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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 sys
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 QObject, QCoreApplication, ClassInfo
class TestClassInfo(unittest.TestCase):
def test_metadata(self):
@ClassInfo(author='pyside', url='http://www.pyside.org')
class MyObject(QObject):
pass
o = MyObject()
mo = o.metaObject()
self.assertEqual(mo.classInfoCount(), 2)
ci = mo.classInfo(0) # author
self.assertEqual(ci.name(), 'author')
self.assertEqual(ci.value(), 'pyside')
ci = mo.classInfo(1) # url
self.assertEqual(ci.name(), 'url')
self.assertEqual(ci.value(), 'http://www.pyside.org')
def test_dictionary(self):
@ClassInfo({'author': 'pyside', 'author company': 'The Qt Company'})
class MyObject(QObject):
pass
o = MyObject()
mo = o.metaObject()
self.assertEqual(mo.classInfoCount(), 2)
ci = mo.classInfo(0) # author
self.assertEqual(ci.name(), 'author')
self.assertEqual(ci.value(), 'pyside')
ci = mo.classInfo(1) # url
self.assertEqual(ci.name(), 'author company')
self.assertEqual(ci.value(), 'The Qt Company')
def test_verify_metadata_types(self):
valid_dict = {'123': '456'}
invalid_dict_1 = {'123': 456}
invalid_dict_2 = {123: 456}
invalid_dict_3 = {123: '456'}
ClassInfo(**valid_dict)
self.assertRaises(TypeError, ClassInfo, **invalid_dict_1)
# assertRaises only allows for string keywords, so a `try` must be used here.
try:
ClassInfo(**invalid_dict_2)
self.fail('ClassInfo() accepted invalid_dict_2!')
except TypeError:
pass
try:
ClassInfo(**invalid_dict_3)
self.fail('ClassInfo() accepted invalid_dict_3!')
except TypeError:
pass
def test_can_not_use_instance_twice(self):
decorator = ClassInfo(author='pyside', url='http://www.pyside.org')
@decorator
class MyObject1(QObject):
pass
class MyObject2(QObject):
pass
self.assertRaises(TypeError, decorator, MyObject2)
def test_can_only_be_used_on_qobjects(self):
def make_info():
return ClassInfo(author='pyside')
def test_function():
pass
self.assertRaises(TypeError, make_info(), test_function)
class NotAQObject(object):
pass
self.assertRaises(TypeError, make_info(), NotAQObject)
class QObjectSubclass(QObject):
pass
make_info()(QObjectSubclass)
class SubclassOfNativeQObjectSubclass(QCoreApplication):
pass
make_info()(SubclassOfNativeQObjectSubclass)
class SubclassOfPythonQObjectSubclass(QObjectSubclass):
pass
make_info()(SubclassOfPythonQObjectSubclass)
if __name__ == '__main__':
unittest.main()
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