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
|
/****************************************************************************
**
** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
** Contact: Nokia Corporation (qt-info@nokia.com)
**
** This file is part of the test suite of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL$
** No Commercial Usage
** This file contains pre-release code and may not be distributed.
** You may use this file in accordance with the terms and conditions
** contained in the either Technology Preview License Agreement or the
** Beta Release License Agreement.
**
** GNU Lesser General Public License Usage
** Alternatively, this file may be used under the terms of the GNU Lesser
** General Public License version 2.1 as published by the Free Software
** Foundation and appearing in the file LICENSE.LGPL included in the
** packaging of this file. 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.
**
** In addition, as a special exception, Nokia gives you certain
** additional rights. These rights are described in the Nokia Qt LGPL
** Exception version 1.0, included in the file LGPL_EXCEPTION.txt in this
** package.
**
** GNU General Public License Usage
** Alternatively, this file may be used under the terms of the GNU
** General Public License version 3.0 as published by the Free Software
** Foundation and appearing in the file LICENSE.GPL included in the
** packaging of this file. Please review the following information to
** ensure the GNU General Public License version 3.0 requirements will be
** met: http://www.gnu.org/copyleft/gpl.html.
**
** If you are unsure which license is appropriate for your use, please
** contact the sales department at http://qt.nokia.com/contact.
** $QT_END_LICENSE$
**
****************************************************************************/
#include <QtTest/QtTest>
#include <private/qringbuffer_p.h>
class tst_QRingBuffer : public QObject
{
Q_OBJECT
public:
tst_QRingBuffer();
virtual ~tst_QRingBuffer();
public slots:
void initTestCase();
void cleanupTestCase();
private slots:
void readPointerAtPositionWriteRead();
void readPointerAtPositionEmptyRead();
void readPointerAtPositionWithHead();
void readPointerAtPositionReadTooMuch();
void sizeWhenEmpty();
void sizeWhenReservedAndChopped();
void sizeWhenReserved();
};
tst_QRingBuffer::tst_QRingBuffer()
{
}
tst_QRingBuffer::~tst_QRingBuffer()
{
}
void tst_QRingBuffer::initTestCase()
{
}
void tst_QRingBuffer::cleanupTestCase()
{
}
void tst_QRingBuffer::sizeWhenReserved()
{
QRingBuffer ringBuffer;
ringBuffer.reserve(5);
QCOMPARE(ringBuffer.size(), 5);
}
void tst_QRingBuffer::sizeWhenReservedAndChopped()
{
QRingBuffer ringBuffer;
ringBuffer.reserve(31337);
ringBuffer.chop(31337);
QCOMPARE(ringBuffer.size(), 0);
}
void tst_QRingBuffer::sizeWhenEmpty()
{
QRingBuffer ringBuffer;
QCOMPARE(ringBuffer.size(), 0);
}
void tst_QRingBuffer::readPointerAtPositionReadTooMuch()
{
QRingBuffer ringBuffer;
qint64 length;
const char *buf = ringBuffer.readPointerAtPosition(42, length);
QVERIFY(buf == 0);
QVERIFY(length == 0);
}
void tst_QRingBuffer::readPointerAtPositionWithHead()
{
QRingBuffer ringBuffer;
char *buf = ringBuffer.reserve(4);
memcpy (buf, "0123", 4);
ringBuffer.free(2);
// ringBuffer should have stayed the same except
// its head it had moved to position 2
qint64 length;
const char* buf2 = ringBuffer.readPointerAtPosition(0, length);
QCOMPARE(length, qint64(2));
QVERIFY(*buf2 == '2');
QVERIFY(*(buf2+1) == '3');
// advance 2 more, ringBuffer should be empty then
ringBuffer.free(2);
buf2 = ringBuffer.readPointerAtPosition(0, length);
QCOMPARE(length, qint64(0));
QVERIFY(buf2 == 0);
}
void tst_QRingBuffer::readPointerAtPositionEmptyRead()
{
QRingBuffer ringBuffer;
qint64 length;
const char *buf = ringBuffer.readPointerAtPosition(0, length);
QVERIFY(buf == 0);
QVERIFY(length == 0);
}
void tst_QRingBuffer::readPointerAtPositionWriteRead()
{
//create some data
QBuffer inData;
inData.open(QIODevice::ReadWrite);
inData.putChar(0x42);
inData.putChar(0x23);
inData.write("Qt rocks!");
for (int i = 0; i < 5000; i++)
inData.write(QString("Number %1").arg(i).toUtf8());
inData.reset();
QVERIFY(inData.size() > 0);
//put the inData in the QRingBuffer
QRingBuffer ringBuffer;
qint64 remaining = inData.size();
while (remaining > 0) {
// write in chunks of 50 bytes
// this ensures there will be multiple QByteArrays inside the QRingBuffer
// since QRingBuffer is then only using individual arrays of around 4000 bytes
qint64 thisWrite = qMin(remaining, qint64(50));
char *pos = ringBuffer.reserve(thisWrite);
inData.read(pos, thisWrite);
remaining -= thisWrite;
}
// was data put into it?
QVERIFY(ringBuffer.size() > 0);
QCOMPARE(qint64(ringBuffer.size()), inData.size());
//read from the QRingBuffer in loop, put back into another QBuffer
QBuffer outData;
outData.open(QIODevice::ReadWrite);
remaining = ringBuffer.size();
while (remaining > 0) {
qint64 thisRead;
// always try to read as much as possible
const char *buf = ringBuffer.readPointerAtPosition(ringBuffer.size() - remaining, thisRead);
outData.write(buf, thisRead);
remaining -= thisRead;
}
outData.reset();
QVERIFY(outData.size() > 0);
// was the data read from the QRingBuffer the same as the one written into it?
QCOMPARE(outData.size(), inData.size());
QVERIFY(outData.buffer().startsWith(inData.buffer()));
}
QTEST_APPLESS_MAIN(tst_QRingBuffer)
#include "tst_qringbuffer.moc"
|
