In this article, you’ll learn what Cypress is and how you can use it for unit and E2E testing purposes.
What Is Cypress?
What Exactly Is End-to-End Testing?
With the help of Cypress, End-to-End, integration and unit tests are really easy to write and debug. End-to-end testing (also called E2E) is a technique that scans the entire software, making sure that everything is working as expected. The goal of E2E testing is to check the software from the user's perspective to avoid malfunctions caused by a failure of any of the features in the system. End-to-End tests are usually conducted at the end of the development cycle, as they already cover the UI and analyze the users’ impressions about its looks and usage of the application.
Cypress versus Selenium
The Advantages of Cypress
There are many benefits of using Cypress for web application testing needs. We have already mentioned some of them in this article, but let’s take a closer look.
People enjoy working with Cypress because it provides a friendly and intuitive interface. This helps to execute tests quicker and more efficiently. What’s more, Cypress automatically waits for a command to complete before moving on to the next one, which eliminates the need for manual synchronization.
Built-in Support For Assertion Library
Cypress includes built-in support for assertion libraries and provides many different tools for debugging and troubleshooting tests. It’s an excellent choice for web application testing, providing great help and a variety of built-in solutions.
Natively Running In The Browser
Cypress can be run directly in the browser. There’s no need to open any additional program or tool outside of the browser you are usually using. It also makes it run your tests faster.
Debugging Live Inspect with Chrome Dev Tools
You can debug your web apps with Cypress quickly and easily. When tests fail, you immediately get suggestions for fixing the error. Then you can debug directly from Chrome DevTools. This way, you can interact directly with your browser’s console to see what’s going on with your application and what tests are currently running (if any).
Screenshots And Video Recording
Cypress comes with a build-in screenshot and video recorder to capture screenshots of test failures or record a video of the whole test while it’s running.
Another advantage of Cypress is its dashboard. It’s a framework’s paid service that provides a hosted dashboard service via which you can access all the recordings of the test you’ve run. Also, Cypress offers great documentation options.
As previously mentioned, Cypress is free and open-source. Since it operates on a freemium model, you can use the free version or go further and purchase a paid version with more advanced features, such as a dashboard with artifacts like snapshots, which are helpful for debugging, as well as video storage. You can find active Cypress communities on platforms such as GitHub, Gitter, and StackOverflow.
Are There Any Disadvantages?
After reading an impressive list of pros concerning using Cypress you may be wondering if there are any disadvantages at all. So the answer is yes, Cypress obviously has its limitations. Fortunately, there are not many of them.
Cypress is currently only supported by some browsers. It’ll run smoothly on Chrome, Firefox, Edge, Brave, and Electron browsers. As a result, Cypress is a less-favored tool for cross-browser testing.
No Multi-tab Support
Because Cypress runs inside the browser, it doesn’t permit the support of multiple tabs when running tests.
Cypress doesn’t allow visiting two different superdomains in the same test. What do we mean as a superdomain is more like a domain name, like google.com or facebook.com. You can visit two different superdomains during two different tests, that’s not an issue, but unfortunately not in the same test.
Do We Recommend Cypress?
Cypress is an amazing tool for End-to-End testing, especially because of the ease of test writing, great execution time, and simplicity of the debugging process. This all makes it a great and resourceful tool for developers, no matter their experience.
We hope that this portion of knowledge at least has sharpened your appetite for more. In case you want to learn more about Cypress or simply have some questions about it – please don’t hesitate to contact us by clicking the link below.