Tests type error when using [assets] in wrangler.toml

[dstr89]

Hello,

After adding the following configuration to expose public assets in my wrangler.toml

[assets]
directory = "./dist"
binding = "ASSETS"

I am getting the following error while running npm run test:

TypeError: Cannot read properties of undefined (reading 'digest')
 ❯ hashPath node_modules/miniflare/dist/src/index.js:7772:62
 ❯ node_modules/miniflare/dist/src/index.js:7707:11
 ❯ walk node_modules/miniflare/dist/src/index.js:7681:3
 ❯ buildAssetManifest node_modules/miniflare/dist/src/index.js:7671:42
 ❯ Object.getServices node_modules/miniflare/dist/src/index.js:7589:56
 ❯ Miniflare2.#assembleConfig node_modules/miniflare/dist/src/index.js:9840:42
 ❯ Miniflare2.#assembleAndUpdateConfig node_modules/miniflare/dist/src/index.js:9940:20
 ❯ Mutex.runWith node_modules/miniflare/dist/src/index.js:3632:16
 ❯ Miniflare2.#waitForReady node_modules/miniflare/dist/src/index.js:10042:5

Here is my package JSON:

{
  "name": "my-on-page-app-worker",
  "version": "0.0.0",
  "private": true,
  "scripts": {
    "build": "vite build",
    "deploy": "wrangler deploy",
    "dev": "wrangler dev",
    "start": "wrangler dev",
    "test": "vitest",
    "cf-typegen": "wrangler types"
  },
  "dependencies": {
    "preact": "^10.22.1"
  },
  "devDependencies": {
    "@cloudflare/vitest-pool-workers": "^0.5.2",
    "@cloudflare/workers-types": "^4.20241216.0",
    "@preact/preset-vite": "^2.9.0",
    "@types/node": "^22.8.1",
    "eslint": "^8.57.1",
    "eslint-config-preact": "^1.5.0",
    "miniflare": "^3.20241205.0",
    "typescript": "^5.5.2",
    "vite": "^5.3.3",
    "vite-plugin-css-injected-by-js": "^3.5.2",
    "vitest": "2.1.8",
    "wrangler": "^3.60.3"
  }
}

I noticed that the error goes away if I empty my ASSETS folder. However, then I cannot write an appropriate test. Please advise.

Daniel

[andyjessop]

@dstr89 thanks for reporting this, and sorry that you're experiencing this problem. I've tried to reproduce this locally, but I don't see the same error that you are seeing. Is there any way you could get us a minimal reproduction to debug?

[dstr89]

Hi @andyjessop, sure, here it is: https://github.com/dstr89/cloudflare-vitest-assets-issue. Steps to reproduce are in the README.