qt5base-lts/src/testlib/qtestsystem.h

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#ifndef QTESTSYSTEM_H
#define QTESTSYSTEM_H

#include <QtTest/qtestcase.h>
#include <QtCore/qcoreapplication.h>
#include <QtCore/qelapsedtimer.h>
#include <QtGui/QWindow>

QT_BEGIN_HEADER

QT_BEGIN_NAMESPACE


class QWidget;

namespace QTest
{
    inline static void qWait(int ms)
    {
        Q_ASSERT(QCoreApplication::instance());

        QElapsedTimer timer;
        timer.start();
        do {
            QCoreApplication::processEvents(QEventLoop::AllEvents, ms);
            QCoreApplication::sendPostedEvents(0, QEvent::DeferredDelete);
            QTest::qSleep(10);
        } while (timer.elapsed() < ms);
    }

    inline static bool qWaitForWindowShown(QWidget *window)
    {
        Q_UNUSED(window);
        qWait(200);
        return true;
    }

    inline static bool qWaitForWindowShown(QWindow *window)
    {
        QElapsedTimer timer;
        timer.start();
        while (!window->isExposed()) {
            int remaining = int(timer.elapsed()) - 1000;
            if (remaining <= 0)
                break;
            QCoreApplication::processEvents(QEventLoop::AllEvents, remaining);
            QCoreApplication::sendPostedEvents(0, QEvent::DeferredDelete);
            QTest::qSleep(10);
        }
        return true;
    }
}

QT_END_NAMESPACE

QT_END_HEADER

#endif