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diff --git a/tests/auto/dbus/qdbusconnection_no_libdbus/tst_qdbusconnection_no_libdbus.cpp b/tests/auto/dbus/qdbusconnection_no_libdbus/tst_qdbusconnection_no_libdbus.cpp
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+++ b/tests/auto/dbus/qdbusconnection_no_libdbus/tst_qdbusconnection_no_libdbus.cpp
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+/****************************************************************************
+**
+** Copyright (C) 2016 The Qt Company Ltd.
+** Contact: https://www.qt.io/licensing/
+**
+** This file is part of the test suite of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:GPL-EXCEPT$
+** 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.
+**
+** GNU General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU
+** General Public License version 3 as published by the Free Software
+** Foundation with exceptions as appearing in the file LICENSE.GPL3-EXCEPT
+** included in the packaging of this file. Please review the following
+** information to ensure the GNU General Public License requirements will
+** be met: https://www.gnu.org/licenses/gpl-3.0.html.
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+#include <qcoreapplication.h>
+#include <qdebug.h>
+
+#include <QtTest/QtTest>
+#include <QtDBus/QtDBus>
+
+#include <stdlib.h>
+
+/* This test uses an appless main, to ensure that no D-Bus stuff is implicitly done
+ It also sets the magic "QT_SIMULATE_DBUS_LIBFAIL" env variable, that is only available
+ in developer builds. That env variable simulates a D-Bus library load fail.
+
+ In no case should the QDBus module crash because D-Bus libs couldn't be loaded */
+
+class tst_QDBusConnectionNoBus : public QObject
+{
+ Q_OBJECT
+
+public:
+ tst_QDBusConnectionNoBus()
+ {
+ qputenv("DBUS_SESSION_BUS_ADDRESS", "unix:abstract=/tmp/does_not_exist");
+#ifdef SIMULATE_LOAD_FAIL
+ qputenv("QT_SIMULATE_DBUS_LIBFAIL", "1");
+#endif
+ }
+
+private slots:
+ void connectToBus();
+};
+
+
+void tst_QDBusConnectionNoBus::connectToBus()
+{
+ int argc = 0;
+ QCoreApplication app(argc, 0);
+
+ QDBusConnection con = QDBusConnection::sessionBus();
+
+ QVERIFY(!con.isConnected()); // if we didn't crash here, the test passed :)
+}
+
+QTEST_APPLESS_MAIN(tst_QDBusConnectionNoBus)
+
+#include "tst_qdbusconnection_no_libdbus.moc"
+