pytest-cov fails when running from the context of a mounted filesystem in Azure Machine Learning. This may relate to the lack of support to the CIFS filesystem reported by @adamjstewart here.
INTERNALERROR> Traceback (most recent call last):
INTERNALERROR> File "/mnt/batch/tasks/shared/LS_root/mounts/clusters/some_compute_name/code/Users/some_user/labs-thoughttrace_sample-prioritization/.venv/lib/python3.6/site-packages/_pytest/main.py", line 191, in wrap_session
INTERNALERROR> session.exitstatus = doit(config, session) or 0
INTERNALERROR> File "/mnt/batch/tasks/shared/LS_root/mounts/clusters/some_compute_name/code/Users/some_user/labs-thoughttrace_sample-prioritization/.venv/lib/python3.6/site-packages/_pytest/main.py", line 247, in _main
INTERNALERROR> config.hook.pytest_runtestloop(session=session)
INTERNALERROR> File "/mnt/batch/tasks/shared/LS_root/mounts/clusters/some_compute_name/code/Users/some_user/labs-thoughttrace_sample-prioritization/.venv/lib/python3.6/site-packages/pluggy/hooks.py", line 286, in __call__
INTERNALERROR> return self._hookexec(self, self.get_hookimpls(), kwargs)
INTERNALERROR> File "/mnt/batch/tasks/shared/LS_root/mounts/clusters/some_compute_name/code/Users/some_user/labs-thoughttrace_sample-prioritization/.venv/lib/python3.6/site-packages/pluggy/manager.py", line 93, in _hookexec
INTERNALERROR> return self._inner_hookexec(hook, methods, kwargs)
INTERNALERROR> File "/mnt/batch/tasks/shared/LS_root/mounts/clusters/some_compute_name/code/Users/some_user/labs-thoughttrace_sample-prioritization/.venv/lib/python3.6/site-packages/pluggy/manager.py", line 87, in <lambda>
INTERNALERROR> firstresult=hook.spec.opts.get("firstresult") if hook.spec else False,
INTERNALERROR> File "/mnt/batch/tasks/shared/LS_root/mounts/clusters/some_compute_name/code/Users/some_user/labs-thoughttrace_sample-prioritization/.venv/lib/python3.6/site-packages/pluggy/callers.py", line 203, in _multicall
INTERNALERROR> gen.send(outcome)
INTERNALERROR> File "/mnt/batch/tasks/shared/LS_root/mounts/clusters/some_compute_name/code/Users/some_user/labs-thoughttrace_sample-prioritization/.venv/lib/python3.6/site-packages/pytest_cov/plugin.py", line 271, in pytest_runtestloop
INTERNALERROR> self.cov_controller.finish()
INTERNALERROR> File "/mnt/batch/tasks/shared/LS_root/mounts/clusters/some_compute_name/code/Users/some_user/labs-thoughttrace_sample-prioritization/.venv/lib/python3.6/site-packages/pytest_cov/engine.py", line 44, in ensure_topdir_wrapper
INTERNALERROR> return meth(self, *args, **kwargs)
INTERNALERROR> File "/mnt/batch/tasks/shared/LS_root/mounts/clusters/some_compute_name/code/Users/some_user/labs-thoughttrace_sample-prioritization/.venv/lib/python3.6/site-packages/pytest_cov/engine.py", line 230, in finish
INTERNALERROR> self.cov.stop()
INTERNALERROR> File "/mnt/batch/tasks/shared/LS_root/mounts/clusters/some_compute_name/code/Users/some_user/labs-thoughttrace_sample-prioritization/.venv/lib/python3.6/site-packages/coverage/control.py", line 680, in save
INTERNALERROR> data = self.get_data()
INTERNALERROR> File "/mnt/batch/tasks/shared/LS_root/mounts/clusters/some_compute_name/code/Users/some_user/labs-thoughttrace_sample-prioritization/.venv/lib/python3.6/site-packages/coverage/control.py", line 749, in get_data
INTERNALERROR> if self._collector and self._collector.flush_data():
INTERNALERROR> File "/mnt/batch/tasks/shared/LS_root/mounts/clusters/some_compute_name/code/Users/some_user/labs-thoughttrace_sample-prioritization/.venv/lib/python3.6/site-packages/coverage/collector.py", line 473, in flush_data
INTERNALERROR> self.covdata.add_lines(self.mapped_file_dict(self.data))
INTERNALERROR> File "/mnt/batch/tasks/shared/LS_root/mounts/clusters/some_compute_name/code/Users/some_user/labs-thoughttrace_sample-prioritization/.venv/lib/python3.6/site-packages/coverage/sqldata.py", line 236, in _wrapped
INTERNALERROR> return method(self, *args, **kwargs)
INTERNALERROR> File "/mnt/batch/tasks/shared/LS_root/mounts/clusters/some_compute_name/code/Users/some_user/labs-thoughttrace_sample-prioritization/.venv/lib/python3.6/site-packages/coverage/sqldata.py", line 463, in add_lines
INTERNALERROR> self._choose_lines_or_arcs(lines=True)
INTERNALERROR> File "/mnt/batch/tasks/shared/LS_root/mounts/clusters/some_compute_name/code/Users/some_user/labs-thoughttrace_sample-prioritization/.venv/lib/python3.6/site-packages/coverage/sqldata.py", line 522, in _choose_lines_or_arcs
INTERNALERROR> with self._connect() as con:
INTERNALERROR> File "/mnt/batch/tasks/shared/LS_root/mounts/clusters/some_compute_name/code/Users/some_user/labs-thoughttrace_sample-prioritization/.venv/lib/python3.6/site-packages/coverage/sqldata.py", line 318, in _connect
INTERNALERROR> self._create_db()
INTERNALERROR> File "/mnt/batch/tasks/shared/LS_root/mounts/clusters/some_compute_name/code/Users/some_user/labs-thoughttrace_sample-prioritization/.venv/lib/python3.6/site-packages/coverage/sqldata.py", line 268, in _create_db
INTERNALERROR> db.executescript(SCHEMA)
INTERNALERROR> File "/mnt/batch/tasks/shared/LS_root/mounts/clusters/some_compute_name/code/Users/some_user/labs-thoughttrace_sample-prioritization/.venv/lib/python3.6/site-packages/coverage/sqldata.py", line 1160, in executescript
INTERNALERROR> self.con.executescript(script)
INTERNALERROR> sqlite3.OperationalError: database is locked
Reproducer
Run pytest --cov=. on a network-mounted filesystem in Azure ML.
This is not the correct repo for this issue. The right place is coverage. Will create an issue when I have documented a more straightforward way to reproduce it.
Summary
pytest-cov
fails when running from the context of a mounted filesystem in Azure Machine Learning. This may relate to the lack of support to the CIFS filesystem reported by @adamjstewart here.Expected vs actual result
Command:
Expected:![image](https://github.com/pytest-dev/pytest-cov/assets/61638546/95743b73-99a0-4bdc-a6ba-05ec9462dbf4)
Actual result:
Reproducer
Run
pytest --cov=.
on a network-mounted filesystem in Azure ML.Versions
Config
pytest.ini
:Code
Should fail with any test code, eg: