qt-everywhere-src-5.14.1/qtscript/tests/benchmarks/script/qscriptvalueiterator/tst_qscriptvalueiterator.cpp

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**
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** This file is part of the test suite of the Qt Toolkit.
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#include <qtest.h>
#include <QtScript>

class tst_QScriptValueIterator : public QObject
{
    Q_OBJECT

public:
    tst_QScriptValueIterator();
    virtual ~tst_QScriptValueIterator();

    void dataHelper();

private slots:
    void init();
    void cleanup();

    void hasNextAndNext();

    void constructAndNext_data();
    void constructAndNext();

    void name_data();
    void name();
    void scriptName_data();
    void scriptName();

    void value_data();
    void value();
    void setValue_data();
    void setValue();

    void flags();

    void iterateArrayAndConvertNameToIndex();
    void iterateArrayAndDoubleElements();
    void iterateArrayAndRemoveAllElements();
};

tst_QScriptValueIterator::tst_QScriptValueIterator()
{
}

tst_QScriptValueIterator::~tst_QScriptValueIterator()
{
}

void tst_QScriptValueIterator::init()
{
}

void tst_QScriptValueIterator::cleanup()
{
}

void tst_QScriptValueIterator::dataHelper()
{
    QTest::addColumn<QString>("code");
    QTest::newRow("{ foo: 123 }") << QString::fromLatin1("({ foo: 123 })");
    QTest::newRow("Math") << QString::fromLatin1("Math");
    QTest::newRow("Array.prototype") << QString::fromLatin1("Array.prototype");
    QTest::newRow("Global Object") << QString::fromLatin1("this");
    QTest::newRow("['foo']") << QString::fromLatin1("['foo']");
    QTest::newRow("array with 1000 elements")
        << QString::fromLatin1("(function() {"
                               "  var a = new Array;"
                               "  for (i = 0; i < 1000; ++i)"
                               "    a[i] = i;"
                               "  return a;"
                               "})()");
}

void tst_QScriptValueIterator::hasNextAndNext()
{
    QScriptEngine engine;
    QScriptValue object = engine.newObject();
    for (int i = 0; i < 2000; ++i)
        object.setProperty(i, i);
    QScriptValueIterator it(object);
    QBENCHMARK {
        for (int i = 0; i < 1000; ++i) {
            it.toFront();
            while (it.hasNext())
                it.next();
        }
    }
}

void tst_QScriptValueIterator::constructAndNext_data()
{
    dataHelper();
}

void tst_QScriptValueIterator::constructAndNext()
{
    QFETCH(QString, code);
    QScriptEngine engine;
    QScriptValue object = engine.evaluate(code);
    Q_ASSERT(object.isObject());

    QBENCHMARK {
        for (int i = 0; i < 100; ++i) {
            QScriptValueIterator it(object);
            it.next();
        }
    }
}

void tst_QScriptValueIterator::name_data()
{
    dataHelper();
}

void tst_QScriptValueIterator::name()
{
    QFETCH(QString, code);
    QScriptEngine engine;
    QScriptValue object = engine.evaluate(code);
    Q_ASSERT(object.isObject());

    QScriptValueIterator it(object);
    it.next();
    QBENCHMARK {
        for (int i = 0; i < 200000; ++i)
            it.name();
    }
}

void tst_QScriptValueIterator::scriptName_data()
{
    dataHelper();
}

void tst_QScriptValueIterator::scriptName()
{
    QFETCH(QString, code);
    QScriptEngine engine;
    QScriptValue object = engine.evaluate(code);
    Q_ASSERT(object.isObject());

    QScriptValueIterator it(object);
    it.next();
    QBENCHMARK {
        for (int i = 0; i < 50000; ++i)
            it.scriptName();
    }
}

void tst_QScriptValueIterator::value_data()
{
    dataHelper();
}

void tst_QScriptValueIterator::value()
{
    QFETCH(QString, code);
    QScriptEngine engine;
    QScriptValue object = engine.evaluate(code);
    Q_ASSERT(object.isObject());

    QScriptValueIterator it(object);
    it.next();
    QBENCHMARK {
        for (int i = 0; i < 50000; ++i)
            it.value();
    }
}

void tst_QScriptValueIterator::setValue_data()
{
    dataHelper();
}

void tst_QScriptValueIterator::setValue()
{
    QFETCH(QString, code);
    QScriptEngine engine;
    QScriptValue object = engine.evaluate(code);
    Q_ASSERT(object.isObject());

    QScriptValueIterator it(object);
    it.next();
    QScriptValue newValue(&engine, 456);
    QBENCHMARK {
        for (int i = 0; i < 50000; ++i)
            it.setValue(newValue);
    }
}

void tst_QScriptValueIterator::flags()
{
    QScriptEngine engine;
    QScriptValue object = engine.newObject();
    QScriptValue::PropertyFlags flags = flags;
    object.setProperty("foo", 123, QScriptValue::SkipInEnumeration | QScriptValue::ReadOnly | QScriptValue::Undeletable);
    QScriptValueIterator it(object);
    it.next();
    QBENCHMARK {
        for (int i = 0; i < 50000; ++i)
            it.flags();
    }
}

void tst_QScriptValueIterator::iterateArrayAndConvertNameToIndex()
{
    QScriptEngine engine;
    QScriptValue array = engine.newArray();
    for (int i = 0; i < 20000; ++i)
        array.setProperty(i, i);
    QBENCHMARK {
        QScriptValueIterator it(array);
        while (it.hasNext()) {
            it.next();
            it.scriptName().toArrayIndex();
        }
    }
}

void tst_QScriptValueIterator::iterateArrayAndDoubleElements()
{
    QScriptEngine engine;
    QScriptValue array = engine.newArray();
    for (int i = 0; i < 20000; ++i)
        array.setProperty(i, i);
    QBENCHMARK {
        QScriptValueIterator it(array);
        while (it.hasNext()) {
            it.next();
            it.setValue(QScriptValue(&engine, it.value().toNumber() * 2));
        }
    }
}

void tst_QScriptValueIterator::iterateArrayAndRemoveAllElements()
{
    QScriptEngine engine;
    QScriptValue array = engine.newArray();
    for (int i = 0; i < 20000; ++i)
        array.setProperty(i, i);
    QBENCHMARK {
        QScriptValueIterator it(array);
        while (it.hasNext()) {
            it.next();
            it.remove();
        }
    }
}

QTEST_MAIN(tst_QScriptValueIterator)
#include "tst_qscriptvalueiterator.moc"