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# Copyright (C) 2022 The Qt Company Ltd.
# SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only
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)
from PySide6.QtCore import Property, QSize
from PySide6.QtWidgets import QApplication, QMainWindow, QWidget
is_pypy = hasattr(sys, "pypy_version_info")
if not is_pypy:
from PySide6.support import feature
"""
snake_prop_feature_test.py
--------------------------
Test the snake_case and true_property feature.
This works now, including class properties.
"""
class Window(QWidget):
def __init__(self):
super().__init__()
@unittest.skipIf(is_pypy, "__feature__ cannot yet be used with PyPy")
class FeatureTest(unittest.TestCase):
def setUp(self):
qApp or QApplication()
feature.reset()
def tearDown(self):
feature.reset()
qApp.shutdown()
def testRenamedFunctions(self):
window = Window()
window.setWindowTitle('camelCase')
# and now the same with snake_case enabled
from __feature__ import snake_case
# Works with the same window! window = Window()
window.set_window_title('snake_case')
def testPropertyAppearVanish(self):
window = Window()
self.assertTrue(callable(window.isModal))
with self.assertRaises(AttributeError):
window.modal
from __feature__ import snake_case, true_property
# PYSIDE-1548: Make sure that another import does not clear the features.
import sys
self.assertTrue(isinstance(QWidget.modal, property))
self.assertTrue(isinstance(window.modal, bool))
with self.assertRaises(AttributeError):
window.isModal
# switching back
feature.reset()
self.assertTrue(callable(window.isModal))
with self.assertRaises(AttributeError):
window.modal
def testClassProperty(self):
from __feature__ import snake_case, true_property
# We check the class...
self.assertEqual(type(QApplication.quit_on_last_window_closed), bool)
x = QApplication.quit_on_last_window_closed
QApplication.quit_on_last_window_closed = not x
self.assertEqual(QApplication.quit_on_last_window_closed, not x)
# ... and now the instance.
self.assertEqual(type(qApp.quit_on_last_window_closed), bool)
x = qApp.quit_on_last_window_closed
qApp.quit_on_last_window_closed = not x
self.assertEqual(qApp.quit_on_last_window_closed, not x)
# make sure values are equal
self.assertEqual(qApp.quit_on_last_window_closed,
QApplication.quit_on_last_window_closed)
def testUserClassNotAffected(self):
FunctionType = type(lambda: 42)
# Note: the types module does not have MethodDescriptorType in low versions.
MethodDescriptorType = type(str.split)
class UserClass(QWidget):
def someFunc1(self):
pass
@staticmethod
def someFunc2(a, b):
pass
inspect = UserClass.__dict__
self.assertTrue(isinstance(inspect["someFunc1"], FunctionType))
self.assertTrue(isinstance(inspect["someFunc2"], staticmethod))
self.assertTrue(isinstance(UserClass.someFunc2, FunctionType))
self.assertTrue(isinstance(UserClass.addAction, MethodDescriptorType))
from __feature__ import snake_case
inspect = UserClass.__dict__
self.assertTrue(isinstance(inspect["someFunc1"], FunctionType))
self.assertTrue(isinstance(inspect["someFunc2"], staticmethod))
self.assertTrue(isinstance(UserClass.someFunc2, FunctionType))
self.assertTrue(isinstance(UserClass.add_action, MethodDescriptorType))
def testTrueProperyCanOverride(self):
from __feature__ import true_property
class CustomWidget(QWidget):
global prop_result
prop_result = None
@Property(QSize)
def minimumSizeHint(self):
global prop_result
print("called")
prop_result = super().minimumSizeHint
return prop_result
window = QMainWindow()
window.setCentralWidget(CustomWidget(window))
window.show()
self.assertTrue(isinstance(prop_result, QSize))
if __name__ == '__main__':
unittest.main()
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