qt5base-lts/examples/qtestlib/tutorial5/benchmarking.cpp
Jani Heikkinen 2b75c156b6 Updated BSD licensed file headers
Change-Id: I6441ff931dbd33b698d762e6f6784898f3f60fe7
Reviewed-by: Oswald Buddenhagen <oswald.buddenhagen@theqtcompany.com>
2015-02-15 07:41:17 +00:00

137 lines
3.9 KiB
C++

/****************************************************************************
**
** Copyright (C) 2015 The Qt Company Ltd.
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** This file is part of the examples of the Qt Toolkit.
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#include <QtWidgets>
#include <qtest.h>
class TestBenchmark : public QObject
{
Q_OBJECT
private slots:
void simple();
void multiple_data();
void multiple();
void series_data();
void series();
};
//! [0]
void TestBenchmark::simple()
{
QString str1 = QLatin1String("This is a test string");
QString str2 = QLatin1String("This is a test string");
QCOMPARE(str1.localeAwareCompare(str2), 0);
QBENCHMARK {
str1.localeAwareCompare(str2);
}
}
//! [0]
//! [1]
void TestBenchmark::multiple_data()
{
QTest::addColumn<bool>("useLocaleCompare");
QTest::newRow("locale aware compare") << true;
QTest::newRow("standard compare") << false;
}
//! [1]
//! [2]
void TestBenchmark::multiple()
{
QFETCH(bool, useLocaleCompare);
QString str1 = QLatin1String("This is a test string");
QString str2 = QLatin1String("This is a test string");
int result;
if (useLocaleCompare) {
QBENCHMARK {
result = str1.localeAwareCompare(str2);
}
} else {
QBENCHMARK {
result = (str1 == str2);
}
}
Q_UNUSED(result);
}
//! [2]
//! [3]
void TestBenchmark::series_data()
{
QTest::addColumn<bool>("useLocaleCompare");
QTest::addColumn<int>("stringSize");
for (int i = 1; i < 10000; i += 2000) {
QByteArray size = QByteArray::number(i);
QTest::newRow(("locale aware compare--" + size).constData()) << true << i;
QTest::newRow(("standard compare--" + size).constData()) << false << i;
}
}
//! [4]
//! [5]
void TestBenchmark::series()
{
QFETCH(bool, useLocaleCompare);
QFETCH(int, stringSize);
QString str1 = QString().fill('A', stringSize);
QString str2 = QString().fill('A', stringSize);
int result;
if (useLocaleCompare) {
QBENCHMARK {
result = str1.localeAwareCompare(str2);
}
} else {
QBENCHMARK {
result = (str1 == str2);
}
}
Q_UNUSED(result);
}
//! [5]
QTEST_MAIN(TestBenchmark)
#include "benchmarking.moc"