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Telegram/ThirdParty/kcoreaddons/autotests/kdirwatch_benchmarktest.cpp

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+/*
+    This file is part of the KDE libraries
+
+    SPDX-FileCopyrightText: 2009 David Faure <faure@kde.org>
+
+    SPDX-License-Identifier: LGPL-2.0-or-later
+*/
+
+#include <kdirwatch.h>
+
+#include <QDebug>
+#include <QDir>
+#include <QFileInfo>
+#include <QSignalSpy>
+#include <QTemporaryDir>
+#include <QTest>
+#include <QThread>
+#include <sys/stat.h>
+#ifdef Q_OS_UNIX
+#include <unistd.h> // ::link()
+#endif
+
+#include "config-tests.h"
+#include "kcoreaddons_debug.h"
+
+#include "kdirwatch_test_utils.h"
+
+using namespace KDirWatchTestUtils;
+
+class KDirWatch_UnitTest : public QObject
+{
+    Q_OBJECT
+public:
+    KDirWatch_UnitTest()
+    {
+        // Speed up the test by making the kdirwatch timer (to compress changes) faster
+        qputenv("KDIRWATCH_POLLINTERVAL", "50");
+        qputenv("KDIRWATCH_METHOD", KDIRWATCH_TEST_METHOD);
+        s_staticObjectUsingSelf();
+
+        m_path = m_tempDir.path() + QLatin1Char('/');
+        KDirWatch *dirW = &s_staticObject()->m_dirWatch;
+        qCDebug(KCOREADDONS_DEBUG) << "Using method" << methodToString(dirW->internalMethod());
+    }
+
+private Q_SLOTS: // test methods
+    void initTestCase()
+    {
+        QFileInfo pathInfo(m_path);
+        QVERIFY(pathInfo.isDir() && pathInfo.isWritable());
+
+        // By creating the files upfront, we save waiting a full second for an mtime change
+        createFile(m_path + QLatin1String("ExistingFile"));
+        createFile(m_path + QLatin1String("TestFile"));
+        createFile(m_path + QLatin1String("nested_0"));
+        createFile(m_path + QLatin1String("nested_1"));
+
+        s_staticObject()->m_dirWatch.addFile(m_path + QLatin1String("ExistingFile"));
+    }
+    void benchCreateTree();
+    void benchCreateWatcher();
+    void benchNotifyWatcher();
+
+private:
+    QTemporaryDir m_tempDir;
+    QString m_path;
+};
+
+QTEST_MAIN(KDirWatch_UnitTest)
+
+void KDirWatch_UnitTest::benchCreateTree()
+{
+#if !ENABLE_BENCHMARKS
+    QSKIP("Benchmarks are disabled in debug mode");
+#endif
+    QTemporaryDir dir;
+
+    QBENCHMARK {
+        createDirectoryTree(dir.path());
+    }
+}
+
+void KDirWatch_UnitTest::benchCreateWatcher()
+{
+#if !ENABLE_BENCHMARKS
+    QSKIP("Benchmarks are disabled in debug mode");
+#endif
+    QTemporaryDir dir;
+    createDirectoryTree(dir.path());
+
+    QBENCHMARK {
+        KDirWatch watch;
+        watch.addDir(dir.path(), KDirWatch::WatchSubDirs | KDirWatch::WatchFiles);
+    }
+}
+
+void KDirWatch_UnitTest::benchNotifyWatcher()
+{
+#if !ENABLE_BENCHMARKS
+    QSKIP("Benchmarks are disabled in debug mode");
+#endif
+    QTemporaryDir dir;
+    // create the dir once upfront
+    auto numFiles = createDirectoryTree(dir.path());
+    waitUntilMTimeChange(dir.path());
+
+    KDirWatch watch;
+    watch.addDir(dir.path(), KDirWatch::WatchSubDirs | KDirWatch::WatchFiles);
+
+    // now touch all the files repeatedly and wait for the dirty updates to come in
+    QSignalSpy spy(&watch, &KDirWatch::dirty);
+    QBENCHMARK {
+        createDirectoryTree(dir.path());
+        QTRY_COMPARE_WITH_TIMEOUT(spy.count(), numFiles, 30000);
+        spy.clear();
+    }
+}
+
+#include "kdirwatch_benchmarktest.moc"