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// Copyright (C) 2021 The Qt Company Ltd.
// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR GPL-3.0-only
#include <QtTest/QTest>
#include <QDirIterator>
#include <QFile>
#include <QString>
#include <QStack>
#include "../../../../../shared/filesystem.h"
class tst_QDir_tree
: public QObject
{
Q_OBJECT
public:
tst_QDir_tree()
: prefix("test-tree/"),
musicprefix(QLatin1String("music")),
photoprefix(QLatin1String("photos")),
sourceprefix(QLatin1String("source")),
musicsize(0),
photosize(0),
sourcesize(0)
{
}
private:
QByteArray prefix;
QString musicprefix;
QString photoprefix;
QString sourceprefix;
qint64 musicsize;
qint64 photosize;
qint64 sourcesize;
FileSystem fs; // Uses QTemporaryDir to tidy away file tree created.
private slots:
void initTestCase()
{
QFile list(":/4.6.0-list.txt");
QVERIFY(list.open(QIODevice::ReadOnly | QIODevice::Text));
QVERIFY(fs.createDirectory(prefix));
QStack<QByteArray> stack;
QByteArray line;
while (true) {
char ch;
if (!list.getChar(&ch))
break;
if (ch != ' ') {
line.append(ch);
continue;
}
int pop = 1;
if (!line.isEmpty())
pop = line.toInt();
while (pop) {
stack.pop();
--pop;
}
line = list.readLine().trimmed();
stack.push(line);
line = prefix;
for (const QByteArray &pathElement : std::as_const(stack))
line += pathElement;
if (line.endsWith('/'))
QVERIFY(fs.createDirectory(line));
else
QVERIFY(fs.createFile(line));
line.clear();
}
//Use case: music collection - 10 files in 100 directories (albums)
QVERIFY(fs.createDirectory(musicprefix));
for (int i=0;i<1000;i++) {
if ((i % 10) == 0)
QVERIFY(fs.createDirectory(QString("%1/directory%2").arg(musicprefix).arg(i/10)));
qint64 size = fs.createFileWithContent(QString("%1/directory%2/file%3").arg(musicprefix).arg(i/10).arg(i));
QVERIFY(size > 0);
musicsize += size;
}
//Use case: photos - 1000 files in 1 directory
QVERIFY(fs.createDirectory(photoprefix));
for (int i=0;i<1000;i++) {
qint64 size = fs.createFileWithContent(QString("%1/file%2").arg(photoprefix).arg(i));
QVERIFY(size > 0);
photosize += size;
}
//Use case: source - 10 files in 10 subdirectories in 10 directories (1000 total)
QVERIFY(fs.createDirectory(sourceprefix));
for (int i=0;i<1000;i++) {
if ((i % 100) == 0)
QVERIFY(fs.createDirectory(QString("%1/directory%2").arg(sourceprefix).arg(i/100)));
if ((i % 10) == 0)
QVERIFY(fs.createDirectory(QString("%1/directory%2/subdirectory%3").arg(sourceprefix).arg(i/100).arg(i/10)));
qint64 size = fs.createFileWithContent(QString("%1/directory%2/subdirectory%3/file%4").arg(sourceprefix).arg(i/100).arg(i/10).arg(i));
QVERIFY(size > 0);
sourcesize += size;
}
}
void fileSearch_data() const
{
QTest::addColumn<QStringList>("nameFilters");
QTest::addColumn<int>("filter");
QTest::addColumn<int>("entryCount");
QTest::newRow("*.cpp") << QStringList("*.cpp") << int(QDir::Files) << 3791;
QTest::newRow("executables")
<< QStringList("*")
<< int(QDir::Executable | QDir::Files | QDir::AllDirs | QDir::NoDotAndDotDot)
<< 536;
}
void fileSearch() const
{
QFETCH(QStringList, nameFilters);
QFETCH(int, filter);
QFETCH(int, entryCount);
int count = 0;
QBENCHMARK {
// Recursive directory iteration
QDirIterator iterator(fs.absoluteFilePath(prefix),
nameFilters, QDir::Filter(filter),
QDirIterator::Subdirectories | QDirIterator::FollowSymlinks);
count = 0;
while (iterator.hasNext()) {
iterator.next();
++count;
}
QCOMPARE(count, entryCount);
}
QCOMPARE(count, entryCount);
}
void traverseDirectory() const
{
int count = 0;
QBENCHMARK {
QDirIterator iterator(
fs.absoluteFilePath(prefix),
QDir::AllEntries | QDir::NoDotAndDotDot | QDir::Hidden | QDir::System,
QDirIterator::Subdirectories | QDirIterator::FollowSymlinks);
count = 0;
while (iterator.hasNext()) {
iterator.next();
++count;
}
QCOMPARE(count, 11906);
}
QCOMPARE(count, 11906);
}
void thousandFiles_data() const
{
QTest::addColumn<QString>("dirName");
QTest::addColumn<qint64>("expectedSize");
QTest::newRow("music") << musicprefix << musicsize;
QTest::newRow("photos") << photoprefix << photosize;
QTest::newRow("src") << sourceprefix << sourcesize;
}
void thousandFiles() const
{
QFETCH(QString, dirName);
QFETCH(qint64, expectedSize);
QBENCHMARK {
qint64 totalsize = 0;
int count = 0;
QDirIterator iter(fs.absoluteFilePath(dirName),
QDir::Files, QDirIterator::Subdirectories);
while(iter.hasNext()) {
count++;
totalsize += iter.nextFileInfo().size();
}
QCOMPARE(count, 1000);
QCOMPARE(totalsize, expectedSize);
}
}
};
QTEST_MAIN(tst_QDir_tree)
#include "tst_bench_qdir_tree.moc"
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