Step 170: UI event bus

editor/tests/step170_test.cpp

@@ -0,0 +1,37 @@
+// Step 170: UIEventBus unit checks.
+
+#include <cassert>
+#include <string>
+
+#include "UIEventBus.h"
+
+int main() {
+    UIEventBus bus;
+    int count = 0;
+    std::string lastDetail;
+
+    bus.subscribe(UIEventType::ASTChanged, [&](const UIEvent& ev) {
+        ++count;
+        lastDetail = ev.detail;
+    });
+
+    bus.publish(UIEventType::ASTChanged, "file.cpp", "first", 1.0);
+    assert(count == 1);
+    assert(lastDetail == "first");
+
+    bus.publishDebounced(UIEventType::ASTChanged, "file.cpp", "debounce", 2.0, 0.5);
+    bus.tick(2.3);
+    assert(count == 1);
+    bus.tick(2.6);
+    assert(count == 2);
+    assert(lastDetail == "debounce");
+
+    bus.publishDebounced(UIEventType::ASTChanged, "file.cpp", "last", 3.0, 0.5);
+    bus.publishDebounced(UIEventType::ASTChanged, "file.cpp", "last2", 3.2, 0.5);
+    bus.tick(3.8);
+    assert(count == 3);
+    assert(lastDetail == "last2");
+
+    printf("step170_test: all assertions passed\n");
+    return 0;
+}