// Copyright (C) 2016 The Qt Company Ltd.
// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR GPL-3.0-only

#include <qtest.h>
#include <QtQml/qjsengine.h>
#include <QtQml/qjsvalue.h>
#include <QtQml/qjsvalueiterator.h>

class tst_QJSValueIterator : public QObject
{
    Q_OBJECT

public:
    tst_QJSValueIterator();
    virtual ~tst_QJSValueIterator();

    void dataHelper();

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

    void hasNextAndNext();

    void constructAndNext_data();
    void constructAndNext();

    void name_data();
    void name();
#if 0 // No string handle
    void scriptName_data();
    void scriptName();
#endif

    void value_data();
    void value();
#if 0 // no setValue
    void setValue_data();
    void setValue();
#endif
#if 0 // no flags
    void flags();
#endif

#if 0 // no array index
    void iterateArrayAndConvertNameToIndex();
#endif
#if 0 // no setValue
    void iterateArrayAndDoubleElements();
#endif
#if 0 // no remove
    void iterateArrayAndRemoveAllElements();
#endif
};

tst_QJSValueIterator::tst_QJSValueIterator()
{
}

tst_QJSValueIterator::~tst_QJSValueIterator()
{
}

void tst_QJSValueIterator::init()
{
}

void tst_QJSValueIterator::cleanup()
{
}

void tst_QJSValueIterator::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_QJSValueIterator::hasNextAndNext()
{
    QJSEngine engine;
    QJSValue object = engine.newObject();
    for (int i = 0; i < 2000; ++i)
        object.setProperty(i, i);
    QBENCHMARK {
        for (int i = 0; i < 1000; ++i) {
            QJSValueIterator it(object);
            while (it.hasNext())
                it.next();
        }
    }
}

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

void tst_QJSValueIterator::constructAndNext()
{
    QFETCH(QString, code);
    QJSEngine engine;
    QJSValue object = engine.evaluate(code);
    Q_ASSERT(object.isObject());

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

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

void tst_QJSValueIterator::name()
{
    QFETCH(QString, code);
    QJSEngine engine;
    QJSValue object = engine.evaluate(code);
    Q_ASSERT(object.isObject());

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

#if 0
void tst_QJSValueIterator::scriptName_data()
{
    dataHelper();
}

void tst_QJSValueIterator::scriptName()
{
    QFETCH(QString, code);
    QJSEngine engine;
    QJSValue object = engine.evaluate(code);
    Q_ASSERT(object.isObject());

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

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

void tst_QJSValueIterator::value()
{
    QFETCH(QString, code);
    QJSEngine engine;
    QJSValue object = engine.evaluate(code);
    Q_ASSERT(object.isObject());

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

#if 0
void tst_QJSValueIterator::setValue_data()
{
    dataHelper();
}

void tst_QJSValueIterator::setValue()
{
    QFETCH(QString, code);
    QJSEngine engine;
    QJSValue object = engine.evaluate(code);
    Q_ASSERT(object.isObject());

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

void tst_QJSValueIterator::flags()
{
    QJSEngine engine;
    QJSValue object = engine.newObject();
    QJSValue::PropertyFlags flags = flags;
    object.setProperty("foo", 123, QJSValue::SkipInEnumeration | QJSValue::ReadOnly | QJSValue::Undeletable);
    QJSValueIterator it(object);
    it.next();
    QBENCHMARK {
        for (int i = 0; i < 50000; ++i)
            it.flags();
    }
}
#endif

#if 0
void tst_QJSValueIterator::iterateArrayAndConvertNameToIndex()
{
    QJSEngine engine;
    QJSValue array = engine.newArray();
    for (int i = 0; i < 20000; ++i)
        array.setProperty(i, i);
    QBENCHMARK {
        QJSValueIterator it(array);
        while (it.hasNext()) {
            it.next();
            it.scriptName().toArrayIndex();
        }
    }
}

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

void tst_QJSValueIterator::iterateArrayAndRemoveAllElements()
{
    QJSEngine engine;
    QJSValue array = engine.newArray();
    for (int i = 0; i < 20000; ++i)
        array.setProperty(i, i);
    QBENCHMARK {
        QJSValueIterator it(array);
        while (it.hasNext()) {
            it.next();
            it.remove();
        }
    }
}
#endif

QTEST_MAIN(tst_QJSValueIterator)
#include "tst_qjsvalueiterator.moc"
