testing/test_xspec.py::TestMakegateway::test_popen_nice FAILED

• Bitbucket: https://bitbucket.org/hpk42/execnet/issue/54
• Originally reported by: @danstender
• Originally created at: 2017-03-19T18:20:53.165

Another test failure from Debian packaging. This one belongs to the same class as #53 (randomly appearing).

testing/test_xspec.py::TestMakegateway::test_popen_nice FAILED
=================================== FAILURES ===================================
_______________________ TestMakegateway.test_popen_nice ________________________

self = <test_xspec.TestMakegateway object at 0x7f57cbff97b8>
makegateway = <bound method Group.makegateway of <Group ['gw1']>>

    @pytest.mark.skipif("not hasattr(os, 'nice')")
    def test_popen_nice(self, makegateway):
        gw = makegateway("popen")

        def getnice(channel):
            import os
            if hasattr(os, 'nice'):
                channel.send(os.nice(0))
            else:
                channel.send(None)
        remotenice = gw.remote_exec(getnice).receive()
        gw.exit()
        if remotenice is not None:
            gw = makegateway("popen//nice=5")
            remotenice2 = gw.remote_exec(getnice).receive()
>           assert remotenice2 == remotenice + 5
E           assert 0 == (0 + 5)

testing/test_xspec.py:136: AssertionError

This one comes up when testing on Python 3.5. Build log: https://people.debian.org/~sanvila/build-logs/execnet/execnet_1.4.1-3_amd64-20170207T152032Z.
Thanks for hints,
DS

Commencez par testing/test_xspec.py::TestMakegateway::test_popen_nice et le chemin makegateway("popen//nice=5") indiqué dans l’échec. Reproduisez le test avec Python 3.5 ou dans l’environnement Debian, examinez comment l’option nice de popen est gérée et vérifiez que le test réussit de manière fiable sans casser le comportement existant de popen.