Android Espresso, Wake up device before test. How to use a custom manifest for test?

Question

I\'ve been writing tests with androids new espresso framework and find that it works well. One annoying thing (not particular to espresso) is that I have to make sure my scr

Answer 1

Although you already have accepted Matt Wolve answer, I think that polluting your code with test boilerplate is not a good idea (I am aware that using Espresso there are some situations where you have to, like adding idle flags for custom IdlingResources). I would like to add another approach:

    @ClassRule
    public static ActivityTestRule<HomeActivity> mActivityRuleSetUp = new ActivityTestRule<>(
            HomeActivity.class);


    private static void wakeUpDevice(){
        if (BuildConfig.DEBUG){
            HomeActivity homeActivity = mActivityRuleSetUp.getActivity();

            KeyguardManager myKM = (KeyguardManager) homeActivity.getSystemService(HomeActivity.KEYGUARD_SERVICE);
            boolean isPhoneLocked = myKM.inKeyguardRestrictedInputMode();

            if (isPhoneLocked){
                homeActivity.getWindow().addFlags(WindowManager.LayoutParams.FLAG_TURN_SCREEN_ON
                        | WindowManager.LayoutParams.FLAG_SHOW_WHEN_LOCKED
                        | WindowManager.LayoutParams.FLAG_DISMISS_KEYGUARD);
            }
        }
     }


    @BeforeClass
    public static void setUp(){
        wakeUpDevice();
    }

Hope it helps.

Answer 2

The easiest approach is to use adb command like below if you are running the tests from CI environment for example:

adb -s $DEVICE_ID shell input keyevent 82

This will unlock your device screen.