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#include <QtTest/QtTest>
#include<dirent.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <unistd.h>
class Test : public QObject{
Q_OBJECT
public slots:
void initTestCase() {
QDir testdir = QDir::tempPath();
const QString subfolder_name = QLatin1String("test_speed");
QVERIFY(testdir.mkdir(subfolder_name));
QVERIFY(testdir.cd(subfolder_name));
for (uint i=0; i<10000; ++i) {
QFile file(testdir.absolutePath() + "/testfile_" + QString::number(i));
file.open(QIODevice::WriteOnly);
}
}
void cleanupTestCase() {
{
QDir testdir(QDir::tempPath() + QLatin1String("/test_speed"));
foreach (const QString &filename, testdir.entryList()) {
testdir.remove(filename);
}
}
const QDir temp = QDir(QDir::tempPath());
temp.rmdir(QLatin1String("test_speed"));
}
private slots:
void sizeSpeed() {
QDir testdir(QDir::tempPath() + QLatin1String("/test_speed"));
QBENCHMARK {
QFileInfoList fileInfoList = testdir.entryInfoList(QDir::Files, QDir::Unsorted);
foreach (const QFileInfo &fileInfo, fileInfoList) {
fileInfo.isDir();
fileInfo.size();
}
}
}
void sizeSpeedWithoutFilter() {
QDir testdir(QDir::tempPath() + QLatin1String("/test_speed"));
QBENCHMARK {
QFileInfoList fileInfoList = testdir.entryInfoList(QDir::NoFilter, QDir::Unsorted);
foreach (const QFileInfo &fileInfo, fileInfoList) {
fileInfo.size();
}
}
}
void sizeSpeedWithoutFileInfoList() {
QDir testdir(QDir::tempPath() + QLatin1String("/test_speed"));
testdir.setSorting(QDir::Unsorted);
QBENCHMARK {
QStringList fileList = testdir.entryList(QDir::NoFilter, QDir::Unsorted);
foreach (const QString &filename, fileList) {
QFileInfo fileInfo(filename);
fileInfo.size();
}
}
}
void iDontWantAnyStat() {
QDir testdir(QDir::tempPath() + QLatin1String("/test_speed"));
testdir.setSorting(QDir::Unsorted);
testdir.setFilter(QDir::AllEntries | QDir::System | QDir::Hidden);
QBENCHMARK {
QStringList fileList = testdir.entryList(QDir::NoFilter, QDir::Unsorted);
foreach (const QString &filename, fileList) {
}
}
}
#ifndef Q_OS_WIN
void testLowLevel() {
QDir testdir(QDir::tempPath() + QLatin1String("/test_speed"));
DIR *dir = opendir(qPrintable(testdir.absolutePath()));
QVERIFY(!chdir(qPrintable(testdir.absolutePath())));
QBENCHMARK {
struct dirent *item = readdir(dir);
while (item) {
char *fileName = item->d_name;
struct stat fileStat;
QVERIFY(!stat(fileName, &fileStat));
item = readdir(dir);
}
}
closedir(dir);
}
#endif
};
QTEST_MAIN(Test)
#include "tst_qdir.moc"
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