Tell us about your experience in testing user interfaces.

In my experience testing user interfaces, I have used both manual and automated testing. For automation, I employed tools like Espresso and UI Automator for Android, which allowed me to verify the correctness of element display, their interactions, and navigation within the app. I also wrote tests that simulate user actions — taps, text input, scrolls — and checked the expected results, which increased the stability and quality of the product.