Martin Panter added the comment:
See Issue 1186900 about the NNTP client raising EOFError.
As for the “cannot read from timed out object” errors (also reported in Issue
19613), I think the test classes are bad. The test logs don’t seem to be
available, but I reckon that the previous test to the failing test would have
been skipped due to the transient Internet handler. The test classes are
essentially coded like this:
class NetworkedNNTP_SSLTests(TestCase):
@classmethod
def setUpClass(cls):
with support.transient_internet(cls.NNTP_HOST):
cls.server = NNTP_SSL(cls.NNTP_HOST, timeout=TIMEOUT)
def test_that_triggered_the_failure(self):
with support.transient_internet(self.NNTP_HOST):
... # Suppose this timed out and the test was skipped
def test_capabilities(self):
# Now this is reusing the existing connection, left in a broken state by
# the previous test
self.server.capabilities()
Either the server connection should be freshly made for each individual test
case (not once per class), or all the test cases grouped by setUpClass() should
be skipped if the transient Internet handler kicks in. I’m not sure if it is
practical to do the second option with the standard unittest module. Perhaps
the method wrapping stage could add some extra checks to see if the test should
be skipped.
----------
nosy: +vadmium
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