Explore the diverse world of software bugs and effective testing strategies in this 34-minute conference talk from React Summit 2020. Delve into the various types of bugs that can plague applications, from long-standing issues to sudden dependency-related problems. Learn how different testing methodologies, including snapshot, unit, integration, end-to-end, and automated visual tests, can be leveraged to catch and prevent these elusive errors. Discover the challenges and opportunities associated with each testing approach, and gain insights into implementing robust test automation using modern front-end technologies. Equip yourself with the knowledge to move fast, refactor code confidently, and build more reliable user interfaces in React applications.