[SR-9133] JUnit output format doesn't work if --parallel not selected

[alblue]

Previous ID	SR-9133
Radar	None
Original Reporter	@alblue
Type	Bug

Additional Detail from JIRA

Votes	0
Component/s	Package Manager
Labels	Bug, Screened
Assignee	anayini (JIRA)
Priority	Medium

md5: 7a7f61fc246593e1da18eec9acf288a5

Issue Description:

The JUnit output report should be printed regardless of the setting of --parallel.

Running:
swift test --xunit-output=/tmp/results.xml

doesn't generate a file at /tmp/results.xml.

Running:
swift test --xunit-output=/tmp/results.xml --parallel --num-workers=1

does generate a file at /tmp/results.xml

[swift-ci]

Comment by Arjun Nayini (JIRA)

@aciidb0mb3r - I picked up this ticket and started on it. I found that the `TestRunner` and `ParallelTestRunner` are actually separate `final class` types that aren't tied together by anything. I was thinking I could get this done but would want to refactor those types to adhere to a single protocol (refactor them to look alike) and then add in xunit output for the serial one. Currently it looks like the xunit generator class is just explicitly tied to the parallel test runner.

Does this seem like a reasonable approach here? Figured I would ping you since you have the latest commits in that area of the code.

[swift-ci]

Comment by Arjun Nayini (JIRA)

Actually I need to think about this a bit more. Seems like perhaps a SerialTestRunner type might make things a bit more clear with both ParallelTestRunner and SerialTestRunner encapsulating some set of TestRunners.

[Samasaur1]

Any news on this?

[jd-sandk]

It would be nice if this feature/option (--xunit-output) worked as expected, can something please be done to fix this issue.

[michalszelagsonos]

Bump for this issue. We're about to enter 2024, would be great to get something as foundational as this fixed. Note, this kind of report is very important for CI and observability integrations.

[grynspan]

Tracked internally as rdar://129450002. (I'm pretty sure it's tracked with an older radar number too, but I can't find it right now.)

[jakepetroules]

Also, why is the option labeled xunit? It looks like this format is actually based on junit (from Java), while xunit appears to be something that's part of the .NET ecosystem.