Testing RecyclerView if it has data with Espresso

Issue

I need to write a test to click, let's say on the first item in my RecyclerView. At some cases the RecyclerView will be empty and therefore if I click on the position with 0 index it will fail. How do I write a test like this? To check first if the recyclerView not empty and then click on the specific position?

Solution

There are a little bit different scenarios in question and in the comment.

Let's implement the next test scenario: If recycler view does not contain anything, do nothing. If recycler view has at least one element, click on the first.

@Rule
public final ActivityTestRule<YourActivity> mActivityRule = new ActivityTestRule<>(YourActivity.class);

@Test
public void testSample(){
    if (getRVcount() > 0){
        onView(withId(R.id.our_recycler_view)).perform(RecyclerViewActions.actionOnItemAtPosition(0, click()));
    }
}

private int getRVcount(){
    RecyclerView recyclerView = (RecyclerView) mActivityRule.getActivity().findViewById(R.id.our_recycler_view);
    return recyclerView.getAdapter().getItemCount();
}

Answered By - Dmitriy