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#!/usr/bin/python
#############################################################################
##
## Copyright (C) 2020 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, QObject, QEnum, QFlag
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 --with-trace-refs")
@unittest.skipUnless(getattr(sys, "gettotalrefcount", None), "requires --with-pydebug")
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.getrefcount(x), x) for x in sys.getobjects(0)]
all.sort(key=lambda x: x[0], reverse=True)
for ob in all[:10]:
print(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))
func()
# PYSIDE-957: The QEnum macro
try:
import enum
HAVE_ENUM = True
except ImportError:
HAVE_ENUM = False
QEnum = QFlag = lambda x: x
import types
class Enum: pass
enum = types.ModuleType("enum")
enum.Enum = enum.Flag = enum.IntEnum = enum.IntFlag = Enum
Enum.__module__ = "enum"
Enum.__members__ = {}
del Enum
enum.auto = lambda: 42
HAVE_FLAG = hasattr(enum, "Flag")
@QEnum
class OuterEnum(enum.Enum):
A = 1
B = 2
class SomeClass(QObject):
@QEnum
class SomeEnum(enum.Enum):
A = 1
B = 2
C = 3
@QEnum
class OtherEnum(enum.IntEnum):
A = 1
B = 2
C = 3
class InnerClass(QObject):
@QEnum
class InnerEnum(enum.Enum):
X = 42
class SomeEnum(enum.Enum):
A = 4
B = 5
C = 6
QEnum(SomeEnum) # works even without the decorator assignment
@unittest.skipUnless(HAVE_ENUM, "requires 'enum' module (use 'pip install enum34' for Python 2)")
class TestQEnumMacro(unittest.TestCase):
def testTopLevel(self):
self.assertEqual(type(OuterEnum).__module__, "enum")
self.assertEqual(type(OuterEnum).__name__, "EnumMeta")
self.assertEqual(len(OuterEnum.__members__), 2)
def testSomeClass(self):
self.assertEqual(type(SomeClass.SomeEnum).__module__, "enum")
self.assertEqual(type(SomeClass.SomeEnum).__name__, "EnumMeta")
self.assertEqual(len(SomeClass.SomeEnum.__members__), 3)
with self.assertRaises(TypeError):
int(SomeClass.SomeEnum.C) == 6
self.assertEqual(SomeClass.OtherEnum.C, 3)
@unittest.skipIf(sys.version_info[0] < 3, "we cannot support nested classes in Python 2")
def testInnerClass(self):
self.assertEqual(SomeClass.InnerClass.InnerEnum.__qualname__,
"SomeClass.InnerClass.InnerEnum")
with self.assertRaises(TypeError):
int(SomeClass.InnerClass.InnerEnum.X) == 42
@unittest.skipUnless(HAVE_FLAG, "some older Python versions have no 'Flag'")
def testEnumFlag(self):
with self.assertRaises(TypeError):
class WrongFlagForEnum(QObject):
@QEnum
class Bad(enum.Flag):
pass
with self.assertRaises(TypeError):
class WrongEnuForFlag(QObject):
@QFlag
class Bad(enum.Enum):
pass
def testIsRegistered(self):
mo = SomeClass.staticMetaObject
self.assertEqual(mo.enumeratorCount(), 2)
self.assertEqual(mo.enumerator(0).name(), "OtherEnum")
self.assertEqual(mo.enumerator(0).scope(), "SomeClass")
self.assertEqual(mo.enumerator(1).name(), "SomeEnum")
moi = SomeClass.InnerClass.staticMetaObject
self.assertEqual(moi.enumerator(0).name(), "InnerEnum")
## Question: Should that scope not better be "SomeClass.InnerClass"?
## But we have __qualname__ already:
self.assertEqual(moi.enumerator(0).scope(), "InnerClass")
if __name__ == '__main__':
unittest.main()
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