Chip 2007 January, February, March & April/Chip-Cover-CD-2007-02.iso/Pakiet bezpieczenstwa/mini Pentoo LiveCD 2006.1/mpentoo-2006.1.iso/livecd.squashfs/usr/lib/python2.4/test/test_socket.pyc

Python Compiled Bytecode | 2005-10-18 | 32KB | 958 lines

# Source Generated with Decompyle++
# File: in.pyc (Python 2.4)

import unittest
from test import test_support
import socket
import select
import time
import thread
import threading
import Queue
import sys
from weakref import proxy
PORT = 50007
HOST = 'localhost'
MSG = 'Michael Gilfix was here\n'

class SocketTCPTest(unittest.TestCase):

    def setUp(self):
        self.serv = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
        self.serv.setsockopt(socket.SOL_SOCKET, socket.SO_REUSEADDR, 1)
        self.serv.bind((HOST, PORT))
        self.serv.listen(1)


    def tearDown(self):
        self.serv.close()
        self.serv = None



class SocketUDPTest(unittest.TestCase):

    def setUp(self):
        self.serv = socket.socket(socket.AF_INET, socket.SOCK_DGRAM)
        self.serv.setsockopt(socket.SOL_SOCKET, socket.SO_REUSEADDR, 1)
        self.serv.bind((HOST, PORT))


    def tearDown(self):
        self.serv.close()
        self.serv = None



class ThreadableTest:
    """Threadable Test class

    The ThreadableTest class makes it easy to create a threaded
    client/server pair from an existing unit test. To create a
    new threaded class from an existing unit test, use multiple
    inheritance:

        class NewClass (OldClass, ThreadableTest):
            pass

    This class defines two new fixture functions with obvious
    purposes for overriding:

        clientSetUp ()
        clientTearDown ()

    Any new test functions within the class must then define
    tests in pairs, where the test name is preceeded with a
    '_' to indicate the client portion of the test. Ex:

        def testFoo(self):
            # Server portion

        def _testFoo(self):
            # Client portion

    Any exceptions raised by the clients during their tests
    are caught and transferred to the main thread to alert
    the testing framework.

    Note, the server setup function cannot call any blocking
    functions that rely on the client thread during setup,
    unless serverExplicityReady() is called just before
    the blocking call (such as in setting up a client/server
    connection and performing the accept() in setUp().
    """

    def __init__(self):
        self._ThreadableTest__setUp = self.setUp
        self._ThreadableTest__tearDown = self.tearDown
        self.setUp = self._setUp
        self.tearDown = self._tearDown


    def serverExplicitReady(self):
        '''This method allows the server to explicitly indicate that
        it wants the client thread to proceed. This is useful if the
        server is about to execute a blocking routine that is
        dependent upon the client thread during its setup routine.'''
        self.server_ready.set()


    def _setUp(self):
        self.server_ready = threading.Event()
        self.client_ready = threading.Event()
        self.done = threading.Event()
        self.queue = Queue.Queue(1)
        methodname = self.id()
        i = methodname.rfind('.')
        methodname = methodname[i + 1:]
        test_method = getattr(self, '_' + methodname)
        self.client_thread = thread.start_new_thread(self.clientRun, (test_method,))
        self._ThreadableTest__setUp()
        if not self.server_ready.isSet():
            self.server_ready.set()

        self.client_ready.wait()


    def _tearDown(self):
        self._ThreadableTest__tearDown()
        self.done.wait()
        if not self.queue.empty():
            msg = self.queue.get()
            self.fail(msg)



    def clientRun(self, test_func):
        self.server_ready.wait()
        self.client_ready.set()
        self.clientSetUp()
        if not callable(test_func):
            raise TypeError, 'test_func must be a callable function'


        try:
            test_func()
        except Exception:
            strerror = None
            self.queue.put(strerror)

        self.clientTearDown()


    def clientSetUp(self):
        raise NotImplementedError, 'clientSetUp must be implemented.'


    def clientTearDown(self):
        self.done.set()
        thread.exit()



class ThreadedTCPSocketTest(SocketTCPTest, ThreadableTest):

    def __init__(self, methodName = 'runTest'):
        SocketTCPTest.__init__(self, methodName = methodName)
        ThreadableTest.__init__(self)


    def clientSetUp(self):
        self.cli = socket.socket(socket.AF_INET, socket.SOCK_STREAM)


    def clientTearDown(self):
        self.cli.close()
        self.cli = None
        ThreadableTest.clientTearDown(self)



class ThreadedUDPSocketTest(SocketUDPTest, ThreadableTest):

    def __init__(self, methodName = 'runTest'):
        SocketUDPTest.__init__(self, methodName = methodName)
        ThreadableTest.__init__(self)


    def clientSetUp(self):
        self.cli = socket.socket(socket.AF_INET, socket.SOCK_DGRAM)



class SocketConnectedTest(ThreadedTCPSocketTest):

    def __init__(self, methodName = 'runTest'):
        ThreadedTCPSocketTest.__init__(self, methodName = methodName)


    def setUp(self):
        ThreadedTCPSocketTest.setUp(self)
        self.serverExplicitReady()
        (conn, addr) = self.serv.accept()
        self.cli_conn = conn


    def tearDown(self):
        self.cli_conn.close()
        self.cli_conn = None
        ThreadedTCPSocketTest.tearDown(self)


    def clientSetUp(self):
        ThreadedTCPSocketTest.clientSetUp(self)
        self.cli.connect((HOST, PORT))
        self.serv_conn = self.cli


    def clientTearDown(self):
        self.serv_conn.close()
        self.serv_conn = None
        ThreadedTCPSocketTest.clientTearDown(self)



class SocketPairTest(unittest.TestCase, ThreadableTest):

    def __init__(self, methodName = 'runTest'):
        unittest.TestCase.__init__(self, methodName = methodName)
        ThreadableTest.__init__(self)


    def setUp(self):
        (self.serv, self.cli) = socket.socketpair()


    def tearDown(self):
        self.serv.close()
        self.serv = None


    def clientSetUp(self):
        pass


    def clientTearDown(self):
        self.cli.close()
        self.cli = None
        ThreadableTest.clientTearDown(self)



class GeneralModuleTests(unittest.TestCase):

    def test_weakref(self):
        s = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
        p = proxy(s)
        self.assertEqual(p.fileno(), s.fileno())
        s.close()
        s = None

        try:
            p.fileno()
        except ReferenceError:
            pass

        self.fail('Socket proxy still exists')


    def testSocketError(self):

        def raise_error(*args, **kwargs):
            raise socket.error


        def raise_herror(*args, **kwargs):
            raise socket.herror


        def raise_gaierror(*args, **kwargs):
            raise socket.gaierror

        self.failUnlessRaises(socket.error, raise_error, 'Error raising socket exception.')
        self.failUnlessRaises(socket.error, raise_herror, 'Error raising socket exception.')
        self.failUnlessRaises(socket.error, raise_gaierror, 'Error raising socket exception.')


    def testCrucialConstants(self):
        socket.AF_INET
        socket.SOCK_STREAM
        socket.SOCK_DGRAM
        socket.SOCK_RAW
        socket.SOCK_RDM
        socket.SOCK_SEQPACKET
        socket.SOL_SOCKET
        socket.SO_REUSEADDR


    def testHostnameRes(self):
        hostname = socket.gethostname()

        try:
            ip = socket.gethostbyname(hostname)
        except socket.error:
            return None

        self.assert_(ip.find('.') >= 0, 'Error resolving host to ip.')

        try:
            (hname, aliases, ipaddrs) = socket.gethostbyaddr(ip)
        except socket.error:
            return None

        all_host_names = [
            hostname,
            hname] + aliases
        fqhn = socket.getfqdn()
        if fqhn not in all_host_names:
            self.fail('Error testing host resolution mechanisms.')



    def testRefCountGetNameInfo(self):
        import sys as sys
        if hasattr(sys, 'getrefcount'):

            try:
                orig = sys.getrefcount(__name__)
                socket.getnameinfo(__name__, 0)
            except SystemError:
                if sys.getrefcount(__name__) != orig:
                    self.fail('socket.getnameinfo loses a reference')

            except:
                sys.getrefcount(__name__) != orig


        None<EXCEPTION MATCH>SystemError


    def testInterpreterCrash(self):

        try:
            socket.getnameinfo(('x', 0, 0, 0), 0)
        except socket.error:
            pass



    def testNtoH(self):
        sizes = {
            socket.htonl: 32,
            socket.ntohl: 32,
            socket.htons: 16,
            socket.ntohs: 16 }
        for func, size in sizes.items():
            mask = (0x1L << size) - 1
            for i in (0, 1, 65535, -65536, 2, 19088743, 1985229328):
                self.assertEqual(i & mask, func(func(i & mask)) & mask)

            swapped = func(mask)
            self.assertEqual(swapped & mask, mask)
            self.assertRaises(OverflowError, func, 0x1L << 34)



    def testGetServBy(self):
        eq = self.assertEqual
        if sys.platform in ('linux2', 'freebsd4', 'freebsd5', 'freebsd6', 'darwin'):
            services = ('daytime', 'qotd', 'domain')
        else:
            services = ('echo', 'daytime', 'domain')
        for service in services:

            try:
                port = socket.getservbyname(service, 'tcp')
            continue
            except socket.error:
                continue


        else:
            raise socket.error
        port2 = socket.getservbyname(service)
        eq(port, port2)

        try:
            udpport = socket.getservbyname(service, 'udp')
        except socket.error:
            None<EXCEPTION MATCH>socket.error
            None<EXCEPTION MATCH>socket.error
            udpport = None
        except:
            None<EXCEPTION MATCH>socket.error

        eq(udpport, port)
        eq(socket.getservbyport(port2), service)
        eq(socket.getservbyport(port, 'tcp'), service)
        if udpport is not None:
            eq(socket.getservbyport(udpport, 'udp'), service)



    def testDefaultTimeout(self):
        self.assertEqual(socket.getdefaulttimeout(), None)
        s = socket.socket()
        self.assertEqual(s.gettimeout(), None)
        s.close()
        socket.setdefaulttimeout(10)
        self.assertEqual(socket.getdefaulttimeout(), 10)
        s = socket.socket()
        self.assertEqual(s.gettimeout(), 10)
        s.close()
        socket.setdefaulttimeout(None)
        self.assertEqual(socket.getdefaulttimeout(), None)
        s = socket.socket()
        self.assertEqual(s.gettimeout(), None)
        s.close()
        self.assertRaises(ValueError, socket.setdefaulttimeout, -1)
        self.assertRaises(TypeError, socket.setdefaulttimeout, 'spam')


    def testIPv4toString(self):
        if not hasattr(socket, 'inet_pton'):
            return None

        f = inet_aton
        inet_pton = inet_pton
        AF_INET = AF_INET
        import socket

        g = lambda a: inet_pton(AF_INET, a)
        self.assertEquals('\x00\x00\x00\x00', f('0.0.0.0'))
        self.assertEquals('\xff\x00\xff\x00', f('255.0.255.0'))
        self.assertEquals('\xaa\xaa\xaa\xaa', f('170.170.170.170'))
        self.assertEquals('\x01\x02\x03\x04', f('1.2.3.4'))
        self.assertEquals('\xff\xff\xff\xff', f('255.255.255.255'))
        self.assertEquals('\x00\x00\x00\x00', g('0.0.0.0'))
        self.assertEquals('\xff\x00\xff\x00', g('255.0.255.0'))
        self.assertEquals('\xaa\xaa\xaa\xaa', g('170.170.170.170'))
        self.assertEquals('\xff\xff\xff\xff', g('255.255.255.255'))


    def testIPv6toString(self):
        if not hasattr(socket, 'inet_pton'):
            return None


        try:
            inet_pton = inet_pton
            AF_INET6 = AF_INET6
            has_ipv6 = has_ipv6
            import socket
            if not has_ipv6:
                return None
        except ImportError:
            return None


        f = lambda a: inet_pton(AF_INET6, a)
        self.assertEquals('\x00' * 16, f('::'))
        self.assertEquals('\x00' * 16, f('0::0'))
        self.assertEquals('\x00\x01' + '\x00' * 14, f('1::'))
        self.assertEquals('E\xefv\xcb\x00\x1aV\xef\xaf\xeb\x0b\xac\x19$\xae\xae', f('45ef:76cb:1a:56ef:afeb:bac:1924:aeae'))


    def testStringToIPv4(self):
        if not hasattr(socket, 'inet_ntop'):
            return None

        f = inet_ntoa
        inet_ntop = inet_ntop
        AF_INET = AF_INET
        import socket

        g = lambda a: inet_ntop(AF_INET, a)
        self.assertEquals('1.0.1.0', f('\x01\x00\x01\x00'))
        self.assertEquals('170.85.170.85', f('\xaaU\xaaU'))
        self.assertEquals('255.255.255.255', f('\xff\xff\xff\xff'))
        self.assertEquals('1.2.3.4', f('\x01\x02\x03\x04'))
        self.assertEquals('1.0.1.0', g('\x01\x00\x01\x00'))
        self.assertEquals('170.85.170.85', g('\xaaU\xaaU'))
        self.assertEquals('255.255.255.255', g('\xff\xff\xff\xff'))


    def testStringToIPv6(self):
        if not hasattr(socket, 'inet_ntop'):
            return None


        try:
            inet_ntop = inet_ntop
            AF_INET6 = AF_INET6
            has_ipv6 = has_ipv6
            import socket
            if not has_ipv6:
                return None
        except ImportError:
            return None


        f = lambda a: inet_ntop(AF_INET6, a)
        self.assertEquals('::', f('\x00' * 16))
        self.assertEquals('::1', f('\x00' * 15 + '\x01'))
        self.assertEquals('aef:b01:506:1001:ffff:9997:55:170', f('\n\xef\x0b\x01\x05\x06\x10\x01\xff\xff\x99\x97\x00U\x01p'))


    def testSockName(self):
        sock = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
        sock.bind(('0.0.0.0', PORT + 1))
        name = sock.getsockname()
        self.assertEqual(name, ('0.0.0.0', PORT + 1))


    def testGetSockOpt(self):
        sock = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
        reuse = sock.getsockopt(socket.SOL_SOCKET, socket.SO_REUSEADDR)
        self.failIf(reuse != 0, 'initial mode is reuse')


    def testSetSockOpt(self):
        sock = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
        sock.setsockopt(socket.SOL_SOCKET, socket.SO_REUSEADDR, 1)
        reuse = sock.getsockopt(socket.SOL_SOCKET, socket.SO_REUSEADDR)
        self.failIf(reuse == 0, 'failed to set reuse mode')


    def testSendAfterClose(self):
        sock = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
        sock.settimeout(1)
        sock.close()
        self.assertRaises(socket.error, sock.send, 'spam')



class BasicTCPTest(SocketConnectedTest):

    def __init__(self, methodName = 'runTest'):
        SocketConnectedTest.__init__(self, methodName = methodName)


    def testRecv(self):
        msg = self.cli_conn.recv(1024)
        self.assertEqual(msg, MSG)


    def _testRecv(self):
        self.serv_conn.send(MSG)


    def testOverFlowRecv(self):
        seg1 = self.cli_conn.recv(len(MSG) - 3)
        seg2 = self.cli_conn.recv(1024)
        msg = seg1 + seg2
        self.assertEqual(msg, MSG)


    def _testOverFlowRecv(self):
        self.serv_conn.send(MSG)


    def testRecvFrom(self):
        (msg, addr) = self.cli_conn.recvfrom(1024)
        self.assertEqual(msg, MSG)


    def _testRecvFrom(self):
        self.serv_conn.send(MSG)


    def testOverFlowRecvFrom(self):
        (seg1, addr) = self.cli_conn.recvfrom(len(MSG) - 3)
        (seg2, addr) = self.cli_conn.recvfrom(1024)
        msg = seg1 + seg2
        self.assertEqual(msg, MSG)


    def _testOverFlowRecvFrom(self):
        self.serv_conn.send(MSG)


    def testSendAll(self):
        msg = ''
        while None:
            read = self.cli_conn.recv(1024)
            if not read:
                break

            msg += read
        self.assertEqual(msg, 'f' * 2048)


    def _testSendAll(self):
        big_chunk = 'f' * 2048
        self.serv_conn.sendall(big_chunk)


    def testFromFd(self):
        if not hasattr(socket, 'fromfd'):
            return None

        fd = self.cli_conn.fileno()
        sock = socket.fromfd(fd, socket.AF_INET, socket.SOCK_STREAM)
        msg = sock.recv(1024)
        self.assertEqual(msg, MSG)


    def _testFromFd(self):
        self.serv_conn.send(MSG)


    def testShutdown(self):
        msg = self.cli_conn.recv(1024)
        self.assertEqual(msg, MSG)


    def _testShutdown(self):
        self.serv_conn.send(MSG)
        self.serv_conn.shutdown(2)



class BasicUDPTest(ThreadedUDPSocketTest):

    def __init__(self, methodName = 'runTest'):
        ThreadedUDPSocketTest.__init__(self, methodName = methodName)


    def testSendtoAndRecv(self):
        msg = self.serv.recv(len(MSG))
        self.assertEqual(msg, MSG)


    def _testSendtoAndRecv(self):
        self.cli.sendto(MSG, 0, (HOST, PORT))


    def testRecvFrom(self):
        (msg, addr) = self.serv.recvfrom(len(MSG))
        self.assertEqual(msg, MSG)


    def _testRecvFrom(self):
        self.cli.sendto(MSG, 0, (HOST, PORT))



class BasicSocketPairTest(SocketPairTest):

    def __init__(self, methodName = 'runTest'):
        SocketPairTest.__init__(self, methodName = methodName)


    def testRecv(self):
        msg = self.serv.recv(1024)
        self.assertEqual(msg, MSG)


    def _testRecv(self):
        self.cli.send(MSG)


    def testSend(self):
        self.serv.send(MSG)


    def _testSend(self):
        msg = self.cli.recv(1024)
        self.assertEqual(msg, MSG)



class NonBlockingTCPTests(ThreadedTCPSocketTest):

    def __init__(self, methodName = 'runTest'):
        ThreadedTCPSocketTest.__init__(self, methodName = methodName)


    def testSetBlocking(self):
        self.serv.setblocking(0)
        start = time.time()

        try:
            self.serv.accept()
        except socket.error:
            pass

        end = time.time()
        self.assert_(end - start < 1.0, 'Error setting non-blocking mode.')


    def _testSetBlocking(self):
        pass


    def testAccept(self):
        self.serv.setblocking(0)

        try:
            (conn, addr) = self.serv.accept()
        except socket.error:
            pass

        self.fail('Error trying to do non-blocking accept.')
        (read, write, err) = select.select([
            self.serv], [], [])
        if self.serv in read:
            (conn, addr) = self.serv.accept()
        else:
            self.fail('Error trying to do accept after select.')


    def _testAccept(self):
        time.sleep(0.10000000000000001)
        self.cli.connect((HOST, PORT))


    def testConnect(self):
        (conn, addr) = self.serv.accept()


    def _testConnect(self):
        self.cli.settimeout(10)
        self.cli.connect((HOST, PORT))


    def testRecv(self):
        (conn, addr) = self.serv.accept()
        conn.setblocking(0)

        try:
            msg = conn.recv(len(MSG))
        except socket.error:
            pass

        self.fail('Error trying to do non-blocking recv.')
        (read, write, err) = select.select([
            conn], [], [])
        if conn in read:
            msg = conn.recv(len(MSG))
            self.assertEqual(msg, MSG)
        else:
            self.fail('Error during select call to non-blocking socket.')


    def _testRecv(self):
        self.cli.connect((HOST, PORT))
        time.sleep(0.10000000000000001)
        self.cli.send(MSG)



class FileObjectClassTestCase(SocketConnectedTest):
    bufsize = -1

    def __init__(self, methodName = 'runTest'):
        SocketConnectedTest.__init__(self, methodName = methodName)


    def setUp(self):
        SocketConnectedTest.setUp(self)
        self.serv_file = self.cli_conn.makefile('rb', self.bufsize)


    def tearDown(self):
        self.serv_file.close()
        self.assert_(self.serv_file.closed)
        self.serv_file = None
        SocketConnectedTest.tearDown(self)


    def clientSetUp(self):
        SocketConnectedTest.clientSetUp(self)
        self.cli_file = self.serv_conn.makefile('wb')


    def clientTearDown(self):
        self.cli_file.close()
        self.assert_(self.cli_file.closed)
        self.cli_file = None
        SocketConnectedTest.clientTearDown(self)


    def testSmallRead(self):
        first_seg = self.serv_file.read(len(MSG) - 3)
        second_seg = self.serv_file.read(3)
        msg = first_seg + second_seg
        self.assertEqual(msg, MSG)


    def _testSmallRead(self):
        self.cli_file.write(MSG)
        self.cli_file.flush()


    def testFullRead(self):
        msg = self.serv_file.read()
        self.assertEqual(msg, MSG)


    def _testFullRead(self):
        self.cli_file.write(MSG)
        self.cli_file.close()


    def testUnbufferedRead(self):
        buf = ''
        while None:
            char = self.serv_file.read(1)
            if not char:
                break

            buf += char
        self.assertEqual(buf, MSG)


    def _testUnbufferedRead(self):
        self.cli_file.write(MSG)
        self.cli_file.flush()


    def testReadline(self):
        line = self.serv_file.readline()
        self.assertEqual(line, MSG)


    def _testReadline(self):
        self.cli_file.write(MSG)
        self.cli_file.flush()


    def testClosedAttr(self):
        self.assert_(not (self.serv_file.closed))


    def _testClosedAttr(self):
        self.assert_(not (self.cli_file.closed))



class UnbufferedFileObjectClassTestCase(FileObjectClassTestCase):
    """Repeat the tests from FileObjectClassTestCase with bufsize==0.

    In this case (and in this case only), it should be possible to
    create a file object, read a line from it, create another file
    object, read another line from it, without loss of data in the
    first file object's buffer.  Note that httplib relies on this
    when reading multiple requests from the same socket."""
    bufsize = 0

    def testUnbufferedReadline(self):
        line = self.serv_file.readline()
        self.assertEqual(line, 'A. ' + MSG)
        self.serv_file = self.cli_conn.makefile('rb', 0)
        line = self.serv_file.readline()
        self.assertEqual(line, 'B. ' + MSG)


    def _testUnbufferedReadline(self):
        self.cli_file.write('A. ' + MSG)
        self.cli_file.write('B. ' + MSG)
        self.cli_file.flush()



class LineBufferedFileObjectClassTestCase(FileObjectClassTestCase):
    bufsize = 1


class SmallBufferedFileObjectClassTestCase(FileObjectClassTestCase):
    bufsize = 2


class TCPTimeoutTest(SocketTCPTest):

    def testTCPTimeout(self):

        def raise_timeout(*args, **kwargs):
            self.serv.settimeout(1.0)
            self.serv.accept()

        self.failUnlessRaises(socket.timeout, raise_timeout, 'Error generating a timeout exception (TCP)')


    def testTimeoutZero(self):
        ok = False

        try:
            self.serv.settimeout(0.0)
            foo = self.serv.accept()
        except socket.timeout:
            self.fail('caught timeout instead of error (TCP)')
        except socket.error:
            ok = True
        except:
            self.fail('caught unexpected exception (TCP)')

        if not ok:
            self.fail('accept() returned success when we did not expect it')




class UDPTimeoutTest(SocketTCPTest):

    def testUDPTimeout(self):

        def raise_timeout(*args, **kwargs):
            self.serv.settimeout(1.0)
            self.serv.recv(1024)

        self.failUnlessRaises(socket.timeout, raise_timeout, 'Error generating a timeout exception (UDP)')


    def testTimeoutZero(self):
        ok = False

        try:
            self.serv.settimeout(0.0)
            foo = self.serv.recv(1024)
        except socket.timeout:
            self.fail('caught timeout instead of error (UDP)')
        except socket.error:
            ok = True
        except:
            self.fail('caught unexpected exception (UDP)')

        if not ok:
            self.fail('recv() returned success when we did not expect it')




class TestExceptions(unittest.TestCase):

    def testExceptionTree(self):
        self.assert_(issubclass(socket.error, Exception))
        self.assert_(issubclass(socket.herror, socket.error))
        self.assert_(issubclass(socket.gaierror, socket.error))
        self.assert_(issubclass(socket.timeout, socket.error))



def test_main():
    tests = [
        GeneralModuleTests,
        BasicTCPTest,
        TCPTimeoutTest,
        TestExceptions]
    if sys.platform != 'mac':
        tests.extend([
            BasicUDPTest,
            UDPTimeoutTest])

    tests.extend([
        NonBlockingTCPTests,
        FileObjectClassTestCase,
        UnbufferedFileObjectClassTestCase,
        LineBufferedFileObjectClassTestCase,
        SmallBufferedFileObjectClassTestCase])
    if hasattr(socket, 'socketpair'):
        tests.append(BasicSocketPairTest)

    test_support.run_unittest(*tests)

if __name__ == '__main__':
    test_main()