tst_qscreencapture.cpp

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// Copyright (C) 2016 The Qt Company Ltd.

// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR GPL-3.0-only

// TESTED_COMPONENT=src/multimedia

#include "qmockintegration.h"

#include "qmocksurfacecapture.h"

#include <QtTest/qsignalspy.h>

#include <QtTest/qtest.h>

#include <QtMultimedia/qscreencapture.h>

#include <QtCore/qatomic.h>

#include <QtCore/qdebug.h>

Q_ENABLE_MOCK_MULTIMEDIA_PLUGIN

class tst_QScreenCapture : public QObject

    Q_OBJECT

private:

    // Use custom waiting instead of QSignalSpy since the spy tries copying not sharable object

    // QVideoFrame to QVariant and gets an assert

    bool waitForFrame(QPlatformSurfaceCapture &psc)

        QAtomicInteger<bool> newFrameReceived = false;

        QObject o;

        auto connection = connect(&psc, &QPlatformSurfaceCapture::newVideoFrame, &o,

                                  [&newFrameReceived]() { newFrameReceived = true; });

        return QTest::qWaitFor([&newFrameReceived]() { return newFrameReceived; });

private slots:

    void destructionOfActiveCapture();

};

void tst_QScreenCapture::destructionOfActiveCapture()

    // Run a few times in order to catch random UB on deletion

    for (int i = 0; i < 10; ++i) {

        auto sc = std::make_unique<QScreenCapture>();

        QPointer<QPlatformSurfaceCapture> psc = QMockIntegration::instance()->lastScreenCapture();

        QVERIFY(psc);

        sc->setActive(true);

        QVERIFY(waitForFrame(*psc));

        QSignalSpy spy(sc.get(), &QScreenCapture::activeChanged);

        psc->setParent(nullptr);

        sc.reset();

        QVERIFY2(spy.empty(), "No signals from QScreenCapture are expected on deletion");

        QVERIFY2(!psc, "Platform screen capture must be deleted whether or not it has a parent");

QTEST_MAIN(tst_QScreenCapture)

#include "tst_qscreencapture.moc"