gh-115142: Skip test_capi/test_opt.py if _testinternalcapi is not available

[Eclips4]

• Issue: Meta issue: Mark all CPython-specific tests with a test.support.cpython_only decorator #115142

[miss-islington-app]

Thanks @Eclips4 for the PR, and @encukou for merging it 🌮🎉.. I'm working now to backport this PR to: 3.12.
🐍🍒⛏🤖 I'm not a witch! I'm not a witch!

[miss-islington-app]

Sorry, @Eclips4 and @encukou, I could not cleanly backport this to 3.12 due to a conflict.
Please backport using cherry_picker on command line.

cherry_picker 91d7605ac3c15a185fd67921907cebaf0def1674 3.12

[encukou]

FWIW, test infrastructure changes are backported mainly to make it easier to backport future tests for bugfixes. If there's a conflict already, that reason goes away.
If you're fine with skipping the conflicting backports, feel free to skip them. (I'm not sure if 3.12 is important to your goal :)

[Eclips4]

FWIW, test infrastructure changes are backported mainly to make it easier to backport future tests for bugfixes. If there's a conflict already, that reason goes away. If you're fine with skipping the conflicting backports, feel free to skip them. (I'm not sure if 3.12 is important to your goal :)

Shortly, yes, 3.12 is important for my goal :)
But in this case, test_capi/test_opt does not exist in 3.12, so there's no need in backport.
Thank you Petr for the explanation.

[serhiy-storchaka]

Earlier changes in test_capi were not backported to 3.11, and as the result, all following numerous changes and additions were not backported to 3.11. It is better to backport tests until it is too later.

[Eclips4]

Earlier changes in test_capi were not backported to 3.11, and as the result, all following numerous changes and additions were not backported to 3.11. It is better to backport tests until it is too later.

I'm agree with you, Serhiy.
Sadly, these kinds of changes cannot be backported. test_opt tested _testinternalcapi.set_optimizer/get_optimizer/new_counter_optimizer and other functions that are not backported because they tested parts of the new tier2 implementation.