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'''Test case for timeout() signals from QTimer object.'''
import unittest
import os
import sys
from tempfile import mkstemp
from PySide.QtCore import QObject, QTimer, SIGNAL
from helper import UsesQCoreApplication
class WatchDog(QObject):
'''Exits the QCoreApplication main loop after sometime.'''
def __init__(self, watched):
QObject.__init__(self)
self.times_called = 0
self.watched = watched
def timerEvent(self, evt):
self.times_called += 1
if self.times_called == 20:
self.watched.exit_app_cb()
class TestTimeoutSignal(UsesQCoreApplication):
'''Test case to check if the signals are really being caught'''
def setUp(self):
#Acquire resources
UsesQCoreApplication.setUp(self)
self.watchdog = WatchDog(self)
self.timer = QTimer()
self.called = False
def tearDown(self):
#Release resources
del self.watchdog
del self.timer
del self.called
UsesQCoreApplication.tearDown(self)
def callback(self, *args):
#Default callback
self.called = True
def testTimeoutSignal(self):
#Test the QTimer timeout() signal
refCount = sys.getrefcount(self.timer)
QObject.connect(self.timer, SIGNAL('timeout()'), self.callback)
self.timer.start(4)
self.watchdog.startTimer(10)
self.app.exec_()
self.assert_(self.called)
self.assertEqual(sys.getrefcount(self.timer), refCount)
if __name__ == '__main__':
unittest.main()
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