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import socket
import rfc6555
try:
from unittest import mock
except (ImportError, AttributeError):
import mock
def test_ipv6_available():
assert rfc6555._detect_ipv6()
def test_ipv6_not_available_socket_has_ipv6_false():
old_has_ipv6 = socket.has_ipv6
socket.has_ipv6 = False
assert not rfc6555._detect_ipv6()
socket.has_ipv6 = old_has_ipv6
def test_ipv6_not_available_socket_exception_on_init():
with mock.patch('socket.socket') as fake_socket:
fake_socket.side_effect = OSError
assert not rfc6555._detect_ipv6()
def test_ipv6_not_available_socket_exception_on_bind():
sock = mock.Mock()
with mock.patch('socket.socket') as fake_socket:
fake_socket.return_value = sock
sock.bind.side_effect = OSError
assert not rfc6555._detect_ipv6()
def test_ipv6_not_available_socket_AF_INET6_not_defined():
old_AF_INET6 = socket.AF_INET6
try:
delattr(socket, 'AF_INET6')
assert not rfc6555._detect_ipv6()
finally:
socket.AF_INET6 = old_AF_INET6
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