🐛 BUG: vitest integration not working with assets

[dstr89]

Which Cloudflare product(s) does this pertain to?

Miniflare

What version(s) of the tool(s) are you using?

3.60.3 [wrangler], 4.20241216.0 [worker-types], 0.5.2 [vitest-pool-workers]]

What version of Node are you using?

16.20.2

What operating system and version are you using?

Mac Sonoma 14.16.1

Describe the Bug

Observed behavior

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

Expected behavior

I noticed that the error goes away if I empty my ASSETS folder. However, then I cannot write an appropriate test. Expected behavior would be for ASSETS to work and not getting a Miniflare error.

Steps to reproduce

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",
    "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"
  }
}

Here. is my wrangler.toml:

#:schema node_modules/wrangler/config-schema.json
name = "my-on-page-app-worker"
main = "src/index.ts"
compatibility_date = "2024-10-22"
compatibility_flags = ["nodejs_compat"]

# Expose the On Page App JS file in /dist as asset
[assets]
directory = "./dist"
binding = "ASSETS"

# Add a build step to run Vite build and generate the On Page App JS file in /dist
[build]
command = "npm run build"

The error happens only when running tests, the Worker is working fine on Cloudflare.

Please advise,
Daniel

Please provide a link to a minimal reproduction

No response

Please provide any relevant error logs

No response

[emily-shen]

Hiya, if you're intending to use these assets with the vitest integration, you need wrangler 3.80.1 or later - let me know if you still have issues though!

[dstr89]

Hi @emily-shen,
thanks for the hint. I updated "wrangler" to "^3.96.0", but still getting the same error:

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

I found this example: https://github.com/cloudflare/workers-sdk/blob/main/fixtures/vitest-pool-workers-examples/workers-assets/test/assets.test.ts but I cannot figure out why it's not working.

BR,
Daniel

[dstr89]

The issue is easily reproducible on a newly generated worker project. Here is an example: https://github.com/dstr89/cloudflare-vitest-assets-issue/. Steps to reproduce the issue are described in the README.

[Achatzibaum281]

.