Flaky tests

[c12i]

Tryorama tests are currently flaky with the following error being produced for the failed tests

error occurred during test run: HolochainError [ConnectionError]: could not connect to Holochain Conductor API at ws://localh
ost:59225/ - AggregateError
    at WebSocket.<anonymous> (file:///private/tmp/forum/node_modules/.pnpm/@[email protected][email protected]/no
de_modules/@holochain/client/lib/api/client.js:42:24)
    at callListener (/private/tmp/forum/node_modules/.pnpm/[email protected][email protected]/node_modules/ws/lib/event-target.js:290
:14)
    at WebSocket.onError (/private/tmp/forum/node_modules/.pnpm/[email protected][email protected]/node_modules/ws/lib/event-target.j
s:230:9)
    at WebSocket.emit (node:events:518:28)
    at emitErrorAndClose (/private/tmp/forum/node_modules/.pnpm/[email protected][email protected]/node_modules/ws/lib/websocket.js:1
041:13)
    at ClientRequest.<anonymous> (/private/tmp/forum/node_modules/.pnpm/[email protected][email protected]/node_modules/ws/lib/websoc
ket.js:881:5)
    at ClientRequest.emit (node:events:518:28)
    at emitErrorEvent (node:_http_client:101:11)
    at Socket.socketErrorListener (node:_http_client:504:5)
    at Socket.emit (node:events:518:28)

stdout | src/forum/posts/all-posts-entry-hash.test.ts > create a Post and get all posts entry hash
11:27:15 [Tryorama - Local Conductor] info: 2025-01-31T08:27:15.979921Z ERROR holochain::conductor::interface::websocket: cra
tes/holochain/src/conductor/interface/websocket.rs:200: error=Websocket closed: No connection

Versions

• 0.18.0-dev.3
• 0.17.0

How to Reproduce

• Scaffold the forum example app with hc-scaffold (0.4 or 0.5) using

hc scaffold example forum
cd forum

• Enter nix shell and install dependencies

nix develop
npm installl

• Run test suite; you will notice that the tests might fail or pass right away with the error above

npm test

[jost-s]

I have not yet been able to reproduce the issue after running all tests 15 times on a Linux machine, using v0.4.

[jost-s]

Error reproducible on macOS with v0.5.

[jost-s]

No error on Linux under v0.5.

Error also happens under Linux with 0.5

[jost-s]

And error happens under macOS v0.4