Test test_wrong_cert() runs a server that rejects the client's certificate,
so ECONNRESET is reasonable in addition to SSLError. On the other hand, the
other three tests don't even need to run a server because they are just
testing the parsing of invalid certificate files.
This should fix intermittent failures on Windows where ECONNRESET was not
being caught.
Testing for a non-existing certificate file is already done in test_errors().
The wrongcert.pem test was originally testing behaviour with a mismatched
certificate.
This is instead of svn.python.org, whose certificate recently expired, and
whose new certificate uses a different root certificate.
The certificate used at the pythontest server was modifed to set the "basic
constraints" CA flag. This flag seems to be required for test_get_ca_certs_
capath() to work.
Added the new self-signed certificate to capath with the following commands:
cp Lib/test/{selfsigned_pythontestdotnet.pem,capath/}
c_rehash -v Lib/test/capath/
c_rehash -v -old Lib/test/capath/
# Note the generated file names
cp Lib/test/capath/{selfsigned_pythontestdotnet.pem,0e4015b9.0}
mv Lib/test/capath/{selfsigned_pythontestdotnet.pem,ce7b8643.0}
When attempting to connect to port 444 on the new server, the resulting error
code is EHOSTUNREACH on Linux, and ETIMEDOUT on Windows.