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// Copyright (C) 2019 The Qt Company Ltd.
// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR GPL-3.0-only
#include <QtOpcUa/QOpcUaAuthenticationInformation>
#include <QtOpcUa/QOpcUaClient>
#include <QtOpcUa/QOpcUaProvider>
#include <QtCore/QCoreApplication>
#include <QtCore/QProcess>
#include <QtCore/QScopedPointer>
#include <QtTest/QSignalSpy>
#include <QtTest/QtTest>
#include <QTcpSocket>
#include <QTcpServer>
#define defineDataMethod(name) void name()\
{\
QTest::addColumn<QOpcUaClient *>("opcuaClient");\
for (auto *client: m_clients)\
QTest::newRow(client->backend().toLatin1().constData()) << client;\
}
const int signalSpyTimeout = 10000;
class Tst_Connection: public QObject
{
Q_OBJECT
public:
Tst_Connection();
~Tst_Connection();
private slots:
void initTestCase();
void cleanupTestCase();
// connect & disconnect
defineDataMethod(connectMultipleTimes_data)
void connectMultipleTimes();
private:
QString envOrDefault(const char *env, QString def)
{
return qEnvironmentVariableIsSet(env) ? qgetenv(env).constData() : def;
}
QString m_discoveryEndpoint;
QOpcUaProvider m_opcUa;
QStringList m_backends;
QList<QOpcUaClient *> m_clients;
QProcess m_serverProcess;
QString m_testServerPath;
QOpcUaEndpointDescription m_endpoint;
};
Tst_Connection::Tst_Connection()
{
m_backends = QOpcUaProvider::availableBackends();
}
Tst_Connection::~Tst_Connection()
{
qDeleteAll(m_clients);
}
void Tst_Connection::initTestCase()
{
const quint16 defaultPort = 43344;
const QHostAddress defaultHost(QHostAddress::LocalHost);
for (const auto &backend: m_backends) {
QVariantMap backendOptions;
QOpcUaClient *client = m_opcUa.createClient(backend, backendOptions);
QVERIFY2(client != nullptr,
QStringLiteral("Loading backend failed: %1").arg(backend).toLatin1().data());
client->setParent(this);
qDebug() << "Using SDK plugin:" << client->backend();
m_clients.append(client);
}
if (qEnvironmentVariableIsEmpty("OPCUA_HOST") && qEnvironmentVariableIsEmpty("OPCUA_PORT")) {
m_testServerPath = qApp->applicationDirPath()
#if defined(Q_OS_MACOS)
+ QLatin1String("/../../open62541-testserver/open62541-testserver.app/Contents/MacOS/open62541-testserver")
#else
#if defined(Q_OS_WIN) && !defined(TESTS_CMAKE_SPECIFIC_PATH)
+ QLatin1String("/..")
#endif
+ QLatin1String("/../../open62541-testserver/open62541-testserver")
#ifdef Q_OS_WIN
+ QLatin1String(".exe")
#endif
#endif
;
if (!QFile::exists(m_testServerPath)) {
qDebug() << "Server Path:" << m_testServerPath;
QSKIP("all auto tests rely on an open62541-based test-server");
}
// In this case the test is supposed to open its own server.
// Unfortunately there is no way to check if the server has started up successfully
// because of missing error handling.
// This checks will detect other servers blocking the port.
// Check for running server
QTcpSocket socket;
socket.connectToHost(defaultHost, defaultPort);
QVERIFY2(socket.waitForConnected(1500) == false, "Server is already running");
// Check for running server which does not respond
QTcpServer server;
QVERIFY2(server.listen(defaultHost, defaultPort) == true, "Port is occupied by another process. Check for defunct server.");
server.close();
m_serverProcess.start(m_testServerPath);
QVERIFY2(m_serverProcess.waitForStarted(), qPrintable(m_serverProcess.errorString()));
QTest::qSleep(100);
socket.connectToHost(defaultHost, defaultPort);
if (!socket.waitForConnected(5000))
{
bool success = false;
for (int i = 0; i < 50; ++i) {
QTest::qSleep(100);
socket.connectToHost(defaultHost, defaultPort);
if (socket.waitForConnected(5000)) {
success = true;
break;
}
}
if (!success)
QFAIL("Server does not run");
}
socket.disconnectFromHost();
}
QString host = envOrDefault("OPCUA_HOST", defaultHost.toString());
QString port = envOrDefault("OPCUA_PORT", QString::number(defaultPort));
m_discoveryEndpoint = QStringLiteral("opc.tcp://%1:%2").arg(host, port);
qDebug() << "Using endpoint:" << m_discoveryEndpoint;
QOpcUaClient *client = m_clients.first();
if (client) {
QSignalSpy endpointSpy(m_clients.first(), &QOpcUaClient::endpointsRequestFinished);
client->requestEndpoints(m_discoveryEndpoint);
endpointSpy.wait(signalSpyTimeout);
QCOMPARE(endpointSpy.size(), 1);
const auto desc = endpointSpy.at(0).at(0).value<QList<QOpcUaEndpointDescription>>();
QVERIFY(desc.size() > 0);
QCOMPARE(endpointSpy.at(0).at(2).value<QUrl>(), m_discoveryEndpoint);
m_endpoint = desc.first();
}
}
void Tst_Connection::connectMultipleTimes()
{
QFETCH(QOpcUaClient *, opcuaClient);
QVERIFY(opcuaClient != nullptr);
QSignalSpy connectedSpy(opcuaClient, &QOpcUaClient::connected);
QSignalSpy disconnectedSpy(opcuaClient, &QOpcUaClient::disconnected);
QSignalSpy stateSpy(opcuaClient, &QOpcUaClient::stateChanged);
QTest::qWait(500);
opcuaClient->connectToEndpoint(m_endpoint);
QTRY_VERIFY2(opcuaClient->state() == QOpcUaClient::Connected, "Could not connect to server");
QCOMPARE(connectedSpy.size(), 1);
QCOMPARE(disconnectedSpy.size(), 0);
QCOMPARE(stateSpy.size(), 2);
QCOMPARE(stateSpy.at(0).at(0).value<QOpcUaClient::ClientState>(),
QOpcUaClient::ClientState::Connecting);
QCOMPARE(stateSpy.at(1).at(0).value<QOpcUaClient::ClientState>(),
QOpcUaClient::ClientState::Connected);
stateSpy.clear();
connectedSpy.clear();
disconnectedSpy.clear();
QVERIFY(opcuaClient->endpoint() == m_endpoint);
// Connect again
opcuaClient->connectToEndpoint(m_endpoint);
stateSpy.wait(signalSpyTimeout);
QTRY_VERIFY2(opcuaClient->state() == QOpcUaClient::Connected, "Could not connect to server");
QCOMPARE(connectedSpy.size(), 1);
QCOMPARE(disconnectedSpy.size(), 1);
QCOMPARE(stateSpy.size(), 3);
QCOMPARE(stateSpy.at(0).at(0).value<QOpcUaClient::ClientState>(),
QOpcUaClient::ClientState::Disconnected);
QCOMPARE(stateSpy.at(1).at(0).value<QOpcUaClient::ClientState>(),
QOpcUaClient::ClientState::Connecting);
QCOMPARE(stateSpy.at(2).at(0).value<QOpcUaClient::ClientState>(),
QOpcUaClient::ClientState::Connected);
opcuaClient->disconnectFromEndpoint();
}
void Tst_Connection::cleanupTestCase()
{
if (m_serverProcess.state() == QProcess::Running) {
m_serverProcess.kill();
m_serverProcess.waitForFinished(2000);
}
qDeleteAll(m_clients);
m_clients.clear();
}
int main(int argc, char *argv[])
{
QCoreApplication app(argc, argv);
QTEST_SET_MAIN_SOURCE_PATH
// run tests for all available backends
QStringList availableBackends = QOpcUaProvider::availableBackends();
if (availableBackends.empty()) {
qDebug("No OPCUA backends found, skipping tests.");
return EXIT_SUCCESS;
}
Tst_Connection tc;
return QTest::qExec(&tc, argc, argv);
}
#include "tst_connection.moc"
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