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/****************************************************************************
**
** 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 Technology Preview License Agreement accompanying
** this package.
**
** 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 1.1, included in the file LGPL_EXCEPTION.txt in this
** package.
**
** If you have questions regarding the use of this file, please contact
** Nokia at qt-info@nokia.com.
**
**
**
**
**
**
**
**
** $QT_END_LICENSE$
**
****************************************************************************/
#include <QtTest/QtTest>
#include <qvarlengtharray.h>
const int N = 1;
//TESTED_CLASS=
//TESTED_FILES=
class tst_QVarLengthArray : public QObject
{
Q_OBJECT
public:
tst_QVarLengthArray() {}
virtual ~tst_QVarLengthArray() {}
private slots:
void append();
void removeLast();
void oldTests();
void task214223();
};
int fooCtor = 0;
int fooDtor = 0;
struct Foo
{
int *p;
Foo() { p = new int; ++fooCtor; }
Foo(const Foo &other) { p = new int; ++fooCtor; }
void operator=(const Foo & /* other */) { }
~Foo() { delete p; ++fooDtor; }
};
void tst_QVarLengthArray::append()
{
QVarLengthArray<QString> v;
v.append(QString("hello"));
QVarLengthArray<int> v2; // rocket!
v2.append(5);
}
void tst_QVarLengthArray::removeLast()
{
{
QVarLengthArray<char, 2> v;
v.append(0);
v.append(1);
QCOMPARE(v.size(), 2);
v.append(2);
v.append(3);
QCOMPARE(v.size(), 4);
v.removeLast();
QCOMPARE(v.size(), 3);
v.removeLast();
QCOMPARE(v.size(), 2);
}
{
QVarLengthArray<QString, 2> v;
v.append("0");
v.append("1");
QCOMPARE(v.size(), 2);
v.append("2");
v.append("3");
QCOMPARE(v.size(), 4);
v.removeLast();
QCOMPARE(v.size(), 3);
v.removeLast();
QCOMPARE(v.size(), 2);
}
}
void tst_QVarLengthArray::oldTests()
{
{
QVarLengthArray<int, 256> sa(128);
QVERIFY(sa.data() == &sa[0]);
sa[0] = 0xfee;
sa[10] = 0xff;
QVERIFY(sa[0] == 0xfee);
QVERIFY(sa[10] == 0xff);
sa.resize(512);
QVERIFY(sa.data() == &sa[0]);
QVERIFY(sa[0] == 0xfee);
QVERIFY(sa[10] == 0xff);
QVERIFY(sa.size() == 512);
sa.reserve(1024);
QVERIFY(sa.capacity() == 1024);
QVERIFY(sa.size() == 512);
}
{
QVarLengthArray<QString> sa(10);
sa[0] = "Hello";
sa[9] = "World";
QVERIFY(*sa.data() == "Hello");
QVERIFY(sa[9] == "World");
sa.reserve(512);
QVERIFY(*sa.data() == "Hello");
QVERIFY(sa[9] == "World");
sa.resize(512);
QVERIFY(*sa.data() == "Hello");
QVERIFY(sa[9] == "World");
}
{
int arr[2] = {1, 2};
QVarLengthArray<int> sa(10);
QCOMPARE(sa.size(), 10);
sa.append(arr, 2);
QCOMPARE(sa.size(), 12);
QCOMPARE(sa[10], 1);
QCOMPARE(sa[11], 2);
}
{
QString arr[2] = { QString("hello"), QString("world") };
QVarLengthArray<QString> sa(10);
QCOMPARE(sa.size(), 10);
sa.append(arr, 2);
QCOMPARE(sa.size(), 12);
QCOMPARE(sa[10], QString("hello"));
QCOMPARE(sa[11], QString("world"));
sa.append(arr, 1);
QCOMPARE(sa.size(), 13);
QCOMPARE(sa[12], QString("hello"));
sa.append(arr, 0);
QCOMPARE(sa.size(), 13);
}
{
// assignment operator and copy constructor
QVarLengthArray<int> sa(10);
sa[5] = 5;
QVarLengthArray<int> sa2(10);
sa2[5] = 6;
sa2 = sa;
QCOMPARE(sa2[5], 5);
QVarLengthArray<int> sa3(sa);
QCOMPARE(sa3[5], 5);
}
QSKIP("This test causes the machine to crash when allocating too much memory.", SkipSingle);
{
QVarLengthArray<Foo> a;
const int N = 0x7fffffff / sizeof(Foo);
const int Prealloc = a.capacity();
const Foo *data0 = a.constData();
a.resize(N);
if (a.size() == N) {
QVERIFY(a.capacity() >= N);
QCOMPARE(fooCtor, N);
QCOMPARE(fooDtor, 0);
for (int i = 0; i < N; i += 35000)
a[i] = Foo();
} else {
// this is the case we're actually testing
QCOMPARE(a.size(), 0);
QCOMPARE(a.capacity(), Prealloc);
QCOMPARE(a.constData(), data0);
QCOMPARE(fooCtor, 0);
QCOMPARE(fooDtor, 0);
a.resize(5);
QCOMPARE(a.size(), 5);
QCOMPARE(a.capacity(), Prealloc);
QCOMPARE(a.constData(), data0);
QCOMPARE(fooCtor, 5);
QCOMPARE(fooDtor, 0);
a.resize(Prealloc + 1);
QCOMPARE(a.size(), Prealloc + 1);
QVERIFY(a.capacity() >= Prealloc + 1);
QVERIFY(a.constData() != data0);
QCOMPARE(fooCtor, Prealloc + 6);
QCOMPARE(fooDtor, 5);
const Foo *data1 = a.constData();
a.resize(0x10000000);
QCOMPARE(a.size(), 0);
QVERIFY(a.capacity() >= Prealloc + 1);
QVERIFY(a.constData() == data1);
QCOMPARE(fooCtor, Prealloc + 6);
QCOMPARE(fooDtor, Prealloc + 6);
}
}
}
void tst_QVarLengthArray::task214223()
{
//creating a QVarLengthArray of the same size as the prealloc size
// will make the next call to append(const T&) corrupt the memory
// you should get a segfault pretty soon after that :-)
QVarLengthArray<float, 1> d(1);
for (int i=0; i<30; i++)
d.append(i);
}
QTEST_APPLESS_MAIN(tst_QVarLengthArray)
#include "tst_qvarlengtharray.moc"
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