initial

external/entt/test/lib/emitter/shared/lib.cpp

@@ -0,0 +1,10 @@
+#include <entt/core/attribute.h>
+#include "../../../common/boxed_type.h"
+#include "../../../common/emitter.h"
+#include "../../../common/empty.h"
+
+ENTT_API void emit(test::emitter &emitter) {
+    emitter.publish(test::empty{});
+    emitter.publish(test::boxed_int{2});
+    emitter.publish(test::boxed_int{3});
+}

external/entt/test/lib/emitter/shared/main.cpp

@@ -0,0 +1,23 @@
+#include <functional>
+#include <gtest/gtest.h>
+#include <entt/core/attribute.h>
+#include "../../../common/boxed_type.h"
+#include "../../../common/emitter.h"
+
+ENTT_API void emit(test::emitter &);
+
+TEST(Lib, Emitter) {
+    test::emitter emitter;
+    int value{};
+
+    ASSERT_EQ(value, 0);
+
+    emitter.on<test::boxed_int>([&](test::boxed_int msg, test::emitter &owner) {
+        value = msg.value;
+        owner.erase<test::boxed_int>();
+    });
+
+    emit(emitter);
+
+    ASSERT_EQ(value, 2);
+}