[ARROW-15999] [Python] Turn deadlines off for the test using hypothesis

• Type: Improvement
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 8.0.0
• Component/s: Python
• Labels: pull-request-available
• External issue URL: https://github.com/apache/arrow/issues/31422
• Assignee: Alenka Frim
• Reporter: Alenka Frim
• Created: 22/Mar/22 09:51
• Updated: 11/Jan/23 11:41
• Resolved: 22/Mar/22 15:39

Description

Turn deadlines off for test test_python_datetime_with_pytz_timezone in test_pandas-py that is using hypothesis and is failing in nightly builds:

=================================== FAILURES ===================================
_____ TestConvertDateTimeLikeTypes.test_python_datetime_with_pytz_timezone _____

self = <pyarrow.tests.test_pandas.TestConvertDateTimeLikeTypes object at 0x7f504239d730>

    @h.given(st.none() | tzst.timezones())
>   def test_python_datetime_with_pytz_timezone(self, tz):

opt/conda/envs/arrow/lib/python3.8/site-packages/pyarrow/tests/test_pandas.py:1048: 
_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ 

self = <hypothesis.core.StateForActualGivenExecution object at 0x7f503f91c320>
message = "Hypothesis test_python_datetime_with_pytz_timezone(self=<pyarrow.tests.test_pandas.TestConvertDateTimeLikeTypes at 0x...la' LMT-1 day, 19:36:00 STD>) produces unreliable results: Falsified on the first call but did not on a subsequent one"

    def __flaky(self, message):
        if len(self.falsifying_examples) <= 1:
>           raise Flaky(message)
E           hypothesis.errors.Flaky: Hypothesis test_python_datetime_with_pytz_timezone(self=<pyarrow.tests.test_pandas.TestConvertDateTimeLikeTypes at 0x7f504239d730>, tz=<DstTzInfo 'America/Anguilla' LMT-1 day, 19:36:00 STD>) produces unreliable results: Falsified on the first call but did not on a subsequent one

opt/conda/envs/arrow/lib/python3.8/site-packages/hypothesis/core.py:886: Flaky
---------------------------------- Hypothesis ----------------------------------
Falsifying example: test_python_datetime_with_pytz_timezone(
    tz=<DstTzInfo 'America/Anguilla' LMT-1 day, 19:36:00 STD>,
    self=<pyarrow.tests.test_pandas.TestConvertDateTimeLikeTypes at 0x7f504239d730>,
)
Unreliable test timings! On an initial run, this test took 559.16ms, which exceeded the deadline of 200.00ms, but on a subsequent run it took 1.93 ms, which did not. If you expect this sort of variability in your test timings, consider turning deadlines off for this test by setting deadline=None.

Issue Links

• links to: GitHub Pull Request #12688