Mouseover in Selenium Webdriver

How to handle Mouseover in Selenium Webdriver:

There are many application you will find that when you mouseover then dropdown expand or it's perform an action. You don't need any click or right click of that element.
In that situation how you will handle in Selenium Webdriver? If you find that element ID or xpath or any other locator and click on that element but it will not work for Selenium Webdriver.
You have to use Action Class to perform this type of action otherwise it will not work. Please see the following image for code.

How to handle Hidden Element in Selenium webdriver:


If you find any element type is 'Hidden' and you try to click that element by regular click then it will not work in Selenium Webdriver. To handle hidden element you should use Javascriptexecutor. With the help of javascriptexecutor you will be able to overcome this situation. Please see the following image for code.
Mouseover and Hidden element in Selenium webdriver

Selenium Download Link

Selenium is one of the open source Software Testing (Functional) tool. For testing with selenium we need some software. Here you will find that software download link. The list as follows:

The above software are needed for Selenium testing.

TestNG Annotations

TestNG Annotations are as follows:
@Test
@BeforeTest, @AfterTest,
@BeforeMethod, @AfterMethod,
@BeforeClass, @AfterClass,
@BeforeSuite, @AfterSuite,  
@BeforeGroups, @AfterGroups.

Handle Invisible Element

If any Element of the application sometimes visible or sometimes not visible - How it should be handle in Selenium WebDriver?

In this situation create script while the element is visible. After creating script the code should be surrounded by Try ..... Catch method or with the help of IF ..... Else statement. 
I hope it should be solved.

Functional Testing By Selenium

Selenium is a Functional Testing Tool. It's support Java, C#, PHP, Python, Ruby, Perl & more languages. But Java is widely used.
I will try to cover Selenium with Java.

01)   Selenium IDE
02)  Selenium RC
03)  Selenium WebDriver

Selenium IDE is a Firefox Addin. It's support record & Play back.

Selenium RC is known as Selenium 1.
Selenium WebDriver knows as Selenium 2.