Unit tests

The homepage and the video page are tested.

A test case consists of input parameter values and expected results.

External libraries and components (e.g., next/navigation, next/image, framer-motion) are stubbed or mocked as needed.

HomePage tests

• Mocks useRouter, next/image, and motion from framer-motion.
• Tests:
  • Renders the "Popular Videos" heading.
  • Renders exactly 6 thumbnails (images).
  • Clicking on a thumbnail does not break the UI (sanity click test).

VideoPage tests

• Mocks useRouter and useSearchParams.
• Tests:
  • Renders the back button correctly when URL and preferences are present.