tests/benchmarks/corelib/io/qdir/tree/bench_qdir_tree.cpp
changeset 19 fcece45ef507
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/tests/benchmarks/corelib/io/qdir/tree/bench_qdir_tree.cpp	Mon May 03 13:17:34 2010 +0300
@@ -0,0 +1,173 @@
+/****************************************************************************
+**
+** 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 module 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 <QtTest/QTest>
+
+#include <QDirIterator>
+#include <QFile>
+#include <QString>
+#include <QStack>
+
+#include "../../../../../shared/filesystem.h"
+
+class bench_QDir_tree
+    : public QObject
+{
+    Q_OBJECT
+
+public:
+    bench_QDir_tree()
+        : prefix("./test-tree/")
+    {
+    }
+
+private:
+    QByteArray prefix;
+
+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;
+        Q_FOREVER {
+            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();
+            line.chop(1);
+            stack.push(line);
+
+            line = prefix;
+            Q_FOREACH(const QByteArray &pathElement, stack)
+                line += pathElement;
+
+            if (line.endsWith('/'))
+                QVERIFY(fs.createDirectory(line));
+            else
+                QVERIFY(fs.createFile(line));
+
+            line.clear();
+        }
+    }
+
+    void fileSearch_data() const
+    {
+        QTest::addColumn<QStringList>("nameFilters");
+        QTest::addColumn<int>("filter");
+        QTest::addColumn<int>("entryCount");
+
+        QTest::newRow("*.cpp") << QStringList("*.cpp")
+            << int(QDir::Files)
+            << 3813;
+
+        QTest::newRow("executables") << QStringList("*")
+            << int(QDir::Executable | QDir::Files | QDir::AllDirs | QDir::NoDotAndDotDot)
+            << 543;
+    }
+
+    void fileSearch() const
+    {
+        QFETCH(QStringList, nameFilters);
+        QFETCH(int, filter);
+        QFETCH(int, entryCount);
+
+        int count = 0;
+        QBENCHMARK {
+            // Recursive directory iteration
+            QDirIterator iterator(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(prefix,
+                    QDir::AllEntries | QDir::NoDotAndDotDot | QDir::Hidden | QDir::System,
+                    QDirIterator::Subdirectories | QDirIterator::FollowSymlinks);
+
+            while (iterator.hasNext()) {
+                iterator.next();
+                ++count;
+            }
+
+            QCOMPARE(count, 11963);
+        }
+
+        QCOMPARE(count, 11963);
+    }
+
+private:
+    FileSystem fs;
+};
+
+QTEST_MAIN(bench_QDir_tree)
+#include "bench_qdir_tree.moc"