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"""Misc threading module tests
Made for Jython.
"""
from __future__ import with_statement
import random
import subprocess
import sys
import threading
import time
import unittest
from subprocess import PIPE, Popen
from test import test_support
from threading import Condition, Lock, Thread
from java.lang import Thread as JThread, InterruptedException
class ThreadingTestCase(unittest.TestCase):
def test_str_name(self):
t = Thread(name=1)
self.assertEqual(t.getName(), '1')
t.setName(2)
self.assertEqual(t.getName(), '2')
# make sure activeCount() gets decremented (see issue 1348)
def test_activeCount(self):
activeBefore = threading.activeCount()
activeCount = 10
for i in range(activeCount):
t = Thread(target=self._sleep, args=(i,))
t.setDaemon(0)
t.start()
polls = activeCount
while activeCount > activeBefore and polls > 0:
time.sleep(1)
activeCount = threading.activeCount()
polls -= 1
self.assertTrue(activeCount <= activeBefore, 'activeCount should to be <= %s, instead of %s' % (activeBefore, activeCount))
def _sleep(self, n):
time.sleep(random.random())
def test_issue1988(self):
cond = threading.Condition(threading.Lock())
locked = False
try:
locked = cond.acquire(False)
finally:
if locked:
cond.release()
class TwistedTestCase(unittest.TestCase):
def test_needs_underscored_versions(self):
self.assertEqual(threading.Lock, threading._Lock)
self.assertEqual(threading.RLock, threading._RLock)
class JavaIntegrationTestCase(unittest.TestCase):
"""Verifies that Thread.__tojava__ correctly gets the underlying Java thread"""
def test_interruptible(self):
def wait_until_interrupted(cv):
name = threading.currentThread().getName()
with cv:
while not JThread.currentThread().isInterrupted():
try:
cv.wait()
except InterruptedException, e:
break
num_threads = 5
unfair_condition = Condition()
threads = [
Thread(
name="thread #%d" % i,
target=wait_until_interrupted,
args=(unfair_condition,))
for i in xrange(num_threads)]
for thread in threads:
thread.start()
time.sleep(0.1)
for thread in threads:
JThread.interrupt(thread)
joined_threads = 0
for thread in threads:
thread.join(1.) # timeout just in case so we don't stall regrtest
joined_threads += 1
self.assertEqual(joined_threads, num_threads)
class ReprTestCase(unittest.TestCase):
def test_condition(self):
l = Lock()
c = Condition(l)
self.assertEqual(repr(c), "<_threading.Condition(<_threading.Lock owner=None locked=False>), 0")
l.acquire()
self.assertEqual(repr(c), "<_threading.Condition(<_threading.Lock owner='MainThread' locked=True>), 0")
def test_lock(self):
l = Lock()
self.assertEqual(repr(l), "<_threading.Lock owner=None locked=False>")
r.acquire()
self.assertEqual(repr(r), "<_threading.RLock owner='MainThread' locked=True>")
r.release()
self.assertEqual(repr(r), "<_threading.RLock owner=None locked=False>")
def test_rlock(self):
r = RLock()
self.assertEqual(repr(r), "<_threading.RLock owner=None count=0>")
r.acquire()
self.assertEqual(repr(r), "<_threading.RLock owner='MainThread' count=1>")
r.acquire()
self.assertEqual(repr(r), "<_threading.RLock owner='MainThread' count=2>")
r.release(); r.release()
self.assertEqual(repr(r), "<_threading.RLock owner=None count=0>")
def test_main():
test_support.run_unittest(
JavaIntegrationTestCase,
ThreadingTestCase,
TwistedTestCase)
if __name__ == "__main__":
test_main()
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