Add option to use a local socket for QML debugging

Using a TCP debug server comes with a number of drawbacks. It has a
larger overhead than other connection types, the application has to
be able to access the network and there has to be an open port we can
find somehow.

Change-Id: Ia7fb24006b89419988c6504797303d84c3aa1bbc
Reviewed-by: Simon Hausmann <simon.hausmann@theqtcompany.com>

3 files changed, 177 insertions, 0 deletions

diff --git a/tests/auto/qml/debugger/qqmldebuglocal/qqmldebuglocal.pro b/tests/auto/qml/debugger/qqmldebuglocal/qqmldebuglocal.pro
new file mode 100644
index 0000000000..b612da11de
--- /dev/null
+++ b/tests/auto/qml/debugger/qqmldebuglocal/qqmldebuglocal.pro
@@ -0,0 +1,16 @@
+CONFIG += testcase
+TARGET = tst_qqmldebuglocal
+osx:CONFIG -= app_bundle
+
+HEADERS += ../shared/qqmldebugtestservice.h
+
+SOURCES += tst_qqmldebuglocal.cpp \
+           ../shared/qqmldebugtestservice.cpp
+
+INCLUDEPATH += ../shared
+include(../shared/debugutil.pri)
+
+CONFIG += parallel_test
+QT += qml-private testlib gui-private core-private
+
+DEFINES += QT_DISABLE_DEPRECATED_BEFORE=0 QT_QML_DEBUG_NO_WARNING
diff --git a/tests/auto/qml/debugger/qqmldebuglocal/tst_qqmldebuglocal.cpp b/tests/auto/qml/debugger/qqmldebuglocal/tst_qqmldebuglocal.cpp
new file mode 100644
index 0000000000..b1219eabe4
--- /dev/null
+++ b/tests/auto/qml/debugger/qqmldebuglocal/tst_qqmldebuglocal.cpp
@@ -0,0 +1,161 @@
+/****************************************************************************
+**
+** Copyright (C) 2015 The Qt Company Ltd.
+** Contact: http://www.qt.io/licensing/
+**
+** This file is part of the test suite of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:LGPL21$
+** 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 http://www.qt.io/terms-conditions. For further
+** information use the contact form at http://www.qt.io/contact-us.
+**
+** GNU Lesser General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU Lesser
+** General Public License version 2.1 or version 3 as published by the Free
+** Software Foundation and appearing in the file LICENSE.LGPLv21 and
+** LICENSE.LGPLv3 included in the packaging of this file. Please review the
+** following information to ensure the GNU Lesser General Public License
+** requirements will be met: https://www.gnu.org/licenses/lgpl.html and
+** http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
+**
+** As a special exception, The Qt Company gives you certain additional
+** rights. These rights are described in The Qt Company LGPL Exception
+** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#include <qtest.h>
+#include <QSignalSpy>
+#include <QTimer>
+#include <QHostAddress>
+#include <QDebug>
+#include <QThread>
+#include <ctime>
+
+#include "debugutil_p.h"
+#include "qqmldebugtestservice.h"
+
+QString fileName;
+
+class tst_QQmlDebugLocal : public QObject
+{
+    Q_OBJECT
+
+private:
+    QQmlDebugConnection *m_conn;
+
+    bool connect();
+
+signals:
+    void waiting();
+    void parallel();
+
+private slots:
+    void initTestCase();
+
+    void name();
+    void state();
+    void sendMessage();
+};
+
+void tst_QQmlDebugLocal::initTestCase()
+{
+    const QString waitingMsg = QString("QML Debugger: Connecting to socket %1...").arg(fileName);
+    QTest::ignoreMessage(QtDebugMsg, waitingMsg.toLatin1().constData());
+
+    m_conn = new QQmlDebugConnection(this);
+    m_conn->startLocalServer(fileName);
+
+    new QQmlEngine(this);
+
+    QQmlDebugTestClient client("tst_QQmlDebugLocal::handshake()", m_conn);
+    QQmlDebugTestService service("tst_QQmlDebugLocal::handshake()");
+
+    for (int i = 0; i < 50; ++i) {
+        // try for 5 seconds ...
+        if (m_conn->waitForConnected(100))
+            break;
+    }
+
+    QVERIFY(m_conn->isConnected());
+
+    QTRY_VERIFY(QQmlDebugService::hasDebuggingClient());
+    QTRY_COMPARE(client.state(), QQmlDebugClient::Enabled);
+}
+
+void tst_QQmlDebugLocal::name()
+{
+    QString name = "tst_QQmlDebugLocal::name()";
+
+    QQmlDebugClient client(name, m_conn);
+    QCOMPARE(client.name(), name);
+}
+
+void tst_QQmlDebugLocal::state()
+{
+    {
+        QQmlDebugConnection dummyConn;
+        QQmlDebugClient client("tst_QQmlDebugLocal::state()", &dummyConn);
+        QCOMPARE(client.state(), QQmlDebugClient::NotConnected);
+        QCOMPARE(client.serviceVersion(), -1.0f);
+    }
+
+    QQmlDebugTestClient client("tst_QQmlDebugLocal::state()", m_conn);
+    QCOMPARE(client.state(), QQmlDebugClient::Unavailable);
+
+    {
+        QQmlDebugTestService service("tst_QQmlDebugLocal::state()", 2);
+        QTRY_COMPARE(client.state(), QQmlDebugClient::Enabled);
+        QCOMPARE(client.serviceVersion(), 2.0f);
+    }
+
+    QTRY_COMPARE(client.state(), QQmlDebugClient::Unavailable);
+
+    // duplicate plugin name
+    QTest::ignoreMessage(QtWarningMsg, "QQmlDebugClient: Conflicting plugin name \"tst_QQmlDebugLocal::state()\"");
+    QQmlDebugClient client2("tst_QQmlDebugLocal::state()", m_conn);
+    QCOMPARE(client2.state(), QQmlDebugClient::NotConnected);
+
+    QQmlDebugClient client3("tst_QQmlDebugLocal::state3()", 0);
+    QCOMPARE(client3.state(), QQmlDebugClient::NotConnected);
+}
+
+void tst_QQmlDebugLocal::sendMessage()
+{
+    QQmlDebugTestService service("tst_QQmlDebugLocal::sendMessage()");
+    QQmlDebugTestClient client("tst_QQmlDebugLocal::sendMessage()", m_conn);
+
+    QByteArray msg = "hello!";
+
+    QTRY_COMPARE(client.state(), QQmlDebugClient::Enabled);
+
+    client.sendMessage(msg);
+    QByteArray resp = client.waitForResponse();
+    QCOMPARE(resp, msg);
+}
+
+int main(int argc, char *argv[])
+{
+    fileName = QString::fromLatin1("tst_QQmlDebugLocal%1").arg(time(0));
+
+    int _argc = argc + 1;
+    char **_argv = new char*[_argc];
+    for (int i = 0; i < argc; ++i)
+        _argv[i] = argv[i];
+    char *arg = strdup((QString::fromLatin1("-qmljsdebugger=file:") + fileName).toLatin1().data());
+    _argv[_argc - 1] = arg;
+
+    QGuiApplication app(_argc, _argv);
+    tst_QQmlDebugLocal tc;
+    return QTest::qExec(&tc, _argc, _argv);
+    delete _argv;
+}
+
+#include "tst_qqmldebuglocal.moc"
diff --git a/tests/auto/qml/debugger/qqmldebuglocal/tst_qqmldebuglocal.pro b/tests/auto/qml/debugger/qqmldebuglocal/tst_qqmldebuglocal.pro
new file mode 100644
index 0000000000..e69de29bb2
--- /dev/null
+++ b/tests/auto/qml/debugger/qqmldebuglocal/tst_qqmldebuglocal.pro