test: fix random failing e2e tests

[ppawlowski]

Description

This pull request attempts to stabilise failing E2E tests.

Note: Changes introduced in this pull request were created with strong AI support. Caution is required during the review.

Related Issue(s)

Checklist

• I have read the contribution guidelines
• Suitable unit/system level tests have been added and they pass
• Documentation has been updated
  • Upgrade instructions
  • Configuration details
  • Concepts
• Changes flowforge.yml?
  • Issue/PR raised on FlowFuse/helm to update ConfigMap Template
  • Issue/PR raised on FlowFuse/CloudProject to update values for Staging/Production

Labels

• Includes a DB migration? -> add the area:migration label

[cstns]

It's a very good attempt, i had a feeling it would do the trick because that was my line of thinking on why tests fail. Unfortunately on subsequent test runs the tests keep failing.

i ran them three times locally. The first pass was successful, the second time the config-nodes/base.spec.js test failed and the third more failed:

tests.log

[ppawlowski]

@cstns I've 404 on https://github.com/user-attachments/files/28065011/tests.log . Could you re-upload, please?

[ppawlowski]

@cstns I've 404 on https://github.com/user-attachments/files/28065011/tests.log . Could you re-upload, please?

After a couple more attempts to download it, I finally have it 😕

[ppawlowski]

@cstns the E2E tests pipeline completed successfully 10 times in a row. I think it is safe to review again.

[ppawlowski]

@cstns I've made some adjustments to run tests reliably on a local environment without breaking the CI pipeline. I've managed to run tests locally without issues 5 times in a row and 10 more times in the CI pipeline.
Please review.

[cstns]

the cypress/tests/config-nodes/base.spec.js e2e test is always failing on my end and it doesn't seem to be related to the changes you made. trying to figure out what's happening with the fixture or my setup before green lighting this

[cstns]

Thank you for this!

I also pushed a small fix for the form spec test which was constantly failing locally

[cstns]

why are the e2e tests not running against this PR after my latest push?

[ppawlowski]

why are the e2e tests not running against this PR after my latest push?

I've pushed an irrelevant change to force them to run again.

[cstns]

ok, that's strange. I now see what actions ran but previously I didn't.. I'll blame it on GH's bad day