test_socket.py 文件源码

def testGetaddrinfo(self):
        try:
            socket.getaddrinfo('localhost', 80)
        except socket.gaierror as err:
            if err.errno == socket.EAI_SERVICE:
                # see http://bugs.python.org/issue1282647
                self.skipTest("buggy libc version")
            raise
        # len of every sequence is supposed to be == 5
        for info in socket.getaddrinfo(HOST, None):
            self.assertEqual(len(info), 5)
        # host can be a domain name, a string representation of an
        # IPv4/v6 address or None
        socket.getaddrinfo('localhost', 80)
        socket.getaddrinfo('127.0.0.1', 80)
        socket.getaddrinfo(None, 80)
        if SUPPORTS_IPV6:
            socket.getaddrinfo('::1', 80)
        # port can be a string service name such as "http", a numeric
        # port number or None
        socket.getaddrinfo(HOST, "http")
        socket.getaddrinfo(HOST, 80)
        socket.getaddrinfo(HOST, None)
        # test family and socktype filters
        infos = socket.getaddrinfo(HOST, None, socket.AF_INET)
        for family, _, _, _, _ in infos:
            self.assertEqual(family, socket.AF_INET)
        infos = socket.getaddrinfo(HOST, None, 0, socket.SOCK_STREAM)
        for _, socktype, _, _, _ in infos:
            self.assertEqual(socktype, socket.SOCK_STREAM)
        # test proto and flags arguments
        socket.getaddrinfo(HOST, None, 0, 0, socket.SOL_TCP)
        socket.getaddrinfo(HOST, None, 0, 0, 0, socket.AI_PASSIVE)
        # a server willing to support both IPv4 and IPv6 will
        # usually do this
        socket.getaddrinfo(None, 0, socket.AF_UNSPEC, socket.SOCK_STREAM, 0,
                           socket.AI_PASSIVE)
        # test keyword arguments
        a = socket.getaddrinfo(HOST, None)
        b = socket.getaddrinfo(host=HOST, port=None)
        self.assertEqual(a, b)
        a = socket.getaddrinfo(HOST, None, socket.AF_INET)
        b = socket.getaddrinfo(HOST, None, family=socket.AF_INET)
        self.assertEqual(a, b)
        a = socket.getaddrinfo(HOST, None, 0, socket.SOCK_STREAM)
        b = socket.getaddrinfo(HOST, None, type=socket.SOCK_STREAM)
        self.assertEqual(a, b)
        a = socket.getaddrinfo(HOST, None, 0, 0, socket.SOL_TCP)
        b = socket.getaddrinfo(HOST, None, proto=socket.SOL_TCP)
        self.assertEqual(a, b)
        a = socket.getaddrinfo(HOST, None, 0, 0, 0, socket.AI_PASSIVE)
        b = socket.getaddrinfo(HOST, None, flags=socket.AI_PASSIVE)
        self.assertEqual(a, b)
        a = socket.getaddrinfo(None, 0, socket.AF_UNSPEC, socket.SOCK_STREAM, 0,
                               socket.AI_PASSIVE)
        b = socket.getaddrinfo(host=None, port=0, family=socket.AF_UNSPEC,
                               type=socket.SOCK_STREAM, proto=0,
                               flags=socket.AI_PASSIVE)
        self.assertEqual(a, b)
        # Issue #6697.
        self.assertRaises(UnicodeEncodeError, socket.getaddrinfo, 'localhost', '\uD800')