[Frontend] Server Testing - test infra for pipeline ui node server

[Bobgy]

Pipeline UI node server has 0 test coverage at the moment. It prevents adding new features into the node server with confidence. In order to test more nuanced features like added in #2081.

We should add

• (lower effort, lower confidence) some basic jest tests that just test the node server
• (higher effort, higher confidence) some e2e tests that test the node server with a real cluster

Starting with jest tests would be the best

Work Items:

• (p0) test infra and unit tests, thanks @eterna2 [Frontend] unit tests for node server #2745
• (p0) set up coverage reporting Coverage reporting for frontend server #2877
• (p1 0.2w) Finish k8s-helper unit tests:

  pipelines/frontend/server/app.test.ts

  Line 354 in 2ec2fd2

  // TODO: refractor k8s helper module so that api that interact with k8s can be

  fixed together in [UI] Show step pod yaml and events in RunDetails page #3304
• (p2 0.6w) Unit tests for low coverage files according to coverage report.

/priority p0
/area testing

[Ark-kun]

Can you clarify the e2e tests item? I think we run some frontend tests as part of 2e2 tests.

[Bobgy]

I saw there are some UI e2e tests, but I don't think they cover all usages of the node server.
I need to look deeper for a list of things it didn't cover.

[Bobgy]

Thanks to @eterna2, #2745 will be the first step.

[Bobgy]

All p0 issues resolved

[Bobgy]

/priority p1

[Bobgy]

The last p2 item of Unit tests for low coverage files according to coverage report can be improved in a separate issue. This one can be considered done.

/close

[k8s-ci-robot]

@Bobgy: Closing this issue.

In response to this:

The last p2 item of Unit tests for low coverage files according to coverage report can be improved in a separate issue. This one can be considered done.

/close

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