1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
|
#!/usr/bin/env python
# Copyright (C) 2022 The Qt Company Ltd.
# SPDX-License-Identifier: LicenseRef-Qt-Commercial OR GPL-3.0-only WITH Qt-GPL-exception-1.0
'''Test cases for methods that receive references to objects.'''
import os
import sys
import unittest
from pathlib import Path
sys.path.append(os.fspath(Path(__file__).resolve().parents[1]))
from shiboken_paths import init_paths
init_paths()
from sample import Reference, Str
class ExtendedReference(Reference):
def __init__(self):
Reference.__init__(self)
self.uses_reference_virtual_called = False
self.uses_const_reference_virtual_called = False
self.reference_inc = 1
self.const_reference_inc = 2
self.multiplier = 333
def usesReferenceVirtual(self, ref, inc):
self.uses_reference_virtual_called = True
return ref.objId() + inc + self.reference_inc
def usesConstReferenceVirtual(self, ref, inc):
self.uses_const_reference_virtual_called = True
return ref.objId() + inc + self.const_reference_inc
def alterReferenceIdVirtual(self, ref):
ref.setObjId(ref.objId() * self.multiplier)
class ReferenceTest(unittest.TestCase):
'''Test case for methods that receive references to objects.'''
def testMethodThatReceivesReference(self):
'''Test a method that receives a reference to an object as argument.'''
objId = 123
r = Reference(objId)
self.assertEqual(Reference.usesReference(r), objId)
def testCantSegFaultWhenReceiveNone(self):
'''do not segfault when receiving None as argument.'''
s = Str()
self.assertFalse(bool(s))
def testMethodThatReceivesConstReference(self):
'''Test a method that receives a const reference to an object as argument.'''
objId = 123
r = Reference(objId)
self.assertEqual(Reference.usesConstReference(r), objId)
def testModificationOfReference(self):
'''Tests if the identity of a reference argument is preserved when passing
it to be altered in C++.'''
objId = 123
r1 = Reference(objId)
r1.alterReferenceIdVirtual(r1)
self.assertEqual(r1.objId(), objId * Reference.multiplier())
def testModificationOfReferenceCallingAVirtualIndirectly(self):
'''Tests if the identity of a reference argument is preserved when passing it
to be altered in C++ through a method that calls a virtual method.'''
objId = 123
r1 = Reference(objId)
r1.callAlterReferenceIdVirtual(r1)
self.assertEqual(r1.objId(), objId * Reference.multiplier())
def testModificationOfReferenceCallingAReimplementedVirtualIndirectly(self):
'''Test if a Python override of a virtual method with a reference parameter
called from C++ alters the argument properly.'''
objId = 123
r = Reference(objId)
er = ExtendedReference()
result = er.callAlterReferenceIdVirtual(r) # noqa: F841
self.assertEqual(r.objId(), objId * er.multiplier)
def testReimplementedVirtualMethodCallWithReferenceParameter(self):
'''Test if a Python override of a virtual method with a reference parameter
is correctly called from C++.'''
inc = 9
objId = 123
r = Reference(objId)
er = ExtendedReference()
result = er.callUsesReferenceVirtual(r, inc)
self.assertEqual(result, objId + inc + er.reference_inc)
def testReimplementedVirtualMethodCallWithConstReferenceParameter(self):
'''Test if a Python override of a virtual method with a const reference
parameter is correctly called from C++.'''
inc = 9
objId = 123
r = Reference(objId)
er = ExtendedReference()
result = er.callUsesConstReferenceVirtual(r, inc)
self.assertEqual(result, objId + inc + er.const_reference_inc)
if __name__ == '__main__':
unittest.main()
|
