Selenium is an open-source tool for automating web application testing through the use of scripts. It allows tests to be written in popular languages like Java, C#, PHP, Python and Ruby. The document outlines the main components of Selenium including Selenium IDE for recording and playing back tests, the Selenium client API for integrating tests into programming languages, Selenium Remote Control for running tests on remote machines, and Selenium Grid for distributing tests across multiple machines. It recommends starting with Selenium IDE to learn the basics before integrating tests into programming languages using the client API.

1. Step By Step Instructions To Execute
Selenium Automation Testing

2. Automation Testing enables pre-scripted tests to run executable codes of web applications to
verify that it matches the required specifications. This blog explains in a step by step way how
to perform Selenium Automation Testing.

3. Selenium is an open-source programming testing system for web applications. Selenium has a
record/playback device for making and running tests without the need to gain proficiency
with a test scripting language.

4. It gives test space explicit language to creator tests in well-known languages like Java, C#,
PHP, Python, Ruby, and the sky is the limit from there. Selenium empowers testers to run
their tests against present-day internet browsers and conveys on Mac, Windows, and Linux.

5. Segments
Selenium has a lot of components that structure the center layer for the functionalities; each
has its specific use.

6. Selenium IDE
Selenium IDE is a coordinated advancement condition (IDE) for Selenium tests. It very well
may be actualized as a Firefox Addon; it enables tests to be recorded, altered, and repaired.

7. Selenium customer API
As an option in contrast to composing tests in Selenese ( a scripting language for creating
tests), users can likewise compose tests in different languages, which at that point speak
with Selenium by calling techniques in the Selenium Client API. Selenium as of now gives
customer APIs to Java, C#, Ruby, JavaScrip, and Python.

8. Selenium RC (Remote Control)
Selenium Remote Control (RC) is a server, written in Java, Selenium RC acknowledges
program directions through HTTP and permits to compose automated tests in any
programming language, that causes Selenium to incorporate better with existing unit test
systems.

9. Selenium WebDriver
Selenium WebDriver has been presented after Selenium RC. Directions which are sent in
Selenese or through Client API are acknowledged by Selenium WebDriver and are sent to a
program.

10. Selenium Grid
Selenium Grid is a server that utilizations internet browsers running on remote machines to
run tests. With Selenium Grid, one server goes about as the center point which gets to
program cases. This spreads the heap of testing.

11. Picking Your Selenium Tool
A ton of learners likes to begin with Selenium IDE. In the event that you don’t have related
knowledge with a programming or scripting language, you may discover IDE ease to get
acquainted with Selenium directions for making necessary tests quick, inside seconds.

12. Adaptability and Extensibility
Selenium is profoundly adaptable. There are a lot of approaches to add usefulness to both
the Selenium test contents and Selenium’s system for altering your test automation.
This may be Selenium’s most noteworthy quality in contrast with other automation tools.
Additionally, Selenium is Open Source. Subsequently, the source code can generally be
downloaded and changed.