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import unittest
from itertools import count
from AnyQt.QtCore import QObject, isdeleted
from AnyQt.QtWidgets import QApplication
from AnyQt.QtTest import QTest
class TestQtTest(unittest.TestCase):
@classmethod
def setUpClass(cls) -> None:
super().setUpClass()
app = QApplication.instance()
if app is None:
app = QApplication([])
cls.app = app
@classmethod
def tearDownClass(cls) -> None:
cls.app = None
super().tearDownClass()
def test_qwait(self):
obj = QObject()
obj.deleteLater()
QTest.qWait(0)
self.assertTrue(isdeleted(obj))
def test_qwaitfor(self):
counter = count()
current = 0
def pred():
nonlocal current
current = next(counter)
return current > 4
self.assertTrue(QTest.qWaitFor(pred, 100000))
self.assertTrue(current == 5)
self.assertFalse(QTest.qWaitFor(lambda: False, 10))
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