1 files changed, 255 insertions, 0 deletions
diff --git a/tests/benchmarks/corelib/text/qstringlist/tst_bench_qstringlist.cpp b/tests/benchmarks/corelib/text/qstringlist/tst_bench_qstringlist.cpp
new file mode 100644
index 0000000000..2431446bf6
--- /dev/null
+++ b/tests/benchmarks/corelib/text/qstringlist/tst_bench_qstringlist.cpp
@@ -0,0 +1,255 @@
+// Copyright (C) 2016 The Qt Company Ltd.
+// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR GPL-3.0-only
+
+#include <QStringList>
+#include <QTest>
+
+#include <sstream>
+#include <string>
+#include <vector>
+
+using namespace Qt::StringLiterals;
+
+class tst_QStringList: public QObject
+{
+    Q_OBJECT
+
+private slots:
+    void join() const;
+    void join_data() const;
+
+    void removeDuplicates() const;
+    void removeDuplicates_data() const;
+
+    void filter_data() const;
+    void filter() const;
+    void filter_stringMatcher_data() const { filter_data(); }
+    void filter_stringMatcher() const;
+
+    void split_qlist_qbytearray() const;
+    void split_qlist_qbytearray_data() const { return split_data(); }
+
+    void split_data() const;
+    void split_qlist_qstring() const;
+    void split_qlist_qstring_data() const { return split_data(); }
+
+    void split_stdvector_stdstring() const;
+    void split_stdvector_stdstring_data() const { return split_data(); }
+
+    void split_stdvector_stdwstring() const;
+    void split_stdvector_stdwstring_data() const { return split_data(); }
+
+    void split_stdlist_stdstring() const;
+    void split_stdlist_stdstring_data() const { return split_data(); }
+
+private:
+    static QStringList populateList(const int count, const QString &unit);
+    static QString populateString(const int count, const QString &unit);
+};
+
+QStringList tst_QStringList::populateList(const int count, const QString &unit)
+{
+    QStringList retval;
+    retval.reserve(count);
+    for (int i = 0; i < count; ++i)
+        retval.append(unit + QString::number(i));
+
+    return retval;
+}
+
+QString tst_QStringList::populateString(const int count, const QString &unit)
+{
+    QString retval;
+
+    for (int i = 0; i < count; ++i) {
+        retval.append(unit);
+        retval.append(QLatin1Char(':'));
+    }
+
+    return retval;
+}
+
+void tst_QStringList::join() const
+{
+    QFETCH(QStringList, input);
+    QFETCH(QString, separator);
+
+    QBENCHMARK {
+        [[maybe_unused]] auto r = input.join(separator);
+    }
+}
+
+void tst_QStringList::join_data() const
+{
+    QTest::addColumn<QStringList>("input");
+    QTest::addColumn<QString>("separator");
+
+    QTest::newRow("100")
+        << populateList(100, QLatin1String("unit"))
+        << QString();
+
+    QTest::newRow("1000")
+        << populateList(1000, QLatin1String("unit"))
+        << QString();
+
+    QTest::newRow("10000")
+        << populateList(10'000, QLatin1String("unit"))
+        << QString();
+
+    QTest::newRow("100000")
+        << populateList(100'000, QLatin1String("unit"))
+        << QString();
+}
+
+void tst_QStringList::removeDuplicates() const
+{
+    QFETCH(const QStringList, input);
+
+    QBENCHMARK {
+        auto copy = input;
+        copy.removeDuplicates();
+    }
+}
+
+void tst_QStringList::removeDuplicates_data() const
+{
+    QTest::addColumn<QStringList>("input");
+
+    const QStringList s = {"one", "two", "three"};
+
+    QTest::addRow("empty") << QStringList();
+    QTest::addRow("short-dup-0.00") << s;
+    QTest::addRow("short-dup-0.50") << (s + s);
+    QTest::addRow("short-dup-0.66") << (s + s + s);
+    QTest::addRow("short-dup-0.75") << (s + s + s + s);
+
+    const QStringList l = []() {
+        QStringList result;
+        const int n = 1000;
+        result.reserve(n);
+        for (int i = 0; i < n; ++i)
+            result.push_back(QString::number(i));
+        return result;
+    }();
+    QTest::addRow("long-dup-0.00") << l;
+    QTest::addRow("long-dup-0.50") << (l + l);
+    QTest::addRow("long-dup-0.66") << (l + l + l);
+    QTest::addRow("long-dup-0.75") << (l + l + l + l);
+}
+
+void tst_QStringList::filter_data() const
+{
+    QTest::addColumn<QStringList>("list");
+    QTest::addColumn<QStringList>("expected");
+
+    for (int i : {10, 20, 30, 40, 50, 70, 80, 100, 300, 500, 700, 900, 10'000}) {
+        QStringList list = populateList(i, u"A rather long string to test QStringMatcher"_s);
+        list.append(u"Horse and cart from old"_s);
+        QTest::addRow("list%d", i) << list << QStringList(u"Horse and cart from old"_s);
+    }
+}
+
+void tst_QStringList::filter() const
+{
+    QFETCH(QStringList, list);
+    QFETCH(QStringList, expected);
+
+    QBENCHMARK {
+        QCOMPARE(list.filter(u"Horse and cart from old", Qt::CaseSensitive), expected);
+    }
+}
+
+void tst_QStringList::filter_stringMatcher() const
+{
+    QFETCH(QStringList, list);
+    QFETCH(QStringList, expected);
+
+    const QStringMatcher matcher(u"Horse and cart from old", Qt::CaseSensitive);
+    QBENCHMARK {
+        QCOMPARE(list.filter(matcher), expected);
+    }
+}
+
+void tst_QStringList::split_data() const
+{
+    QTest::addColumn<QString>("input");
+    QString unit = QLatin1String("unit") + QString(100, QLatin1Char('s'));
+    //QTest::newRow("") << populateString(10, unit);
+    QTest::newRow("") << populateString(100, unit);
+    //QTest::newRow("") << populateString(100, unit);
+    //QTest::newRow("") << populateString(1000, unit);
+    //QTest::newRow("") << populateString(10000, unit);
+}
+
+void tst_QStringList::split_qlist_qbytearray() const
+{
+    QFETCH(QString, input);
+    const char splitChar = ':';
+    QByteArray ba = input.toLatin1();
+
+    QBENCHMARK {
+        [[maybe_unused]] auto r = ba.split(splitChar);
+    }
+}
+
+void tst_QStringList::split_qlist_qstring() const
+{
+    QFETCH(QString, input);
+    const QChar splitChar = ':';
+
+    QBENCHMARK {
+        [[maybe_unused]] auto r = input.split(splitChar);
+    }
+}
+
+void tst_QStringList::split_stdvector_stdstring() const
+{
+    QFETCH(QString, input);
+    const char split_char = ':';
+    std::string stdinput = input.toStdString();
+
+    QBENCHMARK {
+        std::istringstream split(stdinput);
+        std::vector<std::string> token;
+        for (std::string each;
+             std::getline(split, each, split_char);
+             token.push_back(each))
+            ;
+    }
+}
+
+void tst_QStringList::split_stdvector_stdwstring() const
+{
+    QFETCH(QString, input);
+    const wchar_t split_char = ':';
+    std::wstring stdinput = input.toStdWString();
+
+    QBENCHMARK {
+        std::wistringstream split(stdinput);
+        std::vector<std::wstring> token;
+        for (std::wstring each;
+             std::getline(split, each, split_char);
+             token.push_back(each))
+            ;
+    }
+}
+
+void tst_QStringList::split_stdlist_stdstring() const
+{
+    QFETCH(QString, input);
+    const char split_char = ':';
+    std::string stdinput = input.toStdString();
+
+    QBENCHMARK {
+        std::istringstream split(stdinput);
+        std::list<std::string> token;
+        for (std::string each;
+             std::getline(split, each, split_char);
+             token.push_back(each))
+            ;
+    }
+}
+
+QTEST_MAIN(tst_QStringList)
+
+#include "tst_bench_qstringlist.moc"