What are the test cases for testing timeouts in a mobile application?

• Network timeouts:
  • Data loading (lists, images, videos).
  • Data sending (forms, comments).
  • Authentication/authorization.
  • Synchronization with the server.
  • Actions requiring interaction with external services.
• Session timeouts:
  • Automatic logout after a specified period of inactivity.
  • Extending the session during user activity.
  • Application behavior when the session expires (e.g., re-authentication prompt, saving unsaved data).
• API timeouts:
  • Handling responses from server API that are delayed or not received on time.
  • Application behavior when partial data is received due to a timeout.
• Input timeouts:
  • Timeout waiting for user input in certain scenarios (e.g., entering a code from SMS).
• Animation/transition timeouts:
  • Ensuring animations or screen transitions do not "hang" and complete in a reasonable time.
• Background task timeouts:
  • Checking completion or error handling during long-running background tasks (e.g., uploading large files, data processing).
• Device/service interactions:
  • Timeouts when connecting to Bluetooth devices, printers, external sensors.
  • Timeouts when using geolocation services.
• Resource access timeouts:
  • Timeouts when accessing local device resources that may be blocked or unavailable.

Testing methods include using tools to simulate poor network conditions (Network Link Conditioner, Charles Proxy, Proxyman), changing device system time, and introducing delays on the server side (for API timeout testing). It is important to verify not only the timeout event itself but also the correct display of the error to the user and the ability to retry the action.