Using Nightwatch.js to write end-to-end tests

The blog post introduces end-to-end testing and the use of Nightwatch.js, a Node.js-based testing framework, to automate web browser tests. It explains how end-to-end testing evaluates the complete application from frontend to backend to ensure business use cases are met. Nightwatch.js utilizes the W3C WebDriver API to interact with browsers and offers features such as clean syntax, built-in test runners, and continuous integration capabilities. The post provides a detailed guide on setting up Nightwatch locally, including configuring browser drivers and the Selenium Server to run tests in parallel across different browsers for compatibility. It also demonstrates writing end-to-end tests for a React application and integrating these tests into a continuous integration pipeline using CircleCI. Additionally, the article highlights the importance of ensuring browser compatibility and accelerating development time by automating the testing process within a CI/CD pipeline.