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Re:How a Jenkins Job Broke our Jenkins UI by smw on Thursday June 03, 2021 @09:21PM (#27389416)
It doesn't parse tests. It doesn't track test success/failure/runtime. Because it doesn't parse tests, it can't show you the output from only the failing tests. The UI is horrid. It's so far inferior to almost all it's competition, I have no idea why anyone would use it.
Re:How a Jenkins Job Broke our Jenkins UI by sakisv on Friday June 04, 2021 @12:19AM (#27390504)
Can you explain a bit more what do you mean by "it doesn't parse tests"?
Re:How a Jenkins Job Broke our Jenkins UI by smw on Friday June 04, 2021 @01:41AM (#27390960)
Concourse explicitly wants to not know anything about the outputs of your jobs. Most of the other ci products will have _some_ method (integration with common test runners, markers in output) to figure out how many tests you've run and display them as a collapsible outline, or something similar.

Because the ci system is aware of your tests, and perhaps a filename/test description, it can keep stats on them over time.

This is an ancient version of teamcity [0], but it shows how it knows how many tests were run, how many passed, and that there's one "new" failure in this run vs previous runs.

This lets it tell you which tests are slow, which are flaky, all sorts of history of those wrt to state of the associated repo, etc.

Not having these sorts of things once you have them is like flying blind.

[0] https://i.imgur.com/ywB7u11.png