add experimental support for mixed mode in vitest-pool-workers

[dario-piotrowicz]

Fixes https://jira.cfdata.org/browse/DEVX-1856

This PR adds support for mixed mode in vitest-pool-workers it also introduces a public utility to start or update mixed mode sessions.

---

• Tests
  • TODO (before merge)
  • Tests included
  • Tests not necessary because:
• Wrangler / Vite E2E Tests CI Job required? (Use "e2e" label or ask maintainer to run separately)
  • I don't know
  • Required
  • Not required because:
• Public documentation
  • TODO (before merge)
  • Cloudflare docs PR(s):
  • Documentation not necessary because: experimental feature change
• Wrangler V3 Backport
  • TODO (before merge)
  • Wrangler PR:
  • Not necessary because: not a wrangler v3 feature

[changeset-bot]

🦋 Changeset detected

Latest commit: 756ed2e

The changes in this PR will be included in the next version bump.

This PR includes changesets to release 2 packages

Name	Type
@cloudflare/vitest-pool-workers	Patch
wrangler	Patch

Not sure what this means? Click here to learn what changesets are.

Click here if you're a maintainer who wants to add another changeset to this PR

[github-actions]

Failed to automatically backport this PR's changes to Wrangler v3. Please manually create a PR targeting the v3-maintenance branch with your changes. Thank you for helping us keep Wrangler v3 supported!

Depending on your changes, running git rebase --onto v3-maintenance main dario/DEVX-1856/mixed-mode-vitest might be a good starting point.

[github-actions]

A Wrangler prerelease is available for testing. You can install this latest build in your project with:

npm install --save-dev https://prerelease-registry.devprod.cloudflare.dev/workers-sdk/runs/15471686408/npm-package-wrangler-9473

Prereleases for other packages:

cloudflare-workers-bindings-extension:

wget https://prerelease-registry.devprod.cloudflare.dev/workers-sdk/runs/15471686408/npm-package-cloudflare-workers-bindings-extension-9473 -O ./cloudflare-workers-bindings-extension.0.0.0-v5da3e1d3a.vsix && code --install-extension ./cloudflare-workers-bindings-extension.0.0.0-v5da3e1d3a.vsix

create-cloudflare:

npx https://prerelease-registry.devprod.cloudflare.dev/workers-sdk/runs/15471686408/npm-package-create-cloudflare-9473 --no-auto-update

@cloudflare/kv-asset-handler:

npm install https://prerelease-registry.devprod.cloudflare.dev/workers-sdk/runs/15471686408/npm-package-cloudflare-kv-asset-handler-9473

miniflare:

npm install https://prerelease-registry.devprod.cloudflare.dev/workers-sdk/runs/15471686408/npm-package-miniflare-9473

@cloudflare/pages-shared:

npm install https://prerelease-registry.devprod.cloudflare.dev/workers-sdk/runs/15471686408/npm-package-cloudflare-pages-shared-9473

@cloudflare/unenv-preset:

npm install https://prerelease-registry.devprod.cloudflare.dev/workers-sdk/runs/15471686408/npm-package-cloudflare-unenv-preset-9473

@cloudflare/vite-plugin:

npm install https://prerelease-registry.devprod.cloudflare.dev/workers-sdk/runs/15471686408/npm-package-cloudflare-vite-plugin-9473

@cloudflare/vitest-pool-workers:

npm install https://prerelease-registry.devprod.cloudflare.dev/workers-sdk/runs/15471686408/npm-package-cloudflare-vitest-pool-workers-9473

@cloudflare/workers-editor-shared:

npm install https://prerelease-registry.devprod.cloudflare.dev/workers-sdk/runs/15471686408/npm-package-cloudflare-workers-editor-shared-9473

@cloudflare/workers-shared:

npm install https://prerelease-registry.devprod.cloudflare.dev/workers-sdk/runs/15471686408/npm-package-cloudflare-workers-shared-9473

@cloudflare/workflows-shared:

npm install https://prerelease-registry.devprod.cloudflare.dev/workers-sdk/runs/15471686408/npm-package-cloudflare-workflows-shared-9473

Note that these links will no longer work once the GitHub Actions artifact expires.

[pkg-pr-new]

create-cloudflare

npm i https://pkg.pr.new/create-cloudflare@9473

@cloudflare/kv-asset-handler

npm i https://pkg.pr.new/@cloudflare/kv-asset-handler@9473

miniflare

npm i https://pkg.pr.new/miniflare@9473

@cloudflare/pages-shared

npm i https://pkg.pr.new/@cloudflare/pages-shared@9473

@cloudflare/unenv-preset

npm i https://pkg.pr.new/@cloudflare/unenv-preset@9473

@cloudflare/vite-plugin

npm i https://pkg.pr.new/@cloudflare/vite-plugin@9473

@cloudflare/vitest-pool-workers

npm i https://pkg.pr.new/@cloudflare/vitest-pool-workers@9473

@cloudflare/workers-editor-shared

npm i https://pkg.pr.new/@cloudflare/workers-editor-shared@9473

wrangler

npm i https://pkg.pr.new/wrangler@9473

commit: 756ed2e