Method testSockName

Lib/test/test_socket.py:1524–1551

(self)

    # XXX The following don't test module-level functionality...

    def testSockName(self):
        # Testing getsockname()
        sock = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
        self.addCleanup(sock.close)

        # Since find_unused_port() is inherently subject to race conditions, we
        # call it a couple times if necessary.
        for i in itertools.count():
            port = socket_helper.find_unused_port()
            try:
                sock.bind(("0.0.0.0", port))
            except OSError as e:
                if e.errno != errno.EADDRINUSE or i == 5:
                    raise
            else:
                break

        name = sock.getsockname()
        # XXX(nnorwitz): http://tinyurl.com/os5jz seems to indicate
        # it reasonable to get the host's addr in addition to 0.0.0.0.
        # At least for eCos.  This is required for the S/390 to pass.
        try:
            my_ip_addr = socket.gethostbyname(socket.gethostname())
        except OSError:
            # Probably name lookup wasn't set up right; skip this test
            self.skipTest('name lookup failure')
        self.assertIn(name[0], ("0.0.0.0", my_ip_addr), '%s invalid' % name[0])
        self.assertEqual(name[1], port)

    def testGetSockOpt(self):
        # Testing getsockopt()