Initial import from the monolithic Qt.

This is the beginning of revision history for this module. If you
want to look at revision history older than this, please refer to the
Qt Git wiki for how to use Git history grafting. At the time of
writing, this wiki is located here:

http://qt.gitorious.org/qt/pages/GitIntroductionWithQt

If you have already performed the grafting and you don't see any
history beyond this commit, try running "git log" with the "--follow"
argument.

Branched from the monolithic repo, Qt master branch, at commit
896db169ea224deb96c59ce8af800d019de63f12

2 files changed, 450 insertions, 0 deletions

diff --git a/tests/benchmarks/network/access/qnetworkdiskcache/qnetworkdiskcache.pro b/tests/benchmarks/network/access/qnetworkdiskcache/qnetworkdiskcache.pro
new file mode 100644
index 0000000000..7f665b332e
--- /dev/null
+++ b/tests/benchmarks/network/access/qnetworkdiskcache/qnetworkdiskcache.pro
@@ -0,0 +1,15 @@
+load(qttest_p4)
+TEMPLATE = app
+TARGET = tst_bench_qnetworkdiskcache
+DEPENDPATH += .
+INCLUDEPATH += .
+
+QT += gui # for QDesktopServices
+QT += network testlib
+
+CONFIG += release
+
+# Input
+SOURCES += tst_qnetworkdiskcache.cpp
+
+
diff --git a/tests/benchmarks/network/access/qnetworkdiskcache/tst_qnetworkdiskcache.cpp b/tests/benchmarks/network/access/qnetworkdiskcache/tst_qnetworkdiskcache.cpp
new file mode 100644
index 0000000000..55cbf55bed
--- /dev/null
+++ b/tests/benchmarks/network/access/qnetworkdiskcache/tst_qnetworkdiskcache.cpp
@@ -0,0 +1,435 @@
+/****************************************************************************
+**
+** Copyright (C) 2010 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.
+**
+**
+**
+**
+**
+**
+**
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#include <QNetworkDiskCache>
+#include <QNetworkCacheMetaData>
+#include <QDir>
+#include <QBuffer>
+#include <QTextStream>
+#include <QDebug>
+#include <QtTest/QtTest>
+#include <QIODevice>
+#include <QDesktopServices>
+
+
+
+enum Numbers { NumFakeCacheObjects   = 200,    //entries in pre-populated cache
+               NumInsertions  = 100,           //insertions to be timed
+               NumRemovals    = 100,           //removals to be timed
+               NumReadContent = 100,           //meta requests to be timed
+               HugeCacheLimit = 50*1024*1024,  // max size for a big cache
+               TinyCacheLimit = 1*512*1024}; //  max size for a tiny cache
+
+const QString fakeURLbase = "http://127.0.0.1/fake/";
+//fake HTTP body aka payload
+const QByteArray payload("Qt rocks!");
+
+class tst_qnetworkdiskcache : public QObject
+{
+    Q_OBJECT
+private:
+    void injectFakeData();
+    void insertOneItem();
+    bool isUrlCached(quint32 id);
+    void cleanRecursive(QString &path);
+    void cleanupCacheObject();
+    void initCacheObject();
+    QString cacheDir;
+    QNetworkDiskCache *cache;
+
+public slots:
+    void initTestCase();
+    void cleanupTestCase();
+
+private slots:
+
+    void timeInsertion_data();
+    void timeInsertion();
+    void timeRead_data();
+    void timeRead();
+    void timeRemoval_data();
+    void timeRemoval();
+
+    void timeExpiration_data();
+    void timeExpiration();
+};
+
+
+void tst_qnetworkdiskcache::initTestCase()
+{
+    cache = 0;
+}
+
+
+void tst_qnetworkdiskcache::cleanupTestCase()
+{
+    cleanupCacheObject();
+    cleanRecursive(cacheDir);
+}
+
+void tst_qnetworkdiskcache::timeInsertion_data()
+{
+    QTest::addColumn<QString>("cacheRootDirectory");
+
+    QString cacheLoc = QDesktopServices::storageLocation(QDesktopServices::CacheLocation);
+    QTest::newRow("QDesktopServices Cache Location") << cacheLoc;
+#ifdef Q_OS_SYMBIAN
+    if (QDir::drives().contains(QFileInfo("E:\\")))
+        QTest::newRow("Symbian E: drive") << cacheLoc.replace(0, 1, QString("E"));
+#endif
+
+}
+
+//This functions times an insert() operation.
+//You can run it after populating the cache with
+//fake data so that more realistic performance
+//estimates are obtained.
+void tst_qnetworkdiskcache::timeInsertion()
+{
+
+    QFETCH(QString, cacheRootDirectory);
+
+    cacheDir = QString( cacheRootDirectory + QDir::separator() + "man_qndc");
+    QDir d;
+    qDebug() << "Setting cache directory to = " << d.absoluteFilePath(cacheDir);
+
+    //Housekeeping
+    cleanRecursive(cacheDir); // slow op.
+    initCacheObject();
+
+    cache->setCacheDirectory(cacheDir);
+    cache->setMaximumCacheSize(qint64(HugeCacheLimit));
+    cache->clear();
+
+    //populate some fake data to simulate partially full cache
+    injectFakeData(); // SLOW
+
+    //Sanity-check that the first URL that we insert below isn't already in there.
+    QVERIFY(isUrlCached(NumFakeCacheObjects) == false);
+
+    // IMPORTANT: max cache size should be HugeCacheLimit, to avoid evictions below
+    //time insertion of previously-uncached URLs.
+    QBENCHMARK_ONCE {
+        for (quint32 i = NumFakeCacheObjects; i < (NumFakeCacheObjects + NumInsertions); i++) {
+            //prepare metata for url
+            QNetworkCacheMetaData meta;
+            QString fakeURL;
+            QTextStream stream(&fakeURL);
+            stream << fakeURLbase << i;
+            QUrl url(fakeURL);
+            meta.setUrl(url);
+            meta.setSaveToDisk(true);
+
+            //commit payload and metadata to disk
+            QIODevice *device = cache->prepare(meta);
+            device->write(payload);
+            cache->insert(device);
+        }
+    }
+
+    //SLOW cleanup
+    cleanupCacheObject();
+    cleanRecursive(cacheDir);
+
+}
+
+void tst_qnetworkdiskcache::timeRead_data()
+{
+    QTest::addColumn<QString>("cacheRootDirectory");
+
+    QString cacheLoc = QDesktopServices::storageLocation(QDesktopServices::CacheLocation);
+    QTest::newRow("QDesktopServices Cache Location") << cacheLoc;
+#ifdef Q_OS_SYMBIAN
+    if (QDir::drives().contains(QFileInfo("E:\\")))
+        QTest::newRow("Symbian E: drive") << cacheLoc.replace(0, 1, QString("E"));
+#endif
+
+}
+
+//Times metadata as well payload lookup
+// i.e metaData(), rawHeaders() and data()
+void tst_qnetworkdiskcache::timeRead()
+{
+
+    QFETCH(QString, cacheRootDirectory);
+
+    cacheDir = QString( cacheRootDirectory + QDir::separator() + "man_qndc");
+    QDir d;
+    qDebug() << "Setting cache directory to = " << d.absoluteFilePath(cacheDir);
+
+    //Housekeeping
+    cleanRecursive(cacheDir); // slow op.
+    initCacheObject();
+    cache->setCacheDirectory(cacheDir);
+    cache->setMaximumCacheSize(qint64(HugeCacheLimit));
+    cache->clear();
+
+    //populate some fake data to simulate partially full cache
+    injectFakeData();
+
+    //Entries in the cache should be > what we try to remove
+    QVERIFY(NumFakeCacheObjects > NumReadContent);
+
+    //time metadata lookup of previously inserted URL.
+    QBENCHMARK_ONCE {
+        for (quint32 i = 0; i < NumReadContent; i++) {
+            QString fakeURL;
+            QTextStream stream(&fakeURL);
+            stream << fakeURLbase << i;
+            QUrl url(fakeURL);
+
+            QNetworkCacheMetaData qndc = cache->metaData(url);
+            QVERIFY(qndc.isValid()); // we must have read the metadata
+
+            QNetworkCacheMetaData::RawHeaderList raw(qndc.rawHeaders());
+            QVERIFY(raw.size()); // we must have parsed the headers from the meta
+
+            QIODevice *iodevice(cache->data(url));
+            QVERIFY(iodevice);    //must not be NULL
+            iodevice->close();
+            delete iodevice;
+        }
+    }
+
+    //Cleanup (slow)
+    cleanupCacheObject();
+    cleanRecursive(cacheDir);
+
+}
+
+void tst_qnetworkdiskcache::timeRemoval_data()
+{
+    QTest::addColumn<QString>("cacheRootDirectory");
+
+    QString cacheLoc = QDesktopServices::storageLocation(QDesktopServices::CacheLocation);
+    QTest::newRow("QDesktopServices Cache Location") << cacheLoc;
+#ifdef Q_OS_SYMBIAN
+    if (QDir::drives().contains(QFileInfo("E:\\")))
+        QTest::newRow("Symbian E: drive") << cacheLoc.replace(0, 1, QString("E"));
+#endif
+
+}
+
+void tst_qnetworkdiskcache::timeRemoval()
+{
+
+    QFETCH(QString, cacheRootDirectory);
+
+    cacheDir = QString( cacheRootDirectory + QDir::separator() + "man_qndc");
+    QDir d;
+    qDebug() << "Setting cache directory to = " << d.absoluteFilePath(cacheDir);
+
+    //Housekeeping
+    initCacheObject();
+    cleanRecursive(cacheDir); // slow op.
+    cache->setCacheDirectory(cacheDir);
+    // Make max cache size HUGE, so that evictions don't happen below
+    cache->setMaximumCacheSize(qint64(HugeCacheLimit));
+    cache->clear();
+
+    //populate some fake data to simulate partially full cache
+    injectFakeData();
+
+    //Sanity-check that the URL is already in there somewhere
+    QVERIFY(isUrlCached(NumRemovals-1) == true);
+    //Entries in the cache should be > what we try to remove
+    QVERIFY(NumFakeCacheObjects > NumRemovals);
+
+    //time removal of previously-inserted URL.
+    QBENCHMARK_ONCE {
+        for (quint32 i = 0; i < NumRemovals; i++) {
+            QString fakeURL;
+            QTextStream stream(&fakeURL);
+            stream << fakeURLbase << i;
+            QUrl url(fakeURL);
+            cache->remove(url);
+        }
+    }
+
+    //Cleanup (slow)
+    cleanupCacheObject();
+    cleanRecursive(cacheDir);
+
+}
+
+void tst_qnetworkdiskcache::timeExpiration_data()
+{
+    QTest::addColumn<QString>("cacheRootDirectory");
+
+    QString cacheLoc = QDesktopServices::storageLocation(QDesktopServices::CacheLocation);
+    QTest::newRow("QDesktopServices Cache Location") << cacheLoc;
+#ifdef Q_OS_SYMBIAN
+    if (QDir::drives().contains(QFileInfo("E:\\")))
+        QTest::newRow("Symbian E: drive") << cacheLoc.replace(0, 1, QString("E"));
+#endif
+
+}
+void tst_qnetworkdiskcache::timeExpiration()
+{
+
+    QFETCH(QString, cacheRootDirectory);
+
+    cacheDir = QString( cacheRootDirectory + QDir::separator() + "man_qndc");
+    QDir d;
+    qDebug() << "Setting cache directory to = " << d.absoluteFilePath(cacheDir);
+
+    //Housekeeping
+    initCacheObject();
+    cleanRecursive(cacheDir); // slow op.
+    cache->setCacheDirectory(cacheDir);
+    // Make max cache size HUGE, so that evictions don't happen below
+    cache->setMaximumCacheSize(qint64(HugeCacheLimit));
+    cache->clear();
+
+    //populate some fake data to simulate partially full cache
+    injectFakeData();
+
+    //Sanity-check that the URL is already in there somewhere
+    QVERIFY(isUrlCached(NumRemovals-1) == true);
+    //Entries in the cache should be > what we try to remove
+    QVERIFY(NumFakeCacheObjects > NumRemovals);
+
+
+    //Set cache limit lower, so this force 1 round of eviction
+    cache->setMaximumCacheSize(qint64(TinyCacheLimit));
+
+    //time insertions of additional content, which is likely to internally cause evictions
+    QBENCHMARK_ONCE {
+        for (quint32 i = NumFakeCacheObjects; i < (NumFakeCacheObjects + NumInsertions); i++) {
+            //prepare metata for url
+            QNetworkCacheMetaData meta;
+            QString fakeURL;
+            QTextStream stream(&fakeURL);
+            stream << fakeURLbase << i;//codescanner::leave
+            QUrl url(fakeURL);
+            meta.setUrl(url);
+            meta.setSaveToDisk(true);
+
+            //commit payload and metadata to disk
+            QIODevice *device = cache->prepare(meta);
+            device->write(payload);
+            cache->insert(device); // this should trigger evictions, if TinyCacheLimit is small enough
+        }
+    }
+
+    //Cleanup (slow)
+    cleanupCacheObject();
+    cleanRecursive(cacheDir);
+
+}
+// This function simulates a partially or fully occupied disk cache
+// like a normal user of a cache might encounter is real-life browsing.
+// The point of this is to trigger degradation in file-system and media performance
+// that occur due to the quantity and layout of data.
+void tst_qnetworkdiskcache::injectFakeData()
+{
+
+    QNetworkCacheMetaData::RawHeaderList headers;
+    headers.append(qMakePair(QByteArray("X-TestHeader"),QByteArray("HeaderValue")));
+
+
+    //Prep cache dir with fake data using QNetworkDiskCache APIs
+    for (quint32 i = 0; i < NumFakeCacheObjects; i++) {
+
+        //prepare metata for url
+        QNetworkCacheMetaData meta;
+        QString fakeURL;
+        QTextStream stream(&fakeURL);
+        stream << fakeURLbase << i;
+        QUrl url(fakeURL);
+        meta.setUrl(url);
+        meta.setRawHeaders(headers);
+        meta.setSaveToDisk(true);
+
+        //commit payload and metadata to disk
+        QIODevice *device = cache->prepare(meta);
+        device->write(payload);
+        cache->insert(device);
+    }
+
+}
+
+
+// Checks if the fake URL #id is already cached or not.
+bool tst_qnetworkdiskcache::isUrlCached(quint32 id)
+{
+    QString str;
+    QTextStream stream(&str);
+    stream << fakeURLbase << id;
+    QUrl url(str);
+    QIODevice *iod = cache->data(url);
+    return ((iod == 0) ? false : true) ;
+
+}
+
+
+// Utility function for recursive directory cleanup.
+void tst_qnetworkdiskcache::cleanRecursive(QString &path)
+{
+    QDirIterator it(path, QDir::Files | QDir::NoDotAndDotDot, QDirIterator::Subdirectories);
+    while (it.hasNext()) {
+        QFile f(it.next());
+        bool err = f.remove();
+        Q_UNUSED(err);
+    }
+
+    QDirIterator it2(path, QDir::AllDirs | QDir::NoDotAndDotDot, QDirIterator::Subdirectories);
+    while (it2.hasNext()) {
+        QString s(it2.next());
+        QDir dir(s);
+        dir.rmdir(s);
+    }
+}
+
+void tst_qnetworkdiskcache::cleanupCacheObject()
+{
+    delete cache;
+    cache = 0;
+}
+
+void tst_qnetworkdiskcache::initCacheObject()
+{
+
+   cache = new QNetworkDiskCache();
+
+}
+QTEST_MAIN(tst_qnetworkdiskcache)
+#include "tst_qnetworkdiskcache.moc"