public void WorkflowDefinition()
        {
            var sut = new WorkflowDefinition <string, Customer>("workflow1");

            sut.States.Add(new WorkflowState <string, Customer>("state1"));
            sut.Version = Assembly.GetExecutingAssembly().GetName().Version;

            var result = sut.Serialize();

            result.ShouldNotBeNullOrEmpty();
        }