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'''Test cases for QLabel->pixmap refcount control'''
import unittest
import sys
from helper import UsesQApplication
from PySide.QtGui import QApplication, QLabel, QPixmap
class QLabelTest(UsesQApplication):
'''Test case for constructor of QBrush'''
def testDestroyOwner(self):
p = QPixmap()
l = QLabel()
l.setPixmap(p)
del p
p1 = l.pixmap()
self.assertEqual(sys.getrefcount(p1), 2)
self.assertEqual(sys.getrefcount(l), 2)
del l
self.assertEqual(sys.getrefcount(p1), 2)
def testRefCount(self):
p = QPixmap()
l = QLabel()
l.setPixmap(p)
del p
p1 = l.pixmap()
self.assertEqual(sys.getrefcount(p1), 2)
p2 = l.pixmap()
self.assertEqual(sys.getrefcount(p2), 3)
p3 = l.pixmap()
self.assertEqual(sys.getrefcount(p3), 4)
if __name__ == '__main__':
unittest.main()
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