diff --git a/test/core/definitions/serialization_test.dart b/test/core/definitions/serialization_test.dart
index ce6516a5..3d1c413a 100644
--- a/test/core/definitions/serialization_test.dart
+++ b/test/core/definitions/serialization_test.dart
@@ -350,5 +350,28 @@ void main() {
         );
       }
     });
+
+    test("AceSecurityScheme", () async {
+      final aceSecuritySchemeJson = {
+        "scheme": "ace:ACESecurityScheme",
+        "as": "https://example.org",
+        "audience": "foobar",
+        "scopes": ["foo", "bar"],
+        "cnonce": true,
+      };
+
+      final parsedFields = {"scheme"};
+
+      final aceSecurityScheme = AceSecurityScheme.fromJson(
+        aceSecuritySchemeJson,
+        PrefixMapping(),
+        parsedFields,
+      );
+
+      expect(
+        aceSecuritySchemeJson,
+        aceSecurityScheme.toJson(),
+      );
+    });
   });
 }