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TST: Enable pytest-xdist #7468

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Dec 2, 2016
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TST: Enable pytest-xdist #7468

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TST: Enable pytest-xdist
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@Kojoley
Kojoley committed Nov 16, 2016
commit cecf4a65af081e5588350cd5749b678e8c08691b
11 changes: 7 additions & 4 deletions .travis.yml
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Expand Up @@ -45,13 +45,10 @@ env:
- NPROC=2
- TEST_ARGS=--no-pep8
- NOSE_ARGS="-j $NPROC"
- PYTEST_ARGS="-ra --timeout=300 --durations=25 --cov-report= --cov=lib" # -n $NPROC
- PYTEST_ARGS="-ra --timeout=300 --durations=25 --cov-report= --cov=lib -n $NPROC"
- PYTHON_ARGS=
- DELETE_FONT_CACHE=
- USE_PYTEST=false
#- PYTHONHASHSEED=0 # Workaround for pytest-xdist flaky colletion order
# # https://github.com/pytest-dev/pytest/issues/920
# # https://github.com/pytest-dev/pytest/issues/1075

matrix:
include:
Expand Down Expand Up @@ -166,6 +163,12 @@ script:
gdb -return-child-result -batch -ex r -ex bt --args python $PYTHON_ARGS tests.py $NOSE_ARGS $TEST_ARGS
fi
else
# Workaround for pytest-xdist flaky colletion order
# https://github.com/pytest-dev/pytest/issues/920
# https://github.com/pytest-dev/pytest/issues/1075
export PYTHONHASHSEED=$(shuf -i 1-4294967295 -n 1)
echo PYTHONHASHSEED=$PYTHONHASHSEED
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Will this affect the determinism tests?

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Aren't the tests that really care about this run in a shell-call with their own seeds set?

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I don't see it set/unset PYTHONHASHSEED, so wouldn't it be inherited?

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Yeah, I think you are right 🐑

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Well, I have find out that xdist collection problem is triggered by test_mathtext.py, but I do not know what exactly, maybe globals() injection magic or something else. I think the best option for us is to rewrite test_mathtext to pytest fixtures and forget about this xdist issue.

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Hmm, that definitely is weird; is there a way to parametrize the fileename passed to the image_comparison decorator?


echo The following args are passed to pytest $PYTEST_ARGS
py.test $PYTEST_ARGS $TEST_ARGS
fi
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