Step

step is single call to a method on the SUT or local help classes . several options are available :

get_Result : will retrieve the call method result

then : will run in async mode and let you define a Listener to method in the step flow

the step & the "then" command can run in three ways

regular - like any java method execute

BookStore bookStore =  new Step.App_example_books_BookStore_addAllBooks(books).get_Result();

callback - use callback to retrieve the result

CallFuture<java.lang.String> future = new CallFuture<>();
new Step.App_example_books_BookStore_loopOverBooks().then(  
        Listener.app_example_books_Book_getTitle.waitToResult(),future);

async - use result Handler

new Step.App_example_books_BookStore_loopOverBooks().then(  
        Listener.app_example_books_Book_getTitle.waitToResult(),res ->{  
            Assert.assertTrue(res.result().equals("t1"));  
  });