Method assertBadNetmask

Lib/test/test_ipaddress.py:635–638

(addr, netmask)

    def test_netmask_errors(self):
        def assertBadNetmask(addr, netmask):
            msg = "%r is not a valid netmask" % netmask
            with self.assertNetmaskError(re.escape(msg)):
                self.factory("%s/%s" % (addr, netmask))

        assertBadNetmask("1.2.3.4", "")
        assertBadNetmask("1.2.3.4", "-1")