Unable to run vitest with Workflows using @cloudflare/vitest-pool-workers

[barryroodt]

I'm running into an issue where vitest throws a MiniflareCoreError [ERR_RUNTIME_FAILURE] exception whenever a Workflow is configured on a worker.

A good example can be found via Cloudflare's own official documentation: https://developers.cloudflare.com/workflows/examples/twilio/

This points to the following repository: https://github.com/craigsdennis/twilio-cloudflare-workflow

To reproduce - clone the repository above, npm install then npm run test. Vitest will return the following exception:

[vpw:inf] Starting isolated runtimes for vitest.config.mts...
Worker "workflows:never-gonna"'s binding "USER_WORKFLOW" refers to service "core:user:vitest-pool-workers-runner-" with a named entrypoint "NeverGonnaWorkflow", but "core:user:vitest-pool-workers-runner-" has no such named entrypoint.

This is the exact same exception I get when running vitest in my own worker. As soon as I remove the Workflows config from wrangler.toml the tests run without issue.

Running wrangler dev (in my local setup) with the Workflow configured runs without issue.

Happy to share more information if that would be helpful. Thanks.

[barryroodt]

Closing as issue already reported here: cloudflare/workers-sdk#7414