[tracking] Add a test executable

- just a stub, hardly tests useful functionality

src/modules/tracking/CMakeLists.txt

@@ -15,3 +15,9 @@ calamares_add_plugin( tracking
     SHARED_LIB
 )
 
+calamares_add_test(
+    trackingtest
+    SOURCES
+        Tests.cpp
+        Config.cpp
+)

src/modules/tracking/Tests.cpp

@@ -0,0 +1,60 @@
+/* === This file is part of Calamares - <https://github.com/calamares> ===
+ *
+ *   SPDX-FileCopyrightText: 2020 Adriaan de Groot <groot@kde.org>
+ *   SPDX-License-Identifier: GPL-3.0-or-later
+ *   License-Filename: LICENSE
+ */
+
+#include "Config.h"
+
+#include "utils/Logger.h"
+
+#include <QtTest/QtTest>
+#include <QObject>
+
+class TrackingTests : public QObject
+{
+    Q_OBJECT
+public:
+    TrackingTests();
+    ~TrackingTests() override;
+
+private Q_SLOTS:
+    void initTestCase();
+    void testEmptyConfig();
+};
+
+TrackingTests::TrackingTests()
+    : QObject()
+{
+}
+
+TrackingTests::~TrackingTests()
+{
+}
+
+void TrackingTests::initTestCase()
+{
+    Logger::setupLogLevel( Logger::LOGDEBUG );
+    cDebug() << "Tracking test started.";
+}
+
+void TrackingTests::testEmptyConfig()
+{
+    Logger::setupLogLevel( Logger::LOGDEBUG );
+
+    Config* c = new Config;
+    QVERIFY( c->generalPolicy().isEmpty() );
+    QVERIFY( c->installTracking() );  // not-nullptr
+
+    cDebug() << "Install" << Logger::Pointer( c->installTracking() );
+
+    delete c;  // also deletes the owned tracking-configs
+}
+
+
+QTEST_GUILESS_MAIN( TrackingTests )
+
+#include "utils/moc-warnings.h"
+
+#include "Tests.moc"