Automation testing is an essential part of the software development life cycle and is crucial for ensuring your product is as good as you want it to be. The primary goal of automation testing is to uncover the maximum number of bugs and deliver a successful product release.
What is Selenium
It is further categorized as:
- Selenium IDE: Selenium Integrated Development Environment (IDE) is a Firefox and Chrome plugin that one can use to automate web actions. Keep in mind that the plugin is quick and the code generated is too complicated to be used in automation test scripts. So it is good for rapid prototyping, but for complex cross-browser testing you can use Selenium WebDriver.
- Selenium WebDriver: Also known as Selenium 2.0, Selenium WebDriver is a web framework that accepts commands from language binding and forwards them to a browser. It also permits you to execute cross-browser tests. Selenium WebDriver is able to handle window components, but to overcome this drawback, you can use tools like Auto IT and Sikuli.
- Selenium Grid: Selenium Grid is a tool that specializes in running multiple tests across multiple virtual or physical machines in parallel. It dramatically speeds up the testing process across web browsers and platforms. Selenium Grid is a hybrid of a hub and a set of nodes.
- The Hub (server): The hub can also be called a server. It acts as the central point from which the tests will be set off. A Selenium Grid supports only one hub and it is launched on a single machine once.
- Node (remote device): − Nodes are the different browsers connected to a single hub. There can be a couple of nodes in a grid that can be on any operating system and can use any of the Selenium-supported browsers.
There are lots of frameworks and tools available in the market for automation testing. But Selenium is the first choice of QA engineers over the past decade.
Features of Selenium web automation are:
- Open-source and portable.
- Supports a wide range of web browsers like Mozilla Firefox, Safari, Google Chrome, and many more.
- Supports multiple Operating systems like Windows, macOS, Linux, etc.
- Easy to integrate with continuous integration and continuous delivery (CI/CD) like CircleCI, GitLab CI, and many more.
- Easy to integrate with famous testing frameworks.
- These technologies are free to use and are open source.
- It is wrapped with advanced security and is completely safe to use.
Nightwatch open-source automated testing framework built in node.js, that simplifies the integration. It offers end-to-end testing of a web application with the help of Selenium WebDriver API. Night watch can be used for both integrating testing and unit testing. It has an inbuilt command-line test runner for testing.
Protractor is used for Angular JS-based web applications. It is an open-source testing framework written in Node.js. Protractor is primarily used for end-to-end testing of Angular web applications. It is easy to set up parallel execution of test cases against different environments, and supports both Angular and Non-Angular applications.
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