public void CorrectRequestForMigrate() { var factory = Substitute.For <IConnection>(); var client = new DatabasesClient(factory); var migrate = new Models.Requests.MigrateDatabase(); client.Migrate("1", migrate); var parameters = Arg.Is <List <Parameter> >(list => (string)list[0].Value == "1"); factory.Received().ExecuteRaw("databases/{id}/migrate", parameters, migrate, Method.POST); }