Tasj course lesson 5-2 - Implementing Precondition-helpers - Hints. Wait for JS on page load - notes_

tasj-course-lesson-5-2-implementing-precondition-helpers-hints.txt

*** Given impl hints

JS example:
  localStorage.setItem("todos-troopjs", "[{\"completed\":true, \"title\":\"new\"}]")

Interface:
  
  givenAllActive("a", "b", "c")
  givenAllCompleted("a", "b", "c")
  given(true, "a", "b", "c")
  given(false, "a", "b", "c")
  given("active", "a", "b", "c")       (transform "active" to false via if or ternar operator)
  given(active, "a", "b", "c")         (~ as variable)
  given(ACTIVE, "a", "b", "c")         (~ as final "constant")
  given(TaskType.ACTIVE, "a", "b", "c")     (~ as value of ENUM type)
  
  given(new Task("a", TaskType.ACTIVE), new Task("b", TaskType.COMPLETED))
  given(new Task("a", ACTIVE), new Task("b", COMPLETED))
  given(aTask("a", ACTIVE), aTask("b", COMPLETED))
  
  given(
    aTask("a", ACTIVE), 
    aTask("b", COMPLETED))

String operations
  concatenation             "Hello, " + name + "!";
  String.format             String.format("Hellow, %s!", name);
  StringBuilder             new StringBuilder("Hellow, ").add(name).add("!");
                            StringBuilder result = new StringBuilder("Hellow, ");
                            result.add(name);
                            result.add("!");
                            return result;
  
  BackSlashes               "\n" -> new line
                            "\\n" -> \n
  
  
User for and ifs when needed
  It's not a test logic implementation => You are free to use ifs and loops if needed.
  
Smart open with if

  if (not $("...").is(visible)) => open page

Method Overloading

  given(
    aTask("a", ACTIVE), 
    aTask("b", ACTIVE))
    
  given("a", "b")
  
  
Wait for JS loading
  
  http://barancev.github.io/page-loading-complete/
  http://barancev.github.io/how-selenium-waits-for-page-to-load/
  
  fixed version of todomvc:
    https://todomvc4tasj.herokuapp.com/
  
  proper code change:
    add:
      $("#new-todo").shouldBe(enabled).setValue(text).pressEnter()
    
    
  example of good frontend implementation: https://wishround.com/ua/
    with disabled UI while loading JS