Add failing test for repeating multi-argument options

[seanfisk]

Hi @henryiii, I still wasn't able to get #128 working. But I've finally had some time to work on this, so here is a failing test that showcases what I understand to be the proper success and failure behaviors. The success test passes but the ValidationError one does not.

Let me know what you think and thank you for working on this issue!

[henryiii]

Added a missing app.reset() in your test, and corrected the logic to catch mismatch in typesize and result vector. We'll see if that works!

[codecov]

Codecov Report

Merging #140 into master will not change coverage.
The diff coverage is 100%.

@@          Coverage Diff          @@
##           master   #140   +/-   ##
=====================================
  Coverage     100%   100%           
=====================================
  Files          12     12           
  Lines        1682   1686    +4     
=====================================
+ Hits         1682   1686    +4

Impacted Files	Coverage Δ
include/CLI/Option.hpp	100% <100%> (ø)	⬆️

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[seanfisk]

@henryiii Thanks much! That is working as intended now — you're the best!

Sorry, I know I had the app.reset() at one point; don't know how it got removed…

Do you mind if I add a few more tests for related behavior in the future?

[henryiii]

I don't think I'd ever refuse more tests! 👍

I might be able to drop the need for app.reset(), parse should reset the app before running, I believe.

Edit: #141.