public void MessageResolveableGetMessage() { string[] codes = { "field.firstname" }; DefaultMessageSourceResolvable dmr = new DefaultMessageSourceResolvable(codes, null); messageSource.ResourceManagers = resourceManagerList; Assert.AreEqual(messageSource.GetMessage("error.required", CultureInfo.CurrentCulture, dmr, "dude!"), "First name is required dude!", "message not as expected"); }