End to End (E2E) Testing Best Practices

End-to-End (E2E) testing is a crucial process in the development and operation of applications, websites, and services, as it ensures products meet the evolving needs of users by replicating real-world user workflows. By using actual browsers or APIs, E2E testing helps identify issues related to speed, reliability, and user experience, allowing teams to make necessary adjustments to improve the application. The process involves determining possible user workflows, creating tests for each, and making changes based on test data to enhance user satisfaction and loyalty. Best practices for E2E testing include focusing on popular workflows, breaking larger tests into smaller ones, designing realistic tests, and incorporating automation to improve efficiency. Popular tools like LoadNinja, Datadog, and PagerDuty can aid in monitoring and automating E2E testing, ensuring quick identification and resolution of any issues that may arise, ultimately helping to maintain a seamless and engaging user experience.