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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 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 <qpixmapcache.h>
//TESTED_CLASS=
//TESTED_FILES=
class tst_QPixmapCache : public QObject
{
Q_OBJECT
public:
tst_QPixmapCache();
virtual ~tst_QPixmapCache();
public slots:
void init();
private slots:
void cacheLimit();
void setCacheLimit();
void find();
void insert();
void remove();
void clear();
};
static int originalCacheLimit;
tst_QPixmapCache::tst_QPixmapCache()
{
originalCacheLimit = QPixmapCache::cacheLimit();
}
tst_QPixmapCache::~tst_QPixmapCache()
{
}
void tst_QPixmapCache::init()
{
QPixmapCache::setCacheLimit(originalCacheLimit);
QPixmapCache::clear();
}
void tst_QPixmapCache::cacheLimit()
{
// make sure the default is reasonable;
// it was between 2048 and 10240 last time I looked at it
QVERIFY(originalCacheLimit >= 1024 && originalCacheLimit <= 20480);
QPixmapCache::setCacheLimit(100);
QCOMPARE(QPixmapCache::cacheLimit(), 100);
QPixmapCache::setCacheLimit(-50);
QCOMPARE(QPixmapCache::cacheLimit(), -50);
}
void tst_QPixmapCache::setCacheLimit()
{
QPixmap *p1 = new QPixmap(2, 3);
QPixmapCache::insert("P1", *p1);
QVERIFY(QPixmapCache::find("P1") != 0);
delete p1;
QPixmapCache::setCacheLimit(0);
QVERIFY(QPixmapCache::find("P1") == 0);
p1 = new QPixmap(2, 3);
QPixmapCache::setCacheLimit(1000);
QPixmapCache::insert("P1", *p1);
QVERIFY(QPixmapCache::find("P1") != 0);
delete p1;
}
void tst_QPixmapCache::find()
{
QPixmap p1(10, 10);
p1.fill(Qt::red);
QPixmapCache::insert("P1", p1);
QPixmap p2;
QVERIFY(QPixmapCache::find("P1", p2));
QCOMPARE(p2.width(), 10);
QCOMPARE(p2.height(), 10);
QCOMPARE(p1, p2);
// obsolete
QPixmap *p3 = QPixmapCache::find("P1");
QVERIFY(p3);
QCOMPARE(p1, *p3);
}
void tst_QPixmapCache::insert()
{
QPixmap p1(10, 10);
p1.fill(Qt::red);
QPixmap p2(10, 10);
p2.fill(Qt::yellow);
// make sure it doesn't explode
for (int i = 0; i < 20000; ++i)
QPixmapCache::insert("0", p1);
// ditto
for (int j = 0; j < 20000; ++j)
QPixmapCache::insert(QString::number(j), p1);
int num = 0;
for (int k = 0; k < 20000; ++k) {
if (QPixmapCache::find(QString::number(k)))
++num;
}
int estimatedNum = (1024 * QPixmapCache::cacheLimit())
/ ((p1.width() * p1.height() * p1.depth()) / 8);
QVERIFY(estimatedNum - 1 <= num <= estimatedNum + 1);
QPixmap p3;
QPixmapCache::insert("null", p3);
QPixmap c1(10, 10);
c1.fill(Qt::yellow);
QPixmapCache::insert("custom", c1);
QVERIFY(!c1.isDetached());
QPixmap c2(10, 10);
c2.fill(Qt::red);
QPixmapCache::insert("custom", c2);
//We have deleted the old pixmap in the cache for the same key
QVERIFY(c1.isDetached());
}
void tst_QPixmapCache::remove()
{
QPixmap p1(10, 10);
p1.fill(Qt::red);
QPixmapCache::insert("red", p1);
p1.fill(Qt::yellow);
QPixmap p2;
QVERIFY(QPixmapCache::find("red", p2));
QVERIFY(p1.toImage() != p2.toImage());
QVERIFY(p1.toImage() == p1.toImage()); // sanity check
QPixmapCache::remove("red");
QVERIFY(QPixmapCache::find("red") == 0);
QPixmapCache::remove("red");
QVERIFY(QPixmapCache::find("red") == 0);
QPixmapCache::remove("green");
QVERIFY(QPixmapCache::find("green") == 0);
}
void tst_QPixmapCache::clear()
{
QPixmap p1(10, 10);
p1.fill(Qt::red);
for (int i = 0; i < 20000; ++i) {
QVERIFY(QPixmapCache::find("x" + QString::number(i)) == 0);
}
for (int j = 0; j < 20000; ++j) {
QPixmapCache::insert(QString::number(j), p1);
}
int num = 0;
for (int k = 0; k < 20000; ++k) {
if (QPixmapCache::find(QString::number(k), p1))
++num;
}
QVERIFY(num > 0);
QPixmapCache::clear();
for (int k = 0; k < 20000; ++k) {
QVERIFY(QPixmapCache::find(QString::number(k)) == 0);
}
}
QTEST_MAIN(tst_QPixmapCache)
#include "tst_qpixmapcache.moc"
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