Tell us about the specific checks and features of mobile testing.

Mobile testing has several specific features related to the characteristics of platforms and devices:

• Variety of devices and OS: it is necessary to test on different models of smartphones and OS versions (iOS, Android), as the app's behavior may differ.
• Performance and power consumption testing: it is important to check how the app affects the battery and uses device resources.
• Network operation testing: testing behavior when changing connection types (Wi-Fi, 3G, 4G), when losing connection, or with slow internet.
• Touch interface testing: checking gestures, touches, screen orientation (portrait/landscape).
• Permissions and security testing: proper functioning with permissions (access to camera, geolocation, etc.)
• Installation and update testing: verifying correct installation, updating, and removal of the app.
• Notifications and background processes testing: checking the operation of push notifications and background tasks.

Example: when testing an app on Android, it is important to verify that switching from Wi-Fi to mobile internet continues to work correctly without failures.