Testing · Middle · Question 4 of 75

What does the warning “An update to Component inside a test was not wrapped in act(...)” usually mean?

✓Correct answer: State changed after the test stopped waiting - e.g. a request resolved after the last assertion
2React Testing Library is not installed
3The component uses class syntax

Explanation

RTL already wraps render and events in act. The fix is usually to wait for the final UI state with findBy/waitFor, not to add act manually.

Further reading

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