Selenium Design Patterns-Page Object Model and Page Factory Class

Page Object in selenium is a robust framework which offers service based approach in Automation.
There are services associated with every page which are nothing but Objects.

Case Study : -

I'll demonstrate page object model for a simple login page as shown below : -













This page can be transformed into an page model approach as shown below : -



Well,Here i have just made a list and separated few of the outstanding similar items in between UI items and its properties(Services).

Few things to notice is when there is a successful login,Home Page loads and when there is a Login Failure, user is on the same page.

Next improved/transformed view can be found below : -










Now as shown above the declaration changed  in accordance to our original model.

Role Of Page Factory Class:

Page Factory class used to model the UI elements in a page object model Similar to this : -

@FindBy(how = How.NAME, using = "username")
    private WebElement username;

Also it replaces the class instantiation by introducing initElements.



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