BEGINNING WITH SELENIUM

-

The 'WebDriver' Interface

The WebDriver interface is used as a reference to its browser class. Following image is the Hierarchy of WebDriver.


  1. SearchContext is a top most interface. The methods in this will be abstract as SearchContext is an interface.
  2. WebDriver is also an interface which extends SearchContext. WebDriver has nested interfaces names Window, Navigation, Timeouts etc. These interfaces are used to perform specific operation like back(), forward() etc.
  3. RemoteWebDriver is a fully implemented class which implements Webdriver, Javascript Executor and TakesScreenshot. As this class is fully implemented class, which means it defines body for all inherited methods.
  4. Then we have browser specific driver classes like ChromeDriver(), EdgeDriver(), FirefoxDriver() etc.
To execute the tests with Mozilla Firefox browser we generally write
WebDriver driver = new FirefoxDriver();

To execute the tests with Google Chrome browser we generally write
WebDriver driver = new ChromeDriver();

To execute the tests with Internet Explorer browser we generally write
WebDriver driver = new InternetExplorerDriver();

In Selenium 2.0, Firefox driver is used to be maintained by selenium. For other browsers we download respective binaries. Download links to some important browsers are as below:
  1. Chrome Driver
  2. Internet Explorer Driver
But from Selenium 3.0, Firefox has its own driver which is GeckoDriver

Add the following set of code before instantiating WebDriver
System.setProperty("<propertyname>", "<path of the downloaded exe of the browser binaries>");

Where property name are the following:
Mozilla Firefox browser - webdriver.gecko.driver
Google Chrome browser - webdriver.chrome.driver
Internet Explorer browser - webdriver.ie.driver

Comments

Post a Comment

Popular posts from this blog

Setting up Maven in Eclipse editor

-
Image
Why MAVEN? Maven (which means accumulator of knowledge ) is a build tool used to build and manage any Java-based project. It helps us to manage the daily tasks for Java developers easily. Maven provides simple yet  effective dependency management . It uses an XML file (POM.xml) to describe the project that we are building, the dependencies of the software with regards to third-party modules and parts, the build order, as well as the needed plugins. Maven downloads libraries and plugins from the different repositories and then puts them all in a cache on your local machine (C:\Users\ \.m2). Why Maven is used in Selenium? While working in selenium, we have to manage various dependencies (external JAR files) to execute our project, such as: Selenium-Java JARS, Log4j JARS, Apache POI jars etc. We can use MAVEN to reduce our efforts on managing these dependencies by adding them to POM.xml file. When we restore our OS / try to execute the project in different machine, the...
Read more

SELENIUM

-
Image
Why Selenium? There are many functional test tools available as we have already discussed before. We prefer selenium over other testing tools because of the following reasons: It is an open source tool, hence zero cost.  It supports many programming languages (i.e., Java, C#, Ruby, Phython etc.) As many people use Selenium tool today, large number of communities exists for help. Selenium’s Tool Suite It consists of multiple tools as discussed below: Selenium IDE Selenium IDE (Integrated Development Environment) is a Firefox and chrome plugin, with an easy to use interface. It is record and play tools, where user records an action in the web page, store it and play the same tests with new values to it. User can export them as a reusable script in one of many programming languages. Selenium 1 (also known as Selenium RC or Remote Control) Selenium RC was the main Selenium project for a long time, before the WebDriver was brought up in Selenium 2, the newest and...
Read more