Update dependency @cloudflare/vitest-pool-workers to v0.13.0

[renovate]

This PR contains the following updates:

Package	Change	Age	Confidence
@cloudflare/vitest-pool-workers (source)	0.12.21 → 0.13.0

---

Release Notes

cloudflare/workers-sdk (@​cloudflare/vitest-pool-workers)

v0.13.0

Compare Source

Minor Changes

• #​11632 a6ddbdb Thanks @​penalosa! - Support Vitest 4 in @cloudflare/vitest-pool-workers.

  This a breaking change to the @cloudflare/vitest-pool-workers integration in order to support Vitest v4. Along with supporting Vitest v4 (and dropping support for Vitest v2 and v3), we've made a number of changes that may require changes to your tests. Our aim has been to improve stability & the foundations of @cloudflare/vitest-pool-workers as we move towards a v1 release of the package.

  We've made a codemod to make the migration easier, which will make the required changes to your config file:

  npx jscodeshift -t node_modules/@​cloudflare/vitest-pool-workers/dist/codemods/vitest-v3-to-v4.mjs vitest.config.ts

  Or, without installing the package first:

  npx jscodeshift -t https://unpkg.com/@​cloudflare/vitest-pool-workers/dist/codemods/vitest-v3-to-v4.mjs --parser=ts vitest.config.ts

  • Config API: defineWorkersProject and defineWorkersConfig from @cloudflare/vitest-pool-workers/config have been replaced with a cloudflareTest() Vite plugin exported from @cloudflare/vitest-pool-workers. The test.poolOptions.workers options are now passed directly to cloudflareTest():

    Before:

    import { defineWorkersProject } from "@​cloudflare/vitest-pool-workers/config";
    
    export default defineWorkersProject({
    	test: {
    		poolOptions: {
    			workers: {
    				wrangler: { configPath: "./wrangler.jsonc" },
    			},
    		},
    	},
    });

    After:

    import { cloudflareTest } from "@​cloudflare/vitest-pool-workers";
    import { defineConfig } from "vitest/config";
    
    export default defineConfig({
    	plugins: [
    		cloudflareTest({
    			wrangler: { configPath: "./wrangler.jsonc" },
    		}),
    	],
    });

  • isolatedStorage & singleWorker: These have been removed in favour of a simpler isolation model that more closely matches Vitest. Storage isolation is now on a per test file basis, and you can make your test files share the same storage by using the Vitest flags --max-workers=1 --no-isolate

  • import { env, SELF } from "cloudflare:test": These have been removed in favour of import { env, exports } from "cloudflare:workers". exports.default.fetch() has the same behaviour as SELF.fetch(), except that it doesn't expose Assets. To test your assets, write an integration test using startDevWorker()

  • import { fetchMock } from "cloudflare:test": This has been removed. Instead, mock globalThis.fetch or use ecosystem libraries like MSW (recommended).

  • Vitest peer dependency: @cloudflare/vitest-pool-workers now requires vitest@^4.1.0.

Patch Changes

• Updated dependencies [f7de0fd, ff543e3, 8e89e85, e63539d, 8d1e130, 6ee18e1, ecc7f79, 1dda1c8, 4bb61b9]:
  • miniflare@​4.20260312.0
  • wrangler@​4.73.0

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[renovate]

⚠️ Artifact update problem

Renovate failed to update an artifact related to this branch. You probably do not want to merge this PR as-is.

♻ Renovate will retry this branch, including artifacts, only when one of the following happens:

• any of the package files in this branch needs updating, or
• the branch becomes conflicted, or
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The artifact failure details are included below:

File name: package-lock.json

npm warn Unknown env config "store". This will stop working in the next major version of npm.
npm error code ERESOLVE
npm error ERESOLVE unable to resolve dependency tree
npm error
npm error While resolving: api-worker@undefined
npm error Found: vitest@3.2.4
npm error node_modules/vitest
npm error   dev vitest@"3.2.4" from the root project
npm error   peer vitest@"3.2.4" from @vitest/browser@3.2.4
npm error   node_modules/@vitest/browser
npm error     peerOptional @vitest/browser@"3.2.4" from vitest@3.2.4
npm error   1 more (@vitest/ui)
npm error
npm error Could not resolve dependency:
npm error peer vitest@"^4.1.0" from @cloudflare/vitest-pool-workers@0.13.0
npm error node_modules/@cloudflare/vitest-pool-workers
npm error   dev @cloudflare/vitest-pool-workers@"0.13.0" from the root project
npm error
npm error Fix the upstream dependency conflict, or retry
npm error this command with --force or --legacy-peer-deps
npm error to accept an incorrect (and potentially broken) dependency resolution.
npm error
npm error
npm error For a full report see:
npm error /runner/cache/others/npm/_logs/2026-03-17T12_59_57_526Z-eresolve-report.txt
npm error A complete log of this run can be found in: /runner/cache/others/npm/_logs/2026-03-17T12_59_57_526Z-debug-0.log

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Status	Name	Latest Commit	Updated (UTC)
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