Improve by=<non-ASCII> test to be more robust
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Assessment
- Difficulty
- 3/5
- Estimated time
- 1-2 days
- Newbie friendliness
- 35/100
- Issue type
- Refactor
- Clarity
- Mostly clear
- Activity status
- Stale
- Tech stack
- r
- Domain
- operating-systems, testing-qa
Research direction
Locate the existing non-ASCII by= test and review the context in #6559 and PR #6567. Replace or adjust the example so it runs on FreeBSD and verifies non-ASCII by= behavior there; done means the test no longer fails to run on that system.
Written by the indexing model from the issue text.
Description
Hmm, thanks. It still leaves us with the `else` branch here on FreeBSD where this is unanticipated / the behavior of `DT[,.N, by=año]` goes untested there. But let's start with un-breaking the test.
Originally posted by @MichaelChirico in https://github.com/Rdatatable/data.table/pull/6567#discussion_r1797156053
As reported in #6559, the test will not run on FreeBSD. We should come up with an example that will test non-ASCII by= on such systems.
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