384 lines
12 KiB
Python
384 lines
12 KiB
Python
# Copyright (c) 2008-2009 AG Projects
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# Author: Denis Bilenko
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#
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# Permission is hereby granted, free of charge, to any person obtaining a copy
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# of this software and associated documentation files (the "Software"), to deal
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# in the Software without restriction, including without limitation the rights
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# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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# copies of the Software, and to permit persons to whom the Software is
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# furnished to do so, subject to the following conditions:
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#
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# The above copyright notice and this permission notice shall be included in
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# all copies or substantial portions of the Software.
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#
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# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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# THE SOFTWARE.
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import sys
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import unittest
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from eventlet.api import sleep, with_timeout
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from eventlet import api, proc, coros
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from greentest import LimitedTestCase
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DELAY = 0.01
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class TestEventSource(LimitedTestCase):
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def test_send(self):
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s = proc.Source()
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q1, q2, q3 = coros.queue(), coros.queue(), coros.queue()
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s.link_value(q1)
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assert s.wait(0) is None
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assert s.wait(0.001, None) is None
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s.send(1)
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assert not q1.ready()
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assert s.wait()==1
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api.sleep(0)
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assert q1.ready()
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s.link_exception(q2)
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s.link(q3)
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assert not q2.ready()
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api.sleep(0)
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assert q3.ready()
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assert s.wait()==1
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def test_send_exception(self):
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s = proc.Source()
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q1, q2, q3 = coros.queue(), coros.queue(), coros.queue()
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s.link_exception(q1)
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s.send_exception(OSError('hello'))
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api.sleep(0)
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assert q1.ready()
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s.link_value(q2)
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s.link(q3)
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assert not q2.ready()
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api.sleep(0)
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assert q3.ready()
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self.assertRaises(OSError, q1.wait)
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self.assertRaises(OSError, q3.wait)
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self.assertRaises(OSError, s.wait)
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class SimpleTestProc(LimitedTestCase):
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def test_proc(self):
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p = proc.spawn(lambda : 100)
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receiver = proc.spawn(api.sleep, 1)
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p.link(receiver)
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self.assertRaises(proc.LinkedCompleted, receiver.wait)
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receiver2 = proc.spawn(api.sleep, 1)
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p.link(receiver2)
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self.assertRaises(proc.LinkedCompleted, receiver2.wait)
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def test_event(self):
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p = proc.spawn(lambda : 100)
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event = coros.event()
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p.link(event)
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self.assertEqual(event.wait(), 100)
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for i in xrange(3):
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event2 = coros.event()
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p.link(event2)
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self.assertEqual(event2.wait(), 100)
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def test_current(self):
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p = proc.spawn(lambda : 100)
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p.link()
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self.assertRaises(proc.LinkedCompleted, sleep, 0.1)
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class TestCase(LimitedTestCase):
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def link(self, p, listener=None):
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getattr(p, self.link_method)(listener)
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def tearDown(self):
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LimitedTestCase.tearDown(self)
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self.p.unlink()
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def set_links(self, p, first_time, kill_exc_type):
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event = coros.event()
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self.link(p, event)
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proc_flag = []
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def receiver():
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sleep(DELAY)
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proc_flag.append('finished')
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receiver = proc.spawn(receiver)
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self.link(p, receiver)
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queue = coros.queue(1)
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self.link(p, queue)
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try:
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self.link(p)
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api.sleep(0)
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except kill_exc_type:
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if first_time:
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raise
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else:
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assert first_time, 'not raising here only first time'
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callback_flag = ['initial']
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self.link(p, lambda *args: callback_flag.remove('initial'))
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for _ in range(10):
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self.link(p, coros.event())
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self.link(p, coros.queue(1))
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return event, receiver, proc_flag, queue, callback_flag
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def set_links_timeout(self, link):
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# stuff that won't be touched
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event = coros.event()
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link(event)
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proc_finished_flag = []
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def myproc():
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sleep(10)
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proc_finished_flag.append('finished')
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return 555
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myproc = proc.spawn(myproc)
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link(myproc)
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queue = coros.queue(0)
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link(queue)
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return event, myproc, proc_finished_flag, queue
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def check_timed_out(self, event, myproc, proc_finished_flag, queue):
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X = object()
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assert with_timeout(DELAY, event.wait, timeout_value=X) is X
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assert with_timeout(DELAY, queue.wait, timeout_value=X) is X
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assert with_timeout(DELAY, proc.waitall, [myproc], timeout_value=X) is X
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assert proc_finished_flag == [], proc_finished_flag
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class TestReturn_link(TestCase):
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link_method = 'link'
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def test_return(self):
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def return25():
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return 25
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p = self.p = proc.spawn(return25)
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self._test_return(p, True, 25, proc.LinkedCompleted, lambda : sleep(0))
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# repeating the same with dead process
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for _ in xrange(3):
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self._test_return(p, False, 25, proc.LinkedCompleted, lambda : sleep(0))
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def _test_return(self, p, first_time, result, kill_exc_type, action):
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event, receiver, proc_flag, queue, callback_flag = self.set_links(p, first_time, kill_exc_type)
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# stuff that will time out because there's no unhandled exception:
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xxxxx = self.set_links_timeout(p.link_exception)
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try:
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sleep(DELAY*2)
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except kill_exc_type:
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assert first_time, 'raising here only first time'
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else:
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assert not first_time, 'Should not raise LinkedKilled here after first time'
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assert not p, p
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self.assertEqual(event.wait(), result)
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self.assertEqual(queue.wait(), result)
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self.assertRaises(kill_exc_type, receiver.wait)
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self.assertRaises(kill_exc_type, proc.waitall, [receiver])
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sleep(DELAY)
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assert not proc_flag, proc_flag
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assert not callback_flag, callback_flag
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self.check_timed_out(*xxxxx)
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class TestReturn_link_value(TestReturn_link):
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sync = False
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link_method = 'link_value'
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class TestRaise_link(TestCase):
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link_method = 'link'
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def _test_raise(self, p, first_time, kill_exc_type):
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event, receiver, proc_flag, queue, callback_flag = self.set_links(p, first_time, kill_exc_type)
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xxxxx = self.set_links_timeout(p.link_value)
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try:
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sleep(DELAY)
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except kill_exc_type:
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assert first_time, 'raising here only first time'
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else:
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assert not first_time, 'Should not raise LinkedKilled here after first time'
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assert not p, p
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self.assertRaises(ValueError, event.wait)
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self.assertRaises(ValueError, queue.wait)
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self.assertRaises(kill_exc_type, proc.waitall, [receiver])
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sleep(DELAY)
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assert not proc_flag, proc_flag
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assert not callback_flag, callback_flag
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self.check_timed_out(*xxxxx)
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def test_raise(self):
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p = self.p = proc.spawn(int, 'badint')
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self._test_raise(p, True, proc.LinkedFailed)
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# repeating the same with dead process
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for _ in xrange(3):
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self._test_raise(p, False, proc.LinkedFailed)
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def _test_kill(self, p, first_time, kill_exc_type):
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event, receiver, proc_flag, queue, callback_flag = self.set_links(p, first_time, kill_exc_type)
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xxxxx = self.set_links_timeout(p.link_value)
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p.kill()
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try:
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sleep(DELAY)
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except kill_exc_type:
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assert first_time, 'raising here only first time'
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else:
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assert not first_time, 'Should not raise LinkedKilled here after first time'
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assert not p, p
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self.assertRaises(proc.ProcExit, event.wait)
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self.assertRaises(proc.ProcExit, queue.wait)
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self.assertRaises(kill_exc_type, proc.waitall, [receiver])
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sleep(DELAY)
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assert not proc_flag, proc_flag
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assert not callback_flag, callback_flag
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self.check_timed_out(*xxxxx)
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def test_kill(self):
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p = self.p = proc.spawn(sleep, DELAY)
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self._test_kill(p, True, proc.LinkedKilled)
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# repeating the same with dead process
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for _ in xrange(3):
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self._test_kill(p, False, proc.LinkedKilled)
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class TestRaise_link_exception(TestCase):
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link_method = 'link_exception'
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class TestStuff(unittest.TestCase):
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def test_wait_noerrors(self):
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x = proc.spawn(lambda : 1)
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y = proc.spawn(lambda : 2)
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z = proc.spawn(lambda : 3)
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self.assertEqual(proc.waitall([x, y, z]), [1, 2, 3])
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e = coros.event()
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x.link(e)
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self.assertEqual(e.wait(), 1)
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x.unlink(e)
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e = coros.event()
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x.link(e)
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self.assertEqual(e.wait(), 1)
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self.assertEqual([proc.waitall([X]) for X in [x, y, z]], [[1], [2], [3]])
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def test_wait_error(self):
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def x():
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sleep(DELAY)
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return 1
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x = proc.spawn(x)
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z = proc.spawn(lambda : 3)
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y = proc.spawn(int, 'badint')
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y.link(x)
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x.link(y)
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y.link(z)
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z.link(y)
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self.assertRaises(ValueError, proc.waitall, [x, y, z])
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self.assertRaises(proc.LinkedFailed, proc.waitall, [x])
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self.assertEqual(proc.waitall([z]), [3])
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self.assertRaises(ValueError, proc.waitall, [y])
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def test_wait_all_exception_order(self):
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# if there're several exceptions raised, the earliest one must be raised by wait
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def badint():
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sleep(0.1)
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int('first')
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a = proc.spawn(badint)
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b = proc.spawn(int, 'second')
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try:
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proc.waitall([a, b])
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except ValueError, ex:
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assert 'second' in str(ex), repr(str(ex))
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def test_multiple_listeners_error(self):
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# if there was an error while calling a callback
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# it should not prevent the other listeners from being called
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# also, all of the errors should be logged, check the output
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# manually that they are
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p = proc.spawn(lambda : 5)
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results = []
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def listener1(*args):
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results.append(10)
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1/0
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def listener2(*args):
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results.append(20)
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2/0
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def listener3(*args):
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3/0
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p.link(listener1)
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p.link(listener2)
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p.link(listener3)
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sleep(DELAY*10)
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assert results in [[10, 20], [20, 10]], results
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p = proc.spawn(int, 'hello')
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results = []
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p.link(listener1)
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p.link(listener2)
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p.link(listener3)
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sleep(DELAY*10)
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assert results in [[10, 20], [20, 10]], results
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def test_multiple_listeners_error_unlink(self):
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# notification must not happen after unlink even
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# though notification process has been already started
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p = proc.spawn(lambda : 5)
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results = []
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def listener1(*args):
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p.unlink(listener2)
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results.append(5)
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1/0
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def listener2(*args):
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p.unlink(listener1)
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results.append(5)
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2/0
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def listener3(*args):
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3/0
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p.link(listener1)
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p.link(listener2)
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p.link(listener3)
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sleep(DELAY*10)
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assert results == [5], results
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def test_killing_unlinked(self):
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e = coros.event()
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def func():
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try:
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1/0
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except:
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e.send_exception(*sys.exc_info())
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p = proc.spawn_link(func)
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try:
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try:
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e.wait()
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except ZeroDivisionError:
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pass
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finally:
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p.unlink()
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sleep(DELAY)
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if __name__=='__main__':
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unittest.main()
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