1 files changed, 521 insertions, 0 deletions
diff --git a/tests/auto/qpixmapcache/tst_qpixmapcache.cpp b/tests/auto/qpixmapcache/tst_qpixmapcache.cpp
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+++ b/tests/auto/qpixmapcache/tst_qpixmapcache.cpp
@@ -0,0 +1,521 @@
+/****************************************************************************
+**
+** Copyright (C) 2011 Nokia Corporation and/or its subsidiary(-ies).
+** All rights reserved.
+** 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.
+**
+**
+**
+**
+**
+**
+**
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#define Q_TEST_QPIXMAPCACHE
+
+#include <QtTest/QtTest>
+
+
+#include <qpixmapcache.h>
+#include "../../../src/gui/image/qpixmapcache_p.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 replace();
+    void remove();
+    void clear();
+    void pixmapKey();
+    void noLeak();
+};
+
+static QPixmapCache::KeyData* getPrivate(QPixmapCache::Key &key)
+{
+    return (*reinterpret_cast<QPixmapCache::KeyData**>(&key));
+}
+
+static QPixmapCache::KeyData** getPrivateRef(QPixmapCache::Key &key)
+{
+    return (reinterpret_cast<QPixmapCache::KeyData**>(&key));
+}
+
+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;
+
+    //The int part of the API
+    p1 = new QPixmap(2, 3);
+    QPixmapCache::Key key = QPixmapCache::insert(*p1);
+    QVERIFY(QPixmapCache::find(key, p1) != 0);
+    delete p1;
+
+    QPixmapCache::setCacheLimit(0);
+    QVERIFY(QPixmapCache::find(key, p1) == 0);
+
+    p1 = new QPixmap(2, 3);
+    QPixmapCache::setCacheLimit(1000);
+    QPixmapCache::replace(key, *p1);
+    QVERIFY(QPixmapCache::find(key, p1) == 0);
+
+    delete p1;
+
+    //Let check if keys are released when the pixmap cache is
+    //full or has been flushed.
+    QPixmapCache::clear();
+    p1 = new QPixmap(2, 3);
+    key = QPixmapCache::insert(*p1);
+    QVERIFY(QPixmapCache::find(key, p1) != 0);
+    p1->detach(); // dectach so that the cache thinks no-one is using it.
+    QPixmapCache::setCacheLimit(0);
+    QVERIFY(QPixmapCache::find(key, p1) == 0);
+    QPixmapCache::setCacheLimit(1000);
+    key = QPixmapCache::insert(*p1);
+    QCOMPARE(getPrivate(key)->isValid, true);
+    QCOMPARE(getPrivate(key)->key, 1);
+
+    delete p1;
+
+    //Let check if removing old entries doesn't let you get
+    // wrong pixmaps
+    QPixmapCache::clear();
+    QPixmap p2;
+    p1 = new QPixmap(2, 3);
+    key = QPixmapCache::insert(*p1);
+    QVERIFY(QPixmapCache::find(key, &p2) != 0);
+    //we flush the cache
+    p1->detach();
+    p2.detach();
+    QPixmapCache::setCacheLimit(0);
+    QPixmapCache::setCacheLimit(1000);
+    QPixmapCache::Key key2 = QPixmapCache::insert(*p1);
+    QCOMPARE(getPrivate(key2)->key, 1);
+    QVERIFY(QPixmapCache::find(key, &p2) == 0);
+    QVERIFY(QPixmapCache::find(key2, &p2) != 0);
+    QCOMPARE(p2, *p1);
+
+    delete p1;
+
+    //Here we simulate the flushing when the app is idle
+    QPixmapCache::clear();
+    QPixmapCache::setCacheLimit(originalCacheLimit);
+    p1 = new QPixmap(300, 300);
+    key = QPixmapCache::insert(*p1);
+    p1->detach();
+    QCOMPARE(getPrivate(key)->key, 1);
+    key2 = QPixmapCache::insert(*p1);
+    p1->detach();
+    key2 = QPixmapCache::insert(*p1);
+    p1->detach();
+    QPixmapCache::Key key3 = QPixmapCache::insert(*p1);
+    p1->detach();
+    QPixmapCache::flushDetachedPixmaps();
+    key2 = QPixmapCache::insert(*p1);
+    QCOMPARE(getPrivate(key2)->key, 1);
+    //This old key is not valid anymore after the flush
+    QCOMPARE(getPrivate(key)->isValid, false);
+    QVERIFY(QPixmapCache::find(key, &p2) == 0);
+    delete p1;
+}
+
+void tst_QPixmapCache::find()
+{
+    QPixmap p1(10, 10);
+    p1.fill(Qt::red);
+    QVERIFY(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);
+
+    //The int part of the API
+    QPixmapCache::Key key = QPixmapCache::insert(p1);
+
+    QVERIFY(QPixmapCache::find(key, &p2));
+    QCOMPARE(p2.width(), 10);
+    QCOMPARE(p2.height(), 10);
+    QCOMPARE(p1, p2);
+
+    QPixmapCache::clear();
+    QPixmapCache::setCacheLimit(128);
+
+    QPixmap p4(10,10);
+    key = QPixmapCache::insert(p4);
+    p4.detach();
+
+    QPixmap p5(10,10);
+    QList<QPixmapCache::Key> keys;
+    for (int i = 0; i < 4000; ++i)
+        QPixmapCache::insert(p5);
+
+    //at that time the first key has been erase because no more place in the cache
+    QVERIFY(QPixmapCache::find(key, &p1) == 0);
+    QCOMPARE(getPrivate(key)->isValid, false);
+}
+
+void tst_QPixmapCache::insert()
+{
+    QPixmap p1(10, 10);
+    p1.fill(Qt::red);
+
+    QPixmap p2(10, 10);
+    p2.fill(Qt::yellow);
+
+    // Calcuate estimated num of items what fits to cache
+    int estimatedNum = (1024 * QPixmapCache::cacheLimit())
+                       / ((p1.width() * p1.height() * p1.depth()) / 8);
+
+    // Mare sure we will put enough items to reach the cache limit
+    const int numberOfKeys = estimatedNum + 1000;
+
+    // make sure it doesn't explode
+    for (int i = 0; i < numberOfKeys; ++i)
+        QPixmapCache::insert("0", p1);
+
+    // ditto
+    for (int j = 0; j < numberOfKeys; ++j) {
+        QPixmap p3(10, 10);
+        QPixmapCache::insert(QString::number(j), p3);
+    }
+
+    int num = 0;
+    for (int k = 0; k < numberOfKeys; ++k) {
+        if (QPixmapCache::find(QString::number(k)))
+            ++num;
+    }
+
+    if (QPixmapCache::find("0"))
+        ++num;
+
+    QVERIFY(num <= estimatedNum);
+    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());
+
+    //The int part of the API
+    // make sure it doesn't explode
+    QList<QPixmapCache::Key> keys;
+    for (int i = 0; i < numberOfKeys; ++i) {
+        QPixmap p3(10,10);
+        keys.append(QPixmapCache::insert(p3));
+    }
+
+    num = 0;
+    for (int k = 0; k < numberOfKeys; ++k) {
+        if (QPixmapCache::find(keys.at(k), &p2))
+            ++num;
+    }
+
+    estimatedNum = (1024 * QPixmapCache::cacheLimit())
+                       / ((p1.width() * p1.height() * p1.depth()) / 8);
+    QVERIFY(num <= estimatedNum);
+}
+
+void tst_QPixmapCache::replace()
+{
+    //The int part of the API
+    QPixmap p1(10, 10);
+    p1.fill(Qt::red);
+
+    QPixmap p2(10, 10);
+    p2.fill(Qt::yellow);
+
+    QPixmapCache::Key key = QPixmapCache::insert(p1);
+    QCOMPARE(getPrivate(key)->isValid, true);
+
+    QPixmap p3;
+    QVERIFY(QPixmapCache::find(key, &p3) == 1);
+
+    QPixmapCache::replace(key, p2);
+
+    QVERIFY(QPixmapCache::find(key, &p3) == 1);
+    QCOMPARE(getPrivate(key)->isValid, true);
+    QCOMPARE(getPrivate(key)->key, 1);
+
+    QCOMPARE(p3.width(), 10);
+    QCOMPARE(p3.height(), 10);
+    QCOMPARE(p3, p2);
+
+    //Broken keys
+    QCOMPARE(QPixmapCache::replace(QPixmapCache::Key(), p2), false);
+}
+
+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);
+
+    //The int part of the API
+    QPixmapCache::clear();
+    p1.fill(Qt::red);
+    QPixmapCache::Key key = QPixmapCache::insert(p1);
+    p1.fill(Qt::yellow);
+
+    QVERIFY(QPixmapCache::find(key, &p2));
+    QVERIFY(p1.toImage() != p2.toImage());
+    QVERIFY(p1.toImage() == p1.toImage()); // sanity check
+
+    QPixmapCache::remove(key);
+    QVERIFY(QPixmapCache::find(key, &p1) == 0);
+
+    //Broken key
+    QPixmapCache::remove(QPixmapCache::Key());
+    QVERIFY(QPixmapCache::find(QPixmapCache::Key(), &p1) == 0);
+
+    //Test if keys are release
+    QPixmapCache::clear();
+    key = QPixmapCache::insert(p1);
+    QCOMPARE(getPrivate(key)->key, 1);
+    QPixmapCache::remove(key);
+    key = QPixmapCache::insert(p1);
+    QCOMPARE(getPrivate(key)->key, 1);
+
+    //Test if pixmaps are correctly deleted
+    QPixmapCache::clear();
+    key = QPixmapCache::insert(p1);
+    QCOMPARE(getPrivate(key)->key, 1);
+    QVERIFY(QPixmapCache::find(key, &p1) != 0);
+    QPixmapCache::remove(key);
+    QCOMPARE(p1.isDetached(), true);
+
+    //We mix both part of the API
+    QPixmapCache::clear();
+    p1.fill(Qt::red);
+    QPixmapCache::insert("red", p1);
+    key = QPixmapCache::insert(p1);
+    QPixmapCache::remove(key);
+    QVERIFY(QPixmapCache::find(key, &p1) == 0);
+    QVERIFY(QPixmapCache::find("red") != 0);
+}
+
+void tst_QPixmapCache::clear()
+{
+    QPixmap p1(10, 10);
+    p1.fill(Qt::red);
+
+    // Calcuate estimated num of items what fits to cache
+    int estimatedNum = (1024 * QPixmapCache::cacheLimit())
+                       / ((p1.width() * p1.height() * p1.depth()) / 8);
+
+    // Mare sure we will put enough items to reach the cache limit
+    const int numberOfKeys = estimatedNum + 1000;
+
+    for (int i = 0; i < numberOfKeys; ++i)
+        QVERIFY(QPixmapCache::find("x" + QString::number(i)) == 0);
+
+    for (int j = 0; j < numberOfKeys; ++j)
+        QPixmapCache::insert(QString::number(j), p1);
+
+    int num = 0;
+    for (int k = 0; k < numberOfKeys; ++k) {
+        if (QPixmapCache::find(QString::number(k), p1))
+            ++num;
+    }
+    QVERIFY(num > 0);
+
+    QPixmapCache::clear();
+
+    for (int k = 0; k < numberOfKeys; ++k)
+        QVERIFY(QPixmapCache::find(QString::number(k)) == 0);
+
+    //The int part of the API
+    QPixmap p2(10, 10);
+    p2.fill(Qt::red);
+
+    QList<QPixmapCache::Key> keys;
+    for (int k = 0; k < numberOfKeys; ++k)
+        keys.append(QPixmapCache::insert(p2));
+
+    QPixmapCache::clear();
+
+    for (int k = 0; k < numberOfKeys; ++k) {
+        QVERIFY(QPixmapCache::find(keys.at(k), &p1) == 0);
+        QCOMPARE(getPrivate(keys[k])->isValid, false);
+    }
+}
+
+void tst_QPixmapCache::pixmapKey()
+{
+    QPixmapCache::Key key;
+    //Default constructed keys have no d pointer unless
+    //we use them
+    QVERIFY(!getPrivate(key));
+    //Let's put a d pointer
+    QPixmapCache::KeyData** keyd = getPrivateRef(key);
+    *keyd = new QPixmapCache::KeyData;
+    QCOMPARE(getPrivate(key)->ref, 1);
+    QPixmapCache::Key key2;
+    //Let's put a d pointer
+    QPixmapCache::KeyData** key2d = getPrivateRef(key2);
+    *key2d = new QPixmapCache::KeyData;
+    QCOMPARE(getPrivate(key2)->ref, 1);
+    key = key2;
+    QCOMPARE(getPrivate(key2)->ref, 2);
+    QCOMPARE(getPrivate(key)->ref, 2);
+    QPixmapCache::Key key3;
+    //Let's put a d pointer
+    QPixmapCache::KeyData** key3d = getPrivateRef(key3);
+    *key3d = new QPixmapCache::KeyData;
+    QPixmapCache::Key key4 = key3;
+    QCOMPARE(getPrivate(key3)->ref, 2);
+    QCOMPARE(getPrivate(key4)->ref, 2);
+    key4 = key;
+    QCOMPARE(getPrivate(key4)->ref, 3);
+    QCOMPARE(getPrivate(key3)->ref, 1);
+    QPixmapCache::Key key5(key3);
+    QCOMPARE(getPrivate(key3)->ref, 2);
+    QCOMPARE(getPrivate(key5)->ref, 2);
+
+    //let test default constructed keys
+    QPixmapCache::Key key6;
+    QVERIFY(!getPrivate(key6));
+    QPixmapCache::Key key7;
+    QVERIFY(!getPrivate(key7));
+    key6 = key7;
+    QVERIFY(!getPrivate(key6));
+    QVERIFY(!getPrivate(key7));
+    QPixmapCache::Key key8(key7);
+    QVERIFY(!getPrivate(key8));
+}
+
+QT_BEGIN_NAMESPACE
+extern int q_QPixmapCache_keyHashSize();
+QT_END_NAMESPACE
+
+void tst_QPixmapCache::noLeak()
+{
+    QPixmapCache::Key key;
+
+    int oldSize = q_QPixmapCache_keyHashSize();
+    for (int i = 0; i < 100; ++i) {
+        QPixmap pm(128, 128);
+        pm.fill(Qt::transparent);
+        key = QPixmapCache::insert(pm);
+        QPixmapCache::remove(key);
+    }
+    int newSize = q_QPixmapCache_keyHashSize();
+
+    QCOMPARE(oldSize, newSize);
+}
+
+QTEST_MAIN(tst_QPixmapCache)
+#include "tst_qpixmapcache.moc"