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# Copyright (C) 2022 The Qt Company Ltd.
# SPDX-License-Identifier: LicenseRef-Qt-Commercial OR GPL-3.0-only WITH Qt-GPL-exception-1.0
import os
import sys
import unittest
from pathlib import Path
sys.path.append(os.fspath(Path(__file__).resolve().parents[1]))
from init_paths import init_test_paths
init_test_paths(False)
import PySide6
# This test tests the new "macro" feature of qApp.
# It also uses the qApp variable to finish the instance and start over.
# Note: this test makes qapplication_singleton_test.py obsolete.
class qAppMacroTest(unittest.TestCase):
_test_1093_is_first = True
def test_qApp_is_like_a_macro_and_can_restart(self):
self._test_1093_is_first = False
from PySide6 import QtCore
try:
from PySide6 import QtGui, QtWidgets
except ImportError:
QtWidgets = QtGui = QtCore
# qApp is in the builtins
self.assertEqual(bool(qApp), False)
# and the type is None
self.assertTrue(qApp is None)
# now we create an application for all cases
classes = (QtCore.QCoreApplication,
QtGui.QGuiApplication,
QtWidgets.QApplication)
fil = sys.stderr
for klass in classes:
print("CREATED", klass([]), file=fil)
fil.flush()
qApp.shutdown()
print("DELETED qApp", qApp, file=fil)
fil.flush()
# creating without deletion raises:
QtCore.QCoreApplication([])
with self.assertRaises(RuntimeError):
QtCore.QCoreApplication([])
self.assertEqual(QtCore.QCoreApplication.instance(), qApp)
def test_1093(self):
# Test that without creating a QApplication staticMetaObject still exists.
# Please see https://bugreports.qt.io/browse/PYSIDE-1093 for explanation.
# Note: This test must run first, otherwise we would be mislead!
assert self._test_1093_is_first
from PySide6 import QtCore
self.assertTrue(QtCore.QObject.staticMetaObject is not None)
app = QtCore.QCoreApplication.instance()
self.assertTrue(QtCore.QObject.staticMetaObject is not None)
if app is None:
app = QtCore.QCoreApplication([])
self.assertTrue(QtCore.QObject.staticMetaObject is not None)
qApp.shutdown()
if __name__ == '__main__':
unittest.main()
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