React Testing Library – A Way of Easy and Efficient Testing

Testing is generally seen as an arduous task. Often you end up spending hours to write extra code. However, every developer needs to go through this process as it determines the quality and efficiency of the overall project. There are over 2.9 million mobile apps in Google Play Store and 1.96 million apps in the Apple App Store. But there are only a few that manage to stand out.

One of the crucial steps that determine the efficient development of a mobile app is robust testing. React is a popular JavaScript library that allows you to build mobile apps with an exceptional user interface. It also has a testing library that makes it seamless for you to test the efficiency of the app without any hassle.

What Is the React Testing Library?

Among the many popular React Automation testing tools, the dedicated react testing library is rapidly gaining momentum. This lightweight testing solution was launched by Kent C. Dodds. It tests various components of the React application and is generally used together with Jest. By exhibiting better testing practices, the React testing library has replaced Enzyme. The light utility functions along with react-dom/test utils and this react-dom facilitates more powerful and seamless testing. The React testing library is highly valuable and allows testers to design a simple and comprehensive test harness for React hooks to seamlessly refactor the code ahead.

The main aim of this testing library is to offer a testing experience that feels like natively using a specific hook from a real component. Additionally, it allows testers to emphasize on accessing the library directly to test the various components and assess the outcomes.

This testing library allows testers to use the best testing practices such as accessibility and selector instead of coding. Moreover, the library allows you to work with particular element labels of the React components rather than just the composition of the user interface.

What are the principles of React Testing Library?

The primary guiding principle of this testing library is that the more the tests resemble the way the core software is used, the more reliability they can offer the testing team. To ascertain this, the tests designed in the React testing library depict the way users access the application. Other important guiding principles for the React testing library are:

  • Utility executions and APIsshould be straightforward and flexible.
  • Although the testing library is centred on react-dom, utilities are a part of it even if they do not directly connect with react-dom.
  • The tests should be useful for testing full React application as well as individual React components.
  • It centres on the DOM nodes instead of component occurrences.

What are the features of React Testing Library?

From offering tests that are more focused on users’ behaviour to supporting new features of React, there are tons of features of the React Testing Library. Some of the prominent features of React include:

  • It is supported and recommended by the main React community.
  • It streamlines the testing process of React components.
  • Along with React applications, it can be used to test other languages as well.
  • It allows the applications to be more accessible
  • It encourages testers two to create quality tests to ensure optimum accuracy
  • It allows identifying elements by data testing where the label and text content do not make sense.
  • The library allows testing to figure out how the components render
  • It eliminates testing the internal component state.

Whether it is a mobile app load testing solution or user-interface testing solutions, companies need to perform comprehensive testing to make a successful app. React testing library is a detailed solution that makes testing streamlined, accurate, and thorough.

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