`test_clinic` fails with the `--forever` argument

[Eclips4]

Bug report

Bug description:

./python -m test -q test_clinic --forever
Using random seed: 2016588083
0:00:00 load avg: 16.10 Run tests sequentially
test test_clinic failed -- Traceback (most recent call last):
 File "/home/eclips4/CLionProjects/cpython/Lib/test/test_clinic.py", line 2675, in test_cli_converters
 self.assertTrue(out.endswith(finale), out)
 ~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^^^^^^^^
AssertionError: False is not true :
Legacy converters:
 B C D L O S U Y Z Z#
 b c d f h i l p s s# s* u u# w* y y# y* z z# z*

Converters:
 bool(accept={<class 'object'>})
 byte(bitwise=False)
 char()
 Custom()
 defining_class(type=None)
 double()
 fildes()
 float()
 int(accept={<class 'int'>}, type=None)
 long()
 long_long()
 object(converter=None, type=None, subclass_of=None)
 Py_buffer(accept={<class 'clinic.buffer'>})
 Py_complex()
 Py_ssize_t(accept={<class 'int'>})
 Py_UNICODE(accept={<class 'str'>}, zeroes=False)
 PyByteArrayObject()
 PyBytesObject()
 self(type=None)
 short()
 size_t()
 slice_index(accept={<class 'NoneType'>, <class 'int'>})
 str(accept={<class 'str'>}, encoding=None, zeroes=False)
 unicode()
 unsigned_char(bitwise=False)
 unsigned_int(bitwise=False)
 unsigned_long(bitwise=False)
 unsigned_long_long(bitwise=False)
 unsigned_short(bitwise=False)

Return converters:
 bool()
 Custom()
 double()
 float()
 int()
 long()
 object()
 Py_ssize_t()
 size_t()
 unsigned_int()
 unsigned_long()

All converters also accept (c_default=None, py_default=None, annotation=None).
All return converters also accept (py_default=None).



== Tests result: FAILURE ==

1 test failed:
 test_clinic

Total duration: 586 ms
Total tests: run=290 failures=1
Total test files: run=2 failed=1
Result: FAILURE

CPython versions tested on:

CPython main branch

Operating systems tested on:

Linux

Linked PRs

• gh-117347: Fix test_clinic side effects #117363
• [3.12] gh-117347: Fix test_clinic side effects (#117363) #117365
• [3.11] [3.12] gh-117347: Fix test_clinic side effects (GH-117363) (GH-117365) #117366

[Eclips4]

Probably related to 7aa89bc

[erlend-aasland]

cc. @vstinner

[erlend-aasland]

Probably related to 7aa89bc

I can confirm that reverting 7aa89bc resolves this issue.

[erlend-aasland]

The test is failing because the custom converter from test_no_access_to_members_in_converter_init lingers after the first run.

[erlend-aasland]

Actually, the custom converter is added in three different tests:

• test_badly_formed_return_annotation
• test_no_access_to_members_in_converter_init
• test_external

I'm unable to trigger the problem if I disable all these tests using the -i test runner option.

[erlend-aasland]

Well, perhaps the test is too strict; perhaps we should loosen it even more.

[vstinner]

I wrote PR gh-117363 to fix side effects of previous tests.