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React Native Testing Tools for Automated Testing

React Native is a cross-platform mobile application development framework for iOS and Android.

While React Native is the optimal business solution, humans make errors. Certain minor faults and edge situations have the potential to cascade into significant failures.

In certain circumstances, vulnerabilities result in a poor user experience, which eventually results in company losses. Thus, react native automated testing is critical since it assists you in identifying these errors and confirms that your code is functioning correctly.

Businesses are increasingly turning to React Native to develop cross-platform mobile apps. These apps are easily accessible across all major mobile app platforms.

By 2020, it is estimated that 42% of developers will be using React Native for cross-platform app development. This saves them significant time and money on building different apps for various platforms.

With mobile usage expanding faster than ever before, app developers and organizations must design apps correctly and guarantee they perform across several devices. 65% of developers across the globe prefer to use React Native since it is compatible with various OS versions, chipsets, and hardware requirements.

Jest

Jest is a lightweight JavaScript testing framework. It is a testing framework for resolving errors in the JavaScript source codebase. Jest provides JSDOM access to the DOM. While JSDOM is not a perfect representation of how the browser works, it is frequently sufficient for testing React component.

Facebook’s developers created Jest, which is pre-configured to operate with React Native. Snapshot testing is one of Jest’s most appealing features. Jest comes with excellent official documentation, and following the tutorial will enable you to execute it quickly. Jest is also the recommended tool in React Native documentation.

Major Highlights:

  • Rapid and secure.
  • By default, Mock simplifies testing.
  • Code coverage out of the box.
  • Snapshot testing is a feature of Jest that streamlines the testing process.

Detox

Detox is an end-to-end testing tool for React Native applications. Utilizing it may simulate user behavior and automatically test your applications to determine how users react to them. Moreover, it supports permissions, various device setups, alerts, and everything the user may like from the app.

Detox was built from the ground up to accommodate both React Native and pure native apps. It analyzes mobile applications while they are running on a simulator or an actual mobile device and interacts with them in the same way that any user would. When it relates to automated testing, E2E’s flakiness continues to be the primary issue.

Major Highlights:

  • Works in unison with the app.
  • It is simple to connect to any CI system.
  • For Gray box testing.
  • Self-employed test runner.

Mocha

Mocha is a feature-rich JavaScript framework that works in the browser and on Node.js. This contributes to the comfort and simplicity of asynchronous testing. Mocha tests are executed in a sequential fashion, which facilitates comprehensive and flexible monitoring. This assists in locating and mapping uncaught exceptions to the appropriate test cases.

Major Highlights:

  • Browser compatibility.
  • Reporting on test coverage.
  • Support for test retry.
  • Reporting that is comprehensive.
  • Support for the node debugger.
  • JavaScript API for test execution.

Jasmine

Jasmine is a behavior-driven development framework that is used to test JavaScript programs. It is not dependent on any other JavaScript frameworks and does not require one. It features a simple syntax that makes writing tests a breeze.

It is an open-source framework that can be simply ported to many platforms such as Ruby gem, stand-alone, and Node.js. Additionally, Jspec, Rspec, and JS Spec all have a significant effect on it.

Major Highlights:

  • There is no requirement to have DOM.
  • A framework for behavior-driven development that is used to validate JavaScript code.
  • Works on platforms that support JavaScript.
  • Unit testing frameworks have a significant impact on it.

Appium

Appium is a free and open-source tool for automating the development of mobile web, Native, and hybrid apps for the Android, iOS, and Windows desktop platforms. Appium supports cross-platform testing, enabling you to build tests using a single API and then execute them against various platforms. In essence, Appium enables code reuse across several test suites.

Major Highlights:

  • Open-source.
  • For mobile apps, this is a free test automation tool.
  • Create tests with dev tools that are compatible with any WebDriver-compliant language.
  • Utilize any framework for testing.
  • Easily switch between the native app and WebView automation.

Karma

Karma’s objective is to create a productive testing environment for developers. This situation will be centered on relieving developers of many setups and instead allowing them to write test code and receive quick feedback. Receiving such immediate feedback encourages engineers to be more innovative and productive.

Major Highlights:

  • Conduct tests on actual devices.
  • Testing framework-independent.
  • Remote control.
  • Simple debugging.
  • Source code is freely available.
  • Integrating continuously.

The test automation frameworks and technologies listed above are the most commonly used for native apps, mobile web applications, hybrid applications, and React Native applications. Therefore, if you’re a React Native developer or an application owner, giving such tools, a try may be beneficial.

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