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What is End-to-End Testing?

End-to-end (E2E) testing is a software testing methodology that evaluates the complete workflow of an application, from start to finish, to ensure that all integrated components function correctly together. This type of testing simulates real user scenarios effectively, verifying that the system operates as expected in a production environment.

The process typically involves testing multiple interconnected systems, including databases, user interfaces, APIs, and network configurations. By assessing the entire application stack, E2E testing identifies issues that may not be detectable through unit or integration tests alone, ensuring a seamless user experience.

Automated end-to-end testing has become increasingly popular due to its efficiency in executing repetitive tests without human intervention. Tools such as Selenium, Cypress, and TestCafe facilitate the automation process, allowing teams to save time and reduce the chances of human errors.

In summary, end-to-end testing is integral to the software development lifecycle, serving as a critical checkpoint to validate that all application components work harmoniously while meeting user requirements and performance criteria.

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