Method testSummarizing

Lib/test/test_ipaddress.py:1945–2016

(self)

                              [ip1, ip2])

    def testSummarizing(self):
        #ip = ipaddress.ip_address
        #ipnet = ipaddress.ip_network
        summarize = ipaddress.summarize_address_range
        ip1 = ipaddress.ip_address('1.1.1.0')
        ip2 = ipaddress.ip_address('1.1.1.255')

        # summarize works only for IPv4 & IPv6
        class IPv7Address(ipaddress.IPv6Address):
            @property
            def version(self):
                return 7
        ip_invalid1 = IPv7Address('::1')
        ip_invalid2 = IPv7Address('::1')
        self.assertRaises(ValueError, list,
                          summarize(ip_invalid1, ip_invalid2))
        # test that a summary over ip4 & ip6 fails
        self.assertRaises(TypeError, list,
                          summarize(ip1, ipaddress.IPv6Address('::1')))
        self.assertRaises(TypeError, list,
                          summarize(ip1, ipaddress.IPv6Address('::1%scope')))
        # test a /24 is summarized properly
        self.assertEqual(list(summarize(ip1, ip2))[0],
                         ipaddress.ip_network('1.1.1.0/24'))
        # test an IPv4 range that isn't on a network byte boundary
        ip2 = ipaddress.ip_address('1.1.1.8')
        self.assertEqual(list(summarize(ip1, ip2)),
                         [ipaddress.ip_network('1.1.1.0/29'),
                          ipaddress.ip_network('1.1.1.8')])
        # all!
        ip1 = ipaddress.IPv4Address(0)
        ip2 = ipaddress.IPv4Address(ipaddress.IPv4Address._ALL_ONES)
        self.assertEqual([ipaddress.IPv4Network('0.0.0.0/0')],
                         list(summarize(ip1, ip2)))

        ip1 = ipaddress.ip_address('1::')
        ip2 = ipaddress.ip_address('1:ffff:ffff:ffff:ffff:ffff:ffff:ffff')
        # test an IPv6 is summarized properly
        self.assertEqual(list(summarize(ip1, ip2))[0],
                         ipaddress.ip_network('1::/16'))
        # test an IPv6 range that isn't on a network byte boundary
        ip2 = ipaddress.ip_address('2::')
        self.assertEqual(list(summarize(ip1, ip2)),
                         [ipaddress.ip_network('1::/16'),
                          ipaddress.ip_network('2::/128')])

        ip1 = ipaddress.ip_address('1::%scope')
        ip2 = ipaddress.ip_address('1:ffff:ffff:ffff:ffff:ffff:ffff:ffff%scope')
        # test an IPv6 is summarized properly
        self.assertEqual(list(summarize(ip1, ip2))[0],
                         ipaddress.ip_network('1::/16'))
        # test an IPv6 range that isn't on a network byte boundary
        ip2 = ipaddress.ip_address('2::%scope')
        self.assertEqual(list(summarize(ip1, ip2)),
                         [ipaddress.ip_network('1::/16'),
                          ipaddress.ip_network('2::/128')])

        # test exception raised when first is greater than last