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'''Test cases for overriding inherited protected virtual methods'''
import unittest
from PySide.QtCore import QTimerEvent
from PySide.QtGui import QApplication, QSpinBox
from helper import UsesQApplication
class MySpinButton(QSpinBox):
'''Simple example class of overriding QObject.timerEvent'''
def __init__(self, max_runs=5, app=None):
#Creates a new spinbox that will run <max_runs> and quit <app>
super(MySpinButton, self).__init__()
if app is None:
app = QApplication([])
self.app = app
self.max_runs = max_runs
self.runs = 0
def timerEvent(self, event):
#Timer event method
self.runs += 1
self.setValue(self.runs)
if self.runs == self.max_runs:
self.app.quit()
if not isinstance(event, QTimerEvent):
raise TypeError('Invalid event type. Must be TimerEvent')
class TimerEventTest(UsesQApplication):
'''Test case for running QObject.timerEvent from inherited class'''
qapplication = True
def setUp(self):
#Acquire resources
super(TimerEventTest, self).setUp()
self.widget = MySpinButton(app=self.app)
def tearDown(self):
#Release resources
del self.widget
super(TimerEventTest, self).tearDown()
def testMethod(self):
#QWidget.timerEvent overrinding (protected inherited)
timer_id = self.widget.startTimer(0)
self.app.exec_()
self.widget.killTimer(timer_id)
self.assert_(self.widget.runs >= self.widget.max_runs)
if __name__ == '__main__':
unittest.main()
#app = QApplication([])
#widget = MySpinButton(app=app)
#widget.startTimer(500)
#widget.show()
#app.exec_()
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