From fc011491216840187f7a41a024062d61def3e422 Mon Sep 17 00:00:00 2001
From: Michele Caini <michele.caini@gmail.com>
Date: Mon, 3 Mar 2025 08:49:36 +0100
Subject: [PATCH] test: registry emplace_or_replace empty - close #1228

---
 test/entt/entity/registry.cpp | 15 +++++++++++++++
 1 file changed, 15 insertions(+)

diff --git a/test/entt/entity/registry.cpp b/test/entt/entity/registry.cpp
index 674d7e00c..98cc5fb77 100644
--- a/test/entt/entity/registry.cpp
+++ b/test/entt/entity/registry.cpp
@@ -1100,6 +1100,21 @@ TEST(Registry, EmplaceOrReplace) {
     ASSERT_EQ(ref, 0);
 }
 
+TEST(Registry, EmplaceOrReplaceEmpty) {
+    entt::registry registry{};
+    const auto entity = registry.create();
+
+    ASSERT_FALSE(registry.all_of<test::empty>(entity));
+
+    registry.emplace_or_replace<test::empty>(entity);
+
+    ASSERT_TRUE(registry.all_of<test::empty>(entity));
+
+    registry.emplace_or_replace<test::empty>(entity);
+
+    ASSERT_EQ(registry.storage<test::empty>().size(), 1u);
+}
+
 TEST(Registry, EmplaceOrReplaceAggregate) {
     entt::registry registry{};
     const auto entity = registry.create();