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from __future__ import with_statement
import unittest
from PySide.QtCore import *
class MyWriteThread(QThread):
def __init__(self, lock):
QThread.__init__(self)
self.lock = lock
self.started = False
self.canQuit = False
def run(self):
self.started = True
while not self.lock.tryLockForWrite():
pass
self.canQuit = True
class MyReadThread(QThread):
def __init__(self, lock):
QThread.__init__(self)
self.lock = lock
self.started = False
self.canQuit = False
def run(self):
self.started = True
while not self.lock.tryLockForRead():
pass
self.canQuit = True
class MyMutexedThread(QThread):
def __init__(self, mutex):
QThread.__init__(self)
self.mutex = mutex
self.started = False
self.canQuit = False
def run(self):
self.started = True
while not self.mutex.tryLock():
pass
self.canQuit = True
class TestQMutex (unittest.TestCase):
def testReadLocker(self):
lock = QReadWriteLock()
thread = MyWriteThread(lock)
with QReadLocker(lock):
thread.start()
while not thread.started:
pass
self.assertFalse(thread.canQuit)
thread.wait()
self.assertTrue(thread.canQuit)
def testWriteLocker(self):
lock = QReadWriteLock()
thread = MyReadThread(lock)
with QWriteLocker(lock):
thread.start()
while not thread.started:
pass
self.assertFalse(thread.canQuit)
thread.wait()
self.assertTrue(thread.canQuit)
def testMutexLocker(self):
mutex = QMutex()
thread = MyMutexedThread(mutex)
with QMutexLocker(mutex):
thread.start()
while not thread.started:
pass
self.assertFalse(thread.canQuit)
thread.wait()
self.assertTrue(thread.canQuit)
if __name__ == '__main__':
unittest.main()
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