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#!/usr/bin/env python
# -*- coding: utf-8 -*-
#
# This file is part of the Shiboken Python Bindings Generator project.
#
# Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
#
# Contact: PySide team <contact@pyside.org>
#
# This program is free software; you can redistribute it and/or
# modify it under the terms of the GNU Lesser General Public License
# version 2.1 as published by the Free Software Foundation. Please
# review the following information to ensure the GNU Lesser General
# Public License version 2.1 requirements will be met:
# http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
# #
# This program is distributed in the hope that it will be useful, but
# WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
# Lesser General Public License for more details.
#
# You should have received a copy of the GNU Lesser General Public
# License along with this program; if not, write to the Free Software
# Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
# 02110-1301 USA
'''Test cases for Python representation of C++ enums.'''
import os
import sys
import unittest
import sample
from sample import SampleNamespace, ObjectType, Event
from py3kcompat import IS_PY3K, b
def createTempFile():
if IS_PY3K:
import tempfile
return tempfile.SpooledTemporaryFile(mode='rw')
else:
return os.tmpfile()
class EnumTest(unittest.TestCase):
'''Test case for Python representation of C++ enums.'''
def testEnumRepr(self):
enum = SampleNamespace.Option(1)
self.assertEqual(eval(repr(enum)), enum)
enum = SampleNamespace.Option(999)
self.assertEqual(eval(repr(enum)), enum)
def testHashability(self):
'''Enums should be hashable and different enums with different values should have different hashes'''
self.assertNotEqual(hash(SampleNamespace.TwoIn), hash(SampleNamespace.TwoOut))
def testEnumValuesInsideEnum(self):
'''Enum values should be accessible inside the enum as well as outside.'''
for value_name in SampleNamespace.Option.values:
enum_item1 = getattr(SampleNamespace.Option, value_name)
enum_item2 = getattr(SampleNamespace, value_name)
self.assertEqual(enum_item1, enum_item2)
def testPassingIntegerOnEnumArgument(self):
'''Tries to use an integer in place of an enum argument.'''
self.assertRaises(TypeError, SampleNamespace.getNumber, 1)
def testBuildingEnumFromIntegerValue(self):
'''Tries to build the proper enum using an integer.'''
SampleNamespace.getNumber(SampleNamespace.Option(1))
def testBuildingEnumWithDefaultValue(self):
'''Enum constructor with default value'''
enum = SampleNamespace.Option()
self.assertEqual(enum, SampleNamespace.None_)
def testEnumConversionToAndFromPython(self):
'''Conversion of enum objects from Python to C++ back again.'''
enumout = SampleNamespace.enumInEnumOut(SampleNamespace.TwoIn)
self.assertTrue(enumout, SampleNamespace.TwoOut)
self.assertEqual(repr(enumout), repr(SampleNamespace.TwoOut))
def testEnumConstructorWithTooManyParameters(self):
'''Calling the constructor of non-extensible enum with the wrong number of parameters.'''
self.assertRaises(TypeError, SampleNamespace.InValue, 13, 14)
def testEnumConstructorWithNonNumberParameter(self):
'''Calling the constructor of non-extensible enum with a string.'''
self.assertRaises(TypeError, SampleNamespace.InValue, '1')
def testEnumItemAsDefaultValueToIntArgument(self):
'''Calls function with an enum item as default value to an int argument.'''
self.assertEqual(SampleNamespace.enumItemAsDefaultValueToIntArgument(), SampleNamespace.ZeroIn)
self.assertEqual(SampleNamespace.enumItemAsDefaultValueToIntArgument(SampleNamespace.ZeroOut), SampleNamespace.ZeroOut)
self.assertEqual(SampleNamespace.enumItemAsDefaultValueToIntArgument(123), 123)
def testAnonymousGlobalEnums(self):
'''Checks availability of anonymous global enum items.'''
self.assertEqual(sample.AnonymousGlobalEnum_Value0, 0)
self.assertEqual(sample.AnonymousGlobalEnum_Value1, 1)
def testAnonymousClassEnums(self):
'''Checks availability of anonymous class enum items.'''
self.assertEqual(SampleNamespace.AnonymousClassEnum_Value0, 0)
self.assertEqual(SampleNamespace.AnonymousClassEnum_Value1, 1)
def testEnumTpPrintImplementation(self):
'''Without SbkEnum.tp_print 'print' returns the enum represented as an int.'''
tmpfile = createTempFile()
if IS_PY3K:
from py3k import printToFile
printToFile(tmpfile, Event.ANY_EVENT)
else:
sys.stdout = tmpfile
print(Event.ANY_EVENT)
sys.stdout = sys.__stdout__
tmpfile.seek(0)
text = tmpfile.read().strip()
tmpfile.close()
self.assertEqual(text, str(Event.ANY_EVENT))
self.assertEqual(text, repr(Event.ANY_EVENT))
class MyEvent(Event):
def __init__(self):
Event.__init__(self, Event.EventType(999))
class OutOfBoundsTest(unittest.TestCase):
def testValue(self):
e = MyEvent()
self.assertEqual(repr(e.eventType()), 'sample.Event.EventType(999)')
class EnumOverloadTest(unittest.TestCase):
'''Test case for overloads involving enums'''
def testWithInt(self):
'''Overload with Enums and ints with default value'''
o = ObjectType()
self.assertEqual(o.callWithEnum('', Event.ANY_EVENT, 9), 81)
self.assertEqual(o.callWithEnum('', 9), 9)
if __name__ == '__main__':
unittest.main()
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