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
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
|
/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/*
* This file is part of the LibreOffice project.
*
* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/.
*
* This file incorporates work covered by the following license notice:
*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed
* with this work for additional information regarding copyright
* ownership. The ASF licenses this file to you under the Apache
* License, Version 2.0 (the "License"); you may not use this file
* except in compliance with the License. You may obtain a copy of
* the License at http://www.apache.org/licenses/LICENSE-2.0 .
*/
#include <sal/types.h>
#include <cppunit/TestAssert.h>
#include <cppunit/TestFixture.h>
#include <cppunit/extensions/HelperMacros.h>
#include <cppunit/plugin/TestPlugIn.h>
#include "cow_wrapper_clients.hxx"
using namespace ::o3tl;
using namespace ::o3tltests;
class cow_wrapper_test : public CppUnit::TestFixture
{
public:
template< class T > void test( T& rTestObj1, T& rTestObj2, T& rTestObj3 )
{
CPPUNIT_ASSERT_MESSAGE("rTestObj1 is unique",
rTestObj1.is_unique() );
CPPUNIT_ASSERT_MESSAGE("rTestObj2 is unique",
rTestObj2.is_unique() );
CPPUNIT_ASSERT_MESSAGE("rTestObj3 is unique",
rTestObj3.is_unique() );
CPPUNIT_ASSERT_MESSAGE("rTestObj1 != rTestObj2",
rTestObj1 != rTestObj2 );
CPPUNIT_ASSERT_MESSAGE("rTestObj2 != rTestObj3",
rTestObj2 != rTestObj3 );
CPPUNIT_ASSERT_MESSAGE("rTestObj1 != rTestObj3",
rTestObj1 != rTestObj3 );
CPPUNIT_ASSERT_MESSAGE("rTestObj1 < rTestObj2",
rTestObj1 < rTestObj2 );
CPPUNIT_ASSERT_MESSAGE("rTestObj2 < rTestObj3",
rTestObj2 < rTestObj3 );
rTestObj2 = rTestObj1;
rTestObj3 = rTestObj1;
CPPUNIT_ASSERT_MESSAGE("rTestObj1 == rTestObj2",
rTestObj1 == rTestObj2 );
CPPUNIT_ASSERT_MESSAGE("rTestObj1 == rTestObj3",
rTestObj1 == rTestObj3 );
CPPUNIT_ASSERT_MESSAGE("rTestObj1.use_count() == 3",
rTestObj1.use_count() == 3 );
CPPUNIT_ASSERT_MESSAGE("rTestObj2.use_count() == 3",
rTestObj2.use_count() == 3 );
CPPUNIT_ASSERT_MESSAGE("rTestObj3.use_count() == 3",
rTestObj3.use_count() == 3 );
rTestObj2.makeUnique();
CPPUNIT_ASSERT_MESSAGE("rTestObj1 == rTestObj2",
rTestObj1 == rTestObj2 );
CPPUNIT_ASSERT_MESSAGE("rTestObj1 == rTestObj3",
rTestObj1 == rTestObj3 );
CPPUNIT_ASSERT_MESSAGE("rTestObj1.use_count() == 2",
rTestObj1.use_count() == 2 );
CPPUNIT_ASSERT_MESSAGE("rTestObj2.use_count() == 1",
rTestObj2.use_count() == 1 );
CPPUNIT_ASSERT_MESSAGE("rTestObj2.is_unique()",
rTestObj2.is_unique() );
CPPUNIT_ASSERT_MESSAGE("rTestObj3.use_count() == 2",
rTestObj3.use_count() == 2 );
rTestObj2.swap( rTestObj3 );
CPPUNIT_ASSERT_MESSAGE("rTestObj1 == rTestObj2",
rTestObj1 == rTestObj2 );
CPPUNIT_ASSERT_MESSAGE("rTestObj1 == rTestObj3",
rTestObj1 == rTestObj3 );
CPPUNIT_ASSERT_MESSAGE("rTestObj1.use_count() == 2",
rTestObj1.use_count() == 2 );
CPPUNIT_ASSERT_MESSAGE("rTestObj2.use_count() == 2",
rTestObj2.use_count() == 2 );
CPPUNIT_ASSERT_MESSAGE("rTestObj3.use_count() == 1",
rTestObj3.use_count() == 1 );
CPPUNIT_ASSERT_MESSAGE("rTestObj3.is_unique()",
rTestObj3.is_unique() );
}
void testCowWrapper()
{
// setup
cow_wrapper_client1 aTestObj1;
cow_wrapper_client1 aTestObj2;
cow_wrapper_client1 aTestObj3;
cow_wrapper_client2 aTestObj4;
cow_wrapper_client2 aTestObj5;
cow_wrapper_client2 aTestObj6;
cow_wrapper_client3 aTestObj7;
cow_wrapper_client3 aTestObj8;
cow_wrapper_client3 aTestObj9;
{
aTestObj1 = cow_wrapper_client1( 1 );
CPPUNIT_ASSERT_EQUAL(1, aTestObj1.queryUnmodified());
aTestObj2.modify( 2 );
CPPUNIT_ASSERT_EQUAL(2, aTestObj2.queryUnmodified());
aTestObj3.modify( 3 );
CPPUNIT_ASSERT_EQUAL(3, aTestObj3.queryUnmodified());
aTestObj4 = cow_wrapper_client2( 4 );
CPPUNIT_ASSERT_EQUAL(4, aTestObj4.queryUnmodified());
aTestObj5.modify( 5 );
CPPUNIT_ASSERT_EQUAL(5, aTestObj5.queryUnmodified());
aTestObj6.modify( 6 );
CPPUNIT_ASSERT_EQUAL(6, aTestObj6.queryUnmodified());
aTestObj7 = cow_wrapper_client3( 7 );
CPPUNIT_ASSERT_EQUAL(7, aTestObj7.queryUnmodified());
aTestObj8.modify( 8 );
CPPUNIT_ASSERT_EQUAL(8, aTestObj8.queryUnmodified());
aTestObj9.modify( 9 );
CPPUNIT_ASSERT_EQUAL(9, aTestObj9.queryUnmodified());
}
// all three temporaries are dead now
// test
test( aTestObj1, aTestObj2, aTestObj3 );
test( aTestObj4, aTestObj5, aTestObj6 );
test( aTestObj7, aTestObj8, aTestObj9 );
}
void testStaticDefault()
{
cow_wrapper_client4 aTestObj1;
cow_wrapper_client4 aTestObj2;
cow_wrapper_client4 aTestObj3(4);
CPPUNIT_ASSERT_MESSAGE("aTestObj1.is_default()",
aTestObj1.is_default() );
CPPUNIT_ASSERT_MESSAGE("aTestObj2.is_default()",
aTestObj2.is_default() );
CPPUNIT_ASSERT_MESSAGE("!aTestObj3.is_default()",
!aTestObj3.is_default() );
aTestObj1 = aTestObj2;
CPPUNIT_ASSERT_MESSAGE("aTestObj1.is_default() #2",
aTestObj1.is_default() );
CPPUNIT_ASSERT_MESSAGE("aTestObj2.is_default() #2",
aTestObj2.is_default() );
aTestObj1 = aTestObj3;
CPPUNIT_ASSERT_MESSAGE("!aTestObj1.is_default()",
!aTestObj1.is_default() );
}
void testRefCounting()
{
// add scope to ensure appropriate number of calls to
// the reference counting policy have been made
{
// if any incrementing/decrementing occurs a failure
// will occur
cow_wrapper_client5 aTestObj1(1);
cow_wrapper_client5 aTestObj2( std::move( aTestObj1 ) );
CPPUNIT_ASSERT_EQUAL_MESSAGE("aTestObj2.use_count()",
static_cast<sal_uInt32>(1), aTestObj2.use_count() );
// the following should increment
BogusRefCountPolicy::s_bShouldIncrement = true;
cow_wrapper_client5 aTestObj3( aTestObj2 );
CPPUNIT_ASSERT_MESSAGE("s_bShouldIncrement == 0",
!BogusRefCountPolicy::s_bShouldIncrement );
CPPUNIT_ASSERT_EQUAL_MESSAGE("aTestObj3.use_count()",
static_cast<sal_uInt32>(2), aTestObj3.use_count() );
{
cow_wrapper_client5 aTestObj4;
// the following should decrement the lvalue and then increment the rvalue
BogusRefCountPolicy::s_bShouldIncrement = true;
BogusRefCountPolicy::s_bShouldDecrement = true;
aTestObj4 = aTestObj2;
CPPUNIT_ASSERT_MESSAGE("s_bShouldIncrement == 0",
!BogusRefCountPolicy::s_bShouldIncrement );
CPPUNIT_ASSERT_MESSAGE("s_bShouldDecrement == 0",
!BogusRefCountPolicy::s_bShouldDecrement );
CPPUNIT_ASSERT_EQUAL_MESSAGE("aTestObj2.use_count()",
static_cast<sal_uInt32>(3), aTestObj2.use_count() );
CPPUNIT_ASSERT_EQUAL_MESSAGE("aTestObj3.use_count()",
static_cast<sal_uInt32>(3), aTestObj3.use_count() );
CPPUNIT_ASSERT_EQUAL_MESSAGE("aTestObj4.use_count()",
static_cast<sal_uInt32>(3), aTestObj4.use_count() );
CPPUNIT_ASSERT_EQUAL_MESSAGE("aTestObj2 == aTestObj3",
aTestObj3, aTestObj2 );
CPPUNIT_ASSERT_EQUAL_MESSAGE("aTestObj3 == aTestObj4",
aTestObj4, aTestObj3 );
CPPUNIT_ASSERT_EQUAL_MESSAGE("aTestObj2 == aTestObj4",
aTestObj4, aTestObj2 );
// only decrement the lvalue before assignment
BogusRefCountPolicy::s_bShouldDecrement = true;
aTestObj4 = cow_wrapper_client5( 4 );
CPPUNIT_ASSERT_MESSAGE("s_bShouldIncrement == 0",
!BogusRefCountPolicy::s_bShouldIncrement );
// only one call should be made to the ref counting policy's
// decrementing function at the end of the scope
BogusRefCountPolicy::s_bShouldDecrement = true;
}
CPPUNIT_ASSERT_MESSAGE("s_bShouldDecrement == 0",
!BogusRefCountPolicy::s_bShouldDecrement );
// self assignment
// aTestObj2 is defunct afterwards, one decrement happens
BogusRefCountPolicy::s_bShouldDecrement = true;
aTestObj3 = std::move( aTestObj2 );
CPPUNIT_ASSERT_EQUAL_MESSAGE("aTestObj2.use_count()",
static_cast<sal_uInt32>(0), aTestObj2.use_count() ); // NOLINT(bugprone-use-after-move)
CPPUNIT_ASSERT_EQUAL_MESSAGE("aTestObj3.use_count()",
static_cast<sal_uInt32>(1), aTestObj3.use_count() );
cow_wrapper_client5 aTestObj5;
// only decrement the lvalue before assignment
BogusRefCountPolicy::s_bShouldDecrement = true;
aTestObj3 = std::move( aTestObj5 );
CPPUNIT_ASSERT_MESSAGE("s_bShouldDecrement == 0",
!BogusRefCountPolicy::s_bShouldDecrement);
// one call should be made to the ref-counting policy's
// decrementing function at the end of the scope. Only
// aTestObj3 still holds a valid instance
BogusRefCountPolicy::s_nEndOfScope = 1;
}
CPPUNIT_ASSERT_EQUAL_MESSAGE("s_EndOfScope",
static_cast<sal_uInt32>(0), BogusRefCountPolicy::s_nEndOfScope );
}
// Change the following lines only, if you add, remove or rename
// member functions of the current class,
// because these macros are need by auto register mechanism.
CPPUNIT_TEST_SUITE(cow_wrapper_test);
CPPUNIT_TEST(testCowWrapper);
CPPUNIT_TEST(testStaticDefault);
CPPUNIT_TEST(testRefCounting);
CPPUNIT_TEST_SUITE_END();
};
CPPUNIT_TEST_SUITE_REGISTRATION(cow_wrapper_test);
CPPUNIT_PLUGIN_IMPLEMENT();
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
|
