Some tests fail on different platforms with different versions of MPI (MPICH, OpenMPI, etc.). We should provide a way of labeling these tests so they can be skipped. PyTest provides a @pytest.mark.skipif(...) decorator to tell PyTest to skip tests based on a given condition, and I think we want to figure out how to test for different versions and flavors of MPI.
For example, maybe something like this could be done:
import sys
from mpi4py import MPI
@pytest.mark.skipif(MPI.get_vendor()[0] == 'Open MPI' and
MPI.get_vendor()[1] < (4, 0, 1) and
sys.platform == 'darwin', reason="Doesn't work with OpenMPI 4.0.0 or lower on Macs")
def test_some_thing():
...In this example would skip the test if the tests were being run on an Apple Mac (darwin) running with OpenMPI version 4.0.0 or lower.
...I think.
Some tests fail on different platforms with different versions of MPI (MPICH, OpenMPI, etc.). We should provide a way of labeling these tests so they can be skipped. PyTest provides a
@pytest.mark.skipif(...)decorator to tell PyTest to skip tests based on a given condition, and I think we want to figure out how to test for different versions and flavors of MPI.For example, maybe something like this could be done:
In this example would skip the test if the tests were being run on an Apple Mac (
darwin) running with OpenMPI version 4.0.0 or lower....I think.