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Diffstat (limited to 'tests/benchmarks/corelib/tools/qstring/main.cpp')
| -rw-r--r-- | tests/benchmarks/corelib/tools/qstring/main.cpp | 147 |
1 files changed, 147 insertions, 0 deletions
diff --git a/tests/benchmarks/corelib/tools/qstring/main.cpp b/tests/benchmarks/corelib/tools/qstring/main.cpp new file mode 100644 index 0000000..12826eb --- /dev/null +++ b/tests/benchmarks/corelib/tools/qstring/main.cpp @@ -0,0 +1,147 @@ +/**************************************************************************** +** +** 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 <QStringList> +#include <QFile> +#include <qtest.h> + +#ifdef Q_OS_SYMBIAN +// In Symbian OS test data is located in applications private dir +// Application private dir is default serach path for files, so SRCDIR can be set to empty +#define SRCDIR "" +#endif + +class tst_QString: public QObject +{ + Q_OBJECT +private slots: + void equals() const; + void equals_data() const; + void fromUtf8() const; +}; + +void tst_QString::equals() const +{ + QFETCH(QString, a); + QFETCH(QString, b); + + QBENCHMARK { + a == b; + } +} + +void tst_QString::equals_data() const +{ + static const struct { + ushort data[80]; + int dummy; // just to ensure 4-byte alignment + } data = { + { + 64, 64, 64, 64, 64, 64, 64, 64, + 64, 64, 64, 64, 64, 64, 64, 64, // 16 + 64, 64, 64, 64, 64, 64, 64, 64, + 64, 64, 64, 64, 64, 64, 64, 64, // 32 + 64, 64, 64, 64, 64, 64, 64, 64, + 64, 64, 64, 64, 64, 64, 64, 64, // 48 + 64, 64, 64, 64, 64, 64, 64, 64, + 64, 64, 64, 64, 64, 64, 64, 64, // 64 + 64, 64, 64, 64, 96, 96, 96, 96, + 64, 64, 96, 96, 96, 96, 96, 96 // 80 + }, 0 + }; + const QChar *ptr = reinterpret_cast<const QChar *>(data.data); + + QTest::addColumn<QString>("a"); + QTest::addColumn<QString>("b"); + QString base = QString::fromRawData(ptr, 64); + + QTest::newRow("different-length") << base << QString::fromRawData(ptr, 4); + QTest::newRow("same-string") << base << base; + QTest::newRow("same-data") << base << QString::fromRawData(ptr, 64); + + // try to avoid crossing a cache line (that is, at ptr[64]) + QTest::newRow("aligned-aligned-4n") + << QString::fromRawData(ptr, 60) << QString::fromRawData(ptr + 2, 60); + QTest::newRow("aligned-unaligned-4n") + << QString::fromRawData(ptr, 60) << QString::fromRawData(ptr + 1, 60); + QTest::newRow("unaligned-unaligned-4n") + << QString::fromRawData(ptr + 1, 60) << QString::fromRawData(ptr + 3, 60); + + QTest::newRow("aligned-aligned-4n+1") + << QString::fromRawData(ptr, 61) << QString::fromRawData(ptr + 2, 61); + QTest::newRow("aligned-unaligned-4n+1") + << QString::fromRawData(ptr, 61) << QString::fromRawData(ptr + 1, 61); + QTest::newRow("unaligned-unaligned-4n+1") + << QString::fromRawData(ptr + 1, 61) << QString::fromRawData(ptr + 3, 61); + + QTest::newRow("aligned-aligned-4n-1") + << QString::fromRawData(ptr, 59) << QString::fromRawData(ptr + 2, 59); + QTest::newRow("aligned-unaligned-4n-1") + << QString::fromRawData(ptr, 59) << QString::fromRawData(ptr + 1, 59); + QTest::newRow("unaligned-unaligned-4n-1") + << QString::fromRawData(ptr + 1, 59) << QString::fromRawData(ptr + 3, 59); + + QTest::newRow("aligned-aligned-2n") + << QString::fromRawData(ptr, 58) << QString::fromRawData(ptr + 2, 58); + QTest::newRow("aligned-unaligned-2n") + << QString::fromRawData(ptr, 58) << QString::fromRawData(ptr + 1, 58); + QTest::newRow("unaligned-unaligned-2n") + << QString::fromRawData(ptr + 1, 58) << QString::fromRawData(ptr + 3, 58); +} + +void tst_QString::fromUtf8() const +{ + QFile file(SRCDIR "utf-8.txt"); + if (!file.open(QFile::ReadOnly)) { + qFatal("Cannot open input file"); + return; + } + QByteArray data = file.readAll(); + const char *d = data.constData(); + int size = data.size(); + + QBENCHMARK { + QString::fromUtf8(d, size); + } +} + +QTEST_MAIN(tst_QString) + +#include "main.moc" |