qt 6.5.1 original

tests/manual/wasm/network/echo_client_mainthread/CMakeLists.txt

@@ -0,0 +1,8 @@
+qt_internal_add_manual_test(echo_client_mainthread
+    GUI
+    SOURCES
+        main.cpp
+    LIBRARIES
+        Qt::Core
+        Qt::Network
+)

tests/manual/wasm/network/echo_client_mainthread/main.cpp

@@ -0,0 +1,52 @@
+// Copyright (C) 2021 The Qt Company Ltd.
+// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR BSD-3-Clause
+
+#include <QtCore>
+#include <QtNetwork>
+
+int main(int argc, char **argv) {
+
+    QCoreApplication app(argc, argv);
+
+    // This example connects to localhost, but note that the host can
+    // be any host reachable from the client using webscokets, at any port.
+    QString hostName = "localhost";
+    int port = 1515;
+    qDebug() << "This example connects to a server at" << hostName << "port" << port << ","
+             << "where it expects to find a WebSockify server, which forwards to the fortune server.";
+
+    auto echo = [hostName, port]() {
+        QTcpSocket *socket = new QTcpSocket();
+
+        QObject::connect(socket, &QAbstractSocket::connected, [socket]() {
+            qDebug() << "Connected";
+            socket->write("Hello, echo server!");
+            socket->flush();
+        });
+
+        QObject::connect(socket, &QIODevice::readyRead, [socket]() {
+            QByteArray data = socket->readAll();
+            qDebug() << "Ready Read, got echo:" << data;
+            socket->disconnectFromHost();
+            socket->deleteLater();
+        });
+
+        QObject::connect(socket, &QAbstractSocket::errorOccurred, [socket]() {
+            qDebug() << "Error Occurred" << socket->error();
+        });
+
+        QObject::connect(socket, &QAbstractSocket::disconnected, [socket]() {
+            qDebug() << "Disconnected";
+            socket->deleteLater();
+        });
+
+        qDebug() << "Connect to host" << hostName << port;
+        socket->connectToHost(hostName, port);
+    };
+
+    QTimer::singleShot(500, [echo](){
+        echo();
+    });
+
+    return app.exec();
+}