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python:tests: Tell dns.resolver to not read /etc/resolv.conf

We explicitly set the nameserver in the next line. Also the file
/etc/resolv.conf might not exist on the system (e.g in Fedora mockbuild).

BUG: https://bugzilla.samba.org/show_bug.cgi?id=15308

Signed-off-by: Andreas Schneider <asn@samba.org>
Reviewed-by: Douglas Bagnall <douglas.bagnall@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
This commit is contained in:
Andreas Schneider 2023-02-08 12:21:10 +01:00 committed by Andrew Bartlett
parent 804fb07259
commit c4dba61e36

View File

@ -30,7 +30,9 @@ class NetAdsDnsTests(BlackboxTestCase):
def setUp(self):
super(NetAdsDnsTests, self).setUp()
nameserver = os.environ["DC_SERVER_IP"]
self.resolver = dns.resolver.Resolver()
# filename=None will disable reading /etc/resolv.conf. The file might
# not exist e.g. on build or CI systems.
self.resolver = dns.resolver.Resolver(filename=None)
self.resolver.nameservers = [nameserver]
def parse_output(self, output):