React testing practices are evolving as teams transition from using Enzyme to adopting React Testing Library (RTL) due to changes in testing philosophy and the evolution of React itself. Enzyme, once popular for its granular control over component internals and support for shallow rendering, has become less viable with the introduction of new React features like hooks, suspense, and concurrent rendering, which Enzyme struggles to support due to its reliance on private APIs. The shift to RTL reflects a broader move towards behavior-focused testing, emphasizing what the user sees and interacts with rather than internal component details, leading to more robust and maintainable tests. This transition involves migrating tests from Enzyme to RTL, which supports modern React features and aligns with user-centered testing philosophies, ensuring tests remain stable through component refactors. The migration process includes steps to replace Enzyme’s implementation-focused methods with RTL’s user-first approach, offering practical examples for testing components, hooks, context, and Redux-connected components.