FrontendHaltTesting·Advanced·Conceptual·1 min read
How does user-event differ from fireEvent?
Short interview answer
fireEvent dispatches a single synthetic event. user-event simulates the full sequence a real interaction produces — for a click that includes pointer events, focus, and mouse events; for typing it includes keydown, input, and keyup per character — so it catches bugs that only appear in the real sequence.
Key takeaway
Explain the underlying mental model clearly, then support it with a concrete example and its trade-offs.