What are the best practices for testing React hooks with React Testing Library?

What are the best practices for testing React hooks with React Testing Library?

When testing React hooks, it's important to isolate the hook's logic. Use the renderHook function from React Testing Library.

Can you give me an example of how to use renderHook?

Sure! You can use it like this: const { result } = renderHook(() => useMyHook()); This allows you to access the hook's return value.

What about testing side effects in hooks?

For side effects, you can use act to ensure that updates are applied correctly. Wrap your calls in act(() => { ... }).

Are there any common pitfalls to avoid?

Yes, avoid testing implementation details. Focus on the behavior of the hook instead of its internal workings.