diff --git a/registry/registry_test.go b/registry/registry_test.go
index 0ee62f1..abe06ba 100644
--- a/registry/registry_test.go
+++ b/registry/registry_test.go
@@ -9,6 +9,12 @@ import (
 
 func TestRegisterType(t *testing.T) {
 	RegisterType(reflect.TypeOf((*TestStruct)(nil)), &cda.ComponentAnnotation{})
+	RegisterType(reflect.TypeOf((*TestStruct)(nil)), &cda.ComponentAnnotation{
+		Names: []string{"test1", "test2"},
+	})
+	RegisterType(reflect.TypeOf((*TestStruct)(nil)), &cda.ComponentAnnotation{
+		Names: []string{"test1", "test2"},
+	})
 }
 
 type TestStruct struct {