Description: End-to-end testing (E2E) is a validation approach that evaluates the complete flow of an application, from start to finish, ensuring that all components interact correctly. This type of testing simulates the behavior of the end user, allowing verification that the functionalities of the application behave as expected in a real environment. E2E tests are crucial in the context of CI/CD (Continuous Integration/Continuous Deployment) and agile methodologies, as they help detect errors early in the development process, facilitating the delivery of high-quality software. These tests cover everything from the user interface to databases and external services, ensuring that each part of the system works together. Additionally, they help validate the user experience, ensuring that the application not only functions correctly but is also intuitive and satisfactory. In an agile environment, where changes are frequent and rapid, E2E testing becomes an essential tool for maintaining confidence in the software as iterations are made and new features are implemented.
