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#include <QApplication>
#include <QProcess>

#include <qtest.h>


class tst_qapplication : public QObject
{
    Q_OBJECT
private slots:
    void ctor();
};

/*
    Test the performance of the QApplication constructor.

    This test creates a new process and thus includes process creation overhead.
    Callgrind results are meaningless since the child process is not traced.
*/
void tst_qapplication::ctor()
{
    QProcess proc;
    const QString program       = QCoreApplication::applicationFilePath();
    const QStringList arguments = QStringList() << QLatin1String("--exit-now");

    QBENCHMARK {
        proc.start(program, arguments);
        QVERIFY(proc.waitForStarted());
        QVERIFY(proc.waitForFinished());
        QCOMPARE(proc.exitStatus(), QProcess::NormalExit);
        QCOMPARE(proc.exitCode(), 0);
    }
}

int main(int argc, char** argv)
{
    QApplication app(argc, argv);

    if (argc == 2 && QLatin1String("--exit-now") == QLatin1String(argv[1])) {
        return 0;
    }

    tst_qapplication test;
    return QTest::qExec(&test, argc, argv);
}

#include "main.moc"