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Explore the official Cypress documentation for comprehensive guides, features, commands, and best practices for efficient web application testing.
With built-in retrying and customizable timeouts, Cypress sidesteps all of these flaky issues. Core Concept. Cypress wraps all DOM queries with robust retry-and-timeout logic that better suits how real web apps work. We trade a minor change in how we find DOM elements for a major stability upgrade to all of our tests.
Install Cypress via your preferred package manager. This will install Cypress locally as a dev dependency for your project. For pnpm, make sure that you have the pnpm environment installed: npm install pnpm@latest --global. npm. yarn. pnpm. npm install cypress --save-dev. yarn add cypress --dev. pnpm add --save-dev cypress.
Cypress is a next generation front end testing tool built for the modern web. We address the key pain points teams face when testing modern applications and maintaining test suites. Our users are typically developers, QA engineers, and teams looking to build web applications and increase the quality of their existing applications.
Spec files. Test files are located in cypress/e2e by default, but can be configured to another directory. Test files may be written as: Cypress also supports ES2015 out of the box. You can use either ES2015 modules or CommonJS modules. This means you can import or require both npm packages and local relative modules.
Cypress Studio provides a visual way to generate tests within Cypress by recording interactions against the application under test. Cypress Studio is available only in end-to-end tests, and must be enabled via the e2e.experimentalStudio flag. For more details, read our blog post. Addresses #23461. Adds Svelte component testing support. This ...
Set up intelligent code completion for Cypress commands and assertions. Record your test results to Cypress Cloud for advanced features like parallelization, flake detection, and more. Check out the Real World App (RWA) for practical demonstrations of Cypress testing practices, configuration, and strategies in a real-world project.
The Cypress team maintains the Real World App (RWA), a full stack example application that demonstrates best practices and scalable strategies with Cypress in practical and realistic scenarios. The RWA achieves full code-coverage with end-to-end tests across multiple browsers and device sizes , but also includes visual regression tests , API ...
New users to Cypress may initially find it challenging to work with the asynchronous nature of our APIs.There are many ways to reference, compare and utilize the objects that Cypress commands yield you. Once you get the hang of async code you'll realize you can do everything you could do synchronously, without your code doing any backflips.
Setting. There are different ways to set environment variables. Each has a slightly different use case. To summarize you can: Set in your configuration file. Create a cypress.env.json. Export as CYPRESS_*. Pass in the CLI as --env. Set an environment variable within test configuration.