How do I send shell command in Espresso Test

Question

I am new to Espresso. I want to test UI performance for an app(fluidity). I can create custom annotation in Espresso for getting fluidity for a particular test or automate new test cases. Does anyone know how to send command like "adb shell dumpsys gfxinfo app_package" from an espresso test?

Answer 1

There's a method android.app.UiAutomation#executeShellCommand added in Android 21. And then just reading the result is needed with sth similar to what was implemented in the project screenshot-tests-for-android: implemented here