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Improve an internal ipaddress test, add a comment explaining why treating networks as containers of interfaces rather than addresses would prove confusing

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This commit is contained in:
Nick Coghlan 2012-06-17 16:33:00 +10:00
parent 5b0dac12b8
commit d972265df8
2 changed files with 31 additions and 17 deletions
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27
Lib/test/test_ipaddress.py
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@ -150,16 +150,31 @@ class IpaddrUnitTest(unittest.TestCase):
self.assertEqual(first, last)
self.assertEqual(0, ipaddress._get_prefix_length(2**32, 0, 32))
self.assertEqual(128, ipaddress._count_righthand_zero_bits(0, 128))
base_ip = ipaddress._BaseAddress('127.0.0.1')
try:
base_ip.version
self.fail('_BaseAddress.version didn\'t raise NotImplementedError')
except NotImplementedError:
pass
self.assertEqual("IPv4Network('1.2.3.0/24')", repr(self.ipv4_network))
self.assertEqual('0x1020318', hex(self.ipv4_network))
self.assertRaises(TypeError, self.ipv4_network.__eq__, object())
def testMissingAddressVersion(self):
class Broken(ipaddress._BaseAddress):
pass
broken = Broken('127.0.0.1')
with self.assertRaisesRegex(NotImplementedError, "Broken.*version"):
broken.version
def testMissingNetworkVersion(self):
class Broken(ipaddress._BaseNetwork):
pass
broken = Broken('127.0.0.1')
with self.assertRaisesRegex(NotImplementedError, "Broken.*version"):
broken.version
def testMissingAddressClass(self):
class Broken(ipaddress._BaseNetwork):
pass
broken = Broken('127.0.0.1')
with self.assertRaisesRegex(NotImplementedError, "Broken.*address"):
broken._address_class
def testGetNetwork(self):
self.assertEqual(int(self.ipv4_network.network_address), 16909056)
self.assertEqual(str(self.ipv4_network.network_address), '1.2.3.0')