Lib.test.test_select.py Maven / Gradle / Ivy
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Jython is an implementation of the high-level, dynamic, object-oriented
language Python written in 100% Pure Java, and seamlessly integrated with
the Java platform. It thus allows you to run Python on any Java platform.
"""
AMAK: 20050515: This module is the test_select.py from cpython 2.4, ported to jython + unittest
"""
import errno
import os
import select
import socket
import sys
import test_socket
import unittest
from test import test_support
HOST = test_socket.HOST
PORT = test_socket.PORT + 100
class SelectWrapper:
def __init__(self):
self.read_fds = []
self.write_fds = []
self.oob_fds = []
self.timeout = None
def add_read_fd(self, fd):
self.read_fds.append(fd)
def add_write_fd(self, fd):
self.write_fds.append(fd)
def add_oob_fd(self, fd):
self.oob_fds.append(fd)
def set_timeout(self, timeout):
self.timeout = timeout
class PollWrapper:
def __init__(self):
self.timeout = None
self.poll_object = select.poll()
def add_read_fd(self, fd):
self.poll_object.register(fd, select.POLL_IN)
def add_write_fd(self, fd):
self.poll_object.register(fd, select.POLL_OUT)
def add_oob_fd(self, fd):
self.poll_object.register(fd, select.POLL_PRI)
class TestSelectInvalidParameters(unittest.TestCase):
def testBadSelectSetTypes(self):
# Test some known error conditions
for bad_select_set in [None, 1,]:
for pos in range(2): # OOB not supported on Java
args = [[], [], []]
args[pos] = bad_select_set
try:
timeout = 0 # Can't wait forever
rfd, wfd, xfd = select.select(args[0], args[1], args[2], timeout)
except (select.error, TypeError):
pass
except Exception, x:
self.fail("Selecting on '%s' raised wrong exception %s" % (str(bad_select_set), str(x)))
else:
self.fail("Selecting on '%s' should have raised TypeError" % str(bad_select_set))
def testBadSelectableTypes(self):
class Nope: pass
class Almost1:
def fileno(self):
return 'fileno'
class Almost2:
def fileno(self):
return 'fileno'
# Test some known error conditions
for bad_selectable in [None, 1, object(), Nope(), Almost1(), Almost2()]:
try:
timeout = 0 # Can't wait forever
rfd, wfd, xfd = select.select([bad_selectable], [], [], timeout)
except (TypeError, select.error), x:
pass
else:
self.fail("Selecting on '%s' should have raised TypeError or select.error" % str(bad_selectable))
def testInvalidTimeoutTypes(self):
for invalid_timeout in ['not a number']:
try:
rfd, wfd, xfd = select.select([], [], [], invalid_timeout)
except TypeError:
pass
else:
self.fail("Invalid timeout value '%s' should have raised TypeError" % invalid_timeout)
def testInvalidTimeoutValues(self):
for invalid_timeout in [-1]:
try:
rfd, wfd, xfd = select.select([], [], [], invalid_timeout)
except (ValueError, select.error):
pass
else:
self.fail("Invalid timeout value '%s' should have raised ValueError or select.error" % invalid_timeout)
class TestSelectClientSocket(unittest.TestCase):
def testUnconnectedSocket(self):
sockets = [socket.socket(socket.AF_INET, socket.SOCK_STREAM) for x in range(5)]
for pos in range(2): # OOB not supported on Java
args = [[], [], []]
args[pos] = sockets
timeout = 0 # Can't wait forever
rfd, wfd, xfd = select.select(args[0], args[1], args[2], timeout)
for s in sockets:
self.failIf(s in rfd)
self.failIf(s in wfd)
class TestPollClientSocket(unittest.TestCase):
def testEventConstants(self):
for event_name in ['IN', 'OUT', 'PRI', 'ERR', 'HUP', 'NVAL', ]:
self.failUnless(hasattr(select, 'POLL%s' % event_name))
def testUnregisterRaisesKeyError(self):
s = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
poll_object = select.poll()
try:
poll_object.unregister(s)
except KeyError:
pass
else:
self.fail("Unregistering socket that is not registered should have raised KeyError")
class ThreadedPollClientSocket(test_socket.SocketConnectedTest):
def testSocketRegisteredBeforeConnected(self):
pass
@test_support.retry(Exception)
def _testSocketRegisteredBeforeConnected(self):
timeout = 1000 # milliseconds
poll_object = select.poll()
# Register the socket before it is connected
poll_object.register(self.cli, select.POLLOUT)
result_list = poll_object.poll(timeout)
result_sockets = [r[0] for r in result_list]
self.assertIn(self.cli, result_sockets, "Unconnected client socket should be selectable")
# Now connect the socket, but DO NOT register it again
self.cli.setblocking(0)
self.cli.connect( (self.HOST, self.PORT) )
# Now poll again, to check that the poll object has recognised that the socket is now connected
result_list = poll_object.poll(timeout)
result_sockets = [r[0] for r in result_list]
self.assertIn(self.cli, result_sockets, "Connected client socket should have been selectable")
def testSelectOnSocketFileno(self):
pass
def _testSelectOnSocketFileno(self):
self.cli.setblocking(0)
self.cli.connect( (self.HOST, self.PORT) )
return
try:
rfd, wfd, xfd = select.select([self.cli.fileno()], [], [], 1)
except Exception, x:
self.fail("Selecting on socket.fileno() should not have raised exception: %s" % str(x))
class TestJythonSelect(unittest.TestCase):
# Normally we would have a test_select_jy for such testing, but
# the reality is that this test module is really that test :)
def test_cpython_compatible_select_exists(self):
self.assertIs(select.cpython_compatible_select, select.select)
def test_main():
tests = [TestSelectInvalidParameters,
TestSelectClientSocket,
TestPollClientSocket,
ThreadedPollClientSocket,
TestJythonSelect]
suites = [unittest.makeSuite(klass, 'test') for klass in tests]
test_support._run_suite(unittest.TestSuite(suites))
if __name__ == "__main__":
test_main()