In CI/CD pipelines, developers execute tests on code before committing changes to a branch. After some quick unit testing within the IDE, functional and instrumentation testing take precedence.
You can execute some instrumented tests on Android emulator. An example would be verifying that the code correctly handles app-specific or core platform resource files (like font, animations, UI, etc.), or testing to see if external dependencies on ‘sign-up via connected apps’ (Facebook, Google etc.) functionality works.
App Performance testing is done to verify that interactions are smooth, that there’s no jank (dropped frames), and that the app uses device resources (battery and memory) within reasonable constraints. To get accurate results, you first need an accurate measure of the CPU and graphics capabilities of the target device.
At best, the Android emulator can give you virtual devices running on near-native speed. There’s no way you can expect native results with them. On virtual devices, you can’t test your Android app’s performance against any benchmarks.
Plus-and this goes without saying-there’s no easy or reliable workaround that’d let you test native or web apps at scale with Android emulators.
For serious, pre-release cross browser testing (on UI and all functionalities), you will need a diverse collection of real Android devices. QA engineers use testing automation frameworks like Appium or Espresso, write test scripts, and execute them on as many different Android devices as necessary to meet the benchmarked compatibility standards for a given target market.
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