach, describe, expect, it } from 'vitest'
import { publicLayersPlugin } from '../src/public'
const here = dirname(fileURLToPath(import.meta.url))
const fixture = (p: string) => resolve(here, 'fixtures', p)
const callConfig = (p: { config?: unknown }) => (p.config as () => unknown)()
type ResolvedishConfig = { root: string; build: { outDir: string; copyPublicDir?: boolean } }
/** List every file written under `dir` as `posixRelativePath → contents`. */
function snapshot(dir: string): Record<string, string> {
const out: Record<string, string> = {}
const walk = (d: string) => {
for (const name of readdirSync(d, { withFileTypes: true })) {
const abs = join(d, name.name)
if (name.isDirectory()) walk(abs)
else out[resolve(abs).slice(resolve(dir).length + 1).replace(/\\/g, '/')] = readFileSync(abs, 'utf8')
}
}
walk(dir)
return out
}
/** Drive the build-time hooks (configResolved → writeBundle) and return what landed on disk. */
function runBuild(
p: { configResolved?: unknown; writeBundle?: unknown },
outDir: string,
{ copyPublicDir, writeDir }: { copyPublicDir?: boolean; writeDir?: string } = {},
): Record<string, string> {
const cfg: ResolvedishConfig = { root: '/', build: { outDir, copyPublicDir } }
;(p.configResolved as (c: ResolvedishConfig) => void)(cfg)
;(p.writeBundle as (this: unknown, o: { dir?: string }) => void).call({}, { dir: writeDir ?? outDir })
return snapshot(outDir)
}
describe('publicLayersPlugin', () => {
const high = fixture('public/high/public')
const low = fixture('public/low/public')
let outDir: string
beforeEach(() => {
outDir = mkdtempSync(join(tmpdir(), 'vite-layers-public-'))
})
afterEach(() => {
rmSync(outDir, { recursive: true, force: true })
})
it('disables Vite publicDir when layers have public/, otherwise no-op', () => {
expect(callConfig(publicLayersPlugin([high, low]))).toEqual({ publicDir: false })
expect(callConfig(publicLayersPlugin([fixture('public/none/public')]))).toBeUndefined()
})
it('copies assets first-match-wins (higher overrides, lower fills gaps, nested ok)', () => {
const written = runBuild(publicLayersPlugin([high, low]), outDir)
expect(written['logo.svg']).toBe('HIGH_LOGO') // overridden by the higher layer
expect(written['shared.txt']).toBe('LOW_SHARED') // inherited from the lower layer
expect(written['img/icon.svg']).toBe('LOW_ICON') // nested, from the lower layer
})
it('skips the copy when Vite opts out (copyPublicDir: false)', () => {
const written = runBuild(publicLayersPlugin([high, low]), outDir, { copyPublicDir: false })
expect(written).toEqual({})
})
it('only copies for the output targeting the main outDir', () => {
const written = runBuild(publicLayersPlugin([high, low]), outDir, { writeDir: join(outDir, 'server') })
expect(written).toEqual({})
})
})