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import weakref
import pytest
from netaddr import INET_ATON, INET_PTON, IPAddress, IPNetwork, IPRange, NOHOST
def test_ip_classes_are_weak_referencable():
weakref.ref(IPAddress('10.0.0.1'))
weakref.ref(IPNetwork('10.0.0.1/8'))
weakref.ref(IPRange('10.0.0.1', '10.0.0.10'))
@pytest.mark.parametrize('flags', [NOHOST, INET_ATON | INET_PTON])
def test_invalid_ipaddress_flags_are_rejected(flags):
with pytest.raises(ValueError):
IPAddress('1.2.3.4', flags=flags)
def test_invalid_ipnetwork_flags_are_rejected():
with pytest.raises(ValueError):
IPNetwork('1.2.0.0/16', flags=INET_PTON)
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