test: Moving tst_QMimeDatabase::inheritsPerformance() test

tst_QMimeDatabase::inheritsPerformance() is not an unit test but a
performance test, so moving it from 'tests/auto/corelib/mimetypes/qmimedatabase'
to 'tests/benchmarks/corelib/mimetypes/qmimedatabase'

Change-Id: I59e84f61559023659f101666683870f2ca1d2034
Reviewed-by: David Faure (KDE) <faure@kde.org>
Reviewed-by: Rohan McGovern <rohan.mcgovern@nokia.com>

tests/auto/corelib/mimetypes/qmimedatabase/tst_qmimedatabase.cpp

@@ -517,38 +517,6 @@ void tst_QMimeDatabase::allMimeTypes()
     }
 }
 
-void tst_QMimeDatabase::inheritsPerformance()
-{
-    // Check performance of inherits().
-    // This benchmark (which started in 2009 in kmimetypetest.cpp) uses 40 mimetypes.
-    QStringList mimeTypes; mimeTypes << QLatin1String("image/jpeg") << QLatin1String("image/png") << QLatin1String("image/tiff") << QLatin1String("text/plain") << QLatin1String("text/html");
-    mimeTypes += mimeTypes;
-    mimeTypes += mimeTypes;
-    mimeTypes += mimeTypes;
-    QCOMPARE(mimeTypes.count(), 40);
-    QMimeDatabase db;
-    QMimeType mime = db.mimeTypeForName(QString::fromLatin1("text/x-chdr"));
-    QVERIFY(mime.isValid());
-    QBENCHMARK {
-        QString match;
-        foreach (const QString &mt, mimeTypes) {
-            if (mime.inherits(mt)) {
-                match = mt;
-                // of course there would normally be a "break" here, but we're testing worse-case
-                // performance here
-            }
-        }
-        QCOMPARE(match, QString::fromLatin1("text/plain"));
-    }
-    // Numbers from 2011, in release mode:
-    // KDE 4.7 numbers: 0.21 msec / 494,000 ticks / 568,345 instr. loads per iteration
-    // QMimeBinaryProvider (with Qt 5): 0.16 msec / NA / 416,049 instr. reads per iteration
-    // QMimeXmlProvider (with Qt 5): 0.062 msec / NA / 172,889 instr. reads per iteration
-    //   (but the startup time is way higher)
-    // And memory usage is flat at 200K with QMimeBinaryProvider, while it peaks at 6 MB when
-    // parsing XML, and then keeps being around 4.5 MB for all the in-memory hashes.
-}
-
 void tst_QMimeDatabase::suffixes_data()
 {
     QTest::addColumn<QString>("mimeType");

tests/auto/corelib/mimetypes/qmimedatabase/tst_qmimedatabase.h

@@ -70,7 +70,6 @@ private slots:
     void mimeTypeForFileAndContent_data();
     void mimeTypeForFileAndContent();
     void allMimeTypes();
-    void inheritsPerformance();
     void suffixes_data();
     void suffixes();
     void knownSuffix();

tests/benchmarks/corelib/corelib.pro

@@ -2,6 +2,7 @@ TEMPLATE = subdirs
 SUBDIRS = \
         io \
         json \
+        mimetypes \
         kernel \
         thread \
         tools \

tests/benchmarks/corelib/mimetypes/mimetypes.pro

@@ -0,0 +1,3 @@
+TEMPLATE = subdirs
+SUBDIRS = \
+        qmimedatabase \

tests/benchmarks/corelib/mimetypes/qmimedatabase/main.cpp

@@ -0,0 +1,87 @@
+/****************************************************************************
+**
+** Copyright (C) 2012 Digia Plc and/or its subsidiary(-ies).
+** Contact: http://www.qt-project.org/legal
+**
+** This file is part of the test suite of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** Commercial License Usage
+** Licensees holding valid commercial Qt licenses may use this file in
+** accordance with the commercial license agreement provided with the
+** Software or, alternatively, in accordance with the terms contained in
+** a written agreement between you and Digia.  For licensing terms and
+** conditions see http://qt.digia.com/licensing.  For further information
+** use the contact form at http://qt.digia.com/contact-us.
+**
+** 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, Digia gives you certain additional
+** rights.  These rights are described in the Digia Qt LGPL Exception
+** version 1.1, 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.
+**
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#include <QtTest/QtTest>
+
+class tst_QMimeDatabase: public QObject
+{
+
+    Q_OBJECT
+
+private slots:
+    void inheritsPerformance();
+};
+
+void tst_QMimeDatabase::inheritsPerformance()
+{
+    // Check performance of inherits().
+    // This benchmark (which started in 2009 in kmimetypetest.cpp) uses 40 mimetypes.
+    QStringList mimeTypes;
+    mimeTypes << QLatin1String("image/jpeg") << QLatin1String("image/png") << QLatin1String("image/tiff") << QLatin1String("text/plain") << QLatin1String("text/html");
+    mimeTypes += mimeTypes;
+    mimeTypes += mimeTypes;
+    mimeTypes += mimeTypes;
+    QCOMPARE(mimeTypes.count(), 40);
+    QMimeDatabase db;
+    QMimeType mime = db.mimeTypeForName(QString::fromLatin1("text/x-chdr"));
+    QVERIFY(mime.isValid());
+    QBENCHMARK {
+        QString match;
+        foreach (const QString &mt, mimeTypes) {
+            if (mime.inherits(mt)) {
+                match = mt;
+                // of course there would normally be a "break" here, but we're testing worse-case
+                // performance here
+            }
+        }
+        QCOMPARE(match, QString::fromLatin1("text/plain"));
+    }
+    // Numbers from 2011, in release mode:
+    // KDE 4.7 numbers: 0.21 msec / 494,000 ticks / 568,345 instr. loads per iteration
+    // QMimeBinaryProvider (with Qt 5): 0.16 msec / NA / 416,049 instr. reads per iteration
+    // QMimeXmlProvider (with Qt 5): 0.062 msec / NA / 172,889 instr. reads per iteration
+    //   (but the startup time is way higher)
+    // And memory usage is flat at 200K with QMimeBinaryProvider, while it peaks at 6 MB when
+    // parsing XML, and then keeps being around 4.5 MB for all the in-memory hashes.
+}
+
+QTEST_MAIN(tst_QMimeDatabase)
+#include "main.moc"

tests/benchmarks/corelib/mimetypes/qmimedatabase/qmimedatabase.pro

@@ -0,0 +1,6 @@
+QT = core testlib
+
+TARGET  = tst_bench_qmimedatabase
+SOURCES = main.cpp
+
+DEFINES += QT_DISABLE_DEPRECATED_BEFORE=0