Suggest an editImprove this articleRefine the answer for “What is React Testing Library?”. Your changes go to moderation before they’re published.Approval requiredContentWhat you’re changing🇺🇸EN🇺🇦UAPreviewTitle (EN)Short answer (EN)**React Testing Library (RTL)** is a library for testing React components that checks their behavior the way a real user would interact with them, rather than how they are structured internally. **Key point:** RTL does not encourage access to a component's internals, only to what the user "sees," which makes tests more reliable and resistant to refactoring.Shown above the full answer for quick recall.Answer (EN)Image**React Testing Library (RTL)** is a library for testing React components that helps you check their behavior **the way a real user would interact with them**, rather than how they are structured internally. Its core idea: *test the result and behavior, not the implementation of the component.* --- ### **What it does** React Testing Library lets you: - render a component in a test environment - find elements the way a user would (by text, role, labels) - emulate actions (clicks, typing text, key presses) - check that the UI reacts correctly (text appeared, state changed, a handler was called, etc.) --- ### **How it differs from older approaches (for example, Enzyme)** | Approach | What it emphasizes | | --- | --- | | **Enzyme** | checking the internal implementation (state, methods, structure) | | **React Testing Library** | checking behavior and the result in the DOM | RTL does not encourage access to a component's internals, only to what the user "sees." --- ### **Why it is popular** - tests are more reliable and less fragile - tests reflect real user scenarios - simplifies maintenance: refactoring does not break the tests if the behavior has not changed --- ### **Summary** **React Testing Library is a tool for testing React components that focuses on behavior and user experience rather than internal implementation.** It lets you write realistic, stable and clear tests that genuinely help control UI quality.For the reviewerNote to the moderator (optional)Visible only to the moderator. Helps review go faster.