qt 6.5.1 original

tests/auto/dbus/qdbusconnection_no_libdbus/CMakeLists.txt

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+# Copyright (C) 2022 The Qt Company Ltd.
+# SPDX-License-Identifier: BSD-3-Clause
+
+#####################################################################
+## tst_qdbusconnection_no_libdbus Test:
+#####################################################################
+
+qt_internal_add_test(tst_qdbusconnection_no_libdbus
+    SOURCES
+        ../qdbusconnection_no_bus/tst_qdbusconnection_no_bus.cpp
+    DEFINES
+        SIMULATE_LOAD_FAIL
+        tst_QDBusConnectionNoBus=tst_QDBusConnectionNoLibDBus1
+    LIBRARIES
+        Qt::DBus
+)

tests/auto/dbus/qdbusconnection_no_libdbus/tst_qdbusconnection_no_libdbus.cpp

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+// Copyright (C) 2016 The Qt Company Ltd.
+// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR GPL-3.0-only WITH Qt-GPL-exception-1.0
+#include <qcoreapplication.h>
+#include <qdebug.h>
+
+#include <QTest>
+
+
+#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"
+