Add watchInterfaceEvents() listener

src/main_test.go

@@ -14,7 +14,7 @@ func TestMainCompiles(t *testing.T) {
 		// This would run main(), but we skip it in tests
 		return
 	}
-	
+
 	// Just test that we can access main package
 	t.Log("Main package compiles successfully")
-}
+}