CLONE - Adding QBENCHMARK to a test causes the code outside the QBENCHMARK brackets to be called several times

#ifndef TESTEXAMPLE_H
#define TESTEXAMPLE_H

#include <QDebug>
#include <QObject>
#include <QtTest/QtTest>

class TestExample : public QObject {
    Q_OBJECT
   private slots:
    void initTestCase();
    void cleanupTestCase();

    void testWithoutBenchmark();
    void testWithBenchmark();

   private:
    long long _value;
    long long _benchmarkValue;
};

#endif  // TESTEXAMPLE_H

#include "TestExample.h"

void TestExample::initTestCase() {
    _value=0;
    _benchmarkValue=0;
}

void TestExample::cleanupTestCase() {
    QVERIFY(_benchmarkValue > 0);
    QVERIFY(_value == 2);
}

void TestExample::testWithoutBenchmark() {
    _value++;
    qDebug() << QString::number(_value);
    QVERIFY(_value == 1);
}

void TestExample::testWithBenchmark() {
    _value++;
    qDebug() << QString::number(_value);
    QVERIFY(_value == 2);

    QBENCHMARK {
        _benchmarkValue++;
    }
}

QTEST_APPLESS_MAIN(TestExample)