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Bug#1066731: libcloud: FTBFS: dh_auto_test: error: pybuild --test --test-pytest -i python{version} -p "3.12 3.11" returned exit code 13

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On Wed, Mar 13, 2024 at 03:57:06PM +0100, Lucas Nussbaum wrote:
> > =================================== FAILURES ===================================
> > ___________________ TestUtils.test_init_once_and_debug_mode ____________________
> > 
> > self = <libcloud.test.test_init.TestUtils testMethod=test_init_once_and_debug_mode>
> > 
> >     def test_init_once_and_debug_mode(self):
> >         if have_paramiko:
> >             paramiko_logger = logging.getLogger('paramiko')
> >             paramiko_logger.setLevel(logging.INFO)
> >     
> >         # Debug mode is disabled
> >         _init_once()
> >     
> > >       self.assertIsNone(LoggingConnection.log)
> > E       AssertionError: <codecs.StreamReaderWriter object at 0x7f79cb14b090> is not None
> > 
> > libcloud/test/test_init.py:50: AssertionError

This seems to be an issue with the upstream test suite and is caused by
_init_once() having already been called earlier in the test execution process.
If we run just the failing test on its own, it is successful, but if we run
tests in libcloud/test/compute/test_ssh_client.py first, then it fails because
its setup method calls _init_once().  See below for logs indicating this
behavior.  I'm not sure of the best way to avoid this.  Can we somehow
undo the effect of _init_once()?  Or force these tests to run in a
separate process?  Someone who knows pytest better than me might have
ideas...

Note that this issue is still present in the libcloud 3.8.0 currently in
git.

Successful standalone test execution:

builder@b6dfde9f3b55:/src/libcloud/.pybuild/cpython3_3.11_libcloud/build$ python3 -m pytest libcloud/test/test_init.py -v
==================================================== test session starts ====================================================
platform linux -- Python 3.11.9, pytest-8.1.2, pluggy-1.5.0 -- /usr/bin/python3
cachedir: .pytest_cache
benchmark: 4.0.0 (defaults: timer=time.perf_counter disable_gc=False min_rounds=5 min_time=0.000005 max_time=1.0 calibration_precision=10 warmup=False warmup_iterations=100000)
rootdir: /src/libcloud/.pybuild/cpython3_3.11_libcloud/build
configfile: pyproject.toml
plugins: xdist-3.5.0, benchmark-4.0.0, timeout-2.3.1, requests-mock-1.11.0
collected 5 items                                                                                                           

libcloud/test/test_init.py::TestUtils::test_factory PASSED                                                            [ 20%]
libcloud/test/test_init.py::TestUtils::test_init_once_and_debug_mode PASSED                                           [ 40%]
libcloud/test/test_init.py::TestUtils::test_init_once_correct_chardet_version PASSED                                  [ 60%]
libcloud/test/test_init.py::TestUtils::test_init_once_detects_bad_yum_install_requests PASSED                         [ 80%]
libcloud/test/test_init.py::TestUtils::test_raises_error PASSED                                                       [100%]

=================================================== slowest 10 durations ====================================================
0.01s call     libcloud/test/test_init.py::TestUtils::test_factory

(9 durations < 0.005s hidden.  Use -vv to show these durations.)
===================================================== 5 passed in 0.11s =====================================================

Failing execution following execution of a test from
libcloud/test/compute/test_ssh_client.py:

libcloud/test/compute/test_ssh_client.py::ParamikoSSHClientTests::test_key_material_valid_pem_keys_invalid_header_auto_converbuilder@b6dfde9f3b55:/src/libcloud/.pybuild/cpython3_3.11_libcloud/build$ python3 -m pytest libcloud/test/compute/test_ssh_client.py::ParamikoSSHClientTests::test_password_protected_key_valid_password_provided libcloud/test/test_init.py -v
==================================================== test session starts ====================================================
platform linux -- Python 3.11.9, pytest-8.1.2, pluggy-1.5.0 -- /usr/bin/python3
cachedir: .pytest_cache
benchmark: 4.0.0 (defaults: timer=time.perf_counter disable_gc=False min_rounds=5 min_time=0.000005 max_time=1.0 calibration_precision=10 warmup=False warmup_iterations=100000)
rootdir: /src/libcloud/.pybuild/cpython3_3.11_libcloud/build
configfile: pyproject.toml
plugins: xdist-3.5.0, benchmark-4.0.0, timeout-2.3.1, requests-mock-1.11.0
collected 6 items                                                                                                           

libcloud/test/compute/test_ssh_client.py::ParamikoSSHClientTests::test_password_protected_key_valid_password_provided PASSED [ 16%]
libcloud/test/test_init.py::TestUtils::test_factory PASSED                                                            [ 33%]
libcloud/test/test_init.py::TestUtils::test_init_once_and_debug_mode FAILED                                           [ 50%]
libcloud/test/test_init.py::TestUtils::test_init_once_correct_chardet_version PASSED                                  [ 66%]
libcloud/test/test_init.py::TestUtils::test_init_once_detects_bad_yum_install_requests PASSED                         [ 83%]
libcloud/test/test_init.py::TestUtils::test_raises_error PASSED                                                       [100%]

========================================================= FAILURES ==========================================================
__________________________________________ TestUtils.test_init_once_and_debug_mode __________________________________________

self = <libcloud.test.test_init.TestUtils testMethod=test_init_once_and_debug_mode>

    def test_init_once_and_debug_mode(self):
        if have_paramiko:
            paramiko_logger = logging.getLogger("paramiko")
            paramiko_logger.setLevel(logging.INFO)
    
        # Debug mode is disabled
        _init_once()
    
>       self.assertIsNone(LoggingConnection.log)
E       AssertionError: <codecs.StreamReaderWriter object at 0x7f12de4a3410> is not None

libcloud/test/test_init.py:49: AssertionError
===================================================== warnings summary ======================================================
libcloud/test/compute/test_ssh_client.py::ParamikoSSHClientTests::test_password_protected_key_valid_password_provided
  /src/libcloud/.pybuild/cpython3_3.11_libcloud/build/libcloud/compute/ssh.py:147: DeprecationWarning: You are using deprecated "key" argument which has been replaced with "key_files" argument
    warnings.warn(message, DeprecationWarning)

-- Docs: https://docs.pytest.org/en/stable/how-to/capture-warnings.html
=================================================== slowest 10 durations ====================================================
0.41s call     libcloud/test/compute/test_ssh_client.py::ParamikoSSHClientTests::test_password_protected_key_valid_password_provided

(9 durations < 0.005s hidden.  Use -vv to show these durations.)
================================================== short test summary info ==================================================
FAILED libcloud/test/test_init.py::TestUtils::test_init_once_and_debug_mode - AssertionError: <codecs.StreamReaderWriter object at 0x7f12de4a3410> is not None
========================================== 1 failed, 5 passed, 1 warning in 0.56s ===========================================

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Bug#1066731: libcloud: FTBFS: dh_auto_test: error: pybuild --test --test-pytest -i python{version} -p "3.12 3.11" returned exit code 13 Noah Meyerhans <noahm@debian.org> - 2024-05-18 07:30 +0200

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