Test an Android app that integrates the CometChat v6 UI Kit — make the SDK mockable behind a repository, unit-test the init/login gate and credential hygiene, write instrumented/Compose UI tests for chat screens, and know honestly what can only be checked on a device. Triggers: 'how do I test my cometchat android app', 'mock cometchat in tests', 'compose ui test chat screen', 'unit test cometchat login'.
