Add more C API tests

[serhiy-storchaka]

• Add tests for PyBytes C API
• Add tests for PyByteArray C API
• Add tests for PyFloat C API
• Add tests for PyComplex C API
• Add tests for PyLong C API
• Add tests for PyNumber C API
• Add tests for PyTuple C API
• Add tests for PyList C API
• Add tests for PyCodec C API
• Add tests for PyFile C API

Linked PRs

• gh-111495: Add tests for PyBytes and PyByteArray C API #111496
• gh-111495: Add tests for PyList C API #111562
• gh-111495: add stub files for C API test modules #111586
• gh-111495: Add tests for PyComplex C API #111591
• [3.12] gh-111495: add stub files for C API test modules (GH-111586) #111592
• gh-111495: Add tests for PyTuple C API #111606
• [3.12] gh-111495: Add tests for PyBytes and PyByteArray C API (GH-111496) #111607
• gh-111495: Add tests for PyFloat C API #111624
• gh-111495: Test C API functions with extreme sizes and indices #111631
• gh-111495: Add PyFile_* CAPI tests #111709
• [3.12] gh-111495: Test C API functions with extreme sizes and indices (GH-111631) #111731
• [3.12] gh-111495: Add tests for PyFloat C API (GH-111624) #111752
• [3.12] gh-111495: Add tests for PyComplex C API (GH-111591) #111753
• [3.12] gh-111495: Add tests for PyList C API (GH-111562) #111861
• gh-111495: Add tests for PyNumber C API #111996
• gh-111495: Add tests for PyTuple C API #118757
• gh-111495: Add more tests on PyEval C APIs #122789
• gh-111495: Add tests on PyTuple C APIs #122833
• gh-111495: Fix refleaks in test_capi.test_eval tests #122851
• gh-111495: Remove test_capi test_rshift_print() #123338
• gh-111495: Add tests for PyCodec_* C API #123343
• [3.13] gh-111495: Add tests for PyTuple C API (GH-118757) #123371
• [3.13] gh-111495: Add tests for PyNumber C API (GH-111996) #123375
• [3.12] gh-111495: Add tests for PyNumber C API (GH-111996) #123376
• [3.12] gh-111495: Add tests for PyTuple C API (GH-118757) #123379
• gh-111495: Add tests for PyFile C API #124915
• gh-111495: improve test coverage of codecs C API #126030
• [3.13] gh-111495: Add more tests on PyEval C APIs (#122789) #128987
• [3.12] gh-111495: Add more tests on PyEval C APIs (#122789) (#128987) #129023
• gh-111495: Add PyFile tests #129449
• [3.13] gh-111495: Add PyFile tests (#129449) #129477
• [3.12] gh-111495: Add PyFile tests (#129449) (#129477) #129501

[skirpichev]

@serhiy-storchaka, initial set of C API tests for PyComplex (only for changed functions) was added in #109647

[serhiy-storchaka]

Yes, there are also some tests for PyLong and PyNumber, and maybe other parts of the C API. But we should test the full C API, or at least document what is not tested. And it is better to group tests by the prefix, so it is clear where to find tests.

[serhiy-storchaka]

If you want to work on adding tests to the part of the C API, say it here to avoid duplicating the work of other people. I finished work on PyBytes and PyByteArray and am not currently working on any of the above.

[skirpichev]

@serhiy-storchaka, I will factor out tests PyComplex_RealAsDouble/ImagAsDouble from #109647 and tests for other functions for PyComplexType. (BTW, in #111496 I don't see actual tests, only interfaces. Tests in my pr were modeled from pack/unpack tests in test_float.py.)

[serhiy-storchaka]

Good catch, @skirpichev. I forgot to add the actual test files.

[rawwar]

@serhiy-storchaka , I would like to contribute tests to PyTuple and PyList C API

[serhiy-storchaka]

@serhiy-storchaka , I would like to contribute tests to PyTuple and PyList C API

Great. Look at existing PySequence tests in Lib/test/test_capi/test_abstract.py. Some PyTuple and PyList tests can be a copy of PySequence tests. Look also at PyDict and PySet tests.