wasm: add manual auto-test for websockify-tunneled sockets

Test TCP sockets usage on the main thread, on secondary threads,
and with asyncify.

Pick-to: 6.4
Change-Id: I466df8c253c6a18a9c12d44fa8f53e76f81a0437
Reviewed-by: Lorn Potter <lorn.potter@gmail.com>

3 files changed, 404 insertions, 0 deletions

diff --git a/tests/manual/wasm/network/sockify_sockets_auto/CMakeLists.txt b/tests/manual/wasm/network/sockify_sockets_auto/CMakeLists.txt
new file mode 100644
index 0000000000..f69bd80259
--- /dev/null
+++ b/tests/manual/wasm/network/sockify_sockets_auto/CMakeLists.txt
@@ -0,0 +1,22 @@
+qt_internal_add_manual_test(sockify_sockets_auto
+    SOURCES
+        main.cpp
+        ../../qtwasmtestlib/qtwasmtestlib.cpp
+    PUBLIC_LIBRARIES
+        Qt::Core
+        Qt::Network
+)
+
+include_directories(../../qtwasmtestlib/)
+
+add_custom_command(
+    TARGET sockify_sockets_auto POST_BUILD
+    COMMAND ${CMAKE_COMMAND} -E copy
+            ${CMAKE_CURRENT_SOURCE_DIR}/sockify_sockets_auto.html
+            ${CMAKE_CURRENT_BINARY_DIR}/sockify_sockets_auto.html)
+
+add_custom_command(
+    TARGET sockify_sockets_auto POST_BUILD
+    COMMAND ${CMAKE_COMMAND} -E copy
+            ${CMAKE_CURRENT_SOURCE_DIR}/../../qtwasmtestlib/qtwasmtestlib.js
+            ${CMAKE_CURRENT_BINARY_DIR}/qtwasmtestlib.js)
diff --git a/tests/manual/wasm/network/sockify_sockets_auto/main.cpp b/tests/manual/wasm/network/sockify_sockets_auto/main.cpp
new file mode 100644
index 0000000000..2bd4f2c3ac
--- /dev/null
+++ b/tests/manual/wasm/network/sockify_sockets_auto/main.cpp
@@ -0,0 +1,365 @@
+/****************************************************************************
+**
+** Copyright (C) 2022 The Qt Company Ltd.
+** Contact: https://www.qt.io/licensing/
+**
+** This file is part of the examples of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:BSD$
+** Commercial License Usage
+** Licensees holding valid commercial Qt licenses may use this file in
+** accordance with the commercial license agreement provided with the
+** Software or, alternatively, in accordance with the terms contained in
+** a written agreement between you and The Qt Company. For licensing terms
+** and conditions see https://www.qt.io/terms-conditions. For further
+** information use the contact form at https://www.qt.io/contact-us.
+**
+** BSD License Usage
+** Alternatively, you may use this file under the terms of the BSD license
+** as follows:
+**
+** "Redistribution and use in source and binary forms, with or without
+** modification, are permitted provided that the following conditions are
+** met:
+**   * Redistributions of source code must retain the above copyright
+**     notice, this list of conditions and the following disclaimer.
+**   * Redistributions in binary form must reproduce the above copyright
+**     notice, this list of conditions and the following disclaimer in
+**     the documentation and/or other materials provided with the
+**     distribution.
+**   * Neither the name of The Qt Company Ltd nor the names of its
+**     contributors may be used to endorse or promote products derived
+**     from this software without specific prior written permission.
+**
+**
+** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE."
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#include <qtwasmtestlib.h>
+#include <QtCore>
+#include <QtNetwork>
+
+const int socketWait = 1000;
+const QString hostName = "localhost";
+const int port = 1515;
+
+class SockifySocketsTest: public QObject
+{
+    Q_OBJECT
+
+private slots:
+    void echo();
+    void echoMultipleMessages();
+    void echoMultipleSockets();
+    void remoteClose();
+
+#if QT_CONFIG(thread)
+    void thread_echo();
+    void thread_remoteClose();
+    void thread_echoMultipleSockets();
+#endif
+
+#ifdef QT_HAVE_EMSCRIPTEN_ASYNCIFY
+    void asyncify_echo();
+    void asyncify_remoteClose();
+#endif
+};
+
+class CompleteTestFunctionRefGuard {
+public:
+    CompleteTestFunctionRefGuard(CompleteTestFunctionRefGuard const&) = delete;
+    CompleteTestFunctionRefGuard& operator=(CompleteTestFunctionRefGuard const&) = delete;
+
+    static CompleteTestFunctionRefGuard *create() {
+        return new CompleteTestFunctionRefGuard();
+    }
+
+    void ref() {
+        QMutexLocker lock(&mutex);
+        ++counter;
+    }
+
+    void deref() {
+        bool itsTheFinalDeref = [this] {
+            QMutexLocker lock(&mutex);
+            return --counter == 0;
+        }();
+
+        if (itsTheFinalDeref) {
+            delete this;
+            QtWasmTest::completeTestFunction();
+        }
+    }
+private:
+    CompleteTestFunctionRefGuard() { };
+
+    QMutex mutex;
+    int counter = 0;
+};
+
+#if QT_CONFIG(thread)
+
+class TestThread : public QThread
+{
+public:
+    static QThread *create(std::function<void()> started, std::function<void()> finished)
+    {
+        TestThread *thread = new TestThread();
+        connect(thread, &QThread::started, [started]() {
+            started();
+        });
+        connect(thread, &QThread::finished, [thread, finished]() {
+            finished();
+            thread->deleteLater();
+        });
+        thread->start();
+        return thread;
+    }
+};
+
+#endif
+
+void blockingEchoTest()
+{
+    QTcpSocket socket;
+    socket.connectToHost(hostName, port);
+    if (!socket.waitForConnected(socketWait))
+        qFatal("socket connect error");
+
+    QByteArray message = "Hello, echo server!";
+
+    QByteArray command = "echo:" + message + ';';
+    socket.write(command);
+    socket.flush();
+
+    socket.waitForReadyRead(socketWait);
+    QByteArray expectedReply = message + ';';
+    QByteArray reply = socket.readAll();
+    if (reply != expectedReply)
+        qFatal("echo_multiple received incorrect reply");
+    socket.disconnectFromHost();
+}
+
+void blockingRemoteClose()
+{
+    QTcpSocket socket;
+
+    qDebug() << "## connectToHost";
+    socket.connectToHost(hostName, port);
+
+    qDebug() << "## waitForConnected";
+    socket.waitForConnected(socketWait);
+    socket.write("close;");
+    socket.flush();
+
+    qDebug() << "## waitForBytesWritten";
+    socket.waitForBytesWritten(socketWait);
+
+    qDebug() << "## waitForReadyRead";
+    socket.waitForReadyRead(200);
+
+    qDebug() << "## waitForDisconnected";
+    socket.waitForDisconnected(socketWait);
+    qDebug() << "## done";
+}
+
+// Verify that sending one echo command and receiving the reply works
+void SockifySocketsTest::echo()
+{
+    QTcpSocket *socket = new QTcpSocket();
+    socket->connectToHost(hostName, port);
+
+    QByteArray message = "Hello, echo server!";
+
+    QObject::connect(socket, &QAbstractSocket::connected, [socket, message]() {
+        QByteArray command = "echo:" + message + ';';
+        socket->write(command);
+        socket->flush();
+    });
+
+    QByteArray *reply = new QByteArray();
+    QObject::connect(socket, &QIODevice::readyRead, [socket, reply, message]() {
+        *reply += socket->readAll();
+        if (reply->contains(';')) {
+            bool match = (*reply == message + ';');
+            socket->disconnectFromHost();
+            socket->deleteLater();
+            delete reply;
+            QtWasmTest::completeTestFunction(match ? QtWasmTest::TestResult::Pass : QtWasmTest::TestResult::Fail, std::string());
+        }
+    });
+}
+
+void SockifySocketsTest::echoMultipleMessages()
+{
+    const int count = 20;
+
+    QTcpSocket *socket = new QTcpSocket();
+    socket->connectToHost(hostName, port);
+    QByteArray message = "Hello, echo server!";
+
+    QObject::connect(socket, &QAbstractSocket::connected, [socket, message]() {
+        QByteArray command = "echo:" + message + ';';
+        for (int i = 0; i < count; ++i) {
+            quint64 written = socket->write(command);
+            if (written != quint64(command.size()))
+                qFatal("Unable to write to socket");
+        }
+        socket->flush();
+    });
+
+    QByteArray expectedReply;
+    for (int i = 0; i < count; ++i)
+        expectedReply += (message + ';');
+    QByteArray *receivedReply = new QByteArray;
+    QObject::connect(socket, &QIODevice::readyRead, [socket, receivedReply, expectedReply]() {
+        QByteArray reply = socket->readAll();
+        *receivedReply += reply;
+
+        if (*receivedReply == expectedReply) {
+            socket->disconnectFromHost();
+            socket->deleteLater();
+            delete receivedReply;
+            QtWasmTest::completeTestFunction();
+        }
+    });
+}
+
+void SockifySocketsTest::echoMultipleSockets()
+{
+    const int connections = 5;
+    auto guard = CompleteTestFunctionRefGuard::create();
+
+    QByteArray message = "Hello, echo server!";
+
+    for (int i = 0; i < connections; ++i) {
+        guard->ref();
+
+        QTcpSocket *socket = new QTcpSocket();
+        socket->connectToHost(hostName, port);
+
+        QObject::connect(socket, &QAbstractSocket::connected, [socket, message]() {
+            QByteArray command = "echo:" + message + ';';
+            socket->write(command);
+            socket->flush();
+        });
+
+        QObject::connect(socket, &QIODevice::readyRead, [guard, socket, message]() {
+            QByteArray reply = socket->readAll();
+            socket->disconnectFromHost();
+            socket->deleteLater();
+            if (reply != (message + ';'))
+                qFatal("echo_multiple received incorrect reply");
+            guard->deref();
+        });
+    }
+}
+
+void SockifySocketsTest::remoteClose()
+{
+    QTcpSocket *socket = new QTcpSocket();
+    socket->connectToHost(hostName, port);
+    QObject::connect(socket, &QAbstractSocket::connected, [socket]() {
+        socket->write("close;");
+        socket->flush();
+    });
+    QObject::connect(socket, &QAbstractSocket::disconnected, [socket]() {
+        qDebug() << "disconnected";
+        socket->deleteLater();
+        QtWasmTest::completeTestFunction();
+    });
+}
+
+#if QT_CONFIG(thread)
+
+void SockifySocketsTest::thread_echo()
+{
+    auto started = []() {
+        blockingEchoTest();
+        QThread::currentThread()->quit();
+    };
+
+    auto finished = [](){
+        QtWasmTest::completeTestFunction();
+    };
+
+    TestThread::create(started, finished);
+}
+
+void SockifySocketsTest::thread_echoMultipleSockets()
+{
+    const int connections = 2; // TODO: test more threads
+    auto guard = CompleteTestFunctionRefGuard::create();
+    guard->ref();
+
+    for (int i = 0; i < connections; ++i) {
+        guard->ref();
+        auto started = [](){
+            blockingEchoTest();
+            QThread::currentThread()->quit();
+        };
+
+        auto finished = [guard](){
+            guard->deref();
+        };
+
+        TestThread::create(started, finished);
+    }
+
+    guard->deref();
+}
+
+void SockifySocketsTest::thread_remoteClose()
+{
+    auto started = [](){
+        blockingRemoteClose();
+        QThread::currentThread()->quit();
+    };
+
+    auto finished = [](){
+        QtWasmTest::completeTestFunction();
+    };
+
+    TestThread::create(started, finished);
+}
+
+#endif
+
+#ifdef QT_HAVE_EMSCRIPTEN_ASYNCIFY
+
+// Post an event to the main thread and asyncify wait for it
+void SockifySocketsTest::asyncify_echo()
+{
+    blockingEchoTest();
+    QtWasmTest::completeTestFunction();
+}
+
+void SockifySocketsTest::asyncify_remoteClose()
+{
+    blockingRemoteClose();
+    QtWasmTest::completeTestFunction();
+}
+
+#endif
+
+int main(int argc, char **argv)
+{
+    auto testObject = std::make_shared<SockifySocketsTest>();
+    QtWasmTest::initTestCase<QCoreApplication>(argc, argv, testObject);
+    return 0;
+}
+
+#include "main.moc"
diff --git a/tests/manual/wasm/network/sockify_sockets_auto/sockify_sockets_auto.html b/tests/manual/wasm/network/sockify_sockets_auto/sockify_sockets_auto.html
new file mode 100644
index 0000000000..5376249a71
--- /dev/null
+++ b/tests/manual/wasm/network/sockify_sockets_auto/sockify_sockets_auto.html
@@ -0,0 +1,17 @@
+<!doctype html>
+<script type="text/javascript" src="qtwasmtestlib.js"></script>
+<script type="text/javascript" src="sockify_sockets_auto.js"></script>
+<script>
+    window.onload = async () => {
+        runTestCase(document.getElementById("log"));
+    };
+</script>
+<p> Sockify tunneled sockets auto test.
+
+<p>This test requires running echo_server and <a href=https://github.com/novnc/websockify>websockify</a> (or equivalent) on the host:
+<pre>
+    /path/to/qtbase/tests/manual/wasm/network/echo_server/echo_server
+    websockify 1515 localhost:1516
+</pre>
+
+<div id="log"></div>