Add unit and integration tests for DAOs, Translator, EventBus, and SyncScheduler (Phase 9 - Testing & QA)

tests/unit/test_eventbus.cpp

@@ -0,0 +1,34 @@
+#include <QtTest/QtTest>
+#include "../../src/core/eventbus.h"
+#include "../../src/core/events.h"
+
+class TestEventBus : public QObject
+{
+    Q_OBJECT
+private slots:
+    void testPublishAndSubscribe();
+};
+
+void TestEventBus::testPublishAndSubscribe()
+{
+    bool received = false;
+    int value = 0;
+
+    // Subscribe to an event of type int
+    auto subscription = EventBus::instance().subscribe<int>([&](int data) {
+        received = true;
+        value = data;
+    });
+
+    // Publish an event
+    EventBus::instance().publish<int>(42);
+
+    // Check that we received the event
+    QVERIFY(received);
+    QCOMPARE(value, 42);
+
+    // Unsubscribe (optional, subscription goes out of scope)
+}
+
+QTEST_MAIN(TestEventBus)
+#include "test_eventbus.moc"