How Selenium WebDriver Works
Selenium requires a web driver to interface with the chosen browser. Web drivers are a package to interact with a web browser. It interacts with the web browser or a remote web server through a wire protocol which is common to all. You can check out and install the web drivers of your browser choice.
Selenium Web Driver automates and controls initiated by the web browser. It does not rely on JavaScript for automation. It controls the browser directly by communicating with it.
- Chrome: https://sites.google.com/a/chromium.org/chromedriver/downloads
- Firefox: https://github.com/mozilla/geckodriver/releases
- Safari: https://webkit.org/blog/6900/webdriver-support-in-safari-10/
Selenium WebDriver Automates Web browsers through a three-step process:
- Command Translation: Your test commands are converted into HTTP requests using a protocol called JSON wire protocol.
- Browser Driver Initialization: Each web browser you want to automate has a corresponding browser driver (e.g., ChromeDriver for Chrome). When you run your Selenium script, the browser driver is initialized, which starts an HTTP server.
- Command Execution: The browser receives instructions through the initialized HTTP server and carries them out.
Example: Launching Chrome and Navigating to a Website
Java:
WebDriver driver = new ChromeDriver();driver.get(“https://www.w3wiki.com”);
Types of Request:
- GET: GET request is used to read/retrieve data from a web server. GET returns an HTTP status code of 200 (OK) if the data is successfully retrieved from the server.
- POST: POST request is used to send data (file, form data, etc.) to the server. On successful creation, it returns an HTTP status code of 201.
Selenium WebDriver Tutorial | Working, Benefits and Limitations
Selenium WebDriver is one of the most important part of of the Selenium test suite and this Selenium WebDrive Tutorial will provide you with the answer to why it is the most important Selenium suite, along with all the basic concepts.
Selenium is an open-source program that automates web browsers. Selenium Webdriver is mainly used to execute the scripts according to the browser we are using. Selenium is a powerful tool for controlling web browsers through programs.
It is functional for all browsers, works on all major OS, and its scripts are written in various languages, i.e., Python, Java, C#, etc., we will be working with Python. Selenium has four major components Selenium IDE, Selenium RC, Selenium Web driver, and Selenium GRID.
Table of Content
- What is Selenium?
- Selenium Components
- What is Selenium WebDriver?
- Selenium WebDriver Framework Architecture
- Basic Steps in a Selenium WebDriver Script
- How Selenium WebDriver Works
- How to use Selenium WebDriver in Java:
- Benefits of Selenium WebDriver
- Limitations of Selenium WebDriver
Contact Us