Update dependency @cloudflare/vitest-pool-workers to v0.20.1

[renovate]

This PR contains the following updates:

Package	Change	Age	Confidence
@cloudflare/vitest-pool-workers (source)	0.18.6 → 0.20.1

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Release Notes

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

v0.20.1

Compare Source

Patch Changes

• Updated dependencies [cc63aae, f92d1fc, a249591, f92d1fc, f92d1fc, cec9d88, e0bbf55]:
  • wrangler@​4.118.0

v0.20.0

Compare Source

Minor Changes

• #​14586 5a56dda Thanks @​emily-shen! - Breaking change: Remove several options from the miniflare override options

  The following options have been removed from the miniflare override options, as they were not intended to be exposed, were not functional, or have been superseded by other options:

  • wrappedBindings
  • cacheWarnUsage
  • fetchMock: you should use outboundService instead
  • containerEngine: containers were not supported in vitest-pool-workers. Consider using createTestHarness() instead if you want to test against actual containers.

  Additionally, cache has been deprecated and renamed to cacheAPI, but cache remains functional.

Patch Changes

• #​14586 5a56dda Thanks @​emily-shen! - Preserve the deprecated Miniflare cache option

  Vitest configurations using cache continue to work after the internal Miniflare v5 upgrade. The option is translated to cacheAPI; new configurations should use cacheAPI directly.

• #​14586 5a56dda Thanks @​emily-shen! - Stop enabling Miniflare's removed unsafeStickyBlobs option

  The pool no longer sets the unsafeStickyBlobs Miniflare option, which has been removed. This option was only needed for the Durable Object isolated storage feature that was dropped in 0.13.0, so there is no change in behaviour.

• Updated dependencies [5a56dda, 5a56dda, 5a56dda, 5a56dda, 5a56dda, 5a56dda, 5a56dda, 5a56dda, 5a56dda, 5a56dda, 5a56dda, 5a56dda, 5a56dda, 5a56dda, 5a56dda, 5a56dda, 5a56dda, 5a56dda, 5a56dda]:

  • miniflare@5.20260730.0-alpha
  • wrangler@​4.117.0

v0.19.1

Compare Source

Patch Changes

• Updated dependencies [01d7020, beec0fb, 48f0c6c, 8049ca4, d7f38c3, 1394867, cc54478, 5c25cfe, b21eac2, bb09f1b, 1f61001, 01d7020, e31ab0f]:
  • miniflare@​4.20260730.0
  • wrangler@​4.116.0

v0.19.0

Compare Source

Minor Changes

• #​14879 e6480e3 Thanks @​dmmulroy! - Add a verbose option to cloudflareTest() and cloudflarePool() configuration

  Set verbose: false to suppress verbose workerd runtime logs, such as caught Durable Object RPC errors. The option defaults to true to preserve existing output.

Patch Changes

• #​14821 edc203e Thanks @​mishushakov! - Ignore workerd's disconnected: peer disconnected without gracefully ending TLS session exception logs

  When tests make real fetch() calls to external TLS endpoints, servers and load balancers routinely close idle keepalive connections without sending a TLS close_notify. No request fails — the connection is idle — but workerd logs a kj/compat/tls.c++ exception with a full stack trace each time, flooding otherwise green test runs. This is the TLS sibling of the disconnected: ... messages already in the ignore list, so filter it the same way.

• Updated dependencies [773ead4, 773ead4, 09b8a44, 4dfb96e, 1035f74, e426cb9, 3a22ae5, 465c0fb, 465c0fb, e8b3a9d, 552bcfc, b737676, 6e0bf6e]:

  • wrangler@​4.115.0
  • miniflare@​4.20260722.1

v0.18.8

Compare Source

Patch Changes

• #​14793 7b3fea6 Thanks @​trafgals! - Prevent worker disposal errors from failing otherwise successful test runs

  Errors raised while disposing test Workers are now logged for diagnostics rather than overriding the test result. Set NODE_DEBUG=vitest-pool-workers to view these errors.

• Updated dependencies [246ce92, c38a2c3, 8416b33, c079ba3, 4683ff8, 95b026e, 02232f3, c4bacec, f8a8c2c, 3203b5d]:

  • wrangler@​4.114.0
  • miniflare@​4.20260722.0

v0.18.7

Compare Source

Patch Changes

• #​14713 de34449 Thanks @​allocsys! - Fix a non-ASCII path failure during the Miniflare WebSocket handshake: the MF-Vitest-Worker-Data header embedded the raw process.cwd() value, which threw a Latin-1/ASCII header encoding error when the workspace path contained non-ASCII characters (e.g. CJK characters) on Windows. The value is now percent-encoded on write and decoded on read, matching the fix applied to the module fallback redirect response.

• #​14713 de34449 Thanks @​allocsys! - Fix a runtime start-up failure ("No such module "cloudflare:test-internal"") when the project workspace path contains non-ASCII characters (e.g. CJK characters) on Windows. The module fallback service's redirect response set the target file path directly as an HTTP Location header value, but headers are restricted to the Latin-1/ASCII byte range, so any non-ASCII byte in the path caused header construction to throw. Such paths are now percent-encoded (and tagged with a sentinel prefix) before being used as a header value, and decoded again only for the values we encoded, so the round-trip is unambiguous and a workspace path containing a literal % is left untouched instead of being mis-decoded.

• #​14739 5eac99e Thanks @​Ankcorn! - Support testing Streaming Tail Workers in Vitest Pool Workers.

• #​14763 538e867 Thanks @​gianghungtien! - Treat webSocketMessage(), webSocketClose() and webSocketError() as optional Durable Object handlers

  The pool wraps each Durable Object class and installs a prototype method for every default handler before user code is loaded, so workerd always sees a handler and always dispatches. When the wrapped class didn't actually define one, the wrapper threw <ClassName> exported by <path> does not define a `webSocketClose()` method, even though deployed Workers silently ignore these events for classes that omit them. A hibernatable Durable Object defining only webSocketMessage() would log an uncaught TypeError on every close.

  These three handlers now no-op when absent, matching deployed behaviour. alarm() is unchanged and still reports a missing handler, since workerd rejects setAlarm() up front on a class without one.

• Updated dependencies [42af66d, a0a091b, f03b108, deae171, 0df3d43, d83a476, 4e92e32, d1d6945, 4815711, a0c8bb1, a50f73a, 2b390d7, c82d96b, 34430b3, f75ae5d]:

  • miniflare@​4.20260721.0
  • wrangler@​4.113.0

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