How to Start With Cypress

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The web has evolved. Finally, testing has also. Cypress is a modern testing tool that answers the testing needs of modern web applications. It has been gaining a lot of traction in the last couple of years, gaining worldwide popularity. If you have been waiting to learn Cypress, wait no more! Filip Hric will guide you through the first steps on how to start using Cypress and set up a project on your own. The good news is, learning Cypress is incredibly easy. You'll write your first test in no time, and then you'll discover how to write a full end-to-end test for a modern web application. You'll learn the core concepts like retry-ability. Discover how to work and interact with your application and learn how to combine API and UI tests. Throughout this whole workshop, we will write code and do practical exercises. You will leave with a hands-on experience that you can translate to your own project.

This workshop has been presented at TestJS Summit 2022, check out the latest edition of this JavaScript Conference.

FAQ

The Cypress intercept command is used to monitor API calls made by the application during testing. It allows you to watch for specific requests and provides the ability to test those requests without sending them yourself, unlike the cy.request command which is used to manually send requests.

To handle asynchronous loading elements in tests, you can use the Cypress 'wait' command to delay assertions until certain API requests are completed. Additionally, you can use UI elements like loaders to detect when loading is in progress and ensure they disappear before proceeding with further assertions.

The 'then' command in Cypress is used for assertions and executing functions based on the command chain's yield without retrying, ideal for singular, non-changing values like API responses. In contrast, the 'should' command automatically retries the preceding command until the assertion passes or fails, useful for testing dynamic DOM elements.

Plugins can extend the capabilities of Cypress by integrating additional functionalities not provided by default. For example, plugins can enable native system events like hover, handle file downloads, or provide UIs for API testing, thereby accommodating more complex testing scenarios and requirements.

To manage setup states in Cypress, you can use API calls to set the application in the required state instead of repeating UI actions. This approach is efficient for bypassing repetitive login procedures or data setups. The cy.request or cy.intercept commands can be utilized to prepare the application state before tests are executed.

Filip Hric
Filip Hric
146 min
21 Nov, 2022

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