Web Driver Architecture​ | Best Selenium Online Training in Hyderabad

Best Selenium Online Training In Hyderabad

Introduction​

Selenium WebDriver is one of the most powerful and popular tools of Selenium toolkit. WebDriver extended version to Selenium RC. WebDriver extends its support to many latest browsers and platforms, unlike Selenium IDE. WebDriver also doesn’t need Selenium server to start before execution of the Selenium RC.

Selenium RC in aggregation with WebDriver API is Selenium 2.0. Selenium was so developed to support dynamic web pages and Ajax calls. It also supports various drivers to exercise web-based mobile testing.

Architecture​

WebDriver is a web-based testing tool with Selenium RC. The tool built on the fundamental where isolated clients create for each of the web browsers.

WebDriver makes direct calls to the Web browser. The entire test script executes in this fashion. WebDriver uses the browsers support and capabilities to automation.

Selenium RC and Selenium WebDriver doesn’t need start Selenium Server. The test script execution starts before launching. The benefit and may or may not need Selenium Server. The test execution on the same machine Perform the browser is residing.

Exceptional Cases when Selenium Server must with WebDriver​

•    When the user wishes to execute test scripts on the remote machine.

•    When the user wishes to execute test scripts on HtmlUnit Driver.

•    When the user wishes to execute test scripts on many platforms.

WebDriver is an object-oriented framework that works on OS layer. It utilizes the browser’s native compatibility to automation without using entity. The increasing demand it has gained a large popularity. The most used open source automation testing tool. 

Features of Selenium WebDriver 

Browser Compatibility​

WebDriver supports a diverse range of web browsers and their versions. It supports all the conventional browsers also to some unique and rare browsers. Like HtmlUnit browser unlike Selenium RC and Selenium IDE.

HtmlUnit Browser executes the test scripts analogous to other browsers. The fact runs in the headless mode. GUI-less mode and the user won’t be able to view the test script execution. That the test script execution transpires in headless mode. Thus the execution speed takes a roll and quickens the execution.

WebDriver also supports web based mobile testing. Thus it provides AndroidDriver and IphoneDriver to back web based mobile testing.

Language Support

The sessions we learned to create scripts using record and playback functionality. We also saw how to create them using Selenium commands. While creating such test scripts, we come across various constraints.

Some of the limitations imposed by Selenium IDE are:

•    Doesn’t support iterations and conditional statements

•    Doesn’t support loops

•    Doesn’t support error handling

•    Doesn’t support test script dependency

Selenium WebDriver supported programming languages are:

1.    Java

2.    C#

3.    PHP

4.    Pearl

5.    Ruby

6.    Python

Speed​

When compared to other tools of Selenium suite. WebDriver turns out to be the fastest tool amongst all. The communication is not channelized via any external intervention. Rather the tool communicates with the browser same as that of any user. Thus, WebDriver takes advantage of the browser’s native compatibility towards automation.

Other tools from Selenium suite like Selenium RC. It doesn’t communicate with the web browser. Client libraries communicate with Selenium Remote Control Server. Remote Control communicates with a Selenium Core. This, in turn, communicates with the web browser. Hence, this sort of twisted communication results on execution speed. 

Drivers, Methods, and Classes

WebDriver offers a wide range of solutions to challenges in Automation Testing. It helps us to deal with complex types of web elements. Like checkboxes, dropdowns, and alerts with the help of dynamic finders.

The mobile WebDriver API has introduced the key technologies to enter this horizon. WebDriver enables the user to perform web-based mobile testing. It provides two of the essentials drivers to perform web-based mobile testing.

•    AndriodDriver

•    IphoneDriver

WebDriver API is simple and easy. It doesn’t include commands. Selenium RC has many commands.