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// Copyright (C) 2025 The Qt Company Ltd.
// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR GPL-3.0-only
#include <QtCore/qobject.h>
#include <QtCore/qstring.h>
#include <QtTest/qtest.h>
#include <QtTest/qsignalspy.h>
#include <QtCore/qjniobject.h>
#include <QtCore/qjnitypes.h>
#include <QtCore/qcoreapplication_platform.h>
#include <jni.h>
Q_DECLARE_JNI_CLASS(QtSignalQueue, "org/qtproject/qt/android/QtSignalQueue")
Q_DECLARE_JNI_CLASS(SignalListenerInfo, "org/qtproject/qt/android/QtSignalQueue$SignalListenerInfo")
Q_DECLARE_JNI_CLASS(TestQtQuickView, "org/qtproject/qt/android/TestQtQuickView")
Q_DECLARE_JNI_CLASS(QtQuickView, "org/qtproject/qt/android/QtQuickView")
Q_DECLARE_JNI_CLASS(Queue, "java/util/Queue")
class tst_qtquickview_signalqueue : public QObject
{
Q_OBJECT
public:
explicit tst_qtquickview_signalqueue(QObject *parent = nullptr);
signals:
void onConnectSignalListener(QString signalName, QJniArray<jclass> argTypes,
QJniObject listener, int id);
private Q_SLOTS:
void pushEmpty();
void removeEmpty();
void pushRemove();
void callConnect();
private:
static void onConnectSignalListenerCalled(JNIEnv *, jclass, QtJniTypes::String signalName,
QJniArray<jclass> argTypes, QJniObject listener,
jint id);
Q_DECLARE_JNI_NATIVE_METHOD_IN_CURRENT_SCOPE(onConnectSignalListenerCalled)
};
static tst_qtquickview_signalqueue *s_testInstance = nullptr;
using namespace QtJniTypes;
tst_qtquickview_signalqueue::tst_qtquickview_signalqueue(QObject *parent) : QObject(parent)
{
s_testInstance = this;
TestQtQuickView::registerNativeMethods({
Q_JNI_NATIVE_SCOPED_METHOD(onConnectSignalListenerCalled, tst_qtquickview_signalqueue)
});
}
void tst_qtquickview_signalqueue::onConnectSignalListenerCalled(JNIEnv *, jclass, String signalName,
QJniArray<jclass> argTypes,
QJniObject listener, jint id)
{
Q_ASSERT(s_testInstance);
emit s_testInstance->onConnectSignalListener(signalName.toString(), argTypes, listener, id);
}
SignalListenerInfo createInfo(int id = 1)
{
return SignalListenerInfo::construct(QtSignalQueue::construct(), String(QString("signalName")),
QJniArray<jclass>{}, QJniObject{}, id);
}
/*
Verify that basic addition of elements works.
*/
void tst_qtquickview_signalqueue::pushEmpty()
{
auto queue = QtSignalQueue::construct();
queue.callMethod<void>("add", createInfo());
auto array = queue.getField<Queue>("m_queuedSignalListeners");
QCOMPARE(array.callMethod<jint>("size"), 1);
}
/*
Verify that calling QtSignalQueue::remove() on an empty queue returns false.
*/
void tst_qtquickview_signalqueue::removeEmpty()
{
auto queue = QtSignalQueue::construct();
auto result = queue.callMethod<bool>("remove", 123);
QCOMPARE(result, false);
}
/*
Test basic add and removal of signals from the QtSignalQueue, by directly checking the size of
the internal data object.
*/
void tst_qtquickview_signalqueue::pushRemove()
{
auto queue = QtSignalQueue::construct();
// Add 1 element, remove it and verify result
const int id = 256;
queue.callMethod<void>("add", createInfo(id));
QCOMPARE(queue.callMethod<bool>("remove", id), true);
auto array = queue.getField<Queue>("m_queuedSignalListeners");
QCOMPARE(array.callMethod<jint>("size"), 0);
// Add two elements, verify the size of the data container
queue.callMethod<void>("add", createInfo(1));
queue.callMethod<void>("add", createInfo(2));
QCOMPARE(array.callMethod<jint>("size"), 2);
// Remove 1 element, verify that result value is correct and the data container size is correct
QCOMPARE(queue.callMethod<bool>("remove", 2), true);
QCOMPARE(array.callMethod<jint>("size"), 1);
// Remove a non-existing element, verify return value
QCOMPARE(queue.callMethod<bool>("remove", 2), false);
}
/*
QtSignalQueue::connectQueuedSignalListeners() must call QtQuickView::connectSignalListener()
for all elements added to the queue. If there are no elements, no connectSignalListener() calls
may happen. After connectQueuedSignalListeners() has been called, the queue must be empty.
*/
void tst_qtquickview_signalqueue::callConnect()
{
auto queue = QtSignalQueue::construct();
auto view = TestQtQuickView::construct(QNativeInterface::QAndroidApplication::context());
QSignalSpy spy(s_testInstance, &tst_qtquickview_signalqueue::onConnectSignalListener);
const int id = 256;
queue.callMethod<void>("add", createInfo(id));
queue.callMethod<void>("connectQueuedSignalListeners", view.object<QtQuickView>());
spy.wait(200);
QCOMPARE(spy.count(), 1);
QVariantList args = spy.first();
QCOMPARE(args.last().toInt(), id);
auto array = queue.getField<Queue>("m_queuedSignalListeners");
QCOMPARE(array.callMethod<jint>("size"), 0);
spy.clear();
queue.callMethod<void>("connectQueuedSignalListeners", view.object<QtQuickView>());
spy.wait(200);
QCOMPARE(spy.count(), 0);
}
QTEST_MAIN(tst_qtquickview_signalqueue)
#include "tst_qtquickview_signalqueue.moc"
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