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fireEvent.change fires one bare event. My form's validation listens for the events a real keystroke actually sends.
What you'll have at the end
The same interaction tests rewritten with user-event, firing the real key and pointer events a browser would
You need
A Vitest and Testing Library suite that already renders a component and asserts on it, plus one form field whose real validation runs inside a keydown or keyup handler rather than only on change.
Not covered
Timing how long a debounced handler waits before firing, or deciding whether an interaction belongs in this suite at all versus a real browser test; this recipe only changes how an already-decided interaction gets simulated.
Leans on
Get your first Vitest test passing against a real component
when there's no passing component test to start from yet, and the environment and matchers need wiring up first
Testing a debounced input without waiting out the real delay
when user-event's own timing collides with a debounced handler, since the delay itself needs simulating alongside the keystrokes
Checked 25 Aug 2026
Part of the Vitest Testing Framework cookbook