Allow command line parameter for auto test runs

I have some small projects with auto tests directly integrated in the main program.

They are started by passing "--test" as first parameter to main, which then delegates to QTest.

int runTests(int argc, char *argv[])
{
    tst_MyTest tc;
    const int result = QTest::qExec(&tc, argc, argv);
    return result;
}

int main(int argc, char *argv[])
{
    QApplication a(argc, argv);

    if (argc > 1 && qstrcmp(argv[1], "--test") == 0) {
        return runTests(argc - 1, &argv[1]);
    }

    MainWindow w;
    w.show();

    return a.exec();
}

The tests are recognized correctly by the auto test plugin, and the correct executable is started. However, due to the missing "--test" parameter, my tests are not run.

If I could enter this parameter somewhere, then it should already work.