Long live Qt 4.5!

1 files changed, 220 insertions, 0 deletions

diff --git a/tests/auto/qpixmapcache/tst_qpixmapcache.cpp b/tests/auto/qpixmapcache/tst_qpixmapcache.cpp
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+/****************************************************************************
+**
+** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
+** Contact: Qt Software Information (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 qt-sales@nokia.com.
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+
+#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);
+}
+
+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"