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#!/usr/bin/python
#############################################################################
##
## Copyright (C) 2016 The Qt Company Ltd.
## Contact: https://www.qt.io/licensing/
##
## This file is part of the test suite of Qt for Python.
##
## $QT_BEGIN_LICENSE:GPL-EXCEPT$
## Commercial License Usage
## Licensees holding valid commercial Qt licenses may use this file in
## accordance with the commercial license agreement provided with the
## Software or, alternatively, in accordance with the terms contained in
## a written agreement between you and The Qt Company. For licensing terms
## and conditions see https://www.qt.io/terms-conditions. For further
## information use the contact form at https://www.qt.io/contact-us.
##
## GNU General Public License Usage
## Alternatively, this file may be used under the terms of the GNU
## General Public License version 3 as published by the Free Software
## Foundation with exceptions as appearing in the file LICENSE.GPL3-EXCEPT
## included in the packaging of this file. Please review the following
## information to ensure the GNU General Public License requirements will
## be met: https://www.gnu.org/licenses/gpl-3.0.html.
##
## $QT_END_LICENSE$
##
#############################################################################
'''Test cases for QEnum and QFlags'''
import gc
import os
import sys
import pickle
import unittest
sys.path.append(os.path.dirname(os.path.dirname(os.path.abspath(__file__))))
from init_paths import init_test_paths
init_test_paths(False)
from PySide2.QtCore import Qt, QIODevice
class TestEnum(unittest.TestCase):
def testToInt(self):
self.assertEqual(QIODevice.NotOpen, 0)
self.assertEqual(QIODevice.ReadOnly, 1)
self.assertEqual(QIODevice.WriteOnly, 2)
self.assertEqual(QIODevice.ReadWrite, 1 | 2)
self.assertEqual(QIODevice.Append, 4)
self.assertEqual(QIODevice.Truncate, 8)
self.assertEqual(QIODevice.Text, 16)
self.assertEqual(QIODevice.Unbuffered, 32)
def testToIntInFunction(self):
self.assertEqual(str(int(QIODevice.WriteOnly)), "2")
def testOperations(self):
k = Qt.Key.Key_1
# Integers
self.assertEqual(k + 2, 2 + k)
self.assertEqual(k - 2, -(2 - k))
self.assertEqual(k * 2, 2 * k)
# Floats
with self.assertRaises(TypeError):
a = k+2.0
with self.assertRaises(TypeError):
a = k-2.0
with self.assertRaises(TypeError):
a = k*2.0
@unittest.skipUnless(getattr(sys, "getobjects", None), "requires debug build")
def testEnumNew_NoLeak(self):
gc.collect()
total = sys.gettotalrefcount()
for idx in range(1000):
ret = Qt.Key(42)
gc.collect()
delta = sys.gettotalrefcount() - total
print("delta total refcount =", delta)
if abs(delta) >= 10:
all = sys.getobjects(0)
all.sort(key=lambda x: sys.getrefcount(x), reverse=True)
for ob in all[:10]:
print(sys.getrefcount(ob), ob)
self.assertTrue(abs(delta) < 10)
class TestQFlags(unittest.TestCase):
def testToItn(self):
om = QIODevice.NotOpen
self.assertEqual(om, QIODevice.NotOpen)
self.assertTrue(om == 0)
self.assertTrue(om != QIODevice.ReadOnly)
self.assertTrue(om != 1)
def testToIntInFunction(self):
om = QIODevice.WriteOnly
self.assertEqual(int(om), 2)
def testNonExtensibleEnums(self):
try:
om = QIODevice.OpenMode(QIODevice.WriteOnly)
self.assertFail()
except:
pass
# PYSIDE-15: Pickling of enums
class TestEnumPickling(unittest.TestCase):
def testPickleEnum(self):
# Pickling of enums with different depth works.
ret = pickle.loads(pickle.dumps(QIODevice.Append))
self.assertEqual(ret, QIODevice.Append)
ret = pickle.loads(pickle.dumps(Qt.Key.Key_Asterisk))
self.assertEqual(ret, Qt.Key.Key_Asterisk)
self.assertEqual(ret, Qt.Key(42))
# We can also pickle the whole enum class (built in):
ret = pickle.loads(pickle.dumps(QIODevice))
# This works also with nested classes for Python 3, after we
# introduced the correct __qualname__ attribute.
# Note: For Python 2, we would need quite strange patches.
func = lambda: pickle.loads(pickle.dumps(Qt.Key))
if sys.version_info[0] < 3:
with self.assertRaises(pickle.PicklingError):
func()
else:
func()
if __name__ == '__main__':
unittest.main()
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