As my journey to becoming a full stack developer continues, I have begun to encounter the need for front-end testing. When finding an article, I realized that I did not have very much knowledge on what front-end testing entailed or how to implement it into my coding. I found the blog “Front End Testing: A Comprehensive Overview” by Kiruthika Devaraj (https://testsigma.com/blog/front-end-testing/) on my search for information on this topic.
The blog starts off by explaining that front-end testing is focused on the user’s experience. While past experiences have taught me that back-end testing specifically tests the functionality of the code, front-end, also known as the user-facing end of a website, testing has a higher focus on the user’s interactions. The author also delves into eight different types of front-end testing and the elements that make up these different types:
- Unit Testing is the analysis and testing of the individual components to ensure they each work as intended.
- Acceptance Testing involves testing to ensure permissions, such as account accesses, are working properly.
- Visual Regression Testing tests for visual changes in the front-end by comparing a reference picture to a baseline image. This can typically create brittle tests that can fail due to the slightest changes in an element’s location on a page.
- Performance Testing measures an applications stability and responsiveness under different levels of simulated stress and traffic.
- Accessibility Testing ensures that individuals with visual impairments or other additional needs can still use and access the application to the fullest of their capabilities.
- End-to-End (E2E) Testing involves testing the application from start to finish while testing all components and systems for how they work together.
- Integration Testing is when each individual module is tested to ensure it has been implemented correctly.
- Cross-Browser Testing tests that the application works correctly across multiple browsers and confirms compatibility.
Devarj also provides tips for better front-end testing, the first tip is to always use a testing framework. These frameworks, also called front-end tools, are what actually run the tests. Although countless front-end tools exist, the blog provides information to 3 popular options; Testsigma, Selenium, and Ranorex. Testsigma and Selenium are both open-source front-end testing frameworks that may be worth investigating further, while Ranorexis a commercial framework that may be more than what I am currently looking for.
Front-End Testing Moving Forward
As I move to implement automated front-end testing into my projects, it is important to remember that the front-end testing is focused on ensuring the project is user-friendly, responsive, and visually appealing by testing the layout, design, and functionality across multiple browsers. Doing so will provide users with the best possible experience.