How to rotate activity, I mean: screen orientation change using Espresso?

Question

I have decided that one of the testing criteria for my application tests with Google\'s Espresso is:

Test should maintain Activity state after s

Answer 1

You can't mix Robotium and Espresso tests. The best way sometimes to solve any issue is to check source code of desired but not comaptible method.

I'm pretty sure that you have already setUp() method, which has code like:

myActivity = this.getActivity();

Use this to change your screen orientation change:

myActivity.setRequestedOrientation(ActivityInfo.SCREEN_ORIENTATION_LANDSCAPE);

or

myActivity.setRequestedOrientation(ActivityInfo.SCREEN_ORIENTATION_PORTRAIT);

You may also need to use myActivity.getInstrumentation().waitForIdleSync(); or Thread.sleep(milliseconds); in order to wait for the rotation end because it is performed in Async manner. The second methods depends on emulator/device so choose it wisely.

Hope it help.