Introduction to Cypress Real-World App
The Cypress Real-World App (RWA) serves as an educational tool designed to demonstrate practical uses of Cypress testing methods. This application is meant for learning purposes, giving users a feel for how real-world applications are built and tested using Cypress. Despite its realistic features, it is not a complete production system but rather a resource for those looking to practice their application testing skills with Cypress.
Key Features
- Technology Stack: The app is developed using popular technologies such as React, XState, Express, lowdb, Material-UI, and TypeScript.
- Database: Uses a local JSON database, eliminating the need for complex database setups.
- Application Structure: It is a complete full-stack application with both frontend and backend components.
- Authentication: Includes local user authentication to manage sessions.
- Seeding and Testing: It's equipped with database seeding capabilities and end-to-end tests.
- Integration with CI/CD and Cypress Cloud: Designed to work well with continuous integration and delivery pipelines as well as Cypress Cloud, which is used for test monitoring.
Getting Started
To get up and running with the Cypress Real-World App, users must have Node.js and Yarn Classic installed. The application comes pre-packaged with example data, allowing immediate access and testing with no additional configuration required. Here’s how you can set it up:
-
Installation:
- You need to clone the repository from GitHub and install the necessary dependencies. This is done via a few simple terminal commands.
-
Run the Application:
- With everything set up, the application can be launched to serve the frontend and backend parts on default ports.
-
Initiate Cypress:
- Once the application is running, Cypress can be opened to start writing and executing tests.
Testing
The project comes with various test types situated within specific directories, including API tests, UI tests, component tests, and unit tests. The testing framework is robust enough to allow for extensive verification of all application components:
- API tests cover backend functionalities.
- UI tests validate the frontend features.
- Component tests are located alongside the respective components in the source directory.
- Unit tests focus on individual units or sections of code to ensure correctness.
Database Management
- The local JSON database, managed by lowdb, is regularly reseeded every time the application starts, ensuring a clean testing environment.
- Users can also generate a new database with fresh data as needed.
Additional Features and Scripts
Several npm scripts are included to assist with development, testing, and debugging processes. These scripts can start the server, validate types, seed the database, run tests, and more.
Code Coverage
Code coverage is an essential part of identifying untested parts of your application. The project uses the @cypress/code-coverage plugin to generate coverage reports. These reports can be viewed locally following a series of Cypress test executions.
Authentication Providers
The application demonstrates the use of third-party authentication systems such as Auth0, Okta, Amazon Cognito, and Google. It provides detailed guides for each provider to help configure and integrate these services effectively into your application tests.
Conclusion
The Cypress Real-World App is an excellent resource for developers and testers to gain practical experience with full-stack application development and testing. It provides a comprehensive environment complete with modern frameworks, testing strategies, and deployment practices, equipped especially to help users understand and leverage Cypress testing in real-world scenarios.