Introducing "testing" object

[fabal]

Introducing a testing object available in late bindings, similar to the building object, but indicating a rez-test context.

[linux-foundation-easycla]

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• ✅ login: fabal / name: Fabrice Macagno (110cac2, bdf53a3)

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 58.30%. Comparing base (36e0537) to head (bdf53a3).
Report is 8 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #1740      +/-   ##
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+ Coverage   58.29%   58.30%   +0.01%     
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  Files         126      126              
  Lines       17159    17162       +3     
  Branches     3505     3505              
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+ Hits        10002    10007       +5     
+ Misses       6493     6492       -1     
+ Partials      664      663       -1     

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[JeanChristopheMorinPerso]

Just by looking at this PR, I'm struggling to see if it also applies to early bound functions. The description says that it's only for @late, but we have building in @early.

If the changes inject testing in @early, then the documentation should be adapted as such. If it doesn't then I think we should change the PR so that testing will also be available in @early.

Additionally, I would like to see a test or two.

Thanks!

[fabal]

I think early bound attributes are not relevant to rez-test scenarios because they're flattened upon install, meaning any logic will go away anyway. Unless I'm missing something?

I thought about adding some unit tests but I couldn't find counterparts for building use cases? Unless there aren't any?

[fnaum]

I also think that testing does not make sense in @early, as we early decorated functions are evaluated at build time.
so even if we add the object there it would always be false.

[JeanChristopheMorinPerso]

Oh, yeah, you are right about @early, by bad.

As for the tests, I don't think there is any for building and we also don't have tests for rez-test. So it could be a good occasion to add some rez-tests tests.

[fabal]

Sounds good, we've carved out some time to add a few unit tests.