qt-creator/tests/auto/utils/objectpool/tst_objectpool.cpp

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** Copyright (C) 2017 The Qt Company Ltd.
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#include <utils/objectpool.h>

#include <QtTest>

//TESTED_COMPONENT=src/libs/utils

using namespace Utils;

class tst_ObjectPool : public QObject
{
    Q_OBJECT

private slots:
    void testSize();
};

void tst_ObjectPool::testSize()
{
    QObject parent;

    QPointer<QObject> object1 = new QObject;
    object1->setObjectName("object1");

    QPointer<QObject> object2 = new QObject(&parent);
    object2->setObjectName("object2");

    QPointer<QObject> object3 = new QObject;
    object3->setObjectName("object3");

    QPointer<QObject> object4 = new QObject(&parent);
    object4->setObjectName("object4");

    {
        ObjectPool<QObject> pool;
        QCOMPARE(pool.size(), 0);

        pool.addObject(object1.data());
        QCOMPARE(pool.size(), 1);

        pool.addObject(object2.data());
        QCOMPARE(pool.size(), 2);

        pool.addObject(object3.data());
        QCOMPARE(pool.size(), 3);

        pool.addObject(object4.data());
        QCOMPARE(pool.size(), 4);

        delete object1;
        QCOMPARE(pool.size(), 3);
        QCOMPARE(parent.children().size(), 2);

        delete object2;
        QCOMPARE(pool.size(), 2);
        QCOMPARE(parent.children().size(), 1);
    }

    QCOMPARE(parent.children().size(), 1);
    QCOMPARE(object3.isNull(), true);
    QCOMPARE(object4.isNull(), false);

    delete object4;
    QCOMPARE(parent.children().size(), 0);
    QCOMPARE(object3.isNull(), true);
    QCOMPARE(object4.isNull(), true);
}


QTEST_MAIN(tst_ObjectPool)

#include "tst_objectpool.moc"