1 files changed, 272 insertions, 0 deletions
diff --git a/tests/benchmarks/corelib/kernel/qvariant/tst_qvariant.cpp b/tests/benchmarks/corelib/kernel/qvariant/tst_qvariant.cpp
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+++ b/tests/benchmarks/corelib/kernel/qvariant/tst_qvariant.cpp
@@ -0,0 +1,272 @@
+/****************************************************************************
+**
+** 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.
+**
+**
+**
+**
+**
+**
+**
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#include <QtCore>
+#include <QtGui/QPixmap>
+#include <qtest.h>
+
+#define ITERATION_COUNT 1e5
+
+class tst_qvariant : public QObject
+{
+    Q_OBJECT
+private slots:
+    void testBound();
+
+    void doubleVariantCreation();
+    void floatVariantCreation();
+    void rectVariantCreation();
+    void stringVariantCreation();
+    void pixmapVariantCreation();
+
+    void doubleVariantSetValue();
+    void floatVariantSetValue();
+    void rectVariantSetValue();
+    void stringVariantSetValue();
+
+    void doubleVariantAssignment();
+    void floatVariantAssignment();
+    void rectVariantAssignment();
+    void stringVariantAssignment();
+
+    void doubleVariantValue();
+    void floatVariantValue();
+    void rectVariantValue();
+    void stringVariantValue();
+
+    void createCoreType_data();
+    void createCoreType();
+    void createCoreTypeCopy_data();
+    void createCoreTypeCopy();
+};
+
+void tst_qvariant::testBound()
+{
+    qreal d = qreal(.5);
+    QBENCHMARK {
+        for(int i = 0; i < ITERATION_COUNT; ++i) {
+            d = qBound<qreal>(0, d, 1);
+        }
+    }
+}
+
+template <typename T>
+static void variantCreation(T val)
+{
+    QBENCHMARK {
+        for(int i = 0; i < ITERATION_COUNT; ++i) {
+            QVariant v(val);
+        }
+    }
+}
+
+void tst_qvariant::doubleVariantCreation()
+{
+    variantCreation<double>(0.0);
+}
+
+void tst_qvariant::floatVariantCreation()
+{
+    variantCreation<float>(0.0f);
+}
+
+void tst_qvariant::rectVariantCreation()
+{
+    variantCreation<QRect>(QRect(1, 2, 3, 4));
+}
+
+void tst_qvariant::stringVariantCreation()
+{
+    variantCreation<QString>(QString());
+}
+
+void tst_qvariant::pixmapVariantCreation()
+{
+    variantCreation<QPixmap>(QPixmap());
+}
+
+template <typename T>
+static void variantSetValue(T d)
+{
+    QVariant v;
+    QBENCHMARK {
+        for(int i = 0; i < ITERATION_COUNT; ++i) {
+            qVariantSetValue(v, d);
+        }
+    }
+}
+
+void tst_qvariant::doubleVariantSetValue()
+{
+    variantSetValue<double>(0.0);
+}
+
+void tst_qvariant::floatVariantSetValue()
+{
+    variantSetValue<float>(0.0f);
+}
+
+void tst_qvariant::rectVariantSetValue()
+{
+    variantSetValue<QRect>(QRect());
+}
+
+void tst_qvariant::stringVariantSetValue()
+{
+    variantSetValue<QString>(QString());
+}
+
+template <typename T>
+static void variantAssignment(T d)
+{
+    QVariant v;
+    QBENCHMARK {
+        for(int i = 0; i < ITERATION_COUNT; ++i) {
+            v = d;
+        }
+    }
+}
+
+void tst_qvariant::doubleVariantAssignment()
+{
+    variantAssignment<double>(0.0);
+}
+
+void tst_qvariant::floatVariantAssignment()
+{
+    variantAssignment<float>(0.0f);
+}
+
+void tst_qvariant::rectVariantAssignment()
+{
+    variantAssignment<QRect>(QRect());
+}
+
+void tst_qvariant::stringVariantAssignment()
+{
+    variantAssignment<QString>(QString());
+}
+
+void tst_qvariant::doubleVariantValue()
+{
+    QVariant v(0.0);
+    QBENCHMARK {
+        for(int i = 0; i < ITERATION_COUNT; ++i) {
+            v.toDouble();
+        }
+    }
+}
+
+void tst_qvariant::floatVariantValue()
+{
+    QVariant v(0.0f);
+    QBENCHMARK {
+        for(int i = 0; i < ITERATION_COUNT; ++i) {
+            v.toFloat();
+        }
+    }
+}
+
+void tst_qvariant::rectVariantValue()
+{
+    QVariant v(QRect(1,2,3,4));
+    QBENCHMARK {
+        for(int i = 0; i < ITERATION_COUNT; ++i) {
+            v.toRect();
+        }
+    }
+}
+
+void tst_qvariant::stringVariantValue()
+{
+    QVariant v = QString();
+    QBENCHMARK {
+        for(int i = 0; i < ITERATION_COUNT; ++i) {
+            v.toString();
+        }
+    }
+}
+
+void tst_qvariant::createCoreType_data()
+{
+    QTest::addColumn<int>("typeId");
+    for (int i = 0; i <= QMetaType::LastCoreType; ++i)
+        QTest::newRow(QMetaType::typeName(i)) << i;
+    for (int i = QMetaType::FirstCoreExtType; i <= QMetaType::LastCoreExtType; ++i)
+        QTest::newRow(QMetaType::typeName(i)) << i;
+}
+
+// Tests how fast a Qt core type can be default-constructed by a
+// QVariant. The purpose of this benchmark is to measure the overhead
+// of creating (and destroying) a QVariant compared to creating the
+// type directly.
+void tst_qvariant::createCoreType()
+{
+    QFETCH(int, typeId);
+    QBENCHMARK {
+        for (int i = 0; i < ITERATION_COUNT; ++i)
+            QVariant(typeId, (void *)0);
+    }
+}
+
+void tst_qvariant::createCoreTypeCopy_data()
+{
+    createCoreType_data();
+}
+
+// Tests how fast a Qt core type can be copy-constructed by a
+// QVariant. The purpose of this benchmark is to measure the overhead
+// of creating (and destroying) a QVariant compared to creating the
+// type directly.
+void tst_qvariant::createCoreTypeCopy()
+{
+    QFETCH(int, typeId);
+    QVariant other(typeId, (void *)0);
+    const void *copy = other.constData();
+    QBENCHMARK {
+        for (int i = 0; i < ITERATION_COUNT; ++i)
+            QVariant(typeId, copy);
+    }
+}
+
+QTEST_MAIN(tst_qvariant)
+
+#include "tst_qvariant.moc"