/****************************************************************************+
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**+
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** Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies).+
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** All rights reserved.+
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** Contact: Nokia Corporation (qt-info@nokia.com)+
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**+
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** This file is part of the test suite of the Qt Toolkit.+
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**+
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** $QT_BEGIN_LICENSE:LGPL$+
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** No Commercial Usage+
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** This file contains pre-release code and may not be distributed.+
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** You may use this file in accordance with the terms and conditions+
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** contained in the Technology Preview License Agreement accompanying+
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** this package.+
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**+
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** GNU Lesser General Public License Usage+
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** Alternatively, this file may be used under the terms of the GNU Lesser+
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** General Public License version 2.1 as published by the Free Software+
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** Foundation and appearing in the file LICENSE.LGPL included in the+
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** packaging of this file.  Please review the following information to+
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** ensure the GNU Lesser General Public License version 2.1 requirements+
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** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.+
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**+
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** In addition, as a special exception, Nokia gives you certain additional+
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** rights.  These rights are described in the Nokia Qt LGPL Exception+
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** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.+
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**+
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** If you have questions regarding the use of this file, please contact+
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** Nokia at qt-info@nokia.com.+
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**+
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**+
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**+
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**+
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**+
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**+
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**+
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**+
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** $QT_END_LICENSE$+
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**+
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****************************************************************************/+
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+
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+
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#include <QtTest/QtTest>+
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+
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+
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#include <qpixmapcache.h>+
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#include "../../../src/gui/image/qpixmapcache_p.h"+
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+
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+
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//TESTED_CLASS=+
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//TESTED_FILES=+
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+
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class tst_QPixmapCache : public QObject+
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{+
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    Q_OBJECT+
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+
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public:+
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    tst_QPixmapCache();+
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    virtual ~tst_QPixmapCache();+
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+
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+
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public slots:+
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    void init();+
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private slots:+
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    void cacheLimit();+
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    void setCacheLimit();+
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    void find();+
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    void insert();+
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    void replace();+
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    void remove();+
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    void clear();+
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    void pixmapKey();+
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    void noLeak();+
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};+
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+
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static QPixmapCache::KeyData* getPrivate(QPixmapCache::Key &key)+
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{+
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    return (*reinterpret_cast<QPixmapCache::KeyData**>(&key));+
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}+
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+
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static QPixmapCache::KeyData** getPrivateRef(QPixmapCache::Key &key)+
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{+
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    return (reinterpret_cast<QPixmapCache::KeyData**>(&key));+
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}+
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+
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static int originalCacheLimit;+
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+
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tst_QPixmapCache::tst_QPixmapCache()+
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{+
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    originalCacheLimit = QPixmapCache::cacheLimit();+
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}+
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+
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tst_QPixmapCache::~tst_QPixmapCache()+
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{+
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}+
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+
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void tst_QPixmapCache::init()+
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{+
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    QPixmapCache::setCacheLimit(originalCacheLimit);+
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    QPixmapCache::clear();+
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}+
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+
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void tst_QPixmapCache::cacheLimit()+
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{+
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    // make sure the default is reasonable;+
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    // it was between 2048 and 10240 last time I looked at it+
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    QVERIFY(originalCacheLimit >= 1024 && originalCacheLimit <= 20480);+
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+
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    QPixmapCache::setCacheLimit(100);+
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    QCOMPARE(QPixmapCache::cacheLimit(), 100);+
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+
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    QPixmapCache::setCacheLimit(-50);+
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    QCOMPARE(QPixmapCache::cacheLimit(), -50);+
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}+
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+
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void tst_QPixmapCache::setCacheLimit()+
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{+
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    QPixmap *p1 = new QPixmap(2, 3);+
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    QPixmapCache::insert("P1", *p1);+
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    QVERIFY(QPixmapCache::find("P1") != 0);+
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    delete p1;+
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+
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    QPixmapCache::setCacheLimit(0);+
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    QVERIFY(QPixmapCache::find("P1") == 0);+
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+
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    p1 = new QPixmap(2, 3);+
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    QPixmapCache::setCacheLimit(1000);+
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    QPixmapCache::insert("P1", *p1);+
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    QVERIFY(QPixmapCache::find("P1") != 0);+
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+
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    delete p1;+
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+
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    //The int part of the API+
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    p1 = new QPixmap(2, 3);+
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    QPixmapCache::Key key = QPixmapCache::insert(*p1);+
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    QVERIFY(QPixmapCache::find(key, p1) != 0);+
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    delete p1;+
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+
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    QPixmapCache::setCacheLimit(0);+
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    QVERIFY(QPixmapCache::find(key, p1) == 0);+
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+
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    p1 = new QPixmap(2, 3);+
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    QPixmapCache::setCacheLimit(1000);+
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    QPixmapCache::replace(key, *p1);+
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    QVERIFY(QPixmapCache::find(key, p1) == 0);+
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+
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    delete p1;+
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+
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    //Let check if keys are released when the pixmap cache is+
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    //full or has been flushed.+
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    QPixmapCache::clear();+
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    p1 = new QPixmap(2, 3);+
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    key = QPixmapCache::insert(*p1);+
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    QVERIFY(QPixmapCache::find(key, p1) != 0);+
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    QPixmapCache::setCacheLimit(0);+
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    QVERIFY(QPixmapCache::find(key, p1) == 0);+
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    QPixmapCache::setCacheLimit(1000);+
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    key = QPixmapCache::insert(*p1);+
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    QCOMPARE(getPrivate(key)->isValid, true);+
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    QCOMPARE(getPrivate(key)->key, 1);+
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+
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    delete p1;+
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+
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    //Let check if removing old entries doesn't let you get+
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    // wrong pixmaps+
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    QPixmapCache::clear();+
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    QPixmap p2;+
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    p1 = new QPixmap(2, 3);+
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    key = QPixmapCache::insert(*p1);+
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    QVERIFY(QPixmapCache::find(key, &p2) != 0);+
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    //we flush the cache+
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    QPixmapCache::setCacheLimit(0);+
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    QPixmapCache::setCacheLimit(1000);+
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    QPixmapCache::Key key2 = QPixmapCache::insert(*p1);+
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    QCOMPARE(getPrivate(key2)->key, 1);+
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    QVERIFY(QPixmapCache::find(key, &p2) == 0);+
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    QVERIFY(QPixmapCache::find(key2, &p2) != 0);+
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    QCOMPARE(p2, *p1);+
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+
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    delete p1;+
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+
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    //Here we simulate the flushing when the app is idle+
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    /*QPixmapCache::clear();+
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    QPixmapCache::setCacheLimit(originalCacheLimit);+
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    p1 = new QPixmap(300, 300);+
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    key = QPixmapCache::insert(*p1);+
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    QCOMPARE(getPrivate(key)->key, 1);+
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    key2 = QPixmapCache::insert(*p1);+
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    key2 = QPixmapCache::insert(*p1);+
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    QPixmapCache::Key key3 = QPixmapCache::insert(*p1);+
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    QTest::qWait(32000);+
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    key2 = QPixmapCache::insert(*p1);+
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    QCOMPARE(getPrivate(key2)->key, 1);+
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    //This old key is not valid anymore after the flush+
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    QCOMPARE(getPrivate(key)->isValid, false);+
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    QVERIFY(QPixmapCache::find(key, &p2) == 0);+
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    delete p1;*/+
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}+
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+
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void tst_QPixmapCache::find()+
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{+
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    QPixmap p1(10, 10);+
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    p1.fill(Qt::red);+
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    QVERIFY(QPixmapCache::insert("P1", p1));+
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+
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    QPixmap p2;+
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    QVERIFY(QPixmapCache::find("P1", p2));+
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    QCOMPARE(p2.width(), 10);+
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    QCOMPARE(p2.height(), 10);+
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    QCOMPARE(p1, p2);+
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+
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    // obsolete+
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    QPixmap *p3 = QPixmapCache::find("P1");+
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    QVERIFY(p3);+
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    QCOMPARE(p1, *p3);+
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+
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    //The int part of the API+
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    QPixmapCache::Key key = QPixmapCache::insert(p1);+
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+
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    QVERIFY(QPixmapCache::find(key, &p2));+
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    QCOMPARE(p2.width(), 10);+
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    QCOMPARE(p2.height(), 10);+
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    QCOMPARE(p1, p2);+
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+
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    QPixmapCache::clear();+
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    QPixmapCache::setCacheLimit(128);+
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+
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    key = QPixmapCache::insert(p1);+
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+
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    //The int part of the API+
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    QList<QPixmapCache::Key> keys;+
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    for (int i = 0; i < 4000; ++i)+
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        QPixmapCache::insert(p1);+
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+
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    //at that time the first key has been erase because no more place in the cache+
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    QVERIFY(QPixmapCache::find(key, &p1) == 0);+
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    QCOMPARE(getPrivate(key)->isValid, false);+
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}+
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+
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void tst_QPixmapCache::insert()+
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{+
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    QPixmap p1(10, 10);+
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    p1.fill(Qt::red);+
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+
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    QPixmap p2(10, 10);+
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    p2.fill(Qt::yellow);+
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+
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    // Calcuate estimated num of items what fits to cache+
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    int estimatedNum = (1024 * QPixmapCache::cacheLimit())+
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                       / ((p1.width() * p1.height() * p1.depth()) / 8);+
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+
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    // Mare sure we will put enough items to reach the cache limit+
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    const int numberOfKeys = estimatedNum + 1000;+
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+
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    // make sure it doesn't explode+
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    for (int i = 0; i < numberOfKeys; ++i)+
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        QPixmapCache::insert("0", p1);+
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+
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    // ditto+
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    for (int j = 0; j < numberOfKeys; ++j)+
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        QPixmapCache::insert(QString::number(j), p1);+
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+
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    int num = 0;+
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    for (int k = 0; k < numberOfKeys; ++k) {+
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        if (QPixmapCache::find(QString::number(k)))+
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            ++num;+
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    }+
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+
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    if (QPixmapCache::find("0"))+
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        ++num;+
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+
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    QVERIFY(num <= estimatedNum);+
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    QPixmap p3;+
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    QPixmapCache::insert("null", p3);+
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+
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    QPixmap c1(10, 10);+
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    c1.fill(Qt::yellow);+
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    QPixmapCache::insert("custom", c1);+
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    QVERIFY(!c1.isDetached());+
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    QPixmap c2(10, 10);+
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    c2.fill(Qt::red);+
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    QPixmapCache::insert("custom", c2);+
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    //We have deleted the old pixmap in the cache for the same key+
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    QVERIFY(c1.isDetached());+
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+
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    //The int part of the API+
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    // make sure it doesn't explode+
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    QList<QPixmapCache::Key> keys;+
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    for (int i = 0; i < numberOfKeys; ++i)+
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        keys.append(QPixmapCache::insert(p1));+
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+
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    num = 0;+
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    for (int k = 0; k < numberOfKeys; ++k) {+
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        if (QPixmapCache::find(keys.at(k), &p2))+
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            ++num;+
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    }+
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+
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    estimatedNum = (1024 * QPixmapCache::cacheLimit())+
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                       / ((p1.width() * p1.height() * p1.depth()) / 8);+
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    QVERIFY(num <= estimatedNum);+
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}+
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+
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void tst_QPixmapCache::replace()+
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{+
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    //The int part of the API+
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    QPixmap p1(10, 10);+
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    p1.fill(Qt::red);+
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+
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    QPixmap p2(10, 10);+
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    p2.fill(Qt::yellow);+
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+
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    QPixmapCache::Key key = QPixmapCache::insert(p1);+
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    QCOMPARE(getPrivate(key)->isValid, true);+
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+
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    QPixmap p3;+
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    QVERIFY(QPixmapCache::find(key, &p3) == 1);+
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+
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    QPixmapCache::replace(key, p2);+
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+
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    QVERIFY(QPixmapCache::find(key, &p3) == 1);+
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    QCOMPARE(getPrivate(key)->isValid, true);+
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    QCOMPARE(getPrivate(key)->key, 1);+
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+
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    QCOMPARE(p3.width(), 10);+
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    QCOMPARE(p3.height(), 10);+
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    QCOMPARE(p3, p2);+
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+
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    //Broken keys+
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    QCOMPARE(QPixmapCache::replace(QPixmapCache::Key(), p2), false);+
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}+
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+
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void tst_QPixmapCache::remove()+
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{+
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    QPixmap p1(10, 10);+
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    p1.fill(Qt::red);+
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+
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    QPixmapCache::insert("red", p1);+
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    p1.fill(Qt::yellow);+
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+
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    QPixmap p2;+
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    QVERIFY(QPixmapCache::find("red", p2));+
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    QVERIFY(p1.toImage() != p2.toImage());+
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    QVERIFY(p1.toImage() == p1.toImage()); // sanity check+
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+
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    QPixmapCache::remove("red");+
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    QVERIFY(QPixmapCache::find("red") == 0);+
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    QPixmapCache::remove("red");+
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    QVERIFY(QPixmapCache::find("red") == 0);+
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+
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    QPixmapCache::remove("green");+
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    QVERIFY(QPixmapCache::find("green") == 0);+
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+
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    //The int part of the API+
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    QPixmapCache::clear();+
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    p1.fill(Qt::red);+
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    QPixmapCache::Key key = QPixmapCache::insert(p1);+
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    p1.fill(Qt::yellow);+
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+
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    QVERIFY(QPixmapCache::find(key, &p2));+
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    QVERIFY(p1.toImage() != p2.toImage());+
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    QVERIFY(p1.toImage() == p1.toImage()); // sanity check+
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+
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    QPixmapCache::remove(key);+
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    QVERIFY(QPixmapCache::find(key, &p1) == 0);+
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+
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    //Broken key+
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    QPixmapCache::remove(QPixmapCache::Key());+
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    QVERIFY(QPixmapCache::find(QPixmapCache::Key(), &p1) == 0);+
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+
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    //Test if keys are release+
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    QPixmapCache::clear();+
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    key = QPixmapCache::insert(p1);+
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    QCOMPARE(getPrivate(key)->key, 1);+
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    QPixmapCache::remove(key);+
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    key = QPixmapCache::insert(p1);+
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    QCOMPARE(getPrivate(key)->key, 1);+
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+
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    //Test if pixmaps are correctly deleted+
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    QPixmapCache::clear();+
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    key = QPixmapCache::insert(p1);+
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    QCOMPARE(getPrivate(key)->key, 1);+
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    QVERIFY(QPixmapCache::find(key, &p1) != 0);+
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    QPixmapCache::remove(key);+
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    QCOMPARE(p1.isDetached(), true);+
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+
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    //We mix both part of the API+
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    QPixmapCache::clear();+
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    p1.fill(Qt::red);+
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    QPixmapCache::insert("red", p1);+
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    key = QPixmapCache::insert(p1);+
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    QPixmapCache::remove(key);+
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    QVERIFY(QPixmapCache::find(key, &p1) == 0);+
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    QVERIFY(QPixmapCache::find("red") != 0);+
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}+
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+
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void tst_QPixmapCache::clear()+
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{+
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    QPixmap p1(10, 10);+
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    p1.fill(Qt::red);+
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+
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    // Calcuate estimated num of items what fits to cache+
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    int estimatedNum = (1024 * QPixmapCache::cacheLimit())+
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                       / ((p1.width() * p1.height() * p1.depth()) / 8);+
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+
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    // Mare sure we will put enough items to reach the cache limit+
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    const int numberOfKeys = estimatedNum + 1000;+
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+
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    for (int i = 0; i < numberOfKeys; ++i)+
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        QVERIFY(QPixmapCache::find("x" + QString::number(i)) == 0);+
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+
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    for (int j = 0; j < numberOfKeys; ++j)+
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        QPixmapCache::insert(QString::number(j), p1);+
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+
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    int num = 0;+
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    for (int k = 0; k < numberOfKeys; ++k) {+
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        if (QPixmapCache::find(QString::number(k), p1))+
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            ++num;+
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    }+
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    QVERIFY(num > 0);+
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+
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    QPixmapCache::clear();+
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+
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    for (int k = 0; k < numberOfKeys; ++k)+
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        QVERIFY(QPixmapCache::find(QString::number(k)) == 0);+
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+
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    //The int part of the API+
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    QPixmap p2(10, 10);+
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    p2.fill(Qt::red);+
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+
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    QList<QPixmapCache::Key> keys;+
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    for (int k = 0; k < numberOfKeys; ++k)+
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        keys.append(QPixmapCache::insert(p2));+
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+
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    QPixmapCache::clear();+
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+
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    for (int k = 0; k < numberOfKeys; ++k) {+
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        QVERIFY(QPixmapCache::find(keys.at(k), &p1) == 0);+
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        QCOMPARE(getPrivate(keys[k])->isValid, false);+
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    }+
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}+
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+
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void tst_QPixmapCache::pixmapKey()+
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{+
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    QPixmapCache::Key key;+
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    //Default constructed keys have no d pointer unless+
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    //we use them+
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    QVERIFY(!getPrivate(key));+
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    //Let's put a d pointer+
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    QPixmapCache::KeyData** keyd = getPrivateRef(key);+
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    *keyd = new QPixmapCache::KeyData;+
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    QCOMPARE(getPrivate(key)->ref, 1);+
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    QPixmapCache::Key key2;+
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    //Let's put a d pointer+
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    QPixmapCache::KeyData** key2d = getPrivateRef(key2);+
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    *key2d = new QPixmapCache::KeyData;+
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    QCOMPARE(getPrivate(key2)->ref, 1);+
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    key = key2;+
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    QCOMPARE(getPrivate(key2)->ref, 2);+
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    QCOMPARE(getPrivate(key)->ref, 2);+
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    QPixmapCache::Key key3;+
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    //Let's put a d pointer+
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    QPixmapCache::KeyData** key3d = getPrivateRef(key3);+
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    *key3d = new QPixmapCache::KeyData;+
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    QPixmapCache::Key key4 = key3;+
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    QCOMPARE(getPrivate(key3)->ref, 2);+
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    QCOMPARE(getPrivate(key4)->ref, 2);+
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    key4 = key;+
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    QCOMPARE(getPrivate(key4)->ref, 3);+
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    QCOMPARE(getPrivate(key3)->ref, 1);+
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    QPixmapCache::Key key5(key3);+
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    QCOMPARE(getPrivate(key3)->ref, 2);+
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    QCOMPARE(getPrivate(key5)->ref, 2);+
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+
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    //let test default constructed keys+
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    QPixmapCache::Key key6;+
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    QVERIFY(!getPrivate(key6));+
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    QPixmapCache::Key key7;+
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    QVERIFY(!getPrivate(key7));+
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    key6 = key7;+
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    QVERIFY(!getPrivate(key6));+
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    QVERIFY(!getPrivate(key7));+
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    QPixmapCache::Key key8(key7);+
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    QVERIFY(!getPrivate(key8));+
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}+
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+
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//QTP: remove temporarily to get the code compiled.+
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// The following function is implemented in qpixmapcache.cpp in GUI but export for +
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// auto test only with marco Q_AUTOTEST_EXPORT+
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+
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//extern int q_QPixmapCache_keyHashSize();+
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+
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void tst_QPixmapCache::noLeak()+
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{+
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    QPixmapCache::Key key;+
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+
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    int oldSize = 0;//q_QPixmapCache_keyHashSize();+
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    for (int i = 0; i < 100; ++i) {+
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        QPixmap pm(128, 128);+
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        pm.fill(Qt::transparent);+
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        key = QPixmapCache::insert(pm);+
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        QPixmapCache::remove(key);+
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    }+
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    int newSize = 0;//q_QPixmapCache_keyHashSize();+
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+
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    QCOMPARE(oldSize, newSize);+
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}+
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+
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QTEST_MAIN(tst_QPixmapCache)+
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#include "tst_qpixmapcache.moc"+
−